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BARSIC [14]
3 years ago
13

Please help! Brainliest and 5 star given

Mathematics
1 answer:
goldfiish [28.3K]3 years ago
5 0

Answer:

for second question

first length is 9cm

Area=l*b

= 9cm *9cm

=81<em><u>cm</u></em>

then, For semicircle

radius is 9 cm

area= 1/2*9cm

now , area of two semi circle = 2*1/2*9

= 9 cm

now area of shaded = 81-9

=72

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Answer Is not C<br>please help​
Katyanochek1 [597]

Answer:

B

Step-by-step explanation:

Well since it is arthimetic sequence we know the formula

We know d is difference between second term and first so it will be -5- (-12)= -5+12= 7

a_{n}= a _{1}+ d (n-1) \\a_{n}= -12+7(n-1)\\a_{n} = -12+7n-7\\a_{n}= 7n-19

the domain of this is 1,2,3,4.......

range is -12,-5,2,9.......

Therefore answer is B.

5 0
3 years ago
Help on this question
malfutka [58]

Step-by-step explanation:

always write what you know

circumference

U = 2 x pi x r

r = d/2

U = 39.25

rearrange and solve for r

U / (2 x pi) = r

solve for diameter

2r = d

6 0
2 years ago
NEED ANSWER ASAP!!!! <br> y=−x^2−2x+3 <br> When is g(x) = 0?
Crazy boy [7]

Answer:

y=3

Step-by-step explanation:

Since g(x)=0, you input 0 into every x

y=-(0)^{2} -2(0)+3

Which then becomes:

y=0+3

Take out the 0 and there's your answer

7 0
2 years ago
What is another way this expression can be written 0.7×0.4
KiRa [710]

Answer:

7/10*4/10

Step-by-step explanation:

7/10 and 4/10 are both just the fraction forms of the decimal so it should work

8 0
3 years ago
Read 2 more answers
A bad contains pennies, nickels, dimes, and quarters. There are 50 coins in all. Of the coins, 18% are pennies and 42% are dimes
Marina CMI [18]

Answer:

$2.64

Step-by-step explanation:

9 coins are pennies (reply to my comment if you want to know how I got it)

19 coins are dimes (reply to my comment if you want to know how I got it)

9 (pennies) + 4 = 13 (nickels)

$1.90 (dimes) + $0.09 (pennies) + $0.65 (nickels) = $2.64

5 0
3 years ago
Read 2 more answers
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