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2 years ago

Subtract: 3x^2 -7x + 4 from 5x^2 - 3x + 8.

Mathematics

1 answer:

katen-ka-za [31]2 years ago

8 0

Answer:

-2x^2 -4x-4

Step-by-step explanation:

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When we multiply and divide we ____ the negative numbers (integers)

mafiozo [28]

Answer:

I think its supliment but I took this class a long time ago so don't quote me on that

Step-by-step explanation:

7 0

2 years ago

What is the missing value in the proportion 4/5 = x/30?

ra1l [238]

Answer:

$\displaystyle x = 24$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Step-by-step explanation:

Step 1: Define

$\displaystyle \frac{4}{5} = \frac{x}{30}$

Step 2: Solve for x

[Multiplication Property of Equality] Cross-multiply: $\displaystyle 5x = 120$
[Division Property of Equality] Divide 5 on both sides: $\displaystyle x = 24$

4 0

2 years ago

PLEASE PLEASE PLEASE HELP!!

Marta_Voda [28]

Okay I'll try to show it step by step

Step 1. So first you need to recognise that the diagram is a right angled triangle, with the right angle being at the bottom. This means we can do Pythagoras' Theorem.

Step 2. Now that you know you can use Pythagoras' Theorem, you can apply it. If you don't know, the theorem is a² + b² = c², with, in this case, a being 5 and b being 8. This means we can do 5² + 8² = 25 + 64 = 89.

Step 3. From the previous step, we now know that the length of the side including x is √89, and because we know that part of this side is 3, if we subtract 3 from √89 we get the value of x, so: √89 - 3 = 9.434 - 3 = 6.434, which is your answer.

I hope this helps!

5 0

3 years ago

which statement best describes the expression 3 2 ÷ y? the quotient of y and the sum of 3 and 2 the quotient of the sum of 3 and

grandymaker [24]

The sum of 3 and the quotient of Y and 2

7 0

2 years ago

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The number 424 is what percent of 530

postnew [5]

424/530=0,8
0,8*100%=80%

5 0

3 years ago

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