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pashok25 [27]
2 years ago
12

HELP!! 10 MIN REMAINING.

Mathematics
2 answers:
AysviL [449]2 years ago
8 0

Answer:

here now you can give her brainliest

Step-by-step explanation:

Alex17521 [72]2 years ago
4 0

Answer:

Scientists can tell by observing the seismic waves that are recorded all over the surface of the earth from distant earthquakes. The seismic waves are reflected (bounced off) layers of different density, and they are refracted (bent) when they enter layers of different density.

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Jill, Meg, and Beth are sisters. Jill is 4 years younger than Meg. Enter an algebraic expression based on this situation. Let m
Murljashka [212]

Lets say

Jill=J

Meg=m

Beth=b

Jill is 4 years younger than meg so j+4=m

This is because if you add 4 to Jill's age, her age is going to be Megs age

Hope this helps and a brainliest would be appreciated

4 0
2 years ago
1 ) Considere a expressão algébrica:
balandron [24]
A) i think is correct andewmer
7 0
2 years ago
A certain 90-mile trip took 2 hours. Exactly 1/3 of the distance traveled was by rail and this part of the trip took 1/5 of the
antiseptic1488 [7]

The average rate, in miles per hour, of the rail portion of the trip is; D: 75

<h3>How to calculate the average speed?</h3>

Since exactly 1/3 of the distance travelled was by rail, then we can say that;

(1/3) * (90) = 30 miles

We are told that part of the trip took 1/5 of the travel time. Thus;

Time it takes to travel that distance is:

(1/5) * (2) = 2/5 of an hour

Average rate is;

30/(2/5) = 150/2 = 75 mph

Read more about Average speed at; brainly.com/question/4931057

#SPJ1

7 0
2 years ago
Evaluate the expression 3(x-1)2nd power +2x-7 for x=3
Yanka [14]

Answer:

11

3Step-by-step explanation:

Given

3(x - 1)² + 2x - 7 ← substitute x = 3 into the expression

= 3(3 - 1)² + 2(3) - 7

= 3(2)² + 6 - 7

= 3(4) - 1

= 12 - 1

= 11

5 0
3 years ago
A polyhedron has two parallel hexagon bases, each with an area of 18 square meters. Find the volume of the polyhedron if its hei
MaRussiya [10]
14.72 is the answer i got
5 0
2 years ago
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