Twelve people can build 30 chairs in 8 hours. How many chairs can the people build in 100 hours
Answer:
375
Step-by-step explanation:
In the number .75, which number is in the tens place?
5
OOOO
75
7
Answer:
7 is in the tens place because 5 holds the place value of ones in the number 75
Answer:
7
Step-by-step explanation:
number 7 is in the tens place because the order goes ten's..... hundreds........ thousands..... and so on
PLEASE HELP!! Which expression is equivalent to 15+3(x-4)?
A. 14x
B. 3x +3
C. 18x-4
D. 18x - 72
The expression 15+3(x-4) is equivalent to 3x +3 which is option B . I hope that helps!
a healthcare provider saw that 48% of their members received their flu shot in a recent year. the healthcare provider tried a new advertising strategy in the following year, and they took a sample of members to test if the proportion who received their flu shot had changed. does the data provide convincing evidence that the proportion of members who received their flu shot changed from the most recent year?
We reject the null hypothesis and conclude that there is convincing evidence that the proportion of members who received their flu shot changed from the most recent year.
To answer this question, we need to perform a hypothesis test. Let's set up the null and alternative hypotheses:
Null hypothesis: The proportion of members who received their flu shot did not change from the most recent year, p = 0.48.
Alternative hypothesis: The proportion of members who received their flu shot changed from the most recent year, p ≠ 0.48.
We can use a significance level of α = 0.05, which means we want to be 95% confident in our conclusion.
Let's say the healthcare provider took a sample of 500 members and found that 260 of them received their flu shot.
We can calculate the test statistic as follows:
z = (P - p) / sqrt(p(1-p)/n)
where P is the sample proportion, p is the null hypothesis proportion, and n is the sample size.
Using the values given above, we get:
z = (0.52 - 0.48) / sqrt(0.48*0.52/500) = 2.29
This test statistic has a p-value of 0.022, which is less than our significance level of 0.05. Therefore, we reject the null hypothesis and conclude that there is convincing evidence that the proportion of members who received their flu shot changed from the most recent year. The healthcare provider's new advertising strategy appears to have had an impact.
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6=2/3p How should you show your work to isolate
the variable in the following equation?
Answer:
Look below.
Step-by-step explanation:
As 3/2 is the multiplicative inverse (reciprocal) of 2/3, multiply 3/2 to both sides.
6 = 2/3p Write the original equation.
6 · 3/2 = 2/3 · 3/2 · p Multiply the reciprocal of 2/3 (3/2) to both sides.
18/2 = p Simplify.
p = 9 Simplify.
Answer:
Your Answer is w =3
Step-by-step explanation:
Hope this helps
1. In parallelogram ABCD, what is the relationship between angle a° and angle b°?
a° = b°
a° - b° = 180°
a° = -b°
a° + b° = 180°
2. In rectangle FGHK, FC = CH = 8. 5 cm. What is the area of rectangle FGHK?
8. 5cm
120cm
125. 5cm
15cm
3. In rectangle FGHK, FC = CH = 8. 5 cm. What is the length of GK?
8 cm
8. 5 cm
15. 5 cm
17 cm
4. In parallelogram EFGH, what is the relationship between angle e and angle g?
e° – g° = 180°
e° = -g°
e° = g°
e° + g° = 180°
1. In parallelogram ABCD, the sum of ∠a and ∠b is 180 degree. So the option d "a° + b° = 180°" is correct.
2. In rectangle FGHK, FC = CH = 8. 5 cm, then the area of rectangle FGHK is 120 square cm. So the option b is correct.
3. The length of GK is 17 cm because the length of all diagonal is same in rectangle. So the option d is correct.
4. In parallelogram EFGH, the sum of ∠e and ∠f is 180 degree. So the option d "a° + b° = 180°" is correct.
1. In parallelogram ABCD, ∠a and ∠b are adjacent to each other.
So, AB║DC.
Then we get ∠a and ∠b as subsequent interior angles, both of which need to be added.
