Mathematics High School

Find the area of a semicircle with a diameter equal to 8 meters (use
pi=3.14):*
d=8 m
D

Answers

Answer 1

Answer:

you do 8/2 which is 4, so that is ur radius

you do 3.14*4*4=50.24

there is ur answer!

Step-by-step explanation:

Related Questions

Find the area of the figure below
Please help

Answers

A=bh/2 15x10.3= 154.5/2 the answer is 77.25
Answer: Choice C) 87.55 square cm

============================================================

Explanation:

Rotate the triangle so that the side 17 cm is completely horizontal and the triangle is pointing upward. The 10.3 cm portion is the height. The base and height are always perpendicular to one another.

Area = (base*height)/2

Area = (17*10.3)/2

Area = 87.55 square cm

The sides 12 cm and 15 cm are not needed at all. They might have been put in there as a distraction.

WILL GIVE BRAINLIEST! NEED FAST!
A clinical trial on a new weight loss pill was conducted on 1000 people who weighed between 200 and 210 pounds. If 650 people lost more than 15 pounds in 1 year, which equation can be used as a first step to determine the percent of people in the clinical trial who lost more than 15 pounds in one year?

Answers

Answer:

650=65% of 1000

Step-by-step explanation:

650-600=65 or 65%

I need help please ​

Answers

Answer:

358in

Step-by-step explanation:

Use CAH or Cos()=(adj/hyp)

So Cos(36)=(290/h)

Re-Write the equation as h=(290/cos(36)) to get 358 inches

358. Inc
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What is the function graphed below?
O y= x + 0.5
O y= 2 x + 0.5
O y=x
O y=(0.5)

Answers

Answer:

A.  y= x + 0.5

Step-by-step explanation:

We see that:

y- intercept is b = 0.5, point (0, 0.5) Rate of change is m = 1 as each next value of y is greater by 1.

The function is:

y = mx + by = x + 0.5

Correct choice is A

PLEASSEE HELPPPP HURRRY FIND THE SURFACE AREA HURRRYY

Answers

Answer:

The answer is 48.9 cm^2.

Step-by-step explanation:

Let's find the surface areas of the faces other than the base;

triangle area: b x h / 2

4 x 7 = 28, 28/2 = 14

in this case, there are three faces, so 14 x 3 = 42, and we add that with the base to get 48.9

:) hope this helps!

Answer:

yes

Step-by-step explanation:

hi! i am really confused on this and need answers fast thank you for helping me :) (get full points too)

Answers

Answer:

your answer will be 172.8m³

Step-by-step explanation:

have a nice day!!!

Answer: 22 m

Step-by-step explanation:

I think it's 22 but not sure though.

If Sin ( x + 3° ) = Cos 40° , find x​

Answers

Here you go :).......’

What is the circumference of a circle with a diameter of 2 feet? Use 3.14 for
T.

Answers

Answer:

your answer will be option A. 6.28

Step-by-step explanation:

C=3.14 x 2

C=6.28

hope it helps

Question is in the picture

Answers

Reflection over the y-axis, translation 2 units down

Answer:

The answer is option B, reflected over the y-axis and translated 2 units down.

This relation is linear. {2,-3), (4, -2), (-2,5), (0,4)}
true
false

Answers

Answer:

tru

Step-by-step explanation:

Jet had $63 to spend at Pet Smart. She spent 2/7 of her money on dog bones and the rest on squeaky toys to destroy. How much money she spend on the squeaky toys? (Just type the answer with the proper label, no complete sentence needed).

Answers

Answer:

She spent 45 dollars on squeaky toys.

Step-by-step explanation:

If we divide 63 by 7 we would get 9, then if we multiply that number by 2 for the bones, we are left with 5/7, finally if we multiply the 5 by 9 you would get 45, or 45 dollars.

what value of x makes the polygons below have the same perimeter?

Answers

Answer:

2x and 4x i guess

Step-by-step explanation:

What is the exact volume of the cylinder?
A 32m in
B 64m in
C 123m in
D 512m in

Answers

the answer is 128. you do 4^2 x 8

Answer:

I think the answer is A

Step-by-step explanation:

8x4=32

then A says 32xpi

TEST ANSWER HELPPP PLEASEEE
Fill in the blank with the correct response.

If x is to 4 as 15 is to 6, then x is equal to ? .

Answers

Answer:

Step-by-step explanation:

x/4=15/6

x=4(15)/6

x=60/6

x=10

Which equation represents a line that is perpendicular to the line shown in the graph? (-5,6) (5,2)

Answers

Answer:

Y=5/2x-3

Step-by-step explanation:

The equation's slope is -4/10, which simplifies to -2/5. The reciprical of this, 5/2, is the slope of a perpendicular line. The first possibility you commented is the only one to have this slope.

The first house on one side of a road is number 2. The house number continue in this sequence 2,4,6,8. What is the number of the 40th house on this side of the road?

Answers

Answer: 20

Step-by-step explanation: 40/2

What is the measure of angle B in the triangle?

Answers

Answer:

The measure of angle B in the triangle is 22

Step-by-step explanation:

have a nice day !!

