can someone explain :( and answer it plz

Answer:

1. 12 m

2. 15.2 ft

3. 22 km

4. 10 ft

Step-by-step explanation:

Diameter is the radius multiplied by itself to find the entire length of a circle

Answer:

Step-by-step explanation:

f(x) = 1 - x²

g(x) = [tex]\sqrt{11-4x}[/tex]

[tex](\frac{f}{g})(x)=\frac{f(x)}{g(x)}[/tex]

[tex](\frac{f}{g})(x)=\frac{1-x^2}{\sqrt{11-4x}}[/tex]

[tex](\frac{f}{g})(-1)=\frac{1-(-1)^2}{\sqrt{11-4(-1)}}[/tex]

             = [tex]\frac{1-1}{\sqrt{15}}[/tex]

             = 0

(g + f)(x) = g(x) + f(x)

             = [tex]\sqrt{11-4x}+1-x^2[/tex]

(g + f)(2) = [tex]\sqrt{11-4(2)}+1-(2)^2[/tex]

             = [tex]\sqrt{3}-3[/tex]

(g - f)(x) = g(x) - f(x)

            = [tex]\sqrt{11-4x}-(1-x^2)[/tex]

            = [tex]\sqrt{11-4x}-1+x^2[/tex]

(g - f)(-1) = [tex]\sqrt{11-4(-1)}-1+(-1)^2[/tex]

             = [tex]\sqrt{15}[/tex]

(g . f)(x) = g(x) × f(x)

            = [tex](\sqrt{11-4x})(1-x^2)[/tex]

(g . f)(2) = [tex](\sqrt{11-4(2)})(1-(2)^2)[/tex]

             = [tex]\sqrt{3}(-3)[/tex]

             = -3√3

Answer:

0

3-3

15

3(-3)

Step-by-step explanation:

easier to read

Answer:

maybe 3

Step-by-step explanation:

Answer:

don't download thattttttttttttttt

Answer:

third side of. TRAINGLE is hypotenuse

=√(9²+7²)=11.04

therefore given figure is rectangle

dotted line is hypotenuse

=√(9²+11.04²)=14.24 unit

Answer:

4th one: A kite is the answer.

Answer:

In the case of 4 tickets it can be possible

Step-by-step explanation:

Let us assume the number of tickets be t

Now as per the question the equations would be

For you  = t + $8

For your friend = t + $12

In the case when you both spend the same amount so the above equations would be equivalent to each other

t + $8 = t + $12

So here the tickets would be 4 so this is possible that you both spend the same amounts

Answer

the answer is -9≤x≤9

Answer:

x = (-9,9)

Step-by-step explanation:

|x |< 9 - seperate the inequality into 2 possible cases

1. x<9, x>0   -x<9, x<0

find the intersection

x = (0,9)    -x<9, x<0

find the intersection again

x = (0,9)   x = (-9,0)

find the union

x = (-9,9)

Answer:

A) Leo comió más, ya que comió 1/2 de la pizza.

B) Joel y Evelio comieron menos, ya que comieron 1/8 de la pizza.

C) Asimismo, Joel y Evelio comieron igual, ya que cada uno comió 1/8 de la pizza.

D) En total, entre todos comieron una pizza.

Step-by-step explanation:

Dado que cuatro amigos compraron una pizza, de la cual Leo se comió 1/2, Adán 1/4, Joel 1/8 y Evelio se comió lo que sobró, para determinar quién comió más, quién comió menos, quiénes comieron igual y cuántas pizzas se comieron en total se deben realizar los siguientes cálculos:

1/2 + 1/4 + 1/8 + X = 1

4/8 + 2/8 + 1/8 + X = 1

7/8 + X = 1

X = 1 - 7/8

X = 1/8

Answer:

Add the area of the rectangle with the semicircle.

10x4 + 0.5(3.14)(25)

40+39.25

79.25

So the answer is C. 79.

Let me know if this helps!

Answer:

4

Step-by-step explanation:

Answer:

rectangle: 30 in^2

triangle:  12 in^2

composite: 42 in^2

Step-by-step explanation:

area of a rectangle: length times width

area of a triangle: [tex]\frac{AB}{2}[/tex]

composite area: break the area up by shapes you can find the area of, then add it back together

Answer:

No correct answer

Step-by-step explanation:

volume of a cylinder= pi*r2*height

making height the subject of formula

height = volume/pi*r2

height= 8.478/pi*15*15 = 0.012in

Answer:

3

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

Answer:

15 3/10 years

Step-by-step explanation:

Ballio age = 12 4/5

Bill's age = Ballio's age + 1 1/6

Bills age = 12 4/5 + 1 1/6 = 64/5 + 7/6 = (384 + 35) / 30 = 419 / 30 = 13 29/30

Jane's age :

13 29/30 + 1 1/3

419 / 30 + 4 /3 = (419 + 40) / 30 = 459 / 30 = 15 9/30

15 9/30 = 15 3/10 years

Answer:

[tex]-4\ \text{feet/hour}[/tex]

Step-by-step explanation:

Level of water at 4 PM is 10 feet.

Level of water at 8 PM is 2 feet.

Time duration in which water level is measured is [tex]8-4=4\ \text{hours}[/tex]

The change of the level of water in the given time duration is [tex]2-10=-8\ \text{feet}[/tex]

The rate of change would be

[tex]R=\dfrac{-8}{4}=-4\ \text{feet/hour}[/tex]

The constant rate of change of the water is [tex]-4\ \text{feet/hour}[/tex].

The minus sign indicates that the water level is reducing.

Answer:

for 1 person: 188

for 2 people: 94

etc.

Step-by-step explanation:

divide 188 by the number of people

Answer:

2

Step-by-step explanation:

2+2+4=8/4=2

Answer:

2!

Step-by-step explanation:

Answer:

y=2x-2

Step-by-step explanation:

Answer:

Step-by-step explanation:

To find the line y=mx+b we need two points. I choose (0,-2) and (1,0)

Since y=mx+b where m=slope and b=y intercept (value of y when x=0)

We have the point (0,-2) so we know b=-2

Now we find the slope which is defined as

m=(y2-y1)/(x2-x1), in this case

m=(0-(-2))/(1-0)

m=2, so the line is

y=2x-2

Answer:

A. 4:16

Step-by-step explanation:

4*1: 4*4

4:16

Answer:

A

Step-by-step explanation

a trick you can use is to divide

$98×6/100

sales tax =$5.88

$98+$5.88

total cost =$103.88

Answer:

Step-by-step explanation:

                                   Males                 Females    Total

Soccer                           19                          31             50

basketball                     21                           29           50

Total                              40                          60         100

Number of males Whose favorite sports is soccer = 50 - 31 = 19

Number of females Whose favorite sports is basket ball = 50 - 21 = 29

Part B)

B.Equal number of people like soccer and basketball. - True

C. More females like soccer   - True

Answer:

Quick question, did you find the answer?

Because we know what x is, we plug in 7 to the expression.

7+3<9

Since 7+3 is 10, then the new expression is 10<9.

I have no idea if this is a true/false question, because this statement is false.

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sorry if this doesn't help

Answer:

-2/3

Step-by-step explanation: