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3 years ago

Helllllllllppppppppppppppppppppppppp meeeeeeeeeeeeeeeeeeeeeee

Mathematics

1 answer:

Ulleksa [173]3 years ago

4 0

Step-by-step explanation:

You have to substitute the value of the letters in all the expressions:

(6-8)⁵/6-2(-8)² = 16/61

5(-1)² -(-4)² +3/2(-1)-4(-4) = 4/33

-9² -(-6)² +3(-20) = -117

10.

3 |3 -5|² -(3•(-5))² = -213

11.

2(-3)² -5(-3•(-2) -(-2)³ = -4

12.

-(-4)² +7(-2)⁴ -2(-3)³ = 150

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800 hm = _____ cm<br><br> 8<br> 0.08<br> 8,000,000<br> 80,000

il63 [147K]

To solve this conversion factor problem we are going to multiply our original quantity 800hm by conversion factors (expressed as fractions) in order to cancel units until we get centimeters:
We know that 1 hectometer= 100 meters, so our first conversion factor expressed as a fraction is $\frac{100m}{1hm}$
We also now that 1 meter = 100 centimeters, so our second one is $\frac{100cm}{1m}$

Now that we have our fractions, lets multiply our original quantity by them to get our answer in the required units:
$800hm( \frac{100m}{1hm} )( \frac{100cm}{1m})=8000000cm$

We can conclude that 800hm are 8,000,000cm

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3 years ago

What is the decimal multiplier to decrease by 15%?

REY [17]

<h3>Answer: 0.85</h3>

Explanation:

If we start off with $100 and decrease by 15%, then we are decreasing by $15 since 15% of 100 = 0.15*100 = 15

We start with $100 and drop to 100-15 = 85. Dividing this over the original 100 gets us 85/100 = 0.85

Put another way, 100% - 15% = 1 - 0.15 = 0.85

The decimal multiplier for "decrease by 15%" is 0.85; this sort of thing is useful if you wish to apply multiple discounts to a product.

Side note: the 0.85 can be thought of as 85%, so the product's new value is 85% of its original value

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3 years ago

What is the solution of the system for 1-3?

Aloiza [94]

Answer:

Step-by-step explanation:

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3 years ago

Help meee will give brainlist

Lilit [14]

1. 0
2. 62
3. -3.5
4. 5

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3 years ago

Read 2 more answers

For each ordered pair determine whether it is a solution to 7x-4y=-5

bogdanovich [222]

Answer:

I think it’s the fist and the fourth

Step-by-step explanation:

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3 years ago