Mathematics High School

i can not seem to figure out this problem. help!!

Answers

Answer 1

X=5 is the answer because

Related Questions

come on u guys got this the last 2

Answers

Answer:

idk

Step-by-step explanation:

Answer:

HEy

Step-by-step explanation:

a = 7cm, b = 14cm
Q1. Calculate the area and perimeter of the following ring where
(i)
Area of Ring:
(ii)
Perimeter of Ring:

Answers

Answer:

A =7 B=14

Step-by-step explanation:

AREA OF RING

PERIMETER OF RING

Given that z is a standard normal random variable, compute the following probabilities. Round your answers to 4 decimal places. a. P(0≤z≤0.65) b. P(−1.44≤z≤0) c. P(z>0.31) d. P(z≥−0.35) e. P(z<2.11) f. P(z≤−0.67)

Answers

The required probabilities are 0.2559, 0.4251, 0.3790, 0.6371, 0.9826, and 0.2514 respectively.

a. To compute P(0 ≤ z ≤ 0.65), we need to find the area under the standard normal curve between 0 and 0.65. Using a standard normal table or a calculator, we find that P(0 ≤ z ≤ 0.65) is approximately 0.2559.

b. To compute P(-1.44 ≤ z ≤ 0), we need to find the area under the standard normal curve between -1.44 and 0. Using a standard normal table or a calculator, we find that P(-1.44 ≤ z ≤ 0) is approximately 0.4251.

c. To compute P(z > 0.31), we need to find the area under the standard normal curve to the right of 0.31. Using a standard normal table or a calculator, we find that P(z > 0.31) is approximately 0.3790.

d. To compute P(z ≥ -0.35), we need to find the area under the standard normal curve to the right of -0.35. Since the standard normal distribution is symmetric, we can also find the area to the left of -0.35 and subtract it from 1. Using a standard normal table or a calculator, we find that P(z ≥ -0.35) is approximately 0.6371.

e. To compute P(z < 2.11), we need to find the area under the standard normal curve to the left of 2.11. Using a standard normal table or a calculator, we find that P(z < 2.11) is approximately 0.9826.

f. To compute P(z ≤ -0.67), we need to find the area under the standard normal curve to the left of -0.67. Using a standard normal table or a calculator, we find that P(z ≤ -0.67) is approximately 0.2514.

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graph x < -4 as an inequality.

Answers

Answer:

Graph{x<-4[10,10-5,5]}

The line will be a dashed line because the inequality operator does not contains an" or equal to"clouse

select all that apply. the study did not randomly assign treatments the difference of 0.4 miles per week could be too small to attribute to the tummeric and might just be due to random chance. the study was not large enough this is an experiment, thus it does show causation the study is observational and lacks control of too many lurking variables the study should be replciated with other populations

Answers

The statement that is true is "the study is observational and lacks control of too many lurking variables" and "the study should be replicated with other populations."Here are the reasons why:

The study is observational and lacks control of too many lurking variables:

This statement is true since the study was done with people who used turmeric in the meals they consume. There are a lot of things that could affect the difference in mileage walked by the turmeric users compared to those who do not consume it. For instance, the intensity of exercise, lifestyle, and overall diet could have been contributing factors. Thus, there is no guarantee that turmeric is solely responsible for the difference in miles walked.

The study should be replicated with other populations:

This statement is true since the study was carried out with a small sample size and in one geographic location. This means that there is a possibility that the results were just unique to that region. Replicating the study in a different location would help to establish the generalizability of the results and whether or not they are consistent across populations.

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52÷25
What is the answer :)

Answers

Answer:

2.08 this is answer

which choice is equvalent to the expression below 5^9.96
a. 5^9 • 5^96/10 • 5^9/100
b. 5^9•5^9/10•5^6/100•5^9/1000
c. 5^9+5^9/10+6^6/100
d. 5^9+9/10+9/10+6/1000

Answers

Answer:

Step-by-step explanation:

5^9•5^9/10•5^6/100•5^9/1000 = 5^(9+0.9+0.06+0.009) = 5^9.969

B !! I’m going by what the above answer say !

An accountant used to charge $50 per hour, but recently decided to charge $62 per hour. What was the percent of increase in the billing rate?