So the sum of ∠a and ∠b is 180 degree.
a° + b° = 180°
2. In rectangle FGHK, FC = CH = 8. 5 cm.
From the diagram, FG = 8 cm
FH = FC + CH
FH = 8.5 + 8.5
FH = 17 cm
Using Pythagorean Theorem to find the value of GH.
FH^2 = FG^2 + GH^2
(17)^2 = (8)^2 + GH^2
289 = 64 + GH^2
Subtract 64 on both side, we get
GH^2 = 225
Taking square root on both side, we get
GH = 15 cm
The area of rectangle = FG × GH
The area of rectangle = 8 × 15
The area of rectangle = 120 square cm
3. In rectangle FGHK, FC = CH = 8. 5 cm.
So FH = FC + CH
FH = 8.5 + 8.5
FH = 17 cm
As, a rectangle is split into two congruent right triangles by a diagonal. The length of the rectangle's diagonals are all the same.
So GK = FH = 17 cm
4. In parallelogram EFGH, ∠e and ∠f are adjacent to each other.
So, EF║HG.
Then we get ∠e and ∠f as subsequent interior angles, both of which need to be added.
So the sum of ∠e and ∠f is 180 degree.
e° + f° = 180°
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Esb poles are placed along a road 70 metres apart. What is the distance between the 1st and the 3rd poles
The distance between the 1st and the 3rd poles is 140 meters.
What is the arithmetic operation?
The four fundamental operations of arithmetic are addition, subtraction, multiplication, and division of two or more quantities. Included in them is the study of numbers, especially the order of operations, which is important for all other areas of mathematics, including algebra, data management, and geometry. The rules of arithmetic operations are required in order to answer the problem.
ESB poles are placed along a road 70 meters apart.
So the distance between two poles is 70 meters.
So the distance between 1 and 3rd will be = 2*70 =140metets
Hence, the distance between the 1st and the 3rd poles is 140 meters.
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Complete Question:
Esb poles are placed along a road 70 metres apart. What is the distance between the 1st and the 3rd poles?
A pond is initially stocked with 350 fish. After 5 years, it is estimated that the fish population in the pond has grown to 625 . Assume the fish population is growing exponentially. (a) Find a model in the form P(t)=Po∗a^t
which models the number of fish in the pond t years after it is initially stocked. (b) How many fish will there be after 25 years? Round to the nearest whole number. (c) How long will it take for the population to reach 3000 fish? Round to two decimal places.
a) The model for the number of fish in the pond is P(t) = 350 * (1.1265)^t.
b) Rounding to the nearest whole number, there will be approximately 1108 fish after 25 years.
c) It will take approximately 16.22 years for the population to reach 3000 fish.
(a) To find a model that represents the fish population in the pond, we can use the formula P(t) = Po * a^t, where P(t) represents the population at time t, Po is the initial population, a is the growth rate, and t is the number of years.
In this case, the initial population (Po) is 350, and after 5 years, the population is estimated to be 625. Let's plug in these values to find the growth rate (a).
625 = 350 * a^5
To solve for a, we need to isolate it. We can divide both sides of the equation by 350:
625/350 = (350 * a^5) / 350
Simplifying this equation gives us:
1.7857 = a^5
Now, to solve for a, we can take the fifth root of both sides:
a = ∛(1.7857)
Calculating this gives us:
a ≈ 1.1265
Therefore, the model for the number of fish in the pond is P(t) = 350 * (1.1265)^t.
(b) To find the number of fish after 25 years, we can plug in t = 25 into the model:
P(25) = 350 * (1.1265)^25
Calculating this gives us:
P(25) ≈ 1107.95
Rounding to the nearest whole number, there will be approximately 1108 fish after 25 years.
