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2 years ago

Select all x values that are solutions to the equation

Mathematics

1 answer:

Nutka1998 [239]2 years ago

7 0

Answer:

The answers are 3 and 5

The only thing u had to do is

x-5=0

x=5

7x-21=0

7x=21

x=3

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write each of the following word names as mixed if you purchase a hundred items that cost $0.25 each how much would the items co

docker41 [41]

Answer:$25 because if u times 100 and 0.25 u get 25

Step-by-step explanation:

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3 years ago

Zoe drew a map with a scale of 1 inch to 12 miles. What length on<br> Zoe's map represents 68 miles?

natta225 [31]

Answer:

5.66 inches

Step-by-step explanation:

In this case I know the ratio or that 1 inch equals 12 miles, so 1 times 12. I need to find out how many inches represents 68 miles, so 12 times what number equals 68? I would divide 68 divided by 12 and I get 5.66 that terminates, the teacher should accept 5.66 inches or 5 and 2/3.

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4 years ago

What is 60% of one-half x?

liq [111]

Answer:

0.3

Step-by-step explanation:

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3 years ago

Sin(cos^-1 x)<br><br> how to solve?

tatiyna

Answer:

$sin(cos^{-1}x)=\sqrt{1-x^2}$

Step-by-step explanation:

let us assume

$cos^{-1} x=\theta\\x=cos\theta\\$

now

$sin(cos^{-1}x)$ can be written as $sin\theta$

we know $sin^2\theta+cos^2\theta=1$

so $sin^2\theta=1-cos^2\theta$

$sin\theta=\sqrt{1-cos^2\theta}$

now from above equation we can say that

$sin\theta=\sqrt{1-x^2}$

$sin(cos^{-1}x)=\sqrt{1-x^2}$

7 0

3 years ago

Jennifer makes 1.7 liters lemonade. If she pours 3 tenths of the lemonade in the glas,how many liters of lemonade are in the gla

german

You need to set up a portportation to solve this question to do so you need to know that 3 tenths is 30% so you can do:

30/100 = x/1.7

So now you cross multiply doing 30X17=510
Finially X=510/100
Simpified Answer is 5.1 liters

4 0

3 years ago

Read 2 more answers