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3 years ago

Solve the proportion 84/12 = 28/X

Mathematics

2 answers:

victus00 [196]3 years ago

6 0

The answer is 4
84/12= 7
28/4= 7
84/12= 28/4

Leviafan [203]3 years ago

5 0

7 would be your answer

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A map of a rectangular park has a length of 4 inches and a width olo and a width of 6 inches. It uses a scale of 1 inch for ever

Zielflug [23.3K]

Answer:

The actual area of the park is 21,600 miles square.

Step-by-step explanation:

Step 1: Calculate the area of the park

Area of rectangle = Length x width

Length = 4 inches

Width = 6 inches

Scale factor is given as, 1 inch = 30 miles.

So, converting the length and width in miles by using the scale factor, we get

Length = 4 * 30 = 120 miles

Width = 6 * 30 = 180 miles

The formula of finding the area of an rectangle is:

Area = length x width

By putting the values in equation, we get

Area = 120 x 180

Area = 21,600 miles square

Therefore, the actual area of the park is 21,600 miles square.

8 0

3 years ago

X/2+8=23 so what is x

skelet666 [1.2K]

To solve this problem, we need to simplify to get x.

x ÷ 2 + 8 = 23
x ÷ 2 = 15
x = 30

Hope this helps!

5 0

3 years ago

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Use matrix T to find the following information.

drek231 [11]

Answer:

answer : 2

Step-by-step explanation:

4 0

3 years ago

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If x = 3+root8 find the value of :- 1/x

qaws [65]

Answer:

Value is 3 - √8

Step-by-step explanation:

$x = 3 + \sqrt{8} \\ \\ \frac{1}{x} = \frac{1}{3 + \sqrt{8} } \\$

rationalise the denominator:

$= \frac{1}{3 + \sqrt{8} } . \frac{3 - \sqrt{8} }{3 - \sqrt{8} } \\ \\ = \frac{3 - \sqrt{8} }{ {3}^{2} - {( \sqrt{8}) }^{2} } \\ \\ = \frac{3 - \sqrt{8} }{9 - 8} \\ \\ = 3 - \sqrt{8}$

3 0

3 years ago

Find the coefficient of the t4 term in the expansion of (4t – 375 a

stiv31 [10]

9514 1404 393

Answer:

-3840t^4

Step-by-step explanation:

The k-th term, counting from k=0, is ...

C(5, k)·(4t)^(5-k)·(-3)^k

Here, we want k=1, so the term is ...

C(5, 1)·(4t)^4·(-3)^1 = 5·256t^4·(-3) = -3840t^4

The program used in the attachment likes to list polynomials with the highest-degree term last. The t^4 term is next to last.

6 0

3 years ago