Answers

Answer:

24%

Step-by-step explanation:

we subtract to see how much it increased

62-50=12

Now divide 12 by 50 to get percent

12/50

0.24

0.24x100

24%

Hopes this helps please mark brainliest

Answer the following question from the picture:

Answers

Answer:

x°= 67°. it's from 180-130 then it's added with 63 then again substrated from 180.

Y°= 63°. y° same as 63° below.

z°= 32°. 85 is added with y° which is 148 and it's substrate from 180 which is 32°.

please help me on this will give you brainliest

Answers

Answer:

Step-by-step explanation:

m<2= 69 degrees

m<1 and m<3 = 21 degrees

Jeanette skips 4 feet in 5 seconds. At that rate, how long will it take her to skip 24 feet?

Answers

Answer:

60 seconds

Step-by-step explanation:

Answer:

30 seconds

Step-by-step explanation:

4 x 6 = 24

Multiply 5 by 6

You get 30

1. LMNO and PQRS are similar. List all pairs of congruent angles and write the statement of proportionality for the figures.

Answers

All the pairs of congruent angles are given below:

<L = <P<M = <R<N = <R<O = <S<M = <Q = MN/QR = NO/RS = OL/SP

The corresponding sides are equal, the corresponding sides are proportional.

What are Congruent Angles?

Angles that are identical to one another are referred to as congruent angles.

As a result, these angles have the same measure as one another. The congruence of angles is unaffected by the type of angle, therefore they can be acute, obtuse, exterior, or interior angles.

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ill give the right answer brainliest!

Answers

Answer:

C=84, D=80,b=99 and a=81

Step-by-step explanation:

In a quadrilateral, it's opposite measurements has to be equal to 180 degrees. So, for example if one side is 100 then the opposite side has to be equal to 80 so that if you add them there sum would be 180 degree.

Sorry, but I am not sure about a but you can try 81 degrees if you want. Hope this helps you!

How do you solve equations using Substitution.

Answers

Substitution is one of the methods for solving linear equations. It is a good choice if there is a variable with a coefficient of 1. This method involves solving one of the equations for a variable and then substituting that expression into another equation to solve for another variable. This will produce a single equation with one variable, which can then be solved algebraically.

Find the next two terms in this
sequence.
1, 2, 6, 24, 120, [?],[]

Answers

1x1=1

1x2=2

2x3=6

6x4=24

24x5=120

120x6=720

720x7=5040

the answer is 720 and 5040

Sue read 12 more than twice as many pages is tom did last week if sue read 90 pages how many did tom read

Answers

Answer: 39 pages

Step-by-step explanation:

x = the amount of pages Tom read

$2x+12=90\\2x=78\\\frac{2x}{2}=\frac{78}{2}\\x=39$

If Sue read 90 pages, which is 12 more than twice the amount, subtract 12 from 90, then divide the result by 2, boom, you got your answer. Which should be 39

Write an equation in slope-intercept form for the line.
(-7,2) and (5,8)

Answers

The equation in slope-intercept form for the line that passes from the points (-7,2) and (5,8) is y = (1/2)x -3/2.

We know that, the slope intercept form is given by:-

y = mx + b

Where,

(x,y) is the ordered pair of every point on the line

m is the slope of the line

b is the y-intercept of the line

We know that, slope = (8-2)/(5-(-7)) = 6/12 = 1/2

Putting (-7,2) in (x,y) and m = 1/2 in the slope intercept form, we get,

2 = (1/2)(-7) + b

2 = -7/2 + b

b = -3/2

Hence, the slope intercept form of the line is y = (1/2)x -3/2.

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Which of the following could be the equation of the graph shown below?
Check all that apply.
A. y = -4x+ 2
B. 3x + 2y = 6
c. 2x - y = 7
OD y = 5

Answers

Answer:

A. y = -4x + 2 and B. 2x + 2y = 6

Step-by-step explanation:

A. y = -4x + 2 This is correct since the displayed picture shows a negative slope. Therefore, m is negative

B. 2x + 2y = 6 This is converted to y = -x +3 So, it is also correct

C. 2x - y = 7 This is converted to y = 2x-7 So, it is not correct

D. y = 5 Y value would have to always be at 5 So, it is not correct

You are given that cos(A)=−4/5, with A in Quadrant II, and sin(B)=−24/25, with B in Quadrant III. Find sin(A+B). Give your answer as a fraction.

