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3 years ago

Can someone please solve this for me?

Mathematics

1 answer:

Elden [556K]3 years ago

7 0

It looks like for this one you just need to use the midpoint formula for (2a,0) and (0,-4b).
To do this, just use the midpoint formula:
{ (x1+x2)/2 , (y1+y2)/2 }
So 2a+0/2 = a,
and 0-4b= -2b.
So the answer is the second one, (a,-2b)

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6. A prism has bases that are equilateral triangles with sides lengths of 10 inches and a length of 30 inches.

eimsori [14]

Answer:

The volume of the prism is $1,299\ in^{3}$

Step-by-step explanation:

we know that

The volume of the prism is equal to

$V=BL$

where

B is the area of the triangular base

L is the length of the prism

we have

$L=30\ in$

The area of a equilateral triangle is equal to

$B=\frac{1}{2}(10)^{2} sin(60\°)$

$B=25\sqrt{3}\ in^{2}$

substitute

$V=(25\sqrt{3})(30)=1,299\ in^{3}$

8 0

3 years ago

X - 5 > -10. give the solution

expeople1 [14]

X > -10 + 5
bring the five to the other side of the equation and change the sign in front
x > -5

5 0

3 years ago

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Two times a number added to another number is 25. Three times the first number minus the second number is 20. What are both numb

lawyer [7]

Answer:

the two number are 7 and 9

Step-by-step explanation:

2*x+y=25

3x-y = 20

add the two equations

2*x+y=25

3x-y = 20

---------------

5x = 45

divide by 5

5x/5 = 45/5

x = 9

lets find y

2x+y = 25

substitute x

2*9 +y =25

18+y =25

subtract 18 from both side

y = 25-18

y =7

7 0

3 years ago

A package of 5 pairs of insulated socks costs $26.45. What is the unit price of the pairs of socks?

tigry1 [53]

Answer:

$5.29 per pair of socks

Step-by-step explanation:

26.45/5=5.29

3 0

2 years ago

Solve.

Nikitich [7]

The answer to this is B

4 0

3 years ago

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