Find the value of x.

Answer:

16.12 mi²

Step-by-step explanation:

The formula for the area of a trapezoid is A = 1/2h([tex]b_{1} +b_{2}[/tex]), where [tex]b_{1}[/tex] stands for base 1, and [tex]b_{2}[/tex] represents base 2. Plugging in the given values, we have A = 1/2(3.1)(8.3 + 2.1). Now we can solve.

------------------------------

A = 1/2(3.1)(8.3 + 2.1)

1/2(3.1)(10.4)

1.55(10.4)

= 16.12 mi²

hope this helps!

[tex]\textbf{3)}\\\\~~~~~3x^2\cdot 5 = 80\\\\\implies 15x^2 = 80\\\\\implies x^2 = \dfrac{80}{15}\\\\\implies x^2 = \dfrac{16}3\\\\\implies x = \pm\sqrt{\dfrac{16}3}\\\\\implies x = \pm \dfrac 4{\sqrt 3}\\\\\textbf{4)}\\\\~~~~~~(x-5)^2 = 81\\\\\implies x -5 =\pm\sqrt{81}\\\\\implies x -5 = \pm9\\\\\implies x = 5\pm9\\\\\implies x = -4,~ x = 14[/tex]

Answer:

C

Step-by-step explanation:

28% of 25900 gives you 7252 and it is asking approx. and that is 7200

Answer:

B) 25 / 8

Step-by-step explanation:

We know that pi = 3.14*, or "3 and a little bit more". 25/8=3.125 which is approximately pi.

Answer:

y=x-3

Step-by-step explanation:

Slope intercept form: y=mx+b

x-y=3

-y=-x+3

y=x-3

Answer:108

Step-by-step explanation:

Answer: 108 minions

Step-by-step explanation:

[tex] \large \sf \: ⇒ \: 7(x + 6) \\ \\ \large \sf⇒ \:distributing \: 7 \: with \: bracket \\ \\ \large \sf \: ⇒7x + 42[/tex]

[tex]\boxed{\rm{Option\:A\green{✓}}}[/tex]

▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂☘

Hope it helps !

The conclusion that can be drawn from the table is (c) There is not an association between type of pet and food preference because the row relative frequencies are similar for the dog and cat rows

A conditional relative frequency is simply a two-way table that shows the relationship between table entries

The table is given as:

                    Food preference

Dog        0.47      0.52    0.495

Cats         0.53      0.48    0.505

Total         1              1           1

The entries at rows 1 and 2 i.e. 0.47 and 0.52 & 0.53 and 0.48 are close.

This means that there is no association between them because of the closeness

Hence, the conclusion about the association is (c)

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Answer:

1350

Explanation:

27 x 50 = 1350

(Hope this helped!)

Answer:

[tex]1\frac{1}{3}[/tex] hours

Step-by-step explanation:

The first painter does [tex]\frac{1}{2}[/tex] (aka [tex]\frac{2}{4}[/tex]) the job in 1 hour.

The second painter does [tex]\frac{1}{4}[/tex] the job in 1 hour.

This means together they can do [tex]\frac{3}{4}[/tex] the job in 1 hour.

This means to do [tex]\frac{1}{4}[/tex] of the job they will need [tex]\frac{1}{3}[/tex] hours. (third of the work they do in an hour means they need a third of the time)

This means they need [tex]1\frac{1}{3}[/tex] hours to paint the room together.

Given that a ∇ b = 4, it doesn't matter what values you choose for a and b, the result of the ∇ operation is always 4.

So, unless your question is missing some additional details, we have

(4 ∇ 3) ∇ 6 = 4 ∇ 6 = 4

and

(7 ∇ 2) ∇ 5 = 4 ∇ 5 = 4

Natalie's age = n

Fred's age = f

n + f = 43

4n + f = 88

f = 43 - n

4n + (43 - n) = 88

3n + 43 = 88

3n = 45

n = 15

f = 43 - n

f = 43 - 15

f = 28

Natalie is 15

Fred is 28

Hope this helps!

Answer:

65/56

Step-by-step explanation:

secant is equal to hypotenuse over adjacent

Answer:

65/33

Step-by-step explanation:

Answer:

a) he sells them for $ 8 each. what was his % profit

Step-by-step explanation:

Answer:

She bought 10 apples and 10 bananas

Step-by-step explanation:10 apples - $1.50 each x 10 apples = $15.00

10 bananas - $1.25 each x 10 bananas = $12.50

15.00+12.50=$27.50

x+y=28.00

1.50x+1.25y=28

Answer:

B

Step-by-step explanation:

Answer:

No

Step-by-step explanation:

The tirangles are no exatly the same due to the fact that one is rotated.

