What is the simplified form of the expression -(2a + 5s) + (10a - 3s)?

Select one:
a. 8a - 25s
b. 8a - 35s
c. 12a + 25s
d. 12a - 35s

Answer:

-10

Step-by-step explanation:

h(-4) = 2(-4)+7 which equals -1

g(h(-4)) = -1²-9 which equals -10

Answer:

b=-3

Step-by-step explanation:

-11b+7=40

-7         -7

-11b=40-7

-11b=33

-11b/-11=33/-11

b=-3

CHECK:

-11b+7 = 40

Substitute -3 for b:

-11(-3)+7=40

Solve:

33+7=40

40=40

Therefore b does in fact equal -3.

I hope this helped you.

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Have a great day!!!!!!!!!

The formula for calculating the required sample size to estimate the population mean with a 90% confidence level is given by:

n = ((z_(α/2)×σ) / E)²Here, z_(α/2) is the z-value for the given level of confidence (90% in this case), σ is the population standard deviation (6.8 in this case), and E is the maximum error we can tolerate (0.02 in this case).

Substituting the given values in the formula, we get:

n = ((z_(α/2)×σ) / E)²n = ((1.645×6.8) / 0.02)²n = 1910.96

Rounding up to the nearest whole number, we get the required sample size to be 1911.

Therefore, a sample size of 1911 is required to estimate the population mean with a 90% confidence level and an error of less than 0.02.

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The percentage of people who filed their taxes during the week of tax day is 10%

I can estimate how many people filed their taxes during the week of April 15th using a percentage of 100 is a/b * 100.

A percentage is a portion of a sum divided into 100 equal parts.

Calculate (Number of persons who submitted their taxes during the week of April 15th / total people who filed their taxes that year) times 100 to get the percentage of people who filed during that week.

Let :

a represents the total number of taxpayers during the week of April 15th.

b represents the total number of taxpayers for that year.

The original equation is reduced to

a/b× 100

As an illustration, 100 individuals submitted their taxes the week of April 15th and

Let's say that year, 1000 persons filed their taxes.

= 100/1000 = 10%

Thus, 10% of Americans submitted their taxes during the week of April 15th, or 100 out of 1,000.

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Answer:

-82

Step-by-step explanation:

84/21=4

-25x4=-100

-3x-6=18

-100+18=-82

z-value is -1.9599

To find the value z such that the area to the left of z under the standard normal curve is 0.025, you can use the qnorm() function in R as follows:

The output will be the z-value you are looking for. To round your answer to 4 digits after the decimal point, you can use the round() function in R:

The output will be the rounded z-value, which should be approximately -1.9599.

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When drawing cabinets obliquely, we start with the front face of an object and draw the depths or sides at 45 degrees.

The object is depicted as having a cabinet oblique with half height and full depth. In a cabinet oblique drawing, the object's height is depicted at half scale while its depth is represented at full scale.

In doing so, a foreshortening effect is produced, giving the object a deeper than tall appearance. The drawing is normally displayed at a 45-degree angle, with the breadth of the object drawn to full scale.

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In this case, the experimental probability is D. 0.860

First, note that Experimental probability, also known as Empirical probability, is founded on real experiments and adequate documentation of events.

In the table we can see that he rolled the cube 1000 times, and he recorded that 140 of those times he rolled a 5.

Then, the probability of rolling a 5 will be equal to:

P1 = 140/1000 = 0.14

Now, the probabilty of NOT rolling a 5, is equal to the rest of the probabilities, this is:

P2 = 1 - 0.14 = 0.86

then the correct option is D

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Full Question:

Although part of your question is missing, you might be referring to this full question:

Jimmy rolls a number cube multiple times and records the data in the table above. At the end of the experiment, he counts that he had rolled 140 fives. Find the experimental probability of not rolling a five, based in Jimmy’s experiment. Round the answer to the nearest thousandth.

A. 0.140

B. 0.167

C. 0.667

D. 0.860

Answer:

y= -1/3x-2

Step-by-step explanation:

comment if u need a explaination

To find the interest of Chris Owens’ credit union loan of $3,290 at 10(1/3)% interest for 110 days, we use the simple interest formula as follows:

Simple Interest = (P × R × T)/100Where:P = Principal or amount borrowedR = Rate of interest per annumT = Time in years or fraction of a year110 days ÷ 360 days = 0.3056 (time as a fraction of a year)The rate of interest, 10(1/3)% is equal to 10 + (1/3) percent = 10.33% per annum in decimal form = 0.1033Substituting the values we have into the formula,Simple Interest = (P × R × T)/100= (3,290 × 0.1033 × 0.3056)/100= $100.68 (rounded to the nearest cent)

Therefore, the interest of Chris Owens’ credit union loan of $3,290 at 10(1/3)% interest for 110 days is $100.68.

