Need help, and please answer

Mathematics

1 answer:

masya89 [10]3 years ago

6 0

Answer:

$7(2+x)(2-x)$

Step-by-step explanation:

observe

$28-7x^2=7(4-x^2)=7(2+x)(2-x)$

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The sum of the first and third of three consecutive even integers is 164. Find the three even integers.

givi [52]

The three even integers are 80, 82, and 84.

The sum of the first (80) and the third (84) integers = 80 + 84 = 164, verifying our answer.

A simple way to figure this out is to divide 164 by 2, which gives you 82. From this answer, if we subtract 2 to get the first integer and add 2 to get the third integer while keeping 82 as the second integer, we end up with the correct sum of 164.

Hope this helps!

7 0

3 years ago

Jacob and Sarah are saving money to go on a trip. They need at least $1975 in order to go. Jacob mows lawns and Sarah walks dogs

salantis [7]

Answer: x = # of lawns

50 divided by 4 = x

Step-by-step explanation:

not positive but hope it helps

6 0

3 years ago

Read 2 more answers

What is 2 3/7 times 1/2

avanturin [10]

Answer:

1 3/14

Step-by-step explanation:

You divide everything by 2 because it is a fraction.

3 0

3 years ago

Você é um comandante de uma espaçonave. Sua missão é chegar até Alfa Centauro em cinco anos. A distância do Sol até Alfa Centaur

Deffense [45]

Answer:

The spaceship will get to Alpha Centaur in time

Step-by-step explanation:

<u><em>The complete question in English is</em></u>

You're the commander of a spaceship. Your mission is to reach Alpha Centaur in five years. The distance from the sun to Alpha Centaur is 2.5 x 10^13 miles. The distance from Earth to Sun is approximately 9.3 x 10^7

miles. Your spaceship can travel at the speed of light. You know that light can travel a distance of 5.88 x 10^12 miles in a year. Can you get to Alpha Centaur in time?

step 1

Find the time it takes for the spaceship to travel from Earth to the Sun

The distance from the Earth to Sun is equal to

$9.3*10^7\ miles$