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Georgia [21]
3 years ago
12

7x(x+1.8)=0 7x(x+1.8)=0 7x(x+1.8)=0 Answer those 3

Mathematics
1 answer:
ahrayia [7]3 years ago
3 0

Answer:

The answer to all of those questions would be x=-1.8

Step-by-step explanation:

7x(x + 1.8) = 0 - Distribute through the Parenthesis -

7x^2 + 12.6x = 0

x(7x + 12.6) = 0


x = 0


7x + 12.6 = 0

7x = -12.6

x = -12.6/7

x = -1.8


so x = 0 or x = -1.8

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Which is equivalent to 3^4
musickatia [10]

Answer:

81

Step-by-step explanation:

3^4

=3*3*3*3

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Hope this helps!!

8 0
3 years ago
A student on the cross- county team runs 30 minutes a day as a part of her training. Write an equation to describe the relations
KengaRu [80]

Answer:

The answer is below

Step-by-step explanation:

A student on the cross- county team runs 30 minutes a day as a part of her training. Write an equation to describe the relationship between the distance she runs in miles, D, and her running speed, in miles per hour, when she runs at a constant speed of 5.4miles per hour for m minutes, and then at b miles per hour for n minutes

Solution:

Given that the student runs for a total of 30 minutes per day. He runs at 5.4 miles per hour for m minutes, and then at b miles per hour for n minutes.

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m + n = 30

60 minute = 1 hour. Therefore, m minute = m/60 hour, n minute = n/60 hour.

The distance traveled is the product the speed in miles per hour and the time taken to cover the distance. Distance = speed * time

The total distance ran (D) is:

D = 5.4(m/60) + b(n/60)

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3 years ago
Can Anyone Help Me ??!?
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D

Step-by-step explanation:

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In the given figure x = 145º. What theorem can be used to prove the lines p and a
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4 0
3 years ago
Read 2 more answers
23,579<br> 38,743<br> 65,559<br> +66.559
viktelen [127]

Answer:

194,440 or 127,947.559

Step-by-step explanation:

if that's supposed to be a comma on 66.559 then the answer is 194,440. If not it's 127,947.559.

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