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3 years ago

What is 645 divided by 8

Mathematics

1 answer:

Savatey [412]3 years ago

5 0

That is the answer your welcome. :) 80.625

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Please help me i need to know what angle "t" is

maria [59]

The angle is 90° degrees.

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3 years ago

Solve this equation for x. Round your answer to the nearest hundredth. 0.77 = log x

Alekssandra [29.7K]

Answer:

x ≈ 5.89

General Formulas and Concepts:

Pre-Algebra

Equality Properties

Algebra II

Exponential to Logarithmic: $\displaystyle b^m=x \rightarrow log_bx=m$

Step-by-step explanation:

Step 1: Define

Identify

0.77 = log(x)

Step 2: Solve for x

[Equality Property] Raise both sides to the 10th power: $\displaysytle 10^{0.77} = 10^{logx}$
Simplify: $\displaysytle x = 10^{0.77}$
Evaluate: $\displaysytle x = 5.88844$

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3 years ago

The length of a rectangle is 7 inches longer than it is wide. If the area is 20 square inches, what are the dimensions of the re

Arada [10]

Area of a rectangle is length x width.

Let the width = x

The length would be x +7. ( 7 inches longer than the width)

Area = 20

Set up the formula:

20 = x * x+7

Simplify the right side:

20 = x^2 + 7x

Subtract 29 from both sides:

X^2 + 7x -20 = 0

Solve using the quadratic equation

X = -b + sqrt(b^2 -4ac) / 2a

X = -7 + sqrt(7^2-4(1)(-20) / 2(1) (exact answer)

X = 2.178908 ( as a decimal)

The width is 2.178907 inches (round as needed)

The length would be 9.178907 inches ( round as needed.)

Depending on how you round, when you multiply them together you get approximately 20 square inches.

4 0

3 years ago

Read 2 more answers

Need help due tmr please and thank you :)

Katena32 [7]

10. After all the Pythagorean theorem the answer is 51.7215 cm

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2 years ago

Find the value of x. Round to the nearest tenth.

joja [24]

Answer:

Step-by-step explanation:

7 0

2 years ago