Explain how to do the factor tree for 75

Answers

Answer 1
Answer: separate 75 into two numbers. Lets use 15 and 5. 15 can be reduced into 3 and 5, while 5 cannot be reduced. The remaining numbers you have will be 5, 5, and 3. 
 
                   75
                   /  \
                 15   5
                 / \
                3  5

Answer 2
Answer: Like this- . 75 . /. \. . 25. 3 . /. \. . 5. 5. So the factors are- 3x5x5. Hope I helped!

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Given right triangle QRS, what is the value of sin(30°)? A.)sq rt of 3/ 3
B.) 1/2
C.) sp rt of 3/2
D.) 2/1

Answers

Sin of an angle is the side opposite over it divided by the hypotenuse.
Sin = opposite/hypotenuse
Sin = 5/10
Sin = 1/2

B.) 1/2 

Hope this helps :)

Answer:

1/2

Step-by-step explanation:

PLZ HELP URGENT!!!!!!!!!f(x) = -3x2 + 2x - 7


f(-1) =

A) -12
B) -8
C) -6
D) 0

Answers

Is that - 3x times 2?

Which shows a correct order to solve this story problem? Gina used 3.2 ounces of strawberry jelly and 4.7 ounces of raspberry jelly in her recipe. She made the same recipe 4 times.

How much jelly did Gina use altogether?

A.
Step 1: Add the weights of the two jellies.
Step 2: Divide that sum by 4.

B.
Step 1: Subtract the weight of the strawberry jelly from the raspberry jelly.
Step 2: Multiply that difference by 4.

C.
Step 1: Add the weights of the two jellies.
Step 2: Multiply that sum by 4.

D.
Step 1: Subtract the weight of the strawberry jelly from the raspberry jelly.
Step 2: Divide that difference by 4.

Answers

Answer is C

3.2 oz + 4.7oz = 7.9 oz * 4 = 31.6oz total

Hello! I graduated in 2008 but forgot how to solve multiplication. It's been so long. However I want to be refreshed on solving 44•12

Answers

To do this you first have to set this up vertically.
First you multiply through with the 2 (44×2=88). Then next, you have to multiply through with the 1 (44×1=44) But since this is the second line, you have to add the 0 to the end (440).
Now you simply add 88+440=528.

A piece of cloth is folded into a square with a side length measuring x inches. When it is unfolded, it has an area of x2 + 27x + 162 square inches.Which could be the dimensions of the rectangular piece of cloth when it is unfolded? Remember, the area of a rectangle can be determined using the formula A = lw.

length = (x + 9) inches and width = (x + 3) inches
length = (x − 3) inches and width = (x − 9) inches
length = (x + 18) inches and width = (x + 9) inches
length = (x − 9) inches and width = (x − 18) inches

Answers

we have

x^(2) + 27x + 162

Using a graph tool------> to resolve the second order equation

the solution is

x=-18\n x=-9

so

x^(2) + 27x + 162=(x+18)*(x+9)

therefore

the answer is the option

length = (x + 18) inches and width = (x + 9) inches

Hello,

(x+9)(x+3=x²+21+27 No
(x-3)(x-9)=x²-12x+27 No

(x+18)(x+9)=x²+27x+162 Yes
(x-9)(x-18)=x²-27x+162 No

Answer C



How do I do a question containing powers that are improper fractions?say for example 81 to the power of 3/2. thx

Answers

( 81 )^ ( 3 / 2 ) = ( 3 ^ 4 )^ ( 3 / 2 ) = 3 ^( 4 * 3 / 2 ) = 3 ^ 6 = 729.
81^{\tfrac{3}{2}}=\n(3^4)^{\tfrac{3}{2}}=\n3^{4\cdot\tfrac{3}{2}}=\n3^(2\cdot3)=\n3^6=\n729