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qaws [65]
3 years ago
15

THIS IS A 3-STEP QUESTION PLEASE ASWER ACCORDINGLY! THANKS !!!

Mathematics
1 answer:
mariarad [96]3 years ago
4 0
A.
Let x = age of Samantha.
Then x - 2 = age of Emily,
and x + 2 = age of Lauren.

b.
x - 2 + x + x + 2 = 42

c.
x - 2 + x + x + 2 = 42

3x = 42

x = 14

x - 2 = 14 - 2 = 12

x + 2 = 14 + 2 = 16

The ages of the sisters are 12, 14, 16.
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Pls help with question 7
Marizza181 [45]

Answer:

C. 52/289

Step-by-step explanation:

Ok so the total number of marbles is 6+4+2+5 (17).

The probability of picking an orange is 4/17 (because there are 4 orange blocks).

The probability of picking a block that isn't orange is 13/17.

Multiply those two numbers together, and you get: 52/289

5 0
3 years ago
A circle has center (5, –4) and radius 8. Which gives the equation for the circle
andrew-mc [135]

Answer:

(x-5)^2 + (y+4)^2 =64

Step-by-step explanation:

5 0
4 years ago
Select the correct product.<br><br> (x2 + 6x + 9)(3x - 1)
dem82 [27]

(2x + 6x + 9)(3x - 1)

        v

         (8x+9)(2x)

              v

             (17x)(2x)

                     v

                  34x

5 0
4 years ago
Which equation justifies why seven to the one third power equals the cube root of seven?
Rudiy27

The equation that  justifies why seven to the one third power equals the cube root of seven is seven to the one third power all raised to the third power equals seven to the one third times three power equals seven

<h3>How to solve an equation?</h3>

using indices law,

\sqrt[n]{x}  = x^{1 / n}

Therefore, let's justify

7^{1/3}  = \sqrt[3]{7}

Hence, the justification is as follows;

(7^{1 /3}) ^{3} =(7^{1/3})^{3}  = 7

Therefore, the justification of is that seven to the one third power all raised to the third power equals seven to the one third times three power equals seven

learn more on equation here: brainly.com/question/13426221

#SPJ1

4 0
2 years ago
Complete the equation of the line through (-9,7) and (-6,-3)
masya89 [10]

Answer:

In point slope form, the equation is y-7=(-10/3)(x+9).  In slope-intercept form, it is y=(-10/3)x-23.

First find the slope of the line.  The formula for slope is

m=(y₂-y₁)/(x₂-x₁)

Using our points, we have 

m=(-3-7)/(-6--9) = -10/3

Plug this into point slope form:

y-y₁=m(x-x₁)

y-7=(-10/3)(x--9)

y-7=(-10/3)(x+9)

Using the distributive property:

y-7=(-10/3)*x+(-10/3)*9

y-7=(-10/3)x-90/3

y-7=(-10/3)x-30

Add 7 to both sides:

y=(-10/3)x-23

Read more on Brainly.com - brainly.com/question/9534978#readmore

Step-by-step explanation:

4 0
3 years ago
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