A credit union loan is a type of personal loan that can be used for a variety of purposes. One of the most common reasons people take out credit union loans is to purchase big-ticket items like a new computer system. When you take out a loan, you must pay back the amount borrowed plus the interest charged by the lender. The interest rate is usually expressed as a percentage of the amount borrowed and is charged for a specific period of time known as the loan term. Simple interest is a method of calculating interest that is charged only on the principal amount borrowed.

It does not take into account the interest that has already been paid. Simple interest is calculated by multiplying the principal amount borrowed by the interest rate and the length of the loan term. The answer is more than 100 words.The interest of Chris Owens’ credit union loan of $3,290 at 10(1/3)% interest for 110 days is $100.68. Therefore, he would pay $3,290 + $100.68 = $3,390.68 in total to the credit union over the loan term. It is important to note that when rounding dollar amounts to the nearest cent, amounts that end in .50 or higher are rounded up to the next highest cent, while amounts that end in .49 or lower are rounded down to the next lowest cent. In this case, $100.6847 would be rounded up to $100.68. In conclusion, the interest charged on a loan can significantly increase the total amount that must be repaid, making it important for borrowers to understand how interest is calculated and the terms of their loan.

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Answer:

B'(-3, 2)

Explanation:

In the triangle, point B is at (3, 2).

We want to find the coordinates of B', the image of B when triangle ABC is reflected over the y-axis.

When a point (x,y) is reflected over the y-axis, the transformation rule is:

This means that the x-coordinate changes to the opposite sign while the y-coordinate stays the same.

Applying this rule, we have:

Thus, the coordinates of point B' after triangle ABC is reflected across the y-axis will be B'(-3, 2).

We want to find the value of x.

Since this is a right triangle, we can use trig functions.

We know the opposite side from 70 degrees and we want to find the adjacents side, so we will use tangent

tan 70 = opp side /adj side

tan 70 = 12 /x

x tan 70 = 12

x = 12 / tan 70

x=4.36764

Explanation:

AD = 15, DB = 12, AE = 10, and EC = 8

To determine if line BC is parallel to line DE, we will find the ratio of thier corresponding sides. if it is equal, they are parallelf

Answer:

B.

The equation you can use to find the area of a sphere when given radius is:

V = 4/3πr 3

Fitting 5 into the equation:

V = 4/3π5 3

V = 523.598776

Therefore, B is the correct answer.

Answer:

3. 7680

4. 18630

Step-by-step explanation:

3. solution:

200 * 38.4 = 200 *38 + 200 * 0.4

= 7600 +80

=7680

4. solution:

900 * 20.7 = 900 *20 + 900 * 0.7

= 18000 + 630

= 18630

Answer:

11

Step-by-step explanation:

2^10 + 2^10 = 2^x

1024 + 1024 = 2^x

2,048 = 2^x

x = 11

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Hi there!  

»»————-　★　————-««

I believe your answer is:  

\(x = 11\)

»»————-　★　————-««  

Here’s why:  

⸻⸻⸻⸻

\(\boxed{\text{Solving for 'x'...}}\\\\2^{10}+2^{10} = 2^x\\--------------\\\rightarrow 2^{10} = 1024\\\\\rightarrow 1024 + 1024 = 2^x\\\\\rightarrow 2048 = 2 ^x\\\\\rightarrow log(2^x)=log(2048)\\\\\rightarrow xlog(2)=log(2048)\\\\\rightarrow \frac{log(2)}{log(2)} =\frac{log(2048)}{log(2)}\\\\\rightarrow x = \frac{log(2048)}{log(2)}\\\\\rightarrow \boxed{x = 11}\)

⸻⸻⸻⸻

»»————-　★　————-««  

Hope this helps you. I apologize if it’s incorrect.  

Answer:

Step-by-step explanation:

RMJ = MPT = 90                     Perpendicular lines create right angles (90o)

PM = RJ                                   Given

TM = MJ                                   Definition of a midpoint

PT = MR                                   Two equal legs of a right triangle makes the third   side of each equal by a^2 + b^2 = c^2

ΔPTM = ΔJMR                               Side Side Side

There are other ways of doing this. This is one way.

Answer:

D

Step-by-step explanation:

D is not a function because:

There are 2 sets of pairs so there is no out.

* (3,-2)

* (5,-6)

(7,7) NO!

(8,8) NO!

