find the area of each trapezoid or kite

Answer:

The slope is -4.5

The slope means that Elijah's phone battery will decrease by 4.5 percent each hour.

Step-by-step explanation:

In the equation y = mx + b, m is the slope.

The coefficient in the equation B = 27 – 4.5t is -4.5. This means that -4.5 is the slope of the equation.

In the context of this problem, the slope will represent the percent that Elijah's phone battery will decrease per hour.

So, the slope means that Elijah's phone battery will decrease by 4.5 percent each hour.

Answer:

Yes, because the calls were each randomly assigned a greeting.

Step-by-step explanation:

It is given that Andrew who works at the call center of an insurance company, decided to conduct a small survey on how to greet the potential customers while calling.

For this, he uses his 500 subsequent calls and he chooses to greet his customers randomly as "Howdy" or "Hiya".

Since the selection bias is ruled out, the calls were randomly assigned for the greetings. Thus the greetings caused a difference in sales.

Answer:

Yes, because the calls were each randomly assigned a greeting

Step-by-step explanation:

Random assignment to treatment groups makes this study an experiment, so we can make causal conclusions.

Answer: 3x^2 - 7x - 6

Step-by-step explanation:

Answer:

3x^2-7x-6

Step-by-step explanation:

(3x+2)(x-3)

3x^2-9x+2x-6

3x^2-7x-6

Hope this helps.

Answer:

Step-by-step explanation:

Answer:

([tex](\frac{1}{2},\frac{1}{4} )[/tex]

Step-by-step explanation:

Answer:

We're plotting an ordered pair on the x (horizontal) axis and y (vertical) axis of the coordinate plane. Created by Sal Khan and Monterey Institute for Technology and Education.

Answer:

The 90% confidence interval for the population mean length of nails produced by the machine.

(2.91562, 3.04438)

Step-by-step explanation:

Step:1

Given that the size of the sample 'n' = 10

Given that the mean of the sample (x⁻) = 2.98

Given that the standard deviation of the sample (s) = 0.09

Degrees of freedom = n-1 = 10 -1 = 9

t₀.₁₀ = 2.2621

Step:2

The 90% confidence interval for the population mean length of nails produced by the machine.

[tex](x^{-} - t_{9 , 0.10} \frac{S}{\sqrt{n} } , x^{-} + t_{9,0.10} \frac{S}{\sqrt{n} } )[/tex]

[tex](2.98 - 2.2621(\frac{0.09}{\sqrt{10} } , 2.98 + 2.262 \frac{0.09}{\sqrt{10} } )[/tex]

(2.98 - 0.06438 , 2.98 + 0.06438)

(2.91562 , 3.04438)

Final answer:-

The 90% confidence interval for the population mean length of nails produced by the machine.

(2.91562, 3.04438)

Answer:

d = 126, z = 28

Step-by-step explanation:

The angle with the variable is diagonal from the 105 degree angle. In this case, that means that they are equivalent. So, 105+21 = 126. d = 126 :)

Answer:

1/17

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Step-by-step explanation:

Step 1: Define

Identify

17

To take the reciprocal of the number, we simply take its fraction form and flip it:

17 = 17/1

Flip

1/17

Answer:

Compare them ➗That's the answer

Answer:

On wat

Step-by-step explanation:

Answer: 2 Don't know

Step-by-step explanation:

Answer:

There is a rule on how we find prime numbers.

Step-by-step explanation:

A clear rule determines exactly what makes a prime: it's a whole number that can't be exactly divided by anything except 1 and itself. But there's no discernible pattern in the occurrence of the primes.That's because, after the number 5, there are only four possibilities — 1, 3, 7, and 9 — for prime last digits

Answer:

Julie is 16 years old and Molly is 21 years old.

Step-by-step explanation:

Given that Julie is 5 years younger than her sister, Molly, and the sum of their ages is 37, to determine how old is each sister the following calculation must be performed:

(37 - 5) / 2 = X

32/2 = X

16 = X

(16 + 5) + 16 = X

21 + 16 = X

37 = X

Therefore, Julie is 16 years old and Molly is 21 years old.

Answer:

3y

Step-by-step explanation:

Answer:

y intercept is 4

the equation is y= 3/4 + 4

Slope intercept equation y=mx+b

Answer:

The square root of 7 and the square root of 2

Step-by-step explanation:

Answer:

lisa would earn more money

Step-by-step explanation:

let say mary base price = x

mary per student price = y

x+15y = 90

x+8y = 62

7y = 28

y =4

x = 30

mary  will earn for 20 students = 30 + 20*4 = 110

lisa base money = 30/2= 15

lisa per student = 4*2=8

lisa earning for 20 students

= 15 + 20*8 = 175

lisa will earn more money

Answer:

The p-value of the test is 0.0207.

Step-by-step explanation:

Test of the claim that more than 60% of the people following a particular diet will experience increased energy (H1: p > 0.6).

