what category does all these shapes belong to?

Answer:

D

Step-by-step explanation:

hope this helps

Answer:

D) 4x² - 9

Step-by-step explanation:

(2x + 3)(2x - 3)

4x² - 6x + 6x - 9

4x² - 9

Answer:A B C D

Step-by-step explanation:

it is A B C D

Answer:

B

Step-by-step explanation:

Hello!

You look at the table and see what graph matches the data

0-4 = 5

We look for the graphs that of 0-4 at 5

That gives us B or C

We look at the next values

5-9 = 10

We look for the graph that has 5-9 equal to 10

That gives us the answer of B

The answer is B

Hope this helps!

Answer:

B

Step-by-step explanation:

Answer:

The formula to find the surface area of a rectangular prism is A = 2wl + 2lh + 2hw, where w is the width, the l is the length, and the h is the height.Jul 8, 2014

Step-by-step explanation:

Answer:

2.3

Step-by-step explanation:

if u see those parallel lines, the number is always positive

Answer:

1. 1  

2. 1

3. 16/81

4. 3

5. 3

Step-by-step explanation:

Answer:

G

Step-by-step explanation:

First off, we know that Trinity is allowed to watch 420 minutes of television a week, which means that her watch time can be=420, cannot be >than 420 minutes, and can be <than 420 minutes. (in other words, her watch time can be equal to or less than 420 minutes) Because of this, we know that our answer choice must have 420≥. So H and J are out of the question.

Also, we know that each show that she watches is 30 minutes long. Because of this, the next part of our answer is going to be 30s. (I will explain this in the comment section of my post because it's getting a little long)

Therefore, the answer is G: 30s≤420

Answer:

G 30s < 420

Step-by-step explanation:

Trinity can watch 420 min of TV, which is "less than or equal to" but not more than 420 min. Therefore your inequality will be < 420

Next part says each show "s" is 30 min long, so you would multiple 30 times s which would be represented as 30s (think: 1 show is 30(1) =30, 2 shows is 30(2) = 60, 10 shows is 30(10) = 300, etc)

So, put together:

30s < 420 (or 30 min multiplied by 's' number of shows has to be less than or equal to 420)

Answer:

Three terms, which makes this expression a trinomial.

5x²-4x -12

Step-by-step explanation:

(5x + 6)(x-2)

5x² -10x + 6x -12

5x²-4x -12

Answer:

3 terms

Step-by-step explanation:

(5x + 6)(x - 2)

5x² - 10x + 6x - 12

5x² - 4x - 12

3 terms

Answer:

0.18ft.

Step-by-step explanation:

Answer:

We could calculate the range and median.

Answer: 409.23

Step-by-step explanation:  Step 1: If 65% of a number is 266, then what is 100% of that number? Setup the equation.

266

65% = Y

100%

Step 2: Solve for Y

Using cross multiplication of two fractions, we get

65Y = 266 x 100

65Y = 26600

Y = 26600

100 = 409.23

Answer:

B

Step-by-step explanation:

-the base angles are 34, so the total value of both base angles is 68

-an isosceles triangle is equal to 180

-subtract 68 from 180 for the answer, so the equation is 68+x=180

hope this helps, comment in you have a question :)

Answer:

i think its b

Step-by-step explanation:

Answer: It would be Second leg = 15

Step-by-step explanation:

From my understanding, you are supposed to find the second leg of the right triangle by Pythagoras theorem.

Hypotenuse: 25

One leg: 20

Second leg: x

Pythagoras theorem: hypotenuse² = adjacent² + opposite²

c² = a² + b²

25² = 20² + b²

b² = 25² - 20²

b² = 625 - 400

b² = 225

b = √225

b = 15

Therefore, the second leg of the right triangle is 15.

Answer:

53

Step-by-step explanation:

have a nice day

Answer: So, the grades went up 10

Step-by-step explanation:

Answer:

a. 28

b. 6.5

c. 30

Step-by-step explanation:

1% = 80÷100

35% = 0.8×35

1% = 0.65

0.65 × 10 = 6.5

1% = 0.5

60% = 0.5×60

Answer:

28

6.5

30

another way you can get these answers is by cross multiplying. In order to do that you need to identify the percent, the whole (of), and the part (is). In identifying the whole and the part, look for the word is, and the word of. The number that is associated with is either the part or the whole. (There is 6 out of 80, what is the percentage?) always set the percentage out of a hundred.

So from there we set up the proportion:

ONE

(we don't know the part in any of them)

X/80=35/100 (cross multiply by putting the numbers on top of each other for the fractions)

TWO

X/65=10/100

THREE

X/50=60/100

Hope this helps, have a good day and remember to be tiger fierce!! :) (also, sorry that it is late.)

Step-by-step explanation/ Answers

because you have 5% possibilities and a total of 100%. You divide

100 by 5 and then you get 20 so that is for question 5

for question 6 it would be 80 because 100 - 20 is 80

for question 7 it will be 40 because 20 + 20 is 40

hopes this helps

Answer:

Step-by-step explanation:

x = original length of one side

(x-2)² = 20 inches²

x-2 = ±√20 = ±2√5

x = 2±2√5

2-2√5 is an extraneous solution,

so x = 2±2√5 ≈ 6.47 inches

Answer:

1) 1/9^4 or [tex]\frac{1}{9}^4[/tex]

2) 1/3^5 or [tex]\frac{1}{3}^5[/tex]

Step-by-step explanation:

Calculator!

Answer:

Step-by-step explanation:

225

Answer:

22 1/5 miles per gallon

Step-by-step explanation:

Not sure if the answer is correct i think it is 45/2 turn this in to a proper fraction

becuase 1/90 gallons=1/4 miles so

1/4 times 90 again not sure if i correct.

Answer: 24 cubes

Step-by-step explanation:

Answer:28

Step-by-step explanation: