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3 years ago

Given h(x) = 4x + 5, solve for x when h(x) = 9

Mathematics

1 answer:

Law Incorporation [45]3 years ago

7 0

Answer:

Step-by-step explanation:

You're going to make x = 9. you're equation is h(9) = 4(9) + 5. This will give you your answer of 41.

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Find the value of x when : 2^30/8^9=2^x

artcher [175]

Answer:

x = -3

Step-by-step explanation:

Okay, the first thing to do is get that 8 away from the fraction. How can we do it? When you have 2³ you have 8, is the same thing, so let's do it:

2³⁰/(2³)⁹ = 2^x

When you have a number with the shape (a^x)^y, you can write it as a^(x•y), so:

(2³)⁹ = 2^3•9 = 2²⁷

Now we have:

2³⁰/2²⁷ = 2^x

When you have a division like this: (a^x)/(a^y), you can write it as a^(x-y), so:

2^(30-27) = 2^x

2^-3 = 2^x

Now you know that x = -3

3 0

3 years ago

The number 75 can be written as the sum of the squares of 3 different positive integers. what is the sum of these 3 integers?

muminat

The square numbers smaller than 75 are 1, 4, 9, 16, 25, 36, 49, 64
1+49+25=75 seems to be the only set possible.
1+7+5=13
the answer is 13

8 0

3 years ago

When I have more than two samples of proportions, I can use ANOVA to test for significant differences. a. True b. False

Cerrena [4.2K]

False I took the quiz and it was right

5 0

3 years ago

Identify which of the twelve basic functions listed below fit the description given

DENIUS [597]

Answer:

$b.\:\: y=\sin(x),y=\cos(x)$

Step-by-step explanation:

The range of the sine and cosine functions is $-1\le x\le1$ .

This means that the maximum value the basic sine and cone functions is 1 and the minimum value is -1.

This means that the two functions are bounded above and below.

The correct answer is B.

3 0

3 years ago

If two trucks leave a given city on highways making an angle of 132 degrees with one another, traveling at 45 and 55 miles per h

Law Incorporation [45]

Answer:

183 miles to the nearest mile.

Step-by-step explanation:

Distance =Speed X Time

Distance of Truck B from point A=45 X2 =90 miles

Distance of Truck C from point A=55 X2 =110 miles

Angles between them, BAC=132°

We want to find the Distance BC denoted by a between the trucks.

Using Cosine Rule,

a²=b²+c²-2bcCos A

=90²+110²-(2X90X110XCos132°)

=33448.79

a=√33448.79

BC=182.89 miles

The distance between the trucks is 183 miles to the nearest mile.

3 0

3 years ago

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