3 years ago

Which of the following must be true?

1 answer:

5 0

The answer is C, when numbers or variables are between "|" (also called bars) it means to remove any negative symbols and think of it as a positive number. If the number is already positive you keep it a positive number.

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You leave a 20% tip on your $70 dinner bill. How much was the tip

jonny [76]

$\frac{20}{100} \times70 = \frac{1}{5} \times 70 \\ = 14$
hey hope this helps

5 0

2 years ago

Find (a) the circumference and (b) the area of the circle. Use 3.14 or 22/7 for pi. Round your answer to the nearest whole numbe

balandron [24]

Answer:

a)219.8

b)3846.5

Step-by-step explanation:

a) circumference is pi*diameter, so 3.14*70 is 219.8

b) area is pir^2, and radius is 1/2 of diameter, it would be 3.14*35^2, so 3.14*1225, so 3,846.5 in^2.

4 0

3 years ago

Read 2 more answers

What’s the distance between the points (-7,-4) and (-5,-4)?

Radda [10]

Answer:

2 units

Step-by-step explanation:

Distance

$= \sqrt{(-4 - (-4))^2 + (-7 - (-5))^2}$

$= \sqrt{0^2 + (-2)^2}$

$= \sqrt{(-2)^2}$

$= 2$

3 0

3 years ago

Given y = x + 1 Calculate y if x = 3. y is a natural number

kompoz [17]

Answer:

y = 4

Step-by-step explanation:

If 3 is x than you can substitute x for 3. y = 3 + 1. Then when you add y = 4

7 0

3 years ago

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Solve the linear equation. 2x+3(x-4)=(2x+3)

I am Lyosha [343]

Answer:

X=5

Step-by-step explanation:

Cancel equal terms remove parentheses.

Move the constant to the right.

Add the numbers.

Divide by 3 on both side. and X=5

Hope this helps

3 0

3 years ago