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lora16 [44]
3 years ago
11

Solve for a: 35= -7a+14

Mathematics
2 answers:
ANEK [815]3 years ago
6 0

Answer:

35= -7(-3)+14

Step-by-step explanation:

-7x-3

ankoles [38]3 years ago
4 0
-7a + 14 = 35
-7a + 14 - 14 = 35 - 14
-7a = 21
—- —-
-7 -7
a = -3

hope this helps!! :)
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Brainliest if correct
kvv77 [185]

Answer:

2/13

Step-by-step explanation:

4 0
3 years ago
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Suppose that two people standing 2 miles apart both see the burst from a fireworks display. After a period of​ time, the first p
Usimov [2.4K]

Answer: approximately 5148 feet directly north of point A

This is equivalent to 0.975 miles

==============================================================

Explanation:

Check out figure 1 (attached image below) to see how the drawing is set up.

Points A and B are separated by 2 miles, or 10560 feet. Use the conversion factor 1 mile = 5280 feet.

Because sound travels at roughly 1100 feet per second (assuming all of the conditions are right), this means that after x seconds, the sound wave has traveled a total distance of 1100x feet. This is the distance from A to C. Point C is the firework location.

The distance from B to C is 1100(x+6) feet because it takes 6 more seconds for the soundwave to travel from C to B, compared from C to A.

Note that triangle ABC is a right triangle. The 90 degree angle is at point A.

We can use the pythagorean theorem to solve for x

See figure 2 in the attached images to see the steps on solving for x. The numbers get quite big, though in the end x is fairly small. We end up with x = 4.68, which is approximate due to the 1100 figure being approximate.

This means the sound wave takes about 4.68 seconds to go from point C to point A.

With this x value, we can compute the expression 1100x to get

1100*x = 1100*4.68 = 5,148 feet

To convert this to miles, divide by 5280

(5148)/(5280) = 0.975

Therefore,

5148 feet = 0.975 miles

6 0
3 years ago
Joshua buys five bottles of orange juice she has coupons for $.65 off the regular price of each bottle of juice after using the
Aleksandr-060686 [28]
The regular price of a bottle of orange juice is 6.85$ . . . .
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Answer:


Step-by-step explanation:

a) x>0 → items can not be negative

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3 years ago
What is the range of the function y=2x+1 for the domain 2&lt;=x&lt;=5?
egoroff_w [7]
So domain is the number you can use
range is the output your get from inputting the domain given
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since it is linear, we can be sure that we only need to test the endpoints of the domain to find the endpoints of the range

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in interval notation: [5,11]
in other notation 5≤y≤11
or
R={y|5≤y≤11}
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3 years ago
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