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Mashcka [7]
3 years ago
11

Someone pls help i don’t understand this

Mathematics
1 answer:
soldi70 [24.7K]3 years ago
3 0

Answer:

to help, i will demonstrate the first problem. This is a right triangle. We know this because it is a 45-45-90 triangle.

Because of this we know that the sides are 2 and 2 (they must be equal).

Now we need the hypotenuse- the side across from the right angle (in other words, the diagonal line).

To do this we take 2 times the square root of two. This makes it 2.82.

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4) A line has a slope of -5 and passes through the point (2, 2). An equation for this line is
stich3 [128]

Answer:

D: y= -5x+12

Step-by-step explanation:

Since the slope is -5 is either C or D. Let's replace x= 2 in either to see what we get.

C: -5(2)-2 = -12 Nope.

D: -5(2) +12 = 2 Good!

5 0
2 years ago
How do the expressions 72 / 9 and -72/ (-9) compare when they are evaluated?
Artemon [7]

Answer:

D

Step-by-step explanation:

72/9=8

-72/-9=8 because negative/negative=positive.

7 0
3 years ago
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Vinvika [58]

Answer:

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Step-by-step explanation:

4 0
3 years ago
Write the equation for:
svetlana [45]

Answer:

1. -16-(-11)=5

2.48 divided by -8 is 12

3.13/5=2

4.81-11=7

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6 35*2=5

Step-by-step explanation:

6 0
3 years ago
Eurostar is a high-speed railway service connecting
Setler79 [48]

Answer:

649 trains

Step-by-step explanation:

If there are 30 seats per carriage, and there is 18 carriages per train.

You multiple 30 and 18 to get how many seats there are in a train.

30*18 is 540 seats.

To figure out how many trains would be needed to seat 350,000 passenger, you have to divide 350,000 with 540 to get how many trains would be needed.

350,000/540 is 648.1

Since the answer is 648.1 and you can't chop a train into 10 pieces, you would need 649 trains to seat 350, 000 passengers.

8 0
3 years ago
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