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3 years ago

Write two expressions that could be

Mathematics

1 answer:

N76 [4]3 years ago

3 0

Answer:$80.24

Step-by-step explanation:68*0.18(18%)

12.24

68+12.24=$80.24

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20 POINTS TO WHO HELPS ME SOLVE THIS QUESTION

dexar [7]

3w7+89 so 2 to the power of 6

8 0

3 years ago

H (t) = -t2 + t + 12 Solve by using quadratic formula

Sedaia [141]

The quadratic formula is:

$x=\frac{-b+\sqrt{(b)^2-4(a)(c)}}{2a}$

and

$x=\frac{-b-\sqrt{(b)^2-4(a)(c)}}{2a}$

Let's identify our a, b, and c values:

a: -1

b: 1

c: 12

Plug in the values for a, b, and c into the equation. Let's do the first equation:

$x=\frac{-1+\sqrt{(1)^2-4(-1)(12)}}{2(-1)}$

Simplify everything in the radical:

$x=\frac{-1+\sqrt{49}}{-2}$

Simplify the radical:

$x=\frac{-1+7}{-2}$

Combine like terms:

$x=\frac{6}{-2}$

Simplify:

$x=-3$

This is one solution, now, let's solve for the other equation:

Since when simplified, everything is the same except the subtraction sign, we can skip the simplification again and change the sign to subtraction:

$x=\frac{-1-7}{-2}$

Combine like terms:

$x=\frac{-8}{-2}$

Simplify:

$x=4$

Your final answers are:

$x=-3$

$x=4$

8 0

3 years ago

Read 2 more answers

What is the sum of 4.2 × 10↑5 and 5.3 × 10↑5 in scientific notation?

Andre45 [30]

It is 2.226 X 10(Exponent is 11)

3 0

3 years ago

Work out the area of this circle.

mylen [45]

→Answer:

$50.3cm^2$

→Step-by-step explanation:

Well the formula for the area of a circle is $\pi r^2$ .

→Given information

Pi is 3.142

radius is 4 cm

answer must be rounded to the nearest tenth

____________________________________________________________

So now we have to plug in the given information into the following formula $\pi r^2$ .

(3.142)(4)^2

So now we have to solve this formula using PEMDAS.

So 4 squared is 16 and 16*3.142 is 50.272cm^2.

The question clearly states the given answer must be rounded into the nearest tenth so 50.272 is 50.3 cm^2.

__________________I do hope this helps!__________________________

5 0

4 years ago

The largest prime factor of thirty-five is _____.

galben [10]

Answer:

Prime Factor: A factor that is a prime number or it must be a whole number greater than 1.

or in other words we can say that any of the prime numbers that can be multiplied to give the original number.

To find the largest prime factor of 35.

First find the factor of 35.

Factors defined as for any numbers that we can multiply together to get another number.

Factor of 35 is; 1, 5 ,7, 35.

Now, the prime factor of 35 is 5 , 7.

Therefore, the largest prime factor of 35 is, 7.

4 0

3 years ago

Read 2 more answers