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Vladimir79 [104]

3 years ago

12

A survey of 240 families showed that.. 91 had a dog 70 had a cat 31 had a dog and a cat 91 had neither a cat nor a dog nor a par

akeet 7 had a cat and a dog and a parakeet how many had a parakeet

1 answer:

noname [10]3 years ago

3 0

This is a trick question. 7 families had a parakeet.

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Explain the steps when solving this. <br> 10 + h > 2 + 2h

kati45 [8]

Solve it like you would for an equation by isolating the variable h.

First subtract h from both sides.

10+h-h>2+2h-h
10>2+h

Then subtract 2 from both sides.

10-2>2-2+h
8>h

We can then flip 8>h to h<8 just because it's a more standard way of writing it.

Final answer: h<8

5 0

4 years ago

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From the top of an apartment building, the angle of depression to a car parked on the street below is 32 degree. The car is park

Citrus2011 [14]

Answer: The height of the building = 56 feet.

Step-by-step explanation:

Let AB be the height of the building and BC be the distance of the car from the building on the ground.

Now , ∠ C = 32° [Alternate interior angles ]

According to the trigonometry,

$\tan x =\dfrac{Perpenicular}{base}\\\\\Rightarrow\ \tan 32^{\circ} =\dfrac{AB}{90}\\\\\Rightarrow\ 0.6248693519=\dfrac{AB}{90}\\\\\Rightarrow\ AB = 90\times 0.6248693519=56.238241671\approx56$

Hence, the height of the building = 56 feet.

6 0

3 years ago

The _____ _____, f(x) = x, is formed by the composition of a function and its inverse. (2 words)

jonny [76]

Answer:

Identity function

Step-by-step explanation:

We are given the following in the question:

Let f(x) be a function.

Then, inverse of f(x) can be written as:

$f^{-1}(x)$

The composition function of the function and the reverse function can be found as:

$(f\circf^{-1})(x) = f(f^{-1})(x) = x$

which is an identity function.

Thus, the correct answer is

The identity function, f(x) = x, is formed by the composition of a function and its inverse.

8 0

3 years ago

Given the height, h, and the volume v of a certain cylinder, alex uses the formula v ph r 5 !§ to compute its radius, r, to be 1

dmitriy555 [2]

We know that
volume of a cylinder=pi*r²*h
r=√[V/(pi*h)]
r=10 m

A <span>second cylinder has
V2=V-----> volume of the second cylinder
h2=25*h----> height of the second cylinder
r2----> radius of the second cylinder
r2=</span>√[V2/(pi*h2)]----> r2=√[V/(pi*25*h)]---> r2=(1/5)*√[V/(pi*h)

r2=(1/5)*10-----> r2=2 m

the answer is
<span>the radius of the second cylinder is 2 m</span>

7 0

3 years ago

What is the gcf of 24 30 42

olga55 [171]

GCF(24, 30, 42) = 6 I think it is.

6 0

3 years ago

Read 2 more answers