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3 years ago

Solve 3-x/2≥15 A.x ≤ -24 B.x ≤6 C.x ≥ -24 D.x ≥ -6

Mathematics

1 answer:

krek1111 [17]3 years ago

7 0

What she said hope that helps

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Point B is in between A and C in a segment. AB= 22 and BC=30 Find AC

dolphi86 [110]

Answer:

AC = 52

Step-by-step explanation:

Add the segment lengths together.

AB + BC = AC

22 + 30 = 52

4 0

3 years ago

The areas of two similar triangles are 72dm2 and 50dm2. The sum of their perimeters is 226dm. What is the perimeter of each of t

astraxan [27]

Answer:

Hence, the perimeter of the triangles are:

P=123.2727 dm

P'=102.7272 dm

Step-by-step explanation:

In two similar triangles:

The ratio of the areas of two triangle is equal to the square of their perimeters.

Let A and A' represents the area of two triangles and P and P' represents their perimeter.

Then they are related as:

$\dfrac{A}{A'}=\dfrac{P^2}{P'^2}$

We are given:

A=72 dm^2 , A'=50 dm^2

and P+P'=226 dm.-----------(1)

i.e. $\dfrac{72}{50}=\dfrac{P^2}{P'^2}\\\\\dfrac{36}{25}=\dfrac{P^2}{P'^2}$

on taking square root on both the side we get:

$\dfrac{P}{P'}=\dfrac{6}{5}\\\\P=\dfrac{6}{5}P'$

Now putting the value of P in equation (1) we obtain:

$\dfrac{6}{5}P'+P'=226\\\\\dfrac{6P'+5\times P'}{5}=226\\\\\dfrac{6P'+5P'}{5}=226\\\\11P'=226\times 5\\\\11P'=1130\\\\P'=\dfrac{1130}{11}=102.7272$

Hence,

P=226-102.7272=123.2727

Hence, the perimeter of the triangles are:

P=123.2727 dm

P'=102.7272 dm

6 0

3 years ago

F(x)=-x^3-x^2+1 what is f(-1)

xxMikexx [17]

-1^3 - -1^2 +1= -1. ...........

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3 years ago

This year, Carmen watched 70 movies. She thought that 21 of them were very good. Of the movies she watched, what percentage did

spin [16.1K]

Carmen thought 30% of the movies were good.

I found the percent by dividing 21 by 70

21/70= .3

.3= 30%

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3 years ago

Rational exponent form of the square root of 10

sp2606 [1]

To make the exponent rational, for square root use 1/2. To wit:
10^(1/2)

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3 years ago