Plz help i will give brainlest

Mathematics

1 answer:

worty [1.4K]3 years ago

3 0

Answer:

Option C

Step-by-step explanation:

${ (\frac{ {x}^{4} }{ {7}^{ - 8} } ) }^{ - 7}$

$= \frac{ {x}^{4( - 7)} }{ {7}^{( - 8)( - 7)} }$

$= \frac{ {x}^{ - 28} }{ {7}^{56} }$

${x}^{ - 28} \times {7}^{ - 56}$

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A car travels at the rate of 350km in 5 hours.

leva [86]

Answer:

a.) 70 km per hour

b.) 245 km

Step-by-step explanation:

a.) Find how far the car can travel per hour by dividing:

$\frac{350}{5}= 70$

The car travels at a rate of 70 km per hour.

b.) Make an equation with h as hours and d as the distance the car can travel:

$d=70h$

Insert the hours:

$d=70(3.5)$

Simplify:

$d=70*3.5\\d=245$

At a rate of 70 km per hour, in 3.5 hours, the car can travel a total of 245 km.

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3 years ago

The sum of three consecutive integers is – 135. Find the three integers.

Klio2033 [76]

Answer:

-45, -44, -43

Step-by-step explanation:

Let the smallest consecutive integer be x. Consecutive integers have a difference of 1, so the next consecutive integer must be x+1, and the next is x+2. Since they all add up to -135, we can form this equation: x+x+1+x+2=-132. When you solve, x should be -45, which is the smallest in the set. So the next must be -45+1=-44, and the next is -44+1 which is -43.

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3 years ago

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Find m∠1 - Its Geometry

Crazy boy [7]

Answer:

m∠1 = 98°

Step-by-step explanation: