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3 years ago

Evaluate 9 m+7 n if m=-7 and n=4

Mathematics

1 answer:

olga2289 [7]3 years ago

5 0

Answer:

-35

Step-by-step explanation:

9m+7n

m=-7

n=4

Plug the numbers into the equation

9(-7)+7(4)

-63+28

=-35

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Solve the matrix equation. The inverse of the coefficient matrix is given. EXPLAIN. The answer's D. (2/9,-4/3,-1/3)

Lerok [7]

Answer:

Right answer is D number

4 0

3 years ago

What is the value of x?

myrzilka [38]

Answer:

Step-by-step explanation:

∠VRW and ∠TRS form a pair of vertical angles then they are congruent

therefore

3x = x + 40

⇔

2x = 40

⇔

x = 20

5 0

3 years ago

What is a developing nation?

SCORPION-xisa [38]

Answer:

C.) (I think you meant to put c here) State with little or no economy

Step-by-step explanation:

This one was very confusing because I was beginning to think the answer could possibly be D as well. However, based on background knowledge of many developing countries in the previous century and also the present, many nations are still classified as developing despite the states being into conflict. Therefore revealing the states don't have to be working together in order to build an economy in order to be classified as a developing nation.

Now without a doubt, I do recall that a developing nation has little to no economy. That statement surely is more accurate due to it providing a fact rather than a hypothesis.

6 0

3 years ago

Read 2 more answers

Showing ALL calculations, whether this statement is valid

choli [55]

Answer:

RM79 608.51

Step-by-step explanation:

First year,

RM505 050.00×5%=RM505 050.00×5/100

=RM25 252.50

second year,

(RM505 050.00+RM25 252.50)×5%=RM530 302.50×5/100

=RM26 515.13

third year,

(RM530 302.50+RM26 515.13)×5%=RM556817.63×5/100

=RM27840.88

three years interest,

RM25 252.50+RM26 515.13+RM27840.88=RM79608.51

I don't know that is R or RM 

if it is R ,sorry

Hope can help!

8 0

3 years ago

In the problem 8^3 - 10 × 5 - 4

Crazy boy [7]

Answer: 458

Simplify

8³=8×8×8

Multiply

8×8×8=512

10×5=50

Subtract

512-50=462

462-4=458

5 0

3 years ago

Read 2 more answers