What is the answer to this (in the picture above)

20-13=7

so i think the answer would be m 13-20?

Answer:

x^2+7x +49/4 and (x+7/2)^2

x^2+bx +b²/4 and  (x+b/2)^2

Step-by-step explanation:

Given the expression

x^2+7x+c

We need to find the constant that completes the expression

Take the half of the cpeffiecient of x = 7/2

Taking the square of the result

Square of the result  = (7/2)^2

Hence c = (7/2)^2

The expression becomes;

x^2 + 7x + (7/2)^2

= x^2+7x +49/4

= (x+7/2)^2

For x^2+bx+d

We need to find the constant that completes the expression

Take the half of the cpeffiecient of x = b/2

Taking the square of the result

Square of the result  = (b/2)^2

Hence d = (b/2)^2

The expression becomes;

x^2 + bx + (b/2)^2

= x^2+bx +b²/4

= (x+b/2)^2

Answer:

X=27.19

Step-by-step explanation:

Sin54=22/x

X=22/sin54=27.19

Answer:

Length: 25

Width: 9

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

Answer:

see below :)

Step-by-step explanation:

answer: 1

the equation would be written like so: 5n+6=11

5(1) = 5

5+6 = 11

n=1

Answer:

0.2776 = 27.76% probability that fewer than 40% of the customers in the sample purchased the service contract.

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.

Central Limit Theorem

The Central Limit Theorem establishes 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]

45% of these customers also purchased the extended service contract.

This means that [tex]p = 0.45[/tex]

Sample of 35

This means that [tex]n = 35[/tex]

Mean and standard deviation:

[tex]\mu = 0.45[/tex]

[tex]s = \sqrt{\frac{0.45*0.55}{35}} = 0.0841[/tex]

What is the probability that fewer than 40% of the customers in the sample purchased the service contract?

This is the p-value of Z when X = 0.4. So

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

By the Central Limit Theorem

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

[tex]Z = \frac{0.4 - 0.45}{0.0841}[/tex]

[tex]Z = -0.59[/tex]

[tex]Z = -0.59[/tex] has a p-value of 0.2776

0.2776 = 27.76% probability that fewer than 40% of the customers in the sample purchased the service contract.

Answer:

Plug your values into the equation A=1/2bh and do the math. First multiply the base (b) by 1/2, then divide the area (A) by the product. The resulting value will be the height of your triangle!

Step-by-step explanation:

Step-by-step explanation:first you do just something

Answer:

3,800x(14)

Step-by-step explanation:

Answer:

The terminal point would be (1,0)

Step-by-step explanation:

Recall that in a unit circle, x° is located at the point (cosx°,sinx°) therefore the terminal point would be (cos(360°),sin(360°)) -> (1,0)

In a unit circle, it is given that 0 = 360°. The terminal point would be equal to (1,0).

The circle unit terminal Points in the unit circle to locate the terminal point, begin with (1,0).

In a unit circle, x° is located at the point (cosx°,sinx°)

In a unit circle, 0 = 360°.

therefore the terminal point would be

(cos(360°),sin(360°)) -> (1,0)

Learn more about  terminal points;

https://brainly.com/question/3988149

#SPJ2

Answer:

1. 50

2. 10

3. 75%

Step-by-step explanation:

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

The vertex is the extreme point of the curve. It lies on the vertical line that is the axis of symmetry.

The x-intercepts are where the graph crosses the x-axis. (They are symmetrically located about the axis of symmetry.)

The y-intercept is where the graph crosses the y-axis.

Answer:

10y=27+7

10y=34

y=34/10

y=3.4

Step-by-step explanation:

Firstly 7 is added to 27

Then adding 7 and 27

Dividing 34 by 10

Answer:

The answer is C

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

Answer:

hope it helps.

stay safe healthy and happy.

Answer:

90

Step-by-step explanation:

[tex] {3}^{4} + 9[/tex]

[tex](3 \times 3 \times 3 \times 3) + 9[/tex]

[tex]81 + 9[/tex]

[tex]90[/tex]

Answer:

90

Step-by-step explanation:

Answer:

-4/5 and 7/15

Step-by-step explanation:

the opposite of a number is a number that is equal length from 0 on a number line. So the opposite of 4/5 is -4/5 and the opposite of -7/15 is 7/15

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hope it helps

Answer:

________________________________

________________________________

igs those are parallel lines LOL

The values for the first part is..25 like choc...25 do not like choc..25 for the 3rd and yes..25 for 4th

Part b...zero percent..every 1 liked on or the other

Part c..it's equal for like choc..and same like cheese..

Answer:

205.75

Step-by-step explanation:

first, separate the floor into 3 different rectangles to calculate the area and then add them together.

area of rec=L*B

rec 1: 11.5*8=92

rec 2: (12.5-5)*(18.5-8-7)=26.25

rec 3:7*12.5=87.5

Then:

92+26.25+87.5=205.75

Answer: 3x-27

Step-by-step explanation:

Answer:

3x-21

Step-by-step explanation:

3(x-9)+6

3x-27+6

3x-21

Answer:

5.6 yards

Step-by-step explanation:

1/3 of 17 is 5.6

Answer: He used 5.66666667 yards of fabric! Yw! :)