Answers

The value of sin(A+B) is 32/25. We can use the trigonometric identities to find the value of sin(A+B). First, we need to determine the value of cos(B) using the given information about sin(B) and the quadrant of angle B.

Since sin(B) is negative and B is in Quadrant III, we can deduce that cos(B) must be positive. Using the Pythagorean identity sin^2(B) + cos^2(B) = 1, we can find cos(B) as follows:

sin^2(B) + cos^2(B) = 1

(-24/25)^2 + cos^2(B) = 1

576/625 + cos^2(B) = 1

cos^2(B) = 1 - 576/625

cos^2(B) = 49/625

cos(B) = √(49/625) = 7/25

Next, we can use the sum-to-product identity for sine:

sin(A + B) = sin(A) * cos(B) + cos(A) * sin(B)

Substituting the given values:

sin(A + B) = (−4/5) * (7/25) + (−24/25) * (−4/5)

sin(A + B) = −28/125 + 96/125

sin(A + B) = 68/125

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On a coordinate plane, an absolute value graph has a vertex at (1, 3). Which equation represents the function graphed on the coordinate plane? g(x) = |x + 1| + 3 g(x) = |x + 3| – 1 g(x) = |x – 1| + 3 g(x) = |x + 3| + 1

Answers

Answer: g(x)= |x-1| + 3

Step-by-step explanation: the |x-1| means you need to move the vertex to the right by one and the +3 means you must move the vertex up by three

The equation that represents the function on a coordinate plane is $g(x) =|x - 1| + 3$

The vertex is given as:

$(h,k) = (1,3)$

An absolute function is represented as:

$y = a|x - h| + k$

Substitute 1 for h, and 3 for k

$y = a|x - 1| + 3$

Assume that the value of (a) is 1

$y = 1 \times |x - 1| + 3$

So, we have:

$y =|x - 1| + 3$

Represent as a function

$g(x) =|x - 1| + 3$

Hence, the equation that represents the function on a coordinate plane is $g(x) =|x - 1| + 3$

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C. Solve for the missing measurements.
m<AZL
m AL

Answers

AZL is the correct answer

Lucy took a taxi from her house to the airport. The taxi company charged a pick-up fee of $3.80 plus $3 per mile. The total fare was $39.80, not including the tip. Write and solve an equation which can be used to determine xx, the number of miles in the taxi ride.

Answers

If you do 39.80/ 3 it would give you 13.2667miles and since the tip was not added that’s when you don’t do anything with that number and 3 because every mile you pay 3$

Answer:

Step-by-step explanation:

39.80/ 3 =13.2667

How is the pattern changing to get from one term to the next ? -48, -44, -40, -36, -32, . . .

Answers

The given pattern is

$-48,-44,-40,-36,-32$

We will find the difference between the consecutive terms

$\begin{gathered} -44-(-48)=-44+48=4 \\ -40-(-44)=-40+44=4 \\ -36-(-40)=-36+40=4 \\ -32-(-36)=-32+36=4 \end{gathered}$

Then the pattern is increasing by 4 units

The pattern is changing by adding 4

sean uses a candle mold to make candles that are perfect cones. the diameter of the cone is 6 inches with a height that is half as long as the diameter. how much wax is needed to make a candle?

Answers

28.26 inches of wax is needed to make a candle.

What is the volume of a cylinder?

The density of a cylinder is determined by its volume, which represents how much material may be immersed in it or carried inside of it. The formula πr2h where r is the radius of the circular base and h is the height of the cylinder determines the volume of a cylinder.

Here, we have

Given: Sean uses a candle mold to make candles that are perfect cones. the diameter of the cone is 6 inches with a height that is half as long as the diameter.

The volume of cylinder = π · r² · h

r = 3 inches

h = 3 inches

= π (3)² · 3

= 27π

Volume of sphere = 4/3πr³

= 4/3π(3)³

= 36π

Total volume = 36π - 27π

= 9π = 9×3.14 = 28.26

Hence, 28.26 inches of wax is needed to make a candle.

