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3 years ago

Choose all that give the correct expression.

1 answer:

7 0

The statements that correctly represent the scenario stated are:

B. because losing 8 pounds is represented as -8 and doing this for 3 months would be 3 groups of -8 or 3 x -8

D. because they showed the weight loss as a negative integer and then put those into groups of 4 each using the distributive property)

The error with the other 2 choices is that the negative number is not correctly representing which part of the problem is a decrease. The negative sign is placed on the number of groups of.

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The length of a rectangle is twice the width. the perimeter is 90 inches. what is the rectangle's area? you write the equation 2

Lynna [10]

450 in. squared. after you get 15, substitute it for x in the length and width. this means you would have 2(15) X (15) whixh equals 450 in. squared

7 0

4 years ago

Write an equivalent exponential equation for:<br> <img src="https://tex.z-dn.net/?f=log_%7B2%7D%20%28%5Cfrac%7B1%7D%7B4%7D%20%29

Kisachek [45]

Answer: $\frac{1}{4}=2^{(-2)}$

Step-by-step explanation:

You know that an expression written is logarithmic form is:

$x=log_b(y)$

And an expression equivalent to the expression above that is written in exponential form is:

$y=b^x$

Therefore, keeping the information above on mind, you have that an equivalent exponential equation for $log_{2}(\frac{1}{4}) =-2$ , is the shown below:

$\frac{1}{4}=2^{(-2)}$

5 0

3 years ago

Read 2 more answers

Find the lowest common multiple (LCM) of 6, 10 and 14. *

Leokris [45]

Answer:

C. 210

Step-by-step explanation:

Plugging it in directly

30/14=2.14 (not an integer)

140/6=23.33 (not an integer)

210/6=35

210/10=21

210/14=15

all of the above result in integers, so the answer is C.

D is not even checked because it is larger than 210

4 0

3 years ago

Read 2 more answers

What equation of a line parallel to y=7x-3, has a y-int of 5?

Fiesta28 [93]

Answer:

y=7x+5

Step-by-step explanation:

some of the other choices may be parellel to y=7x-3 but they don't have 5 as the y intercept

6 0

3 years ago

Equation M: y = x + 4

sladkih [1.3K]

Solve the system

<span>y = x + 4
y = 3x + 6

Note that both equations have been solved for y. Thus, you can set y = y, or

x+4=3x+6. Simplifying, -2 = 2x, or x = -1.

Another way to look at this would be x + 4 = 3x + 6.</span>

4 0

3 years ago