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3 years ago

3g) | Which is the simplified form of the expression 14:

Mathematics

1 answer:

pychu [463]3 years ago

5 0

Answer:Use your order of Operations to solve

- Parentheses

- Exponents

- Multiplication and Division, Left to Right

- Addition and subtraction, Left to Right.

So, the inner most parentheses we have is (42 - 32), which gives us 10:

3[14 ÷ 10 - 5]

Division is of higher precedence than subtraction, so next we determine 14 ÷ 10 and get

3[1.4 - 5]

Subtraction within the brackets is next:

3 [-3.6]

And now, with only a constant inside the brackets, multiply:

3 * [-3.6] = -10.8

Step-by-step explanation:

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Sean is learning to scuba dive. The equation D = 20L + 15 represents the depth he can dive in feet, D, based on the number of le

Stels [109]

Answer:

Sean can dive 275 feet after he takes 13 lessons.

Step-by-step explanation:

Since L means the number of lessons taken, we will have:

D = 20*13 + 15

D = 260 +15

D = 275

4 0

3 years ago

You are going to a 1940 mile trip, and your car get about 28 miles per gallon. Gas prices along your route average $2.95 per gal

Nataliya [291]

Answer: $\$\ 204.4$

Step-by-step explanation:

Given

The total length of the trip is $l=1940\ \text{miles}$

Car average is 28 miles per gallon

So, car requires

$\Rightarrow \dfrac{1940}{28}=69.285\ \text{gallon}$

Price of gas is $2.95 per gallons

$\therefore \text{cost is =}69.285\times 2.95\\\Rightarrow \$\ 204.4$

So, the cost of the trip is $\$\ 204.4$

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2 years ago

Find the missing value of a triangle one leg is 12 and the long side is 20 what is the other leg?

Burka [1]

Simple,

using the Pythagorean Theorem...

$a^{2} + b^{2} = c^{2}$

You have the hypotenuse (C) and one of the legs (A)

So, plug in what you know...

$12^{2}+ b^{2} = 20^{2}$

144+ $b^{2}$ =400

Now,isolate $b^{2}$

$144+ b^{2} =400$
-144 -144

Leaving you with...

$b^{2} =256$

So, now, $\sqrt{256}$ , to find what b is..

b=16

Thus, your answer.

3 0

3 years ago

Read 2 more answers

Which ordered pair is a solution of the inequality?

Greeley [361]

Answer:

Step-by-step explanation:

$y-1$

8 0

3 years ago

How many boys are in the choir

Dafna11 [192]

9514 1404 393

Answer:

D. 210

Step-by-step explanation:

If b is the number of boys in the choir, the ratio of boys to girls is ...

b/150 = 7/5

b = 150(7/5) = 30(7) = 210

There are 210 boys in the choir.

8 0

3 years ago