(c) To find how long it will take for the population to reach 3000 fish, we can set up the equation P(t) = 3000 and solve for t. Using the model P(t) = 350 * (1.1265)^t:
350 * (1.1265)^t = 3000
Dividing both sides by 350:
(1.1265)^t = 8.5714
To solve for t, we can take the logarithm of both sides:
t * log(1.1265) = log(8.5714)
Dividing both sides by log(1.1265):
t = log(8.5714) / log(1.1265)
Calculating this gives us:
t ≈ 16.22
Therefore, it will take approximately 16.22 years for the population to reach 3000 fish.
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7 times 10 four square in standard notation
The standard notation of the given term is 70,000.
What is standard notation?A form of writing a certain number, an equation, or an expression in a way that adheres to set norms is known as a standard notation.
Given a phrase
7 times 10 four square
so 10 four square is 10 to the power 4
10 four square = 10⁴
and 7 times 10⁴ = 7 x 10⁴
the standard form of 7 x 10⁴ is
10⁴ = 10,000
7 x 10⁴ = 7 x 10,000
7 x 10⁴ = 70,000
Hence standard form is 70,000.
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A fair spinner has 11 equal sections: 4 red, 3 blue and 4 green. It is spun twice. What is the probability of getting not green then green?
Answer: 7/11 probability it doesn’t land on green
The perimeter of a square is 12x - 8. Which of the following is the length of
one side of the square?
Answer:
3x-2
Step-by-step explanation:
12x-8/4 = 3x-2 is one side length of a square
The last time it placed an order for ingredients, Sweet Treats Bakery ordered 7,160 kilograms of sugar. This time, the bakery is ordering 40% less sugar. How much sugar is that?
Answer:
4296 kg
Step-by-step explanation:
40/100 = x/7160
716 times 6 is 4296
What is...
2 + 2?
yes this is for easy points
Answer: 4?
Step-by-step explanation: hehe
(is brainliest to much to ask for?) THaNK YOU
Answer:
2+2=4
Thanks for points!! :)
the polynomial below is a perfect square trinomial of the form A^2-2AB+B^2. 9x^2 - 30x + 25
Answer:
Step-by-step explanation:
Hello,
\(9x^2-30x+25 = (3x)^2-2*5*3x+5^2 = (3x-5)^2\)
so A=3x and B=5
hope this helps
Answer:
true
Step-by-step explanation:
i just took the apex quiz
Figure 1 and figure 2 are right triangles.
two right triangles labeled figure 1 and figure 2, where the legs of figure 1 are 3 units long and the legs of figure 2 are 4 units long
What scale factor was used to produce Figure 2 from Figure 1?
3
4
3 over 4
4 over 3
Answer:
4/3
Step-by-step explanation:
To find the scale factor from figure 1 to figure 2, divide a length in figure 2 by its corresponding length in figure 1.
Both legs of figure 1 measure 3 units.
Both legs of figure 2 measure 4 units.
Each leg measuring 3 units corresponds to a leg measuring 4.
scale factor = (length in figure 2)/(corresponding length in figure 1)
scale factor = 4/3
Check:
The way a scale factor works is that when you multiply a length in figure 1 by the scale factor, you get the corresponding length in figure 2.
figure 1 length: 3
scale factor: 4/3
product: 3 × 4/3 = 12/3 = 4
Yes, we do the correct length in figure 2, so our scale factor of 4/3 is correct.
A study compared the effects of regular-fat cheese to an equal amount of reduced-fat cheese on LDL cholesterol levels. What is/are the dependent variable(s)?
a. regular fat cheese
b. LDL levels
c. reduced fat cheese
d. both a and b
e. both b and c
In the given study comparing the effects of regular-fat cheese to reduced-fat cheese on LDL cholesterol levels, the dependent variable(s) refers to the outcome(s) that are being measured or observed. In this case, the dependent variable in this study is: b. LDL levels
The dependent variable is the variable that is measured or observed to assess the effect of the independent variable(s). In this case, the study is comparing the effects of regular-fat cheese and reduced-fat cheese on LDL cholesterol levels.
