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3 years ago

-2x + y=-5+ -2x -y=-3

Mathematics

1 answer:

vodomira [7]3 years ago

6 0

Answer: Point-Form : (2,-1)

Equation Form : x=2, y=-1

Step-by-step explanation: Solve for the first variable in one of the equations, then substitute the result into the other equation.

Hope this helps you out! ☺

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Find the volume and explain please ASAP.

olya-2409 [2.1K]

Answer:

1395in^3

Step-by-step explanation:

First find the volume of the cuboid, 15in x 9in x 7in = 945in^3

Then find the volume of the rectangular pyramid using the formula V=lwh/3, the total height is 17in so subtract the height of the cuboid from the total height, giving you 10in.

V=(15in)(9in)(10in)/3 = 450in^3

450in^3 + 945in^3 = 1395in^3

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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

−5x−9y=3 plus 5x−9y=-2

Murrr4er [49]

Answer:

-18y=1

Step-by-step explanation:

Sorry if this is wrong, I was just guessing...

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2 years ago

What is 4.74 divided by 0.06 (needed by this Friday, today is Tuesday, March 5th, I also need to know what 19.44 divided by 0.54

sladkih [1.3K]

4.74/.06=79

19.44/.54=36

I used a calculator. You can change each decimal into a fraction to solve too.

7 0

3 years ago

What is 1.75 in words

wlad13 [49]

One and seventy-five hundreths is how you say it in word form.

Example:
0.1234
1 is in the tenths place.
2 is in the hundreths place.
3 is in the thousandths place.

7 0

3 years ago

Read 2 more answers

-2x + y=-5+ -2x -y=-3​

-2x + y=-5+ -2x -y=-3