Number 1 please ITS URGENT HELP PLSPLS

Answers

Answer 1

Answer:

Answer:

The area of B is 8 cm²

Step-by-step explanation:

From the diagram, we can tell that the scale factor is 2 because the length of A is 6 cm and the length of B is 12 cm so the scale factor is 2. Since diagram A's area is 4 cm², all we need to do is multiply the diagram A's area by 2. That gives diagram B's area which is 8 cm²

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What is the sum of the polynomials?(7x3 – 4x2) + (2x3 – 4x2)
5x3
9x3
5x3 – 8x2
9x3 – 8x2

Answers

Answer: Last option is correct.

Step-by-step explanation:

Since we have given that

$7x^3-4x^2+2x^3-4x^2$

We need to find the sum of the polynomials:

So, we first collect the like terms:

$7x^3-4x^2+2x^3-4x^2\n\n=7x^3+2x^3-4x^2-4x^2\n\n=9x^3-8x^2$

Hence, the sum of polynomials is $9x^3-8x^2$

Therefore, Last option is correct.

9x^3 - 8x^2 is the answer. to solve this you must distribute the sign across each parenthetical and then add the like terms (all cubed x variables added to cubed variables and all squared x variables added to squared variable)

Find the new price for the markdown. Round to the nearest cent if necessary. $12.99 marked down 25%

Answers

$9.74

I like to do these equations backwards and multiply the first number by the opposite of it. ( think 1- the percent as a decimal) however, you can do this by converting the percent into a decimal and then subtracting that from the original number.

Have a great day!

A circle has a radius of 11 cm. What is the approximate area of the circle? Use 3.14 to approximate pi. Write the answer to the nearest hundredth.

Answers

area of a circle is pi x r x r
then you substitute the numbers in
therefore you would get 3.14 x 11 x 11 = 379.994
to the nearest hundredth degree would to 379 cm squared because you are finding the area so you put a small 2 above the cm
the person above has done it wrong as they have halved the radius but you only have the diameter to get the radius and they have used the wrong equation

Which is a point 6units to the left of 4

Answers

-2 i believe, have a great day :)

Allison has 6 blue pencils and 10 yellow pencils.sadie has 24 pencils that are either blue or yellow.the ratio of blue pencils to yellow pencils is the same for both allison and sadie.how many blue pencils and yellow pencils does sadie have?