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3 years ago

What is the solution to the quadratic equation x2 + x - 30 = 0?

Mathematics

1 answer:

Nadusha1986 [10]3 years ago

3 0

Answer:

try 3x=30 or 10

Step-by-step explanation:

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Use scientific notation to estimate the number of inches in 1,225 miles. Include all calculations in your final answer.

valentinak56 [21]

Answer:

1,225 miles = 77616000 inches

Step-by-step explanation:

It is asked to find the number of inches in 1,225 miles

Given

1 inch ≈ 1.578 × 10^-5 miles

Therefore, 1 mile = 63360 inches

Therefore, 1,225 miles = 1225 x 63360 inches

1,225 miles = 77616000 inches

or 1,225 miles = 7.7 x $10^{7}$ inches

Therefore the final answer is

1,225 miles = 77616000 inches

or 1,225 miles = 7.7 x $10^{7}$ inches

3 0

3 years ago

Your turn

Ann [662]

Answer:

450/3

Step-by-step explanation:

4 0

3 years ago

List five rational numbers between: <br> −4<br> 7<br> and <br> 1<br> 2

klio [65]

5 rational number between -47 and 12 are {-46, -45, -44, -43, -42}

<h3>How to find the rational numbers?</h3>

Remember that any integer is also a rational number.

So, if we want to find 5 rational numbers between -47 and 12, we can just find 5 integers between these two numbers.

To do that, we can just add 1 to the lowest bound, we will et:

-47 + 1 = -46

-45 + 1 = -45

-44 + 1 = -44

-43 + 1= -43

-43 + 1 = -42

So 5 rational number between -47 and 12 are {-46, -45, -44, -43, -42}

If you want to learn more about rational numbers:

brainly.com/question/12088221

#SPJ1

7 0

1 year ago

Calculate the volume of the given pyramid to the nearest tenth

ankoles [38]

Answer:(A.)

Step-by-step explanation:The reason why its a its because that 13x8=104x17=1,768/3=589.3. Therefore 589.3 can not be round to the nearest tenth.

4 0

3 years ago

The Area of a rectangle is 3x2 + 9x square inches. The length of the rectangle is 3x inches.

Roman55 [17]

Width of the rectangle is x + 3 in

Step-by-step explanation:

Step 1: Given area of the rectangle = 3x² + 9x in². Length = 3x in. Find width.

Area = length × width

3x² + 9x = 3x × width

∴ Width = 3x² + 9x/3x = x + 3 in

3 0

3 years ago

Read 2 more answers