LDL cholesterol levels are the outcome being measured to determine the impact of the different types of cheese on cholesterol. Therefore, option b, LDL levels, is the dependent variable in this study. Options a (regular fat cheese) and c (reduced fat cheese) are not the dependent variables but rather the independent variables, as they are the different conditions being compared to assess their effect on LDL levels.
Option d (both a and b) and option e (both b and c) are incorrect because regular-fat cheese (option a) is an independent variable, not a dependent variable.
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3 math questions for 50 points.
According to the U.S. Geological Survey, there are over 300,000,000 cubic miles of water on the planet. How this number represented in scientific notation
0 3 x 108
0 3 x 10°
30 x 108
0 30 x 10
Answer:
3 x 10^8
Step-by-step explanation:
300,000,000 in scientific notation is 3 x 10^8 and because it’s 8 zeros
The number 300,000,000 represented in scientific notation will be 3 × 10⁸. Then the correct option is A.
What is Algebra?The analysis of mathematical representations is algebra, and the handling of those symbols is logic.
PEMDAS rule means the Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to solve the equation in a proper and correct manner.
According to the U.S. Geological Survey, there are over 300,000,000 cubic miles of water on the planet.
Convert the integer number into scientific notation. Then the number can be written as,
300,000,000 = 3 × 10⁸
The number 300,000,000 represented in scientific notation will be 3 × 10⁸. Then the correct option is A.
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I need help on number 6 and 7
Answer:
1. c=13
2. a=12
Step-by-step explanation:
We have to use the Pythagorean theorm
a^2+b^2=c^2
(5*5)+(12*12)=c^2
25+144=c^2
169=c^2
Now we have to square root 169 to find c
\(\sqrt{169}\)
c=13
For this one we have to do c^2-b^2=A^2
(15*15)-(9*9)
225-81=a^2
144=a^2
\(\sqrt{144}\)
a=12
Which test represents the best choice if you wanted to compare the average number of adjustments made by service representatives at five different locations in Texas
The one-way ANOVA test would be the best choice to compare the average number of adjustments made by service representatives at five different locations in Texas.
To compare the average number of adjustments made by service representatives at five different locations in Texas, the best choice of statistical test would be the one-way ANOVA (Analysis of Variance) test.
The one-way ANOVA test is used to compare the means of three or more independent groups to determine whether there is a statistically significant difference between them.
Five different groups (locations) that we want to compare.
The one-way ANOVA test allows us to test the null hypothesis that all the groups have the same population mean, against the alternative hypothesis that at least one group has a different population mean than the others.
If the p-value is less than the significance level (usually set at 0.05), we can reject the null hypothesis and conclude that there is a statistically significant difference between the means of the groups.
The one-way ANOVA test, we can determine whether there is a significant difference in the average number of adjustments made by service representatives across the five different locations in Texas.
If a significant difference is found, we can then conduct post-hoc tests to determine which specific locations have different means.
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Cal is measuring temperature changes in four substances over different time periods as part of a school project. Which data show a proportional relationship?
The substance that has a data that show a proportional relationship is substance C.
What is a Proportional Relationship?A proportional relationship can be defined by the equation y = mx, where m is the unit rate or constant of proportionality between the relationship of x and y.
Constant of proportionality is calculated as m = y/x.
If a data shows a proportional relationship, it means the ratio of y to x is the same for any pair of values in the table, which is the constant of proportionality.
Given the data in the table shown below for the four substances, the substance that show a proportional relationship is substance C, because:
10/2 = 15/3 = 25/5 = 40/8 = 5
Constant of proportionality of the data for substance C is: 5.
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someone help pleaseeeee
Answer: I think 1.2
Step-by-step explanation:
1.35
3. What was a major impact of the Neolithic Revolution? (1 point)
O Male family members became leaders.
An economic system based upon bartering developed.
O Food surpluses led to population growth.
OWarriors learned how to make weapons.
Answer: Food surpluses led to population growth.
Step-by-step explanation:
Food surpluses led to population growth.
