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4 years ago

WILL GIVE BRAINLIEST TO FIRST CORRECT ANSWERS!

Mathematics

1 answer:

fgiga [73]4 years ago

7 0

it is b because it will be 4 over 5 for RST.

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What is the midpoint of the segment shown below

Andru [333]

3——. -3

Hope it helps~~

7 0

3 years ago

Eleven decreased by a number is at most nineteen<br><br> Pls make it into a expression

mezya [45]

Answ

n-11 ≤ 19

or 11-n ≤ 19

Step-by-step explanation:

Mrk ME BRAINLIEST PLZZZZZZZZZZZZ

4 0

3 years ago

Please help me with 1 and 2 and show me how you get it and the answers

FromTheMoon [43]

Step-by-step explanation:

1. a²=25²-15²

a²=(25-15)(25+15)

a²=10×40

a=20

2.b²=10²-6²

b²=(10-6) ×(10+6)

b²=4×16

b=8

6 0

3 years ago

If the median were to be calculated at 82.5 degrees, then would the feasible mean be 81.6?

dmitriy555 [2]

I think your right,It would be 81.6.
Hope this helps. :D

7 0

4 years ago

HELP PLEASE

mario62 [17]

Answer:

26.4

Step-by-step explanation:

<u>Law Of Cosines:</u>

$cos(A)=\frac{b^2+c^2-a^2}{2bc}$

This should work for any side. This can generally be thought as:

$cos(\text{angle}) = \frac{\text{sum of squares of two other sides-opposite side squared}}{\text{2 times the product of the other two sides}}$

If this is too confusing here's the formula for the other sides (which is essentially the same, just different variables)

$cos(B)=\frac{a^2+c^2-b^2}{2ac}$

$cos(C) =\frac{a^2+b^2-c^2}{2ab}$

Anyways now just plug in the known values into the equation

$cos(A)=\frac{4^2+6^2-3^2}{2(6)(4)}\\$

Square and multiply values

$cos(A)=\frac{16+36-9}{48}$

Add the values in the numerator

$cos(A)=\frac{43}{48}$

Take the inverse of cosine on both sides

$A=cos^{-1}(\frac{43}{48})$

calculate arccosine (inverse cosine) using a calculator

$A\approx 26.384$

Round to nearest tenth

$A\approx26.4$

7 0

2 years ago

WILL GIVE BRAINLIEST TO FIRST CORRECT ANSWERS!​

WILL GIVE BRAINLIEST TO FIRST CORRECT ANSWERS!