All categories

3 years ago

When a= -5, b = -2 and c=1. a(b+c) is?

Mathematics

1 answer:

seropon [69]3 years ago

8 0

Substitute

(-5)((-2) + (1))

(-5)(-1)

5

You might be interested in

What number is 12 more than 43

Nata [24]

55. If it says 12 more, you add 12 to 43 to get 55.

4 0

3 years ago

Read 2 more answers

Can somebody prove this mathmatical induction?

Flauer [41]

Answer:

See explanation

Step-by-step explanation:

1 step:

n=1, then

$\sum \limits_{j=1}^1 2^j=2^1=2\\ \\2(2^1-1)=2(2-1)=2\cdot 1=2$

So, for j=1 this statement is true

2 step:

Assume that for n=k the following statement is true

$\sum \limits_{j=1}^k2^j=2(2^k-1)$

3 step:

Check for n=k+1 whether the statement

$\sum \limits_{j=1}^{k+1}2^j=2(2^{k+1}-1)$

is true.

Start with the left side:

$\sum \limits _{j=1}^{k+1}2^j=\sum \limits _{j=1}^k2^j+2^{k+1}\ \ (\ast)$

According to the 2nd step,

$\sum \limits_{j=1}^k2^j=2(2^k-1)$

Substitute it into the $\ast$

$\sum \limits _{j=1}^{k+1}2^j=\sum \limits _{j=1}^k2^j+2^{k+1}=2(2^k-1)+2^{k+1}=2^{k+1}-2+2^{k+1}=2\cdot 2^{k+1}-2=2^{k+2}-2=2(2^{k+1}-1)$

So, you have proved the initial statement

4 0

4 years ago

How do you convert 24411.41178 to money form?

cricket20 [7]

In money form there can’t be more than two decimal places so it’s $24,411.41

3 0

3 years ago

(1,5) (-2,-2) slope?? help im dum

jek_recluse [69]

Answer:

Slope is 7/3

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Help pls!! :< I'll give brainliest!

stich3 [128]

It is the last one because if you go 3 left you have to change the sign to a positive (but it is still a negative) and the 2 remain the same sign so it’s h(x-3)-2

4 0

3 years ago