What is the product? –9x(5 – 2x)

1 answer:

5 0

Use the distributeive propepry
a(b+c)=ab+ac
remember that negative times negtive=positive and posititve tiem snegative is negative so

-9x(5-2x)=
-9x(5)+-9x(-2x)=
-45x+(+18x^2)=
-45x+18x^2
answer is 18x^2-45x

You might be interested in

Write an equation of the line whose slope and y-intercept are respectively:

bezimeni [28]

2 and 7 because it will stay constant

5 0

3 years ago

I not really understand that can you help me please ?<br><br>1.

irina1246 [14]

(7x200)+(7x50)+(7x6)=

4 0

3 years ago

Jessie estimates the weight of her cat to be 10 pounds. The actual weight of the cat is 1375 pounds. Find the percent of error.

Sloan [31]

Answer:

The percent error is 99%

Step-by-step explanation

Estimated weight of cat = 10 pounds

Actual weight of cat = 1375 pounds

We need to find the percent of error.

The formula used is: $Percent\:Error=\frac{|Estimated\:value-Actual\:Value|}{Actual\:Value}\times 100$

Putting values and finding percent of error.

$Percent\:Error=\frac{|Estimated\:value-Actual\:Value|}{Actual\:Value}\times 100\\Percent\:Error=\frac{|10-1375|}{1375}\times 100 \\Percent\:Error=\frac{|-1365|}{1375}\times 100 \\Percent\:Error=\frac{1365}{1375}\times 100\\Percent\:Error=0.99\times 100 \\Percet\:Error=99\%$

So, the percent error is 99%

4 0

3 years ago

Which most closely estimates 387÷19?

steposvetlana [31]

Answer:

the answer is 20 with a remainder of 7

Step-by-step explanation:

hope this helps if not let me know

6 0

2 years ago

Anna has 10 to the 2nd power quarters. Jazmin has 10 to the second power dimes Who has more money, Anna or Jasmine? How much mor

Burka [1]

Anna has more money... We don't have to do messy calculations for this... Both have 10 to the 2nd power "some amount". 10 to the second power is 100. So they both have 100 coins.

A quarter is 25 cents, while a dime is only 10 cents. Since they both have the same amounts of coins, the one with 100 quarters has more money, so Anna has more money than Jasmine.

Now, we need to figure put by how much! 100 quarters is one hundred 25 cent coins. 100*25 = 2500. That is 25 dollars. Whereas, Jasmine has one hundred times 10 cents, which is 1000 cents. This is 10 dollars.

So, Anna has 15 more dollars than Jasmine.

8 0

4 years ago