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Tems11 [23]
3 years ago
14

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

Mathematics
1 answer:
butalik [34]3 years ago
5 0

Answer:

Step-by-step explanation:

- 16t² +400 = 0

t² = 400/16

t² = 25

t = 5 or t = - 5

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Please help! 15 Points!
san4es73 [151]

Answer:

Option C and D

Step-by-step explanation:

2π/3 refers 120°which falls in the second quadrant. In second quadrant sin  value is positive and tan & cos value is negative.

tan 120 = - tan 60 = -√3

4 0
2 years ago
NEED HELP! Will give brainliest!!! Answer number 18 and 19
Zanzabum

18. 3 (-5 + 1) = 6 x -3 = -18 false its -14

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7 0
3 years ago
in math class, 60 percent of the studnets are male and there are 30 students in class. how many students are males
stira [4]

Answer:

18 students

Step-by-step explanation:

60% of 30

(60*30)/100

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8 0
3 years ago
Read 2 more answers
Find the surface area​
Semmy [17]

Answer:

The surface area is 198.75\ ft^2

Step-by-step explanation:

<u>Step 1:  Determine the area of the bottom</u>

A = s^2

A = (7.5\ ft)^2

A = 56.25\ ft^2

<u>Step 2:  Determine the area of the triangles</u>

A = \frac{h * b}{2}

A = \frac{9.5\ ft * \frac{7.5\ ft}{2}}{2}

A=\frac{9.5\ ft*3.75\ ft}{2}

A = 17.8125\ ft^2

There are two of these right triangles on every side which means that we have 8 of these triangles so we multiply the area that we got by 8.

A = 17.8125\ ft^2 * 8

A=142.5\ ft^2

<u>Step 3:  Combine the area to get the surface area</u>

A_{total}=56.25\ ft^2+142.5\ ft^2

A_{total}=198.75\ ft^2

Answer: The surface area is 198.75\ ft^2

6 0
3 years ago
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olga_2 [115]
345 =
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391 =
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4 0
4 years ago
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