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Vika [28.1K]
3 years ago
14

Please help I beg you you will get marked branliest asap

Mathematics
1 answer:
Bad White [126]3 years ago
4 0

Answer:

its D I think........ not 100% sure

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Which angle number represents FCB?<br> delta math
WITCHER [35]

Answer:

hi

Step-by-step explanation:

6 0
3 years ago
Factor mn+5m-3n-15.
Lelechka [254]
mn+5m-3n-15=\boxed{m}\cdot n+\boxed{m}\cdot5\boxed{-3}\cdot n\boxed{-3}\cdot5\\\\=\boxed{m}(n+5)\boxed{-3}(n+5)=\boxed{\boxed{(n+5)(m-3)}}
5 0
3 years ago
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If 1/a+1/b+1/c= 1/a+b+c than prove that 1/a7+1/b7+1/c7= 1/a7+b7+ c7​
Rainbow [258]

Step-by-step explanation:

1/a + 1/b + 1/c = 1/(a+b+c)

=> 1/a + 1/b = 1/(a+b+c) -1/c

=> (b+a)/ab = {c - (a+b+c)/c(a+b+c)

=> (a+b)/ab = -(a+b)/(ac+bc+c^2)

=> 1/ab = -1/(ac+bc+c^2)

=> -ab = ac+bc+c^2

=-c^2 = ab+bc+ca

Similarly we can show that

-b^2 =ab+bc+ca and -c^2 = ab+bc+ca

So a=b=c. since -a^2 = -b^2 = - c^2

Then 1/a + 1/b + 1/c = 1/(a+b+c) => 3/a= 1/3a

=> 1/a^5 + 1/b^5 + 1/c^5 =3/a^5=(( 3/a )(1/a^4)

= 1/3a × 1/a^4 = 1/3a^5 = 1/(a^5 +b^5+c^^5)

Hope it help

4 0
3 years ago
Read 2 more answers
Find the area of a triangle with the vertices (5,4) (9,7) (1,6)
andreev551 [17]

u multiply each number with the number diagonal to it!

the area is half of the products of the numbers which were multiplied to the numbers SE to them minus the products of numbers which were multiplied to numbers southwest to them

7 0
4 years ago
You loaned a friend $100 and will charge him 5% annual simple interest when he pay it back
Arturiano [62]

The amount of interest after 3 years will be $15.

The complete question is given below.

You loaned a friend $100 and will charge him 5% annual simple interest when he pay it back. What is the amount of interest after 3 years?

<h3>What is simple interest?</h3>

Simple interest is the concept that is used in many companies such as banking, finance, automobile, and so on.

The interest is given as

I = (P × R × T) / 100

Where, P is the initial amount, R is simple interest rate, and T is the time.

We have

P = $100

R = 5%

T = 3 years

Then the interest will be

I = (100 × 5 × 3) / 100

I = $15

More about the simple interest link is given below.

brainly.com/question/2793278

#SPJ1

7 0
2 years ago
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