I need help with question 3 part B please !

Answer:

Amplitude = 5.5 units

Domain = All Real Numbers

Range = [-11,11]; {y | -11 ≤ y ≤ 11}; greater than or equal to -11 and less than or equal to 11.

Answer:

Step-by-step explanation:

The answer is A U just did that on Khan academy

Answer: A

Step-by-step explanation:

Answer:

2.5

Step-by-step explanation:

Answer:

5 + x = 7.5

x = 7.5 - 5

x = 2.5

Step-by-step explanation:

•°•°•°•°•°•°•°•°•

Answer:

(x-4) (x+1)

step by step explanation:,

Answer:

A

Step-by-step explanation:

its a

Answer:

C) 2y = x + 4

Step-by-step explanation:

all other functions include x²

Answer:

i. The ratio of the areas of the two triangles is 5:8.

ii. The area of the larger triangle is 24 in².

Step-by-step explanation:

Let the area of the smaller triangle be represented by [tex]A_{1}[/tex], and that of the larger triangle by [tex]A_{2}[/tex].

Area of a triangle = [tex]\frac{1}{2}[/tex] x b x h

Where; b is its base and h the height.

Thus,

a. The ratio of the area of the two triangles is:

[tex]\frac{area of the smaller triangle}{area of the larger triangle}[/tex]

Area of smaller triangle = [tex]\frac{1}{2}[/tex] x b x h

                                       = [tex]\frac{1}{2}[/tex] x 5 x h

                                       = [tex]\frac{5}{2}[/tex]h

Area of the lager triangle = [tex]\frac{1}{2}[/tex] x b x h

                                           = [tex]\frac{1}{2}[/tex] x 8 x h

                                           = 4h

So that;

Ratio = [tex]\frac{\frac{5}{2}h }{4h}[/tex]

         = [tex]\frac{5}{8}[/tex]

The ratio of the areas of the two triangles is 5:8.

b. If the area of the smaller triangle is 15 in², then the area of the larger triangle can be determined as;

[tex]\frac{area of the smaller triangle}{area of the larger triangle}[/tex] = [tex]\frac{5}{8}[/tex]

[tex]\frac{15}{A_{2} }[/tex] = [tex]\frac{5}{8}[/tex]

5 [tex]A_{2}[/tex] = 15 x 8

       = 120

[tex]A_{2}[/tex] = [tex]\frac{120}{5}[/tex]

    = 24

The area of the larger triangle is 24 in².

Answer:4

Step-by-step explanation:

Answer:

There's 4 basketballs.

2 + 2 = 4

Answer:

the answer is 168 is the answer

Answer:

[tex]\left \{ {{x<2} \atop {y>8}} \right.[/tex]

Step-by-step explanation:

Answer:

A polygon that has 7 sides.

Step-by-step explanation:

S=(n-2)*180

n representing the sides

plug in each one into the formula and see which one = 900 degress.

Answer:

D

Step-by-step explanation:

becuz i said so

Answer:

60

Step-by-step explanation:

This is 4x15.

60 Burgers.

Step-by-step explanation:

[tex]0 \leqslant b \leqslant - 4[/tex]

it should look like that

Answer:

$3.80

Step-by-step explanation: :)

Answer:

Monday - 4 hours

Wednesday - 14 hours

Step-by-step explanation:

'h' = hours worked on Monday

'2 + 3h' = hours worked on Wednesday

h + 2 + 3h = 18

4h = 16

h = 4  (Monday)

18 - 4 = 14 (Wednesday)

Answer:

486

Step-by-step explanation:

The solid is a cube. The faces of a cube are 6 congruent squares.

side = 9 ft

surface area = 6 * side²

SA = 6 * (9 ft)²

SA = 486 ft²

Answer:

3.13π

Step-by-step explanation:

One plane is a quarter of a semi-circle, since the semi-circle is split into four equal parts. One quarter of a semicircle is one eighth of a circle, so find the are of a circle with diameter 10ft, and divide by 8:

Diameter is half the radius, so the radius is 5ft.

Area of a circle  = π(radius)²

=5²π

=25π.

We're looking for an eigth of the circles area so: 25π/8 = 3.125π≈3.13π

Answer:

1/2Bh

Step-by-step explanation:

u never said we had to answer

Answer:

16/13

Step-by-step explanation:

the error is when it was divided, one of the fractions should be reversed to be multiplied

4 ÷ 13

7. 28

4 × 28 ,like this

7. 13

= 112 ,divide both by 7

91

= 16

13

Answer:

B

Step-by-step explanation:

College Board

Answer:

The last answer choice

Step-by-step explanation:

Interpretation of internet users

Middle East - about 100 million

North America - about 250 million

Europe - about 500 million

Asia - over 1 billion

Now lets look back at the question.

If Africa has 170 million internet users, according to the graphs, which statement is true.

"Africa has fewer users than the middle east"

This is false as Africa has 170 million users whereas The middle east has about 100 million users

170 mil > 100 mil therefore the statement is false

"Africa has more users then Asia"

This is also false as Asia has the most internet users at 1 billion

Africa has no where near as many users at 170 million users therefore the statement is false

"Africa has more users than Europe but fewer than Asia."

We have already identified that Africa has fewer users than Europe so this one could be it if the other part is true.

"Africa has more users than Europe" This is false as Europe has 500 million internet users while Africa only has 170 million users

Therefore this statement is false

"Africa has more users than the Middle East but fewer users than North America."

Africa has more internet users than the Middle East ( 170 mil > 100 mil ) and fewer users than North America ( 250 mil > 170 mil )

therefore this is the correct statement

Answer: 45

Step-by-step explanation:

Solution for What is 45 percent of 100:

45 percent * 100 =

(45:100)* 100 =

(45* 100):100 =

4500:100 = 45

Now we have: 45 percent of 100 = 45

Question: What is 45 percent of 100?

Percentage solution with steps:

Step 1: Our output value is 100.

Step 2: We represent the unknown value with $x$x​.

Step 3: From step 1 above,$100=100\%$100=100%​.

Step 4: Similarly, $x=45\%$x=45%​.

Step 5: This results in a pair of simple equations:

$100=100\%(1)$100=100%(1)​.

$x=45\%(2)$x=45%(2)​.

Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both

equations have the same unit (%); we have

$\frac{100}{x}=\frac{100\%}{45\%}$

100

x​=

100%

45%​​

Step 7: Again, the reciprocal of both sides gives 45

$\frac{x}{100}=\frac{45}{100}$

x

100​=

45

100​​

$\Rightarrow x=45$⇒x=45​

Therefore, $45\%$45%​ of $100$100​ is $45$

Answer:

40

Step-by-step explanation:

I like to find common factors.

45% and 18 are both divisible by 9.

so

45% ÷ 9 = 5%

18 ÷ 9 = 2

2 is equal to 5%

100% ÷ 5% = 20

so

20 × 2 = 40

100% = 40.

x=8

Step-by-step explanation:

the value of x is 8

so your answer is x=8

Onomatopoeia: Imitate the sounds they describe.

If ur trying to find the rate its 12.7252%

Step-by-step explanation:

Answer:

1/8(smallest), 3/4(greatest)

Step-by-step explanation:

3/8=0.375

1/4=0.250

1/8=0.125

1/2=0.500

3/4=0.750

5/8=0.625