This means they are similar NOT congruent

Answer:

1421/576

Step-by-step explanation:

Sum = - 13/8 + 5/12 = - 39/24 + 10/24 = - 29/24

Difference = - 13/8 - 5/12 = - 39/24 - 10/24 = - 49/24

Sum * Difference = (-29/24)*(-49/24) = 1421/576

Answer:

7 x 3 .

Step-by-step explanation:

Divide x x by 1 1 . Since g(f(x))=x g ( f ( x ) ) = x , f−1(x)=3√49x7 f - 1 ( x ) = 49 x 3 7 is the inverse of f(x)=7x3 f ( x )

The inverse function is y= (x-3)/7

An expression which defines the relationship between two variables (one independent and one dependent variable).

The independent variable is the variable being controlled in the problem, and the dependent variable is the variable that changes with the change of independent variable.

A function that undoes the original function is called the inverse function.

To find the inverse function of a given function,

In the problem,  

y=7x+3

To find the inverse

x = 7y + 3    ( interchanging the variables )

Now finding the value of y,

⇒ x - 3 = 7y

⇒ y = (x-3)/7

This is the inverse function.

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Answer:

1. 92 in²

2. 97.2 yds²

Step-by-step explanation:

1. area of a rectangle: b x h

b = 9.2

h = 10

9.2 x 10 = 92

2. area of paralellogram: b x h

b = 12

h = 8.1

12 x 8.1 = 97.2

Answer:

65% of it or 325 of the 500MI

Step-by-step explanation:

65% of solution is water. 65% of 500 total is 325.

[tex]\huge{\green}\fcolorbox{blue}{cyan}{\bf{\underline{\red{\color{red}Answer}}}} [/tex]

[tex] \mathbb\purple{GALLONS} [/tex]

Answer:

a) 3 to 4

b) 3 : 4

[tex]\sf \dfrac{girls }{boys} = \dfrac{3}{4}[/tex]

Notice that girls = 3, boys = 4

So, Ratio of girls to boys can be rewritten as 3 : 4 and 3 to 4

Fractions are usually represented in ratio like

So

here

The correct answer choice is; The experimental probability is less than the theoretical probability by more than 2%.

It follows from the task content that, upon evaluation;

The experimental probability upon evaluation = 4/48 = 1/12.

The theoretical probability upon evaluation = 1/8.

Consequently, it follows that the experimental probability is less than the theoretical probability by more than 2%.

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Answer:

The probability that a randomly selected resident owns a

✔ cat

, given that the person also owns a

✔ dog

, is equal to approximately

✔ 0.90

.

Step-by-step explanation:

Just did it on edge.

Next slide answer is:

The probability that a randomly selected resident owns a

✔ dog

, given that the person also owns a

✔ cat

, is equal to approximately

✔ 0.519

.

Answer:

D

Step-by-step explanation:

A triangle with sides 2, 4.5, and 6 is similar to a triangle with sides 4, 9, and 12.

[tex] \frac{4}{2} = \frac{9}{4.5} = \frac{12}{6} = 2[/tex]

Option - A) The skin fold test .

Step-by-step explanation:

Hi!

The purple triangle is the pre-image.

See those little quotation marks on the letters of the blue triangle?

When we say the name of the triangle, we would say triangle ABC prime, meaning it's the post image, because it's like a copy of the other one, hence the quotes.

Answer:

A. 4+5/2= 6,5 mean

Step-by-step explanation:

I don't get the second question. Sorry! But at least I tried to help part A.

Answer:

Part A Answer: 5 Part B Answer: 1.25

Step-by-step explanation:

Part A: I added all the numbers up to equal 40. 40 divided by the number of numbers given (8) equals 5.

Part B: I know the answer is 1.25 for sure but trying to figure out how to explain it!

Answer:

The sum of one-half and a number is more than eighteen.

The sum of one-half and a number is greater than eighteen.

The sum of one-half and a number is above eighteen.

Step-by-step explanation:

https://brainly.com/question/12165044

Question: Which phrases can be used to represent the inequality? Check all that apply.

         One-half + k greater-than 18

Answer:

a. The sum of one-half and a number is more than eighteen.                      b. The sum of one-half and a number is greater than eighteen.

c. The sum of one-half and a number is above eighteen.