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Delicious77 [7]
4 years ago
6

Simplify each expression. 3+-7 -2 4-16 -2(2)

Mathematics
2 answers:
krok68 [10]4 years ago
5 0
Hey kiddo!

So when we simplify the first one we get: -6

When the second one is simplified we get: -16

Have a nice evening and happy learning!
~Brooke
ioda4 years ago
4 0

"+-" should always be changed to "-".

You have 3 - 7 - 2.  You may evaluate this from left to right, obtaining -4 -2, or -6.

4 - 16 -2(2) involves multiplication, which must be carried out before addition or subtraction.  Thus, 4 - 16 - 4.  Working from left to right, we get -12 - 4 = -16

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Nate and his friends are building a skateboard ramp for an upcoming contest. The length of the ramp on the blueprint is 7.6 inch
ICE Princess25 [194]

Answer:

30.4 feet.

Step-by-step explanation:

We have been given the length of the ramp on the blueprint is 7.6 inches.  The scale on the blueprint is 1 inch to 4 feet. We are asked to find the actual length of the ramp.

We will use proportions to solve our given problem as:

\frac{\text{Actual length}}{\text{Scale length}}=\frac{4\text{ ft}}{1\text{ inch}}

Now, we will substitute the scale length of ramp in our proportion as:

\frac{\text{Actual length}}{7.6 \text{ Inches}}=\frac{4\text{ ft}}{1\text{ inch}}

\frac{\text{Actual length}}{7.6 \text{ Inches}}\cdot 7.6 \text{ Inches}=\frac{4\text{ ft}}{1\text{ inch}}\cdot 7.6 \text{ Inches}

\text{Actual length}=4\text{ ft}\cdot 7.6

\text{Actual length}=30.4\text{ ft}

Therefore, the actual length of the ramp would be 30.4 feet.

7 0
3 years ago
Question:
faltersainse [42]

Answer:

The probability that a ship that is declared defecive is sound is 0.375

Step-by-step explanation:

Let P(A|B) denote the conditional probability of A given B. We will make use of the equation

P(A|B) = P(A) × P(B|A) / P(B)

We have the probabilities:

  • P(Declared Defective (detected) | Defective) = 0.95
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  • P(Declared Defective |Sound) = 1-0.97=0.03
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We can calculate:

P(Declared Defective)= P(Detected | Defective)×P(Defective) + P(Declared Defective |Sound) ×P(Sound) = 0.95×0.05 + 0.03×0.95=0.076

P(S | Declared Defective) =

(P(Sound) × P(Declared Defective | Sound)) / P(Declared Defective)

=0.95×0.03 /0.076 =0.375

3 0
3 years ago
Please help I will mark brainliest if right
o-na [289]

Answer:

3

x

+

3

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24

x

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10

x

≤

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9

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2.5

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3 0
3 years ago
A Recipe calls for 1/2 cup of tomatoes for everyone 1/8 cups of jalapeños if you accidentally poured in 1 1/2 cups of tomatoes h
slavikrds [6]

Answer:

She should use 3/8 cup of jalapenos.

Step-by-step explanation:

This is because 1 1/2 is three times of 1/2 so you times 1/8 by three as well which equals to 3/8 cup of jalapenos.

8 0
3 years ago
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swat32
G (x) = |x + 10| (if you mean horizontal translation to the left)
or g (x) = | x | + 10 (vertical translation 10 units up)
5 0
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