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lora16 [44]
3 years ago
9

How do you calculate the midpoint using the given endpoints? They are : -2 and 12.

Mathematics
1 answer:
Alexus [3.1K]3 years ago
4 0

Disregard the sign. Find the mean (add the numbers, and divide by the amount of numbers there are)

2 + 12 = 14/2 = 7

Add 7 (if you are going by -2), if you are starting from 12, subtract 7

-2 + 7 = 5

5 is your midpoint.

hope this helps

The equation is: (Note: Let the two numbers be x and y)

(x + y)/2 = midpoint

hope this helps

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I think it may be 80 km/h?
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ANTONII [103]

3.906m

Step-by-step explanation:

from the topic angle of elevation and depression

putting down the above question diagrammatically

we have a triangle

The angle of elevation pad looking up = 38°

using the tangent rule TOA

TAN∅= OPPOSITE/ADJACENT

we have

tan 38° = x/5

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6 0
3 years ago
Given the right triangle below what is x?
lions [1.4K]

Answer:

B 10.8 or

A 9.2 depending on what side of the triangle is "x".

Step-by-step explanation:

we cannot see the triangle and which side is which. you forgot to show us the picture (or describe it in more detail).

but I assume that "x" would be the Hypotenuse (the baseline of the right triangle, the side opposite of the 90 degree angle).

then by using Pythagoras

c² = a² + b²

=>

x² = 10² + 4² = 116

x = sqrt(116) = 10.8

but if x is any of the other sides (and not the Hypotenuse), then you need to adapt the calculation.

for example, if the Hypotenuse is the side with 10, then Pythagoras' formula would look like this

10² = x² + 4²

x² = 10² - 4² = 84

x = sqrt(84) = 9.2 (and answer A would be correct).

or if the Hypotenuse is the side with 4, then

4² = x² + 10²

x² = 4² - 10² = -84

x = sqrt(-84)

and that did not make any sense for real distances. so, this configuration is actually impossible for a right triangle.

5 0
3 years ago
Kaya had a string 6 1/8 inches long. She cut off a piece 2 3/4 inches long. How long is the remaining piece of string? Show your
Katen [24]

Answer: 3 3/8

Step-by-step explanation:

We know that for example 2/4=4/8 so it is multiplied by 2. In this problem the fractions are 2 2/4 and 6 1/8. We are subtracting so you would first multiply the fraction that’s going to subtracted from the other fraction 2 3/4= 2 6/8. Now that we have our fractions we can subtract 6 1/8-2 6/8 this would leave us with 3.375 which is equal to 3 3/8.

4 0
3 years ago
Read 2 more answers
Name: Pres
iren2701 [21]

Answer:

9 and 3/8 left over

Step-by-step explanation:

to calculate this you have to convert the cups to eighths so:

8 cups*8= 64/8

1/4*2= 2/8

64/8+ 2/8= 66/8

66 divided by 7= 9 and 3/8

6 0
3 years ago
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