Question

Which is closest to the area of a circle with a diameter of 19 meters?

A.
59.7 square meters

B.
29.8 square meters

C.
283 square meters

D.
890 square meters

Answer 1

i forgot the formula

Answer 2

compute
\[\pi\times 19^2\]

Answer 3

go with the decimal approximation here
http://www.wolframalpha.com/input/?i=pi*19^2

Answer 4

1133.54

Answer 5

the answer is A.

Answer 6

general fromula is \(A=\pi r^2\)

Answer 7

pi x radius^2

Answer 8

whoa nelly did i ever make a mistake!

Answer 9

radius = half of diameter.

Answer 10

the diameter is 19 so the radius is \(9.5\) half of it !!

Answer 11

so a?

Answer 12

http://www.wolframalpha.com/input/?i=pi*%289.5%29^2

Answer 13

oh wait noooooo i'm wrong satellite is right my bad lol

Answer 14

nono not A

Answer 15

it is the usual answer, C

Answer 16

i was going by satellites first formula

Answer 17

yah it's c

Answer 18

another c realy lol

Answer 19

just stop asking and put in C for all
save a lot of time
you will get 80% at least

Answer 20

O.o what are you doing alexis?

Answer 21

i did it was a joke

Answer 22

The area of a triangle is 299 square centimeters. The length of the base is 46 centimeters.

What is the height of the triangle?

A.
6.5 centimeters

B.
126.5 centimeters

C.
13 centimeters

D.
92 centimeters

Answer 23

c

Answer 24

\[A=\frac{1}{2}bh\] so
\[299=\frac{1}{2}\times 46\times h\] or
\[299=23h\]

Answer 25

46 x 2 / 2 = 299

Answer 26

B x H / 2
46 x 13 / 2 = 299cm2

Answer 27

that makes
\[h=299\div 23=13\]

Answer 28

surprise surprise
C again

Answer 29

we did get a D in there one time

Answer 30

lol satellite your more helpful than me your helping her by telling her how to do it, i'm just g iving the answer.

Answer 31

ok http://static.k12.com/calms_media/media/1349000_1349500/1349477/1/097283ee4d4e62a785cf45750c468c2b4a876821/150543.jpg

Answer 32

Which is the area of the figure?



A.
192 square inches

B.
324 square inches

C.
392 square inches

D.
480 square inches

Answer 33

god no
we have to break it in two a few parts

Answer 34

i learned this in 5th grade but that was 3 years ago

Answer 35

@mathmale

Answer 36

ok lets compute the big rectangle and then get rid of the small piece
the big one has dimensions 24 and 12+4+4=20 so its area is \[24\times 20=480\]

Answer 37

the part we have to get rid of is \(13\times 12=156\)

Answer 38

\[480-156=324\]is that a choice?

Answer 39

yep its b

Answer 40

oh look, a B
heaven's sake

Answer 41

what the formula for volume?

Answer 42

it is not volume, it is area
area of a rectangle is base times height

Answer 43

volume of a rectagular prism formula

Answer 44

\[wlh\] width times length times height

Answer 45

k i got a 69% :(

Answer 46

?

Answer 47

with all that help? i know we did it right together
do you have to do it again?

Answer 48

yes

Answer 49

http://static.k12.com/calms_media/media/1349000_1349500/1349450/1/147c2b18444900f5e575f9ebf5364797178af1f8/150519.jpg

Answer 50

Which is a correct way to name the ray whose endpoint is point S and that contains point U?

Answer 51

question?

Answer 52

Which is a correct way to name the ray whose endpoint is point S and that contains point U?

Answer 53

choices?

Answer 54

should be S something to the right

Answer 55

ummm

a.line st
b.line sr
c.line ru
d.line us

Answer 56

line st going to the right

Answer 57

What is the measure of the complement of an angle that measures 16°?

A.
164°

B.
29°

C.
106°

D.
74°

Answer 58

complimentary angles add to 180
180-16=164

Answer 59

wait hold on

Answer 60

that was wrong, they add to 90

Answer 61

90 - 16 = 76
sorry

Answer 62

not a option

Answer 63

74

Answer 64

k

Answer 65

i must be getting tired, i can't even subtract

Answer 66

http://static.k12.com/calms_media/media/1349000_1349500/1349457/1/cfbf095731851e002809447902f435e12f36e3c8/150527.jpg

Answer 67

Which are the correct classifications for the triangle?



A.
acute and isosceles

B.
obtuse and scalene

C.
acute and scalene

D.
obtuse and isosceles

Answer 68

i thin its c

Answer 69

hold on it is not C

Answer 70

k

Answer 71

two sides are the same, so it is isosceles

Answer 72

also acute

Answer 73

so a

Answer 74

yes

Answer 75

http://static.k12.com/calms_media/media/1349000_1349500/1349460/1/6f6ca636f8dae6ebe21cab3bec0db9e0ef6c2be6/150531.jpg

Answer 76

What is the value of x?



A.
103°

B.
84°

C.
70°

D.
77°

Answer 77

internal angles add up to 180
\[180-42-35=103\] two A's in a row!

Answer 78

http://static.k12.com/calms_media/media/328000_328500/328259/1/c5e936aa4808d9879bbbfdfe752a8dd830bf805f/MS_ALG_A1_10_test_part1_Q9_question.gif

Answer 79

Given ∆STC ~ ∆WBL, what is WL?



A.
18.75

B.
37.5

C.
32

D.
24

Answer 80

d?

Answer 81

\[\frac{x}{20}=\frac{30}{25}\]
\[x=\frac{20\times 30}{25}=24\]

Answer 82

yeah D

Answer 83

cool

Answer 84

@satellite73 would you help me

Answer 85

Which is closest to the area of a circle with a diameter of 17 meters?

A.
53.4 square meters

B.
106.8 square meters

C.
907.5 square meters

D.
226.9 square meters

Answer 86

\[\pi\times 8.5^2\]

Answer 87

http://www.wolframalpha.com/input/?i=pi*8.5^2

Answer 88

D again

Answer 89

d

Answer 90

The area of a triangle is 323 square centimeters. The length of the base is 38 centimeters.

What is the height of the triangle?

A.
8.5 centimeters

B.
17 centimeters

C.
76 centimeters

D.
142.5 centimeters

Answer 91

What is the area of a triangle
it is = 1/2 * base * height

Answer 92

\[323\div 19\]

Answer 93

b

Answer 94

i get \(17\)

Answer 95

http://static.k12.com/calms_media/media/1349000_1349500/1349476/1/4a9d3ddc6dadefe398cddf4bc62d950a89238b2c/150542.jpg

Answer 96

Which is the area of the figure?



A.
476 square inches

B.
436 square inches

C.
616 square inches

D.
486 square inches