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makvit [3.9K]
2 years ago
15

HELP!!!!!!!!!!!!!!!!!!

Mathematics
2 answers:
maxonik [38]2 years ago
7 0

Answer:

Concept: Area

  • Area= (3.14)r^2
  • Hence 3.14 * 7^2
  • 3.14* 49 =153.86
  • Divide by 4 for the qualifications
  • 153.86/4= 38.47
Rudik [331]2 years ago
3 0
38.47 is your answer. Remember pi is 3.14 so you the formula
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Let g be the function given by g(x)=√ 1−sin2x. Which of the following statements could be false on the interval 0≤x≤π ?
zysi [14]

Answer:

yooooooooooooooooooooooooo

Step-by-step explanation:

yesirskiii\

6 0
2 years ago
What is 5x (3/5 +1/2) Equal as a fraction with a whole number
viva [34]
5 1/2 x is the correct answer! 5x must be multiplied by both fractions within the parentheses. Please vote my answer brainliest!
5 0
3 years ago
How do you find the value of t in -t/7=1/15
kolezko [41]
First, multiply the 7 on both sides.
\frac{-t}{7} =  \frac{1}{15}
-t =  \frac{7}{15}
Finally divide by -1 on both sides to get t = -7/15 as your answer.
3 0
3 years ago
HELPPPP PLEASE HELP ME WITH BASIC MATH I REALLY APPRECIATE IT ((WILL MARK AS BRAINLIEST))​
Yakvenalex [24]

Answer:

3) 522

4) 468

Step-by-step explanation:

hello!

3) in the question, it says the cross section is a square, and the area of PQRS is 81.

for the square, we know that the length and height have to be the same, so if the area is 81, then we know the sides are both 9 because 9*9 is 81 and they're the same numbers multiplied. (same height and length)

with the information that all 4 sides of the square is 9 and the other side is labeled 10, we can figure out the rest.

both squares : 81+81=162

both 10 by 9 sides: 90+90=180

both 10 by 9 sides (top and bottom): 90+90=180

total surface area=162+180+180=522

4) for this problem, we can see that the triangle is a right triangle.

to solve the area of the triangle, we can do (9*12)/2=108/2=54.

there are two sides with triangles, so we double 54 (54*2=108)

9 by 10 side: 90

10 by 12 side: 120

now for the last slide, theres no information on the length. the formula for the diagonal is

a^2+b^2=c^2

which is

9^2+12^2=81+144=255=15^2

with this, the area of the rectangular side gives us 10*15 which is 150.

adding it together, we get

108+90+120+150=468.

hope this helps!

7 0
2 years ago
What is the answer to this ?
likoan [24]

-25x + 40

Step-by-step explanation:

-8 (4x-5) + 7x

-32x + 40 + 7x

-32x +7x + 40

-25x + 40

8 0
2 years ago
Read 2 more answers
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