write the expression as a trinomial

(x-2)(5+x)

A,B helps it help if you doubt used calculator

Answer:

Change in percent = 56.75 (Approx.)

Step-by-step explanation:

Given:

Score in first game = 37 points

Score in second game = 58 points

Find:

Change in percent

Computation:

Change in percent = [(Score in second game - Score in first game)/Score in first game]100

Change in percent = [(58-37)/37]100

Change in percent = [(21)/37]100

Change in percent = 56.75 (Approx.)

Answer:

10 i think

Step-by-step explanation:

theres 10 x's

Answer:

10?

Step-by-step explanation:

i just counted the x's

Answer:

Quotient → (9x³ - 5x² + 7)

Step-by-step explanation:

2x - 5)18x⁴- 45x³ - 10x² + 39x - 35(9x³- 5x²+ 7

          18x⁴- 45x³

                           -10x² + 39x

                           -10x³ + 25x

                                        14x - 35

                                        14x - 35

                                                 0

Therefore, quotient will be → (9x³ - 5x² + 7)

Answer:  0.63803681

Step-by-step explanation:

652/416 simplified= 163/10

then just divide bc its easier.

hope it helped :))

Answer:

0.63803680981

Step-by-step explanation:

First, you can see there is no way to divide 652 into 416. So, you need to add a decimal to 416. Then, you would multiply 652 by 6 and get 3912. You subtract 3912 by 4160 and get 248. Then, you add a 0 to that number. And then, you would keep repeating the steps. Decimal, multiply, subtract.

7x + 3 = 9x - 3 - 2x

7x - 9x + 2x = -3 - 3

0 = -6

equation doesn't have any solution

Answer:

C

Step-by-step explanation:

C

Answer:

Assistant manager  sal= $800

cook  sal = $400

server sal = 300

Step-by-step explanation:

lets say 3 people salaries are x, y  and z respectively

let x be the cook salary

cook salary = x

assistant manager sal = y = 2x

server sal = z = x - 100

putting in the equation total salary three together make = 1500

x+y+z = 1500

x+2x+(x-100) = 1500

4x -100 = 1500

4x = 1600

x = 400

y = 2x = 2x400 = 800

z = x - 100 = 400 - 100 = 300

Answer:

a) By the Central Limit, the sampling distribution of the sample proportion of American adults worried about global warming is approximately normal with mean 0.3 and standard deviation 0.0142.

b) 0.0002 = 0.02% probability that the sample proportion from a random sample of 1048 adults who are worried about global warming is above 35%.

c) Yes, as 35% already has a z-score above 2, which means that any value above 35%, including 40%, would be unusual.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

If the z-score is lower than -2 or greater than 2, the measure X is considered unusual.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]

30% of American adults were worried about global warming.

This means that [tex]p = 0.3[/tex]

(a) Describe the sampling distribution of the sample proportion of American adults worried about global warming for a random sample of 1048 American adults.

Sample of 1048 means that [tex]n = 1048[/tex]

The mean is [tex]\mu = p = 0.3[/tex]

The standard deviation is [tex]s = \sqrt{\frac{p(1-p)}{n}} = \sqrt{\frac{0.3*0.7}{1048}} = 0.0142[/tex]

By the Central Limit, the sampling distribution of the sample proportion of American adults worried about global warming is approximately normal with mean 0.3 and standard deviation 0.0142.

(b) (3 points) Compute the probability that the sample proportion from a random sample of 1048 adults who are worried about global warming is above 35%.

This is 1 subtracted by the pvalue of Z when X = 0.35. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

By the Central Limit Theorem

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{0.35 - 0.3}{0.0142}[/tex]

[tex]Z = 3.53[/tex]

[tex]Z = 3.53[/tex] has a pvalue of 0.9998

1 - 0.9998 = 0.0002

0.0002 = 0.02% probability that the sample proportion from a random sample of 1048 adults who are worried about global warming is above 35%.

