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2 years ago

Use the Distributive Property to expand (−2x−7)4

Mathematics

1 answer:

Westkost [7]2 years ago

5 0

Answer:

Step-by-step explanation:

4(-2x - 7)

4*-2x -8x

4*-7 = -28

-8x - 28

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Find the sum of all numbers from 150 to 200 which are divisible by7

podryga [215]

Step-by-step explanation:

The sum is 1225

Solution :

The numbers from 150 to 200 divisible by 7 are 154,161 ,168,…., 196

Here, a=154,d=7a=154,d=7 and tn=196tn=196

tn=a+(n−1)dtn=a+(n-1)d …(Formula )

∴196=154+(n−1)×7∴196=154+(n-1)×7 …(Substituting the values )

∴196−154=(n−1)×7∴196-154=(n-1)×7

∴427=n−1∴427=n-1 ∴n−1=6∴n-1=6 ∴n=7∴n=7

Now, we find the sum of 7 numbers.

Sn=n2[t1+tn]Sn=n2[t1+tn] ...(Formula )

=72[154+196)=72[154+196)

=72×350=72×350

=7×175=7×175

=1225

8 0

3 years ago

Simon is doing a card trick using a standard 52 card deck. He shows his friend a card, replace it, and then shows his other frie

Elza [17]

It would be 39/50 then 13/50 sry I didn't have time to simplify it.

Hope this helps.

5 0

3 years ago

Riley received financial assistance to pay for his college education. After he graduates, he will have to pay back the amount of

e-lub [12.9K]

Answer:

student loan

Step-by-step explanation:

read then re read

5 0

3 years ago

Read 2 more answers

Find the volume of the following prism using the formula V = Bh.

Natali [406]

Answer:

1001.

Step-by-step explanation:

1. if B=11*13; h=7, then

2. V=11*13*7=1001.

6 0

3 years ago

Carlotta subscribes to the HotBurn music service. She can download no more than 12 song files per week. Carlotta has already dow

UNO [17]

Answer:

Inequality: $x+10\leq 12$

Inequality solved: $x\leq 2$

The graph is attached.

Step-by-step explanation:

You need to remember the meaning of the inequalities symbols:

: Less than.

$>$ : Greater than.

$\leq$ : Less than or equal to.

$\geq$ : Greater than or equal to.

Let be "x" the number of more songs Carlotta can download.

According to the information given in the exercise, she can download no more than 12 song files per week. This indicates that you must use the symbol $\leq$ .

Since she has already downloaded 10 song files this week, you can write the following inequality that represents this situation:

$x+10\leq 12$

In order to solve it, you must subtract 10 from both sides:

$x+10-10\leq 12-10\\\\x\leq 2$

Plot this result on a number line.

Since the symbol of the inequality is $\leq$ , the dot must be filled (Observe the number line attached).

8 0

3 years ago