The null hypothesis is:

[tex]H_0: p = 0.6[/tex]

The alternate hypothesis is:

[tex]H_1: p > 0.6[/tex]

The test statistic is:

[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]

In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, [tex]\sigma[/tex] is the standard deviation and n is the size of the sample.

0.6 is tested at the null hypothesis:

This means that [tex]\mu = 0.6, \sigma = \sqrt{0.6*0.4}[/tex]

Of 100 randomly selected subjects who followed the diet, 70 noticed an increase in their energy level.

This means that [tex]n = 100, X = \frac{70}{100} = 0.7[/tex]

Test statistic:

[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]

[tex]z = \frac{0.7 - 0.6}{\frac{\\sqrt{0.6*0.4}}{\sqrt{100}}}[/tex]

[tex]z = 2.04[/tex]

P-value of the test:

The p-value of the test is the probability of finding a sample proportion of at least 0.7, which is 1 subtracted by the p-value of z = 2.04.

Looking at the z-table, z = 2.04 has a p-value of 0.9793

1 - 0.9793 = 0.0207

The p-value of the test is 0.0207.

Answer:

98,000

and for the t it would be an equation-

4500y=t

y= years worked for a company

Step-by-step explanation:

it is 98000 because 4500*10 because 4500 more each year.

and the 4500y=t is 4500 times the of years he has worked there equals t, or his salary after the 4500 is added.

Answer:

139.5 mm

Step-by-step explanation:

The area of a geometric shape with all sides of equal length is:

A (1/2)nsr

n = the number of sides

s = the length of the sides

r = the length of the apothem

The apothem is the line going from the center point of the shape to the middle of one of the sides.

A = (1/2)(5)(9)(6.2)

A = (1/2)279

A = 139.5 mm

Answer: 24 years

Step-by-step explanation:

% • total = Answer

4.25% • $40,000 = Answer

.0425 • $40,000 = Answer

Answer = $1,700 per year

40,000 ÷ 1,700 = 23.5

23.5 rounded to the nearest year is 24

Answer:

B) $3060.00

Step-by-step explanation:

8.5% of 9,000 equals 765, then 765 multiplied by 4 equals 3060.

I think that it will take Margie 4 years to pay back the bank. And the interest rate that the bank charges is 8.5% per month.

I'm not sure if this is correct

Answer:

answer is $1920

Step-by-step explanation:

first of all u shoul find interest.so,

I=PTR/100

=$1600*5*4/100

=$32000/100

=$320

so interest is $3200.now,

Amount(A)=P+I

=$1600+$320

=$1920

so the total amount the person receives after 5 years at the rate of 4% is $1920.

Hope it helps u!!

Answer:

163.67 ( I )

Step-by-step explanation:

Answer:

84 feet

Step-by-step explanation:

If the perimeter is 36 feet, and all the sides are the same length, then all the sides are 9. if we increase the length by 3 feet and decrease the width  by 2 feet then we are left with 12 * 7 = 84

Answer:

Option (a) is correct.

For given values a = 1 , b = -3 , c = -5 the quadratic equation is  

Step-by-step explanation:

Given : a = 1 , b = -3 , c = -5

We have to write the quadratic equation having a = 1 , b = -3 , c = -5 and choose the correct option.

The standard form of quadratic equation is  , where a, b, c are constant integers.

Given : a = 1 , b = -3 , c = -5

Then Substitute, we get,

Thus, the obtained quadratic equation is same as option (a)

Thus, For given values a = 1 , b = -3 , c = -5 the quadratic equation is

The equation for which a-value 1, ab-value -3 and ac-value -5 is 0=-3x-5+x².

Quadratics can be defined as a polynomial equation of a second degree, which implies that it comprises a minimum of one term that is squared. It is also called quadratic equations.

Here, a-value = 1,

        ab-value =  -3

        ac-value = -5

a = 1, b = -3, and c = -5

General Equation,

ax² + bx + c = 0

1x² + (-3)x + (-5) = 0

x² -3x -5 = 0

Thus, the equation for which a-value 1, ab-value -3 and ac-value -5 is 0= -3x -5 + x².

Learn more about Quadratic Equation from:

https://brainly.com/question/1863222

#SPJ2

ans]=71

x-10=61

x=61+10

x=71

Answer:

The longer length is either 99, 33 or 11 inches

Step-by-step explanation:

Given

[tex]Area = 99[/tex]

Required

The length of the longer side

Area of a rectangle is:

[tex]Area = Length * Width[/tex]

List out all possible products that give 99 [Assume the dimension are whole numbers]

[tex]Length * Width = 99 * 1 = 99[/tex]

[tex]Length * Width = 33 * 3 = 99[/tex]

[tex]Length * Width = 11 * 9 = 99[/tex]

List out the longer factors

[tex]L = \{99, 33, 11\}[/tex]

Hence, the longer length is either 99, 33 or 11 inches

Answer:

Option C

Step-by-step explanation:

Given :-

Options :

We can check the options , as ,

[tex]:\implies[/tex] Option 1 : 10

[tex]:\implies[/tex] Option C : 4

Hence option C is not a solution .