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2 years ago

A(8x + 7) what is the value of a

Mathematics

1 answer:

sdas [7]2 years ago

4 0

Answer:

A B C E F G H I J K L M N O P Q R S T U V W Y & Z so I guess the value of A is 1

Step-by-step explanation:

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What's the difference between an arithmetic sequence and a geometric sequence?

rusak2 [61]

Answer:

A sequence is a set of numbers, called terms, arranged in some particular order. An arithmetic sequence is a sequence with the difference between two consecutive terms constant. The difference is called the common difference.

Hopefully that helps ! (:

8 0

3 years ago

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A car travels 450 miles in the same time that a motorcycle travels 390 miles. if the car’s speed is 10 miles per hour more than

spin [16.1K]

The car is driving at 75 mph and the motorcycle at 65 mph

8 0

2 years ago

1/3(6z+7.2)=0.5(8z+2)-0.4 please hurry this is for now

Crazy boy [7]

Answer:

z = - 0.78

Step-by-step explanation:

Given:

1/3(6z+7.2)=0.5(8z+2)-0.4

Open parenthesis

2z + 2.4 = (4z + 1) - 0.4

2z + 2.4 = - 1.6z - 0.4

Collect like terms

2z + 1.6z = - 0.4 - 2.4

3.6z = -2.8

z = -2.8 / 3.6

= - 0.78

3 0

2 years ago

An Elevator descends into a mine shaft at the rate of 5m/min. If the descend starts from 15m above the ground, how long will it

zhenek [66]

First of all, assuming that the "ground level" is 0;

The lift is not starting from 0, so we also need to account for the extra 15 meters above the ground the lift is.

The total distance the lift would cover in the downward direction: 15+350=365m

Now, you know that the lift covers 5 m/min

Therefore, 5x=365 (ignoring units because they can complicate things)

x=365/5
x=73 minutes

Therefore, they would take 73 minutes to reach 350 m deep into the ground with a starting position 15 m above the ground.

Hope I helped :)

5 0

3 years ago

Samantha and Mia each left Julia’s house at the same time. Mia walked north at 7 kilometers per hour. Samantha ran west at 11 ki

Lena [83]

Mia walked 7km/h so after 1 hour, she is 7 km north of the house of Julia

Samantha walked 11km/h so after 1 hour, she is 11 km west of the house of Julia.

The points where Mia and Samantha are after 1 hour , and the house of Julia form a right triangle with sides 7 and 11 km. The distance between the girls, is the hypotenuse of his triangle.

by the pythagorean theorem:

$MS= \sqrt{ 7^{2} + 11^{2} }= \sqrt{49+121}= \sqrt{170}= 13 (km)$

Answer: 13 km

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3 years ago

Read 2 more answers