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Mashcka [7]
3 years ago
9

Divide using long division. Check your answer.

Mathematics
1 answer:
Black_prince [1.1K]3 years ago
4 0

Answer:

x = 4

Step-by-step explanation:

(5x2 - 2x + 1) = (x - 1)

Simplify by multiplying 5 and 2.

(10 - 2x + 1) = (x - 1)

Combine like terms. Remove parentheses.

11 - 2x = x - 1

Cancel out - 2x to get the variable on one side.

- 2x + 2x = 0    x + 2x = 3x

11 = 3x - 1

Do the same with the 1.

12 = 3x

Divide.

x = 4

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A gumball machine contains 2323 green gumballs, 5252 red gumballs, 3434 blue gumballs, 6161 yellow gumballs, and 3030 pink gumba
OleMash [197]
If you add all the gumballs together you get a total of 20200 gumballs now you just divide 5252 by the total number of 20200 to get the percent of 26% giving us the answer to what the percent of red there is in this container

(add all the number, divide the total number of reds by the total number of gumballs (5252 divided by 20200) which will give you the percent of red gumballs (26%)
5 0
3 years ago
How does the graph of g(x)=x+4 compares with the graph of the parent function, f(x)=x?
irakobra [83]

The graph of g(x) is shifted 4 units up ⇒ answer a

Step-by-step explanation:

Let us revise the translation

  • If the function f(x) translated horizontally to the right by h units, then its image is g(x) = f(x - h)  
  • If the function f(x) translated horizontally to the left by h units, then its image is g(x) = f(x + h)  
  • If the function f(x) translated vertically up by k units, then its image is g(x) = f(x) + k  
  • If the function f(x) translated vertically down by k units, then its image is g(x) = f(x) - k  

∵ The parent function f(x) = x

∵ g (x) = x + 4

- Substitute x in g(x) by f(x)

∴ g(x) = f(x) + 4

- g(x) is f(x) add by 4

- by using the rule of translation above

∵ g(x) = f(x) + k

∵ k = 4

∴ g(x) is the image of f(x) after translation 4 units up

∴ The graph of g(x) is 4 units above the graph of f(x)

The graph of g(x) is shifted 4 units up

Learn more:

You can learn more about translation in brainly.com/question/2451812

#LearnwithBrainly

4 0
3 years ago
What is the scale factor of dilation? (1 point)
dusya [7]

Answer:

On a coordinate plane, triangle A B C has points (4, 4), (7, 8), (10, 4). ... Hence, the scale factor is 2 and one-half( ).

Step-by-step explanation:

The center of dilation is a fixed point in the plane. If the scale factor is greater than 1, the image is an enlargement (a stretch). If the scale factor is between 0 and 1, the image is a reduction (a shrink). If the scale factor is 1, the figure and the image are congruent.

6 0
3 years ago
A teacher gathered data about the number of hours her students spent studying for a test and their resulting test grades. She fo
In-s [12.5K]

Answer:

A. The data set would have a linear association.

C. The data set would have a positive correlation.

E. Every student earns 16 more points for each additional hour they study.

F. Students that study more tend to earn better grades on the test.

Step-by-step explanation:

Since in the question it is mentioned that the teacher obtained data with regard to the number of hours that students spent for their test and on their results. She found that on an average for each 30 minutes studied, the graded would rise by 8 points

Now this kind of relationship represents the linear association, positive correlation and study more earn better

Therefore the above three statements are true

5 0
3 years ago
Suppose ACT Reading scores are normally distributed with a mean of 21.4 and a standard deviation of 5.9. A university plans to a
Yakvenalex [24]

Answer:

29.2

Step-by-step explanation:

Mean = 21.4

Standard deviation = 5.9%

The minimum score required for the scholarship which is the scores of the top 9% is calculated using the Z - Score Formula.

The Z- score formula is given as:

z = x - μ /σ

Z score ( z) is determined by checking the z score percentile of the normal distribution

In the question we are told that it is the students who scores are in the top 9%

The top 9% is determined by finding the z score of the 91st percentile on the normal distribution

z score of the 91st percentile = 1.341

Using the formula

z = x - μ /σ

Where

z = z score of the 91st percentile = 1.341

μ = mean = 21.4

σ = Standard deviation = 5.9

1.341= x - 21.4 / 5.9

Cross multiply

1.341 × 5.9 = x - 21.4

7.7526 = x -21.4

x = 7.7526 + 21.4

x = 29.1526

The 91st percentile is at the score of 29.1526.

We were asked in the question to round up to the nearest tenth.

Approximately, = 29.2

The minimum score required for the scholarship to the nearest tenth is 29.2 .

6 0
3 years ago
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