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r/-8 = 9.4 (equation)

Answers

Answer:

r = -75.2

Step-by-step explanation:

r/-8 = 9.4. r = -75.2

Answer:

-75.2

Step-by-step explanation:

r/-8 = 9.4

r = 9.4 . -8

r = -75.2

Nancy wants to win the "Jarful of Jelly Beans" guessing game at the Roseville Spring Carnival. She needs to guess the correct number of jelly beans to win the entire jar. Nancy thinks there are more than 300 jelly beans in the jar. Let j represent the number of jelly beans that Nancy might guess are in the jar. Which inequality models the story? Graph the inequality that models the story. To draw a ray, plot an endpoint and select an arrow. Select an endpoint to change it from closed to open. Select the middle of the ray to delete it.

Answers

The inequality that models the question we have here is j > 300

How to find the inequality

The inequality that models the story is j > 300. This inequality represents the fact that Nancy needs to guess a number greater than 300 in order to win the game.

To graph this inequality, we would start by plotting the point (300,0) on the coordinate plane. Then, we would draw a line extending to the right of that point and add an arrow on the end to indicate that the solution includes all numbers greater than 300.

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Find the measure of the third angle of a triangle given the measure of two angles are 63° and 22°

°85
°41
°5
°95

Answers

Answer:

The answer would be 95

Step-by-step explanation:

180=63+22+x

x=180-63-22

x=95°

Can someone help me with this Question.

Answers

The formula we need to use is given above. In this formula, we will substitute the desired values. Let's start.

$P=3W+D$

A) First, we can start by analyzing the first premise. The team has $8$ wins and $5$ losses. It earned $8 \times 3 = 24$ points in total from the matches it won and $1\times5=5$ points in total from the matches it drew. Therefore, it earned $24+5=29$ points.

B) After $39$ matches, the team managed to earn $54$ points in total. $12$ of these matches have ended in draws. Therefore, this team has won and lost a total of $39-12=27$ matches. This number includes all matches won and lost. In total, the team earned $12\times1=12$ points from the $12$ matches that ended in a draw.

$54-12=42$ points is the points earned after $27$ matches. By dividing $42$ by $3$ ( because $3$ points is the score obtained as a result of the matches won), we find how many matches team won. $42\div3=14$ matches won.

That leaves $27-14=13$ matches. These represent the matches team lost.

Finally, the answers are below.

$A)29$
$B)13$

Answer:

a) 29 points

b) 13 losses

Step-by-step explanation:

You want to know points and losses for different teams using the formula P = 3W +D, where W is wins and D is draws.

A 8 wins, 5 draws

The number of points the team has is ...

P = 3W +D

P = 3(8) +(5) = 29

The team has 29 points.

B 54 points

You want the number of losses the team has if it has 54 points and 12 draws after 39 games.

The number of wins is given by ...

P = 3W +D

54 = 3W +12

42 = 3W

14 = W

Then the number of losses is ...

W +D +L = 39

14 +12 +L = 39 . . . substitute the known values

L = 13 . . . . . . . . . . subtract 26 from both sides

The team lost 13 games.

Additional comment

In part B, we can solve for the number of losses directly, using 39-12-x as the number of wins when there are x losses. Simplifying 3W +D -P = 0 can make it easy to solve for x. (In the attached, we let the calculator do the simplification.)

<95141404393>

HELP PLEASE THIS IS TIMED

Answers

okay to area is length x width which mean something had to be multiplied to get 7 and since width is less than 6 it leaves us with only option of 1x7 therefore the length is 7 while the width is 1

please help find them
1 AB

2 BC

Answers

Answer:

AB ≈ 15.7 cm, BC ≈ 18.7 cm

Step-by-step explanation:

(1)

Using the Cosine rule in Δ ABD

AB² = 12.4² + 16.5² - (2 × 12.4 × 16.5 × cos64° )

= 153.76 + 272.25 - (409.2 cos64° )

= 426.01 - 179.38

= 246.63 ( take the square root of both sides )

AB = $\sqrt{246.63}$ ≈ 15.7 cm ( to 1 dec. place )

(2)

Calculate ∠ BCD in Δ BCD

∠ BCD = 180° - (53 + 95)° ← angle sum in triangle

∠ BCD = 180° - 148° = 32°

Using the Sine rule in Δ BCD

$\frac{BC}{sin53}$ = $\frac{BD}{sin32}$ = $\frac{12.4}{sin32}$ ( cross- multiply )

BC × sin32° = 12.4 × sin53° ( divide both sides by sin32° )

BC = $\frac{12.4sin53}{sin32}$ ≈ 18.7 cm ( to 1 dec. place )

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