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3 years ago

Simplify 1-2 (-3+x) +x

2 answers:

7 0

Step 1. Regroup terms
1 -2(x - 3) + x
Step 2. Expand
1 - 2x + 6 + x
Step 3. Collect like terms
(1 + 6) + (-2x + x)
Step 4. Simplify
-2x + 7

kifflom [539]3 years ago

4 0

There’s a good website called math papa that works really well for stuff like this

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For which function is f(x) equal to f^-1(x)?

natulia [17]

I think it can be C. but then again who am i

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3 years ago

The circumference of a circle is 22π in. What is the area, in square inches? Express your answer in terms of π

charle [14.2K]

Answer:

A = 121 pi in^2

Step-by-step explanation:

The circumference is given by

C = 2 * pi*r

22 pi = 2 * pi *r

Divide each side by 2 pi

22 pi / (2 pi) = 2 pi r / (2pi)

11 = r

Now find the area

A = pi r^2

A = pi (11)^2

A = 121 pi in^2

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3 years ago

A jacket is on sale for $15 off. As part of a one-day sale, a 20% discount is applied to all purchases. If x represents the orig

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(x-15).8 this is the answer

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3 years ago

Read 2 more answers

Boys to girls ratio is 2 to 3. There are 18 girls. What is total number of students

alexdok [17]

$\frac{2}{3}=\frac{boys}{18}$

3*boys=2*18

3*boys=36

boys=12

12+18=30

total number of students: 30

8 0

3 years ago

Read 2 more answers

A standard American Eskimo dog has a mean weight of 30 pounds with a standard deviation of 2 pounds. Assuming the weights of sta

nalin [4]

Answer:

Option 2 - Approximately 24–36 pounds

Step-by-step explanation:

Given : A standard American Eskimo dog has a mean weight of 30 pounds with a standard deviation of 2 pounds. Assuming the weights of standard Eskimo dogs are normally distributed.

To find : What range of weights would 99.7% of the dogs have?

Solution :

The range of 99.7% will lie between the mean ± 3 standard deviations.

We have given,

Mean weight of Eskimo dogs is $\mu=30$

Standard deviation of Eskimo dogs is $\sigma=2$

The range of weights would 99.7% of the dogs have,

$R=\mu\pm3\sigma$

$R=30\pm3(2)$

$R=30\pm6$

$R=30+6,30-6$

$R=36,24$

Therefore, The range is approximately, 24 - 36 pounds.

So, Option 2 is correct.

5 0

4 years ago