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11111nata11111 [884]
1 year ago
13

What is the answer to √a³-7 + -4

Mathematics
1 answer:
Oksanka [162]1 year ago
4 0

Answer:

√a^3−7-4

Step-by-step explanation:

Replace all occurrences of + − with a single −. A plus sign followed by a minus sign has the same mathematical meaning as a single minus sign because 1⋅ −1= −1

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Please answer! 40 points! (It will give you half of that)
SVETLANKA909090 [29]

Answer:

1-1

2-2

3-4

4-3

5-6

6-5

Step-by-step explanation:

Just simplify each equation to its simplest form

eg,: #1

4/3 = 1 1/3

4 0
3 years ago
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A radio is being discounted 20%. If the sale price is $51.44, what was the original price of the radio? A. $12.86, B. 64.30, C.
katrin2010 [14]
The equation for decreasing a price by 20% is 
original price x 0.8 = sale price

Here, we can fill in the sale price so
original price x 0.8 = 51.44

This can be rearranged to show:
51.44 ÷ 0.8 = original price

So the original price was $64.30

Answer = B - $64.30

7 0
2 years ago
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Neil has 3 partially full cans of white paint.They contain 1/3 gallon,1/5 gallon,and 1/2 gallon of paint.About how much paint do
Wittaler [7]

Answer:

  less than 1 1/2 gallons

Step-by-step explanation:

1/3 + 1/6 = 1/2, so the sum of the three cans is more than 1 by the difference between 1/5 and 1/6. That difference is 1/30 gallon. The sum is 1 1/30 gallons, which is less than 1 1/2 gallons.

__

A suitable common denominator is 2·3·5 = 30. Then the sum of the fractions is ...

  1/3 + 1/5 + 1/2

  = 10/30 + 6/30 + 15/30

  = 31/30 = 1 1/30 . . . . . less than 1 1/2

In decimal, 1/3 ≈ 0.333, 1/5 = 0.200, 1/2 = 0.500, so the sum is ...

  0.333 +0.200 +0.500 = 1.033

which is less than 1.5.

4 0
3 years ago
Evaluate ab-c when a= 4, b= 6, and c=2
finlep [7]

Answer:

22

Step-by-step explanation:

(a*b)-c

(4 * 6) - 2

24 - 2

22

8 0
2 years ago
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Solve the following equation for y.<br>x-5y=-18<br>​
olganol [36]

Answer:

y=15x+185

Step-by-step explanation:

Step 1: Add -x to both sides.

x−5y+−x=−18+−x

−5y=−x−18

Step 2: Divide both sides by -5.

−5y−5=−x−18−5

y=15x+185

6 0
2 years ago
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