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Dvinal [7]
4 years ago
14

Geometry math question please help

Mathematics
2 answers:
Rom4ik [11]4 years ago
8 0

Since BD joins the midpoints of two sides of a triangle, it is half the length of the third side, FE.

BD = (1/2)FE = (1/2)(23.5) = 11.75

Answer: B. 11.75

Bezzdna [24]4 years ago
4 0

BD = (1/2)FE = (1/2)(23.5) = 11.75

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If B is the midpoint of AC, and AC=8x-20. Find BC<br> AB=3x-1<br> Show all work
exis [7]
First we know that:
AB+BC=AC
now , since B is the midpoint of AC, this means that AB=BC
therefore,
AB+BC=AC can also be written as
AB+AB=AC
3x-1+3x-1=8x-20
6x-2=8x-20
-2+20=8x-6x
18=2x
x=9

therefore:
AB=3(9)-1=27-1=26
AC=8(9)-20=52
BC=AB=26
6 0
4 years ago
Read 2 more answers
I have no idea what to do help
Step2247 [10]

Answer:

8.50(43) + 10.50(6.5)=$433.75

Step-by-step explanation:

4 0
3 years ago
So far this season, Shawn has average 7 out of 11 free throws per game. based on his previous performance, how many free throws
svlad2 [7]
You can set these equal to each other. The numerator is how many free throws Shawn makes and the denominator is total free throws. You can cross multiply and solve for x but it’s way easier to just see that 11*2 = 22 and then multiply 7*2 to get x which is 14. Hope this helped!

4 0
3 years ago
What is the value of f(x) = 2 • 2^x for f(–2)? Will Give brainliest answer!!!
Sedbober [7]
For f(-2), x will equal -2.

Plug the x-value into the equation:

2 \times 2^{-2}

A negative exponent means that the term turns into a fraction, with 1 as the numerator and the positive exponent as the denominator. 
Solve 2^(-2):

2^{-2} =  \frac{1}{2^{2}} =  \frac{1}{4}

Solve the problem:

2 \times \frac{1}{4} = \frac{1}{2}

f(-2) will equal 1/2.
5 0
4 years ago
PLEASE HELP ASAP THANK YOUUUU
34kurt

Answer:

972π m³

Step-by-step explanation:

given

in a sphere

radius (r) = 9 m

Volume (V ) = ?

so we know

The formula for the volume of a sphere is V = 4/3 πr³.

now

V = 4/ 3 * π * 9³

V = 972π m³

hope it helps :)

8 0
3 years ago
Read 2 more answers
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