A is the answer because if we want the unit rate we do

2/3÷2/3 and 15 1/5, we can turn 15 1/5 into a improper fraction first so 76/5 and we do 76/5 ÷2/3 which is equal to

76/5×3/2=114/5

114/5 simplifies into 24 4/5.

so Naomi can travel 24 4/5 gal per mile.

Hope this helps!

Hi there!

Before we get into translation or transformation of a graph. Let's understand how the graph of cube root of x looks like.

1. How does an original graph, or a graph without any translations look like?

2. Translations/Transformation of the graph.

3. Conclusion and Answer

I hope this helps! Let me know if you have any doubts regarding your question or my answer.

Answer:

L ≤ 65

Step-by-step explanation:

Less than or equal to 65 which means at the peak (most) it is 65 MPH :)

Therefore , the solution of the given problem of percentage comes out to be Lara consequently got 68 orange pins.

In statistics, "a%" refers to a statistic or metric that is expression as a percentage of 100. Additionally rare are the acronyms "pct," "pct," and "pc". However, the sign "%" is frequently used to represent it. The percentage of the overall amount is flat; there are no measurements. Percentages are truly numbers because their numerator almost always equals 100. To show that a number represents a percent, either a percent sign (%) as well the phrase "fraction" has to appear before the number.

Here,

Since the two categories encompass every pin, if 80% of the pins are orange, then 20% of the pins must be yellow. This information can be used to determine how many orange pins Lara actually got.

Let X represent the overall amount of orange pins Lara was given. Thus, we are aware of:

80 percent of the pegs are represented by

=>   X: X = 0.8 * 85

20% of all pins are yellow, making up all of the brooches.

=>   0.2 * 85 = yellow pegs

By multiplying both parts of the first equation by 10, we can make it simpler:

=>  10X = 8 * 85

=>  10X = 680

When we multiply both parts by 10, we get:

=> X = 68

Lara consequently got 68 orange pins.

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The relationship between a circumference of a circle and its diameter is the circumference is about 3.14 times greater than its diameter.

What is circumference?

A circle's perimeter is known as its circumference. It is the circumference of the circle as a whole.

The formula gives it

\(C = 2\pi r\)

where r is the radius of the circle.

Diameter is defined as the two times the radius

i.e. d = 2r ................. (1)

and the circumference of a circle is \(C = 2\pi r\) ................ (2)

From equations (1) and (2), we get

\(C = \pi d\)

where, \(\pi\) = 3.14

So, the required option is the circumference is about 3.14 times greater than its diameter.

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Question: In a sale, the price of a book is reduced by 25%. The price of the book in the sale is £12. Work out the original price of the book

Answer: £16

Step-by-step explanation:

To determine the original price of the book, we can use the fact that the sale price is 75% (100% - 25%) of the original price. Let's denote the original price as x.

75% of x = £12

To solve for x, we can set up the equation:

0.75x = £12

To isolate x, we divide both sides of the equation by 0.75:

x = £12 / 0.75

x = £16

Therefore, the original price of the book was £16.

The formula for multiplying two vectors is: (a b) x (a - b) = (a x a)b - (a x b)b = ab² - a²b.

In this case, (a b) x (a - b) = 3i - 7j - 2k x 3i + 7j + 2k = 9i² - 49j² - 4k².

The formula for the cross product of two vectors is (a b) × (a − b) = (a × a) − (a × b) − (b × a) + (b × b). Since the cross product of a vector with itself is zero, this simplifies to (a b) × (a − b) = − (a × b) − (b × a).

Now, we can substitute the given value of a×b into this formula:

(a b) × (a − b) = − (3i − 7j − 2k) − (3i − 7j − 2k)

Simplifying this further gives:

(a b) × (a − b) = −6i + 14j + 4k

Therefore, the cross product of (a b) and (a − b) is −6i + 14j + 4k.

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The correct steps that best describe the scientific method are:

The scientific method has five basic steps, plus one feedback step:

The scientific method is a systematic approach to scientific inquiry that involves a series of steps used to investigate, test, and understand natural phenomena

The process of the scientific method involves making conjectures (hypotheses), deriving predictions from them as logical consequences, and then carrying out experiments or empirical observations based on those predictions.

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The discount amount is $29. The sale price of the scooter is $116.

What is the percentage?

A percentage is a number or ratio that can be expressed as a fraction of 100 in mathematics. If we need to calculate the percentage of a number, divide it by the whole and multiply by 100. As a result, the percentage denotes a part per hundred. The term % refers to one hundred percent. The symbol "%" represents it.

Given that, the market price of a scooter is $145.

The discount on the scooter is 20%.

The discount amount is $145×20%

                                        = 145 × (20/100)

                                        = 145 × (1/5)

                                         = 29

The sale price is Marke price - discount

= $(145 - 29)

=$116

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