Answer:

m∠B= 22°

Step-by-step explanation:

∴ ∠A+∠B+∠C= 180

→ [tex]120+x+(x+16)=180[/tex]

→ [tex]x+x+16=180-120[/tex]

→ [tex]2x=60-16[/tex]

→ [tex]2x=44[/tex]   ⇒ [tex]\frac{44}{2} =22[/tex]

So, m∠x°=22°

[tex]------------[/tex]

hope it helps...

have a great day!!

A factory makes rods by cutting plastic pipes that are 5 feet long into 13 rods. How long is each rod? I NEED IT NOWW

Answers

Answer:

0.3846 feets

Step-by-step explanation:

Given that :

Full length of rod = 5 feets

Number of equal length rod cut from full length rod = 13

Length of each rod cut :

Full length of rod / number of equal length rod cut

5 feets / 13

= 0.3846 feets

Need 1- 5 done by 7 hours if you can’t do them at least do one and show me how you got the answer thank you :)

Answers

Answer:

For #5: There are 3 children and 4 adults.

Step-by-step explanation:

Let x= number of children

y= number of adults

y = x + 1

x + y = 7

x + (x+1) = 7

x + x + 1 = 7

2x + 1 = 7

2x = 7 - 1

2x = 6

x = 6/2

x = 3

y = x + 1

y = 3 + 1

y = 4

Therefore, the number of children is 3 and the adults are 4.

PLEASE ANSWER THIS IF YOU KNOW IT!! AND HURRY!!​

Answers

Answer:

The shorter leg, s, is the geometric mean between h and m

The longer leg, b, is the geometric mean between h and n

Step-by-step explanation:

By the right triangle geometric mean theorem, we have;

The altitude of a right triangle, 'h', which intersects with the hypotenuse side of the right triangle at a point such that it creates two segments, 'a' and 'b' on the hypotenuse side , then we have;

h = √(a·b)

Therefore, we have;

Description      [tex]{}[/tex]                                                                                 Proportion

The altitude of ΔAYES is the geometric mean between m and n   [tex]\dfrac{m}{a} =\dfrac{a}{n}[/tex]

a² = m·n → a = √(m·n)

The shorter leg, s, is the geometric mean between h and m   [tex]\dfrac{m}{s} =\dfrac{s}{h}[/tex]

s² = m·h → s = √(m·h)

The longer leg, b, is the geometric mean between h and n   [tex]\dfrac{n}{b} =\dfrac{b}{h}[/tex]

b² = n·h → s = √(n·h)

PLZ HELP ME!!!
::::::::::::::::::::::::::::::

Answers

Answer:

-2

Step-by-step explanation:

-3 -1 / 7-5 = -4/2 = -2

4 is 7/10

hope this helps

ANSWER = Negative TWO

Find 3/7 of 1/5. A 4/12. B 3/35 C 8/35 D 22/35

Answers

Answer:

c

Step-by-step explanation:

PLS HELP ASAP!!!!

Fifty-two of 80 marbles are red. What percent of the marbles are not red?

Answers

Answer:

Do the math.

Step-by-step explanation:

52/80

.65

65%

There you go!

Answer:

28/80 ×100

=35%

hope it helps

Please I need help from anyone :(

Answers

2=8X

Step-by-step explanation:

I got this online XD

What are the coordinates of L'?
A. L'(1,0)
B. L'(0, -1)
O c. L'(0, 1)
D. L'(-1,0)

Answers

Answer:

the answer from what I see in the picture is C

what is this answer -2+7(-4)

Answers

Answer:

= -30

Step-by-step explanation:

−2+(7)(−4)

=−2+−28

=−30

pls help me plesa eimportant so important thank!~

Answers

Answer:

R'(40, -8)

A'(-16, 32)

T'(48, 24)

Step-by-step explanation:

For this question, simple multiply all the points by 8.

? * 2/3 = 1

1÷ 2/3 = ?

Answers

Answer:

-9

Step-by-step explanation:

becuase 5/8/6=-9

A circle has the equation
(x-2)2 + (y+4)2 = 169. Which of the following is NOT a point on the circle?
a. (2,9)
b. (-10,1)
c. (-11,-4)
d. (5,12)

Answers

Answer:

d

Step-by-step explanation:

A hawk takes flight from a mountain peak and flies 800 meters west. Then it takes a turn and flies 200 meters south. What is the distance and direction of the hawk from the mountain peak?

Answers

Answer:

the hawk has flow 824.62 meters southwest of the mountain peak.

Step-by-step explanation:

In order to find the distance we need to use the Pythagoras theorem

d^2 = 800^2 + 200^2

d= 824.6 m

we can find the direction by using the eq for a tangent

he opposite side is 200 m and the adjacent side is 800m

tan theta = opposite / adjacent

theta = arc tan (800/200)

The hawk is at a distance of 824.6m flying at an angle 76 degrees NE of the mountain peak.

The final location will be southwest of the mountain peek.

a2+b2=c2

a = 200

b= 800

c = √(2002+8002) = 824.62

So the hawk has flow 824.62 meters southwest of the mountain peak.

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