3 years ago

The equation for area of a triangle is

Mathematics

1 answer:

stepan [7]3 years ago

3 0

Answer:

h=2A/b

Step-by-step explanation:

I did the test

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F(x) = 2x and g(x) = x + 1, find f(3) and find gf(3)

lord [1]

Answer:

6 and 7

Step-by-step explanation:

To evaluate f(3), substitute x = 3 into f(x) , that is

f(3) = 2(3) = 6

To evaluate g(f(3)), substitute f(3) = 6 into g(x)

g(6) = 6 + 1 = 7

8 0

2 years ago

A biologist studying the relationship between tilapia and catfish in a pond finds that the ratio of tilapia to catfish is 6:20.

Neko [114]

Answer: 9 tilapia

Step-by-step explanation:

The ratio of 6:20 for tilapia to catfish means that for every six tilapia, there are 20 catfish in the pond.

If there are 30 catfish, use direct proportion to find out the number of tilapia:

6 : 20

x : 30

Cross multiply:

20x = 180

x = 180 / 20

x = 9 tilapia

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3 years ago

Which table represents m as a function of t?

liubo4ka [24]

Answer:

christian from weslaco high?

Step-by-step explanation:

3 0

3 years ago

Help please quick! i need to find all the missing angles and side

Molodets [167]

Answer:

I think the answer is 73.

Step-by-step explanation:

did it state the volume?

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8 0

3 years ago

Dr. Ashby is studying the heart rate of adult men. Preliminary data suggests that the standard deviation of heart rates for adul

jok3333 [9.3K]

Answer:

n=42 adult men

Step-by-step explanation:

-The minimum sample size to get a desired margin of error, E is calculated using the formula:

$n\geq( \frac{z\sigma}{E})^2$

-Given that $\sigma=7.5, \ \ E=3\ , \ z_{0.005}=2.58$ , we can substitute to solve for n in the above formula:

$n\geq (\frac{z\sigma}{E})^2\\\\\therefore n=(\frac{z_{\alpha/2}\sigma}{E})^2\\\\=(\frac{2.58\times7.5}{3})^2\\\\=41.6025\approx42$

Hence, the desired minimum sample size, n is 42 adult men.

4 0

3 years ago