Suppose 20 students delegates will attend the conference. Each school should be represented fairly in relation to it's population. How many should be selected in each school?
Answer:
To find out the number coming from each school, you need to use the proportion of the school's population out of the population of all three.
Total population = 618 + 378 + 204
= 1,200 students
North Middle school:
= 618/1,200 * 20
= 10 students
Central Middle School:
= 378 / 1,200 * 20
= 6 students
South Middle School:
= 204/1,200 * 20
= 4 students
10. Given that the areas of the two rectangles are equal, calculate the
value of x. What is the area of each rectangle?
Answer:
Hello! answer: x = 3
each rectangle = 48 Hope that helps!
If the height of one of the paintings was 24 inches what is the total length in inches of 2 inch wood that would be needed to make the frame
Using addition the new height of the painting would be 26 inches.
One of the four fundamental operations in mathematics is addition, along with subtraction, multiplication, and division.
The entire amount or sum of the two whole numbers is obtained by adding them.
The process of addition involves combining two or more numbers to determine their sum. Mathematicians utilize addition as their main arithmetic operation to determine the sum of two or more numbers. For instance, 7 + 7 equals 14.
The sum is the entire value, and the addends are the integers that are being added. In the example above, the sum is 10 and the addends are 6 and 4.
Using addition,
Total height of the painting with frame = 24 inches + 2 inches = 26 inches
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a major disadvantage of correlations is that they cannot make a(n) blank statement. multiple choice question.
A major disadvantage of correlations is that they cannot make a cause-and-effect statement.
What are correlations?Correlations are statistical measures that describe the size and direction of a relationship between variables.
Correlations are expressed as numbers. Correlations establish that relationships exist but do not explain if the change in one variable is caused by the change in another variable's value.
The disadvantages of correlations include:
There are no causes and effects.Results can find no inference.The strength of the relationship is not explained.There is the possibility of a confounding factor.Thus, a major disadvantage of correlations is that they cannot make a cause-and-effect statement.
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Which phrase represents this expression?
7 × 4 + 3
Responses
3 more than the product of 7 and 4
the product of 7 and the sum of 4 and 3
the product of 7 and the difference of 4 and 3
3 less than the product of 7 and 4
Answer:
The Answer is 49
Step-by-step explanation:
4+3 =7 and 7 x 7 = 49
hope this helps
Find The slope of the line between -3, 6 and negative -5, 9
Answer: The slope is -3/2.
Step-by-step explanation: To find the slope of a line with two given points, we can apply the formula y-y/x-x.
Evaluation
The two given points are (-3,6) and (-5,9). With that in mind, we can set up an instance of subtractions:
(9 - 6)/(-5 - -3)
= -3/2
Answer Recap:
The slope of the line is -3/2.
Feri invests some money.
The rate of interest for the first year is 2.5%.
At the end of the second year the overall percentage increase of Feri's investment is 6.6%.
Find the rate of interest for the second year.
The rate of interest for 2nd year is 4.1%
How to find the interest rate for the second yearFrom the given parameters;
Rate of interest for 1st year = 2.5
As we know the formula for Simple interest is given by
=> I = (PTR)/100
We will use this formula in the following problem
Let 100 be Feri's investment
At the Rate of interest of 2.5
Interest on 100 = [(100(1)(2.5)]/100 = 2.5
Total amount at end of 1st year = 100 + 2.5 = 102.5
Let x be the rate of interest for 2nd year
At the rate of interest of x
interest on 100 = [(100(1)(x)]/100 = x
Total amount at end of 2st year = 102.5 + x
Given that, at end of the 2 years, the rate of interest becomes 6.6%
Interest on 100 at the rate of 6.6%
=> [(100(1)(6.6)]/100 = 6.6
=> total amount = 100 + 6.6 = 106.6
As we know in both cases, the amount must be equal
=> 102.5 + x = 106.6
=> x = 4.1
Therefore, The rate of interest for 2nd year = 4.1
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