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Trava [24]
3 years ago
13

I kinda sorta understand this but not completely

Mathematics
1 answer:
Greeley [361]3 years ago
5 0
Problems 1 - 8.
When you multiply the same number raised to exponents, add the exponents. When you divide the same number raised to exponents, subtract the exponents.

1. 7^{-5} \cdot 7^{3} = 7^{-5 + 3} = 7^{-2}

3. \dfrac{2^{7}}{2^{10}} = 2^{7 - 10} = 2^{-3}
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Paisley's car used 11 gallons to travel 374 miles. How many gallons of gas would she need to travel 442 miles?
katen-ka-za [31]

Answer:

13 gallons

Step-by-step explanation:

3 0
3 years ago
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A water balloon has a diameter of 6 inches. How many cubic inches of water does it contain when it is 3/4 full
Travka [436]
Below are the choices that can be found from other sources:

A) 36 pi 
<span>B) 6 pi </span>
<span>C) 27 pi </span>
<span>D) 216 pi </span>
<span>E) 48 pi
</span>
A sphere's volume is (4/3)*pi*r^3. 
<span>The diameter of the balloon is 6 inches. The diameter is twice the radius. The radius is 3 inches. </span>

<span>(4/3)*pi*3^3 = 36 * pi </span>

<span>But the balloon is only 3/4 full. So </span>

<span>36 * (3/4) * pi = 27 * pi. </span>

<span>The balloon has 27 pi cubic inches of water.</span>
7 0
3 years ago
Which point lies on the graph of the equation 10y = 3x - 11?
GaryK [48]

Answer:

A. (2,-0.5)

Step-by-step explanation:

A pair of coordinates is always (x,y) so

If you insert the numbers into the equation you get

10(-0.5) = 3(2) - 11

-5 = 6 - 11

-5 = -5

Therefore (2,-0.5) is the point that likes on the graph

5 0
3 years ago
Which of these options is not a quadratic equation in x?
il63 [147K]

Answer:

3x³ - 2x² + 1 = 0

Step-by-step explanation:

By definition, a quadratic equation cannot have an exponent higher than 2.

6 0
3 years ago
Read 2 more answers
Please help me with this.
snow_lady [41]

Answer:

Angl.(QMT) = 134°

Angl.(QMT) = Angl.(QMS)+ Angl.(SMT)

or, 134°= (7x-4)° + (2x+3)°

or, 134° = 7x + 2x -4° +3°

or, 134° = 9x -1°

or, 134° + 1° = 9x

or, 135° = 9x

or, 135°/9° = x

or, 45° = x

x=45°

3 0
3 years ago
Read 2 more answers
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