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3 years ago

Do all number lines show only whole number

Mathematics

1 answer:

Lera25 [3.4K]3 years ago

8 0

Answer:

Step-by-step explanation:

no because some numbers could be negative and most number lines also contain 0. whole numbers are positive, non decimal/fractional, real numbers

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What is 20℅ of 350℅ <br>please help

Ad libitum [116K]

What is 20 percent (%) off $350?

Using the formula 1 and replacing the given values:

Amount Saved = Original Price x Discount % / 100. So,
Amount Saved = 350 x 20 / 100
Amount Saved = 7000 / 100

Amount Saved = $70 (answer)

3 0

3 years ago

Find the total surface area of the right square pyramid with

valina [46]

Answer:

$A= {a}^{2} +2a \sqrt{ \frac{ {a}^{2} }{4} + {h}^{2} } \\ = {1}^{2} +2·1· \sqrt{ \frac{ {1}^{2} }{4}+ {2}^{2} } \\ ≈5.12311$

4 0

3 years ago

Evaluate the following expression.<br> 1/5^-2

Romashka [77]

This is how the whole equation goes:
1/x^-a = x^a
So, 1/5^-2 is the same as 5^2, which is 25.

8 0

3 years ago

Read 2 more answers

a sign says that the price marked on all music equipment is 30% off the original price you buy an electric guitar for sale price

prohojiy [21]

The original price is $450.

<u>Step-by-step explanation:</u>

Step 1:

Given details, Discount%, D% = 30 and Selling Price, SP = $315

Step 2:

Write down formula for calculating the Original Price

Selling Price (SP) = Original Price (OP) - Discount (D)

Discount (D) = Original Price (OP) * (D%/100)

Step 3:

Substitute given values in the formula

315 = OP - D

D = $OP \times30/100$

D = 0.3 OP

Step 4:

Substitute value of D in the first formula

315 = OP - 0.3 OP

315 = OP (1 - 0.3) = 0.7 OP

Original Price, OP = 315/0.7 = $450

5 0

4 years ago

Find the distance between the two points rounding to the nearest tenth (if necessary).

Ket [755]

Answer:

2.8 units

Step-by-step explanation:

$d = \sqrt{ {(3 - 1)}^{2} + {(6 - 8)}^{2} } \\ \\ d = \sqrt{ {(2)}^{2} + {( - 2)}^{2} } \\ \\ d = \sqrt{4 + 4} \\ \\ d = \sqrt{8} \\ \\ d = 2.82842712 \\ \\ d \approx \: 2.8 \: units$

6 0

3 years ago