(c) (2 points) Based on your answers above, do you think it would be unusual to get 40% of 1048 randomly selected American adults being worried about global warming

Yes, as 35% already has a z-score above 2, which means that any value above 35%, including 40%, would be unusual.

9514 1404 393

Answer:

  31 square inches

Step-by-step explanation:

You can divide the shape into pieces several ways. The total area will be the sum of the areas of the pieces.

If we draw a horizontal line across the figure 2 inches up from the bottom, the figure is divided into a triangle and two rectangles.

The triangle has a base of 8 -3-2 = 3 inches, and a height of 4 -2 = 2 inches. Its area is ...

  A = (1/2)(3 in)(2 in) = 3 in²

The rectangle below the line has a base of 8 inches and a height of 2 inches. Its area is ...

  A = bh = (8 in)(2 in) = 16 in²

The rectangle above the line has a base of 3 inches and a height of 4 inches. Its area is ...

  A = bh = (3 in)(4 in) = 12 in²

Then the total area of the figure is ...

  (3 + 16 + 12) in² = 31 in² . . . . the area of the figure

Answer:

Step-by-step explanation:

(-1)³·(-1)² = (-1)·(1) = -1

Alternatively,

(-1)³·(-1)² = (-1)³⁺² = (-1)⁵ = -1

Answer: I think 6 x 10^-4 has the greatest value.

Step-by-step explanation:

Answer: [tex]300[/tex] [tex]times[/tex]

Step-by-step explanation:

Answer:

Part A- 2 miles per hour

Part B- 37.5 hours

Answer:

Exact form: 5/2

Decimal form: 2.5

Mixed number form: 2 and 1/2

Step-by-step explanation:

when you divide a fraction you keep, change, flip

Equation: 5/8 ÷ 1/4

keep 5/8 the same

change the divide symbol into a multipulcation symbol

flip 1/4 the other way, so it's 4/1 (it's a whole number now)

then just multiply across

Equation now: 5/8 × 4/1

Answer:

100.763 (cm.²)

Step-by-step explanation:

1. the formula of the required area is:

[tex]A=\frac{1}{2} *side_1*side_2*sin45;[/tex]

2. according to  the formula above:

A=0.5*15*19/√2≈100.763

Answer:

The other equation could be: 6y = 4x - 18

Step-by-step explanation:

System with infinite number of solutions:

A linear system has an infinite number of solutions when one equation is a multiple of another.

One of the equations of the system is 3y = 2x - 9. Which could be the other equation?

A multiple of 3y = 2x - 9

Multiplying by 2, the other equation could be: 6y = 4x - 18

Answer:

B: y=2/3 x -3

Step-by-step explanation:

I got it right on Edge

Answer:

6250

Step-by-step explanation:

V= lwh /3 = 5·125·30 /3 = 6250

Answer:

The first one = add three matches to the right side(on horizontal, two that or on top and bottom vertically.)

Second: Start with 5, and keep adding 3 until 26. 5 + 3+3+3+3+3+3+3

Or (26-5)/3 = 21/3 = 7

7 additions are needed so 7+1 = 8

Third: I believe you can answer this with this info

Step-by-step explanation:

Answer:

10.5 i think

Step-by-step explanation:

Answer:

38 miles per Gallon of Gas and she paid $3.74 per gallon of Gas

Step-by-step explanation:

Answer 1 is =

miles ÷ gallons

= 456÷ 12

= 38 Miles

Answer 2 is =

total money spent ÷ number of gallons

= $44.88 ÷ 12

= $3.74

Answer:

-4°

Step-by-step explanation:

4 + 8 = 12

12 - 16 = -4

The temperature was -4 at 9pm

Answer:

linear pair, adjacent, supplementary is your answer ☺️☺️☺️

Answer:

Step-by-step explanation:

The answer is A

Answer:

A.

Step-by-step explanation:

Answer:

circle graph

Step-by-step explanation:

Answer:

The answer is circle graph

Step-by-step explanation: