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Katyanochek1 [597]
3 years ago
13

10 x 7 = 70

Mathematics
2 answers:
beks73 [17]3 years ago
7 0
The answer is D it shrinks to 35
deff fn [24]3 years ago
3 0

Answer:

D

Step-by-step explanation:

10÷2=5

So you would divide your answer by 2

7×5 is 35 also btw

7×10 is 70

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Help needed math 3 - 10 points read closely
inessss [21]
<h2>Hello!</h2>

The answer is:

The answer is the fourth option,

f(-3)=-\frac{1}{3}

<h2>Why?</h2>

Piecewise functions are functions that are composed by two or more expressions, the expression to use will depend of the domain or input that we need to evaluate.

We are given the piecewise function:

\left \{ {{\frac{1}{x}, if x

There, we know that:

We should use the first expression if the value to evaluate is less than -2.

So, for this case, the function will be:

f(x)=\frac{1}{x}

We should use the second expression if the value to evaluate is greater or equal than 2.

So, for this case, the function will be:

f(x)=x^{2}

Now, since we are given that the value to evaluate is -3, and its less than -2, we need to use the first expression, and evaluate it.

-3

So, evaluating the function we have:

f(x)=\frac{1}{x}

f(-3)=\frac{1}{-3}

f(-3)=-\frac{1}{3}

Hence, we have that the answer is the fourth option,

f(-3)=-\frac{1}{3}

Have a nice day!

7 0
3 years ago
The ratio of boys to girls is 3:2. If there are a total of 20 children in Mrs. Nelson's class, how many are girls?​
Scilla [17]

12:8

So 12 boys

8 girls

8 0
3 years ago
Evaluate each expression if a=-1, b=4,x=-2 and y=3<br><br> 2(6a-2b)-8x
Andreyy89

Answer:

-12

Step-by-step explanation:

2(6a-2b)-8(-2)

=2[6(-1)-2(4)]+16

=2[-6-8]+16

=2[-14]+16

=-28+16

=-12

4 0
3 years ago
Dr. Drazzle collected 70 L of ocean water to test for antibacterial properties he split the water into 100 samples how much wate
Mazyrski [523]
70 liters ÷ 100 samples= 0.7 or 7/10 liter per sample

Hope this helps! :)
6 0
3 years ago
Read 2 more answers
One number is 8 times a first number. A third number is 100 more than the first number. If the sum of the three is 690, find the
mezya [45]
<h3>Given</h3>

Three numbers are n, 8n, and (100+n).

Their total is 690.

<h3>Find</h3>

the three numbers

<h3>Solution</h3>

n + 8n + (n+100) = 690

10n + 100 = 690 . . . . . . . simplify

10n = 590 . . . . . . . . . . . . subtract 100

n = 59

8n = 472

n +100 = 159

The three numbers are 59, 472, and 159.

6 0
3 years ago
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