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2 years ago

How do you solve this?

Mathematics

2 answers:

Llana [10]2 years ago

7 0

We have to follow PEMDAS:

Parentheses

Exponents

Multiplication

Division

Addition

Subtraction

First we are going to do parentheses which is:

3^2=9 9-5=4 9x4=36

Now that parentheses are done, we move on to multiplication and division:

36÷36=1 1x4=4

36÷ [3^2 x (9-5)] x4 = 4

Hope this helps! :)

<h3>CloutAnswers</h3>

motikmotik2 years ago

3 0

Pemdas helps so first you do Parentheses Exponet multiply divide add and subtract

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Foil: (x+9)(3x-4)

QveST [7]

QUESTION 1

The given binomial is;

$(x+9)(3x-4)$

First terms are multiplied: $x\times 3x=3x^2$

Outside terms are multiplied: $x\times -4=-4x$

Inside terms are multiplied: $9\times 3x=27x$

Last terms are Multiplied: $9\times -4=-36$

This gives us;

$=3x^2-4x+27x-36$

$=3x^2+23x-36$

QUESTION 2

We want to factor

$6r^5s+4r^4s^2-8r^2s$

The HCF is $2r^2s$

We factor to get;

$2r^2s(3r^3+2r^2s-4)$

QUESTION 3;

$x^2+x-2=0$

Split the middle term;

$x^2+2x-x-2=0$

Factor

$x(x+2)-1(x+2)=0$

$(x+2)(x-1)=0$

$(x+2)=0,(x-1)=0$

$x=-2,x=1$

The solutions are;

$x=-2$ and $x=1$

These are the x-intercepts of the graph of the function

$f(x)=x^2+x-2$

3 0

3 years ago

How many ways can you arrange 10 numbers

kkurt [141]

Answer:

3628800

Step-by-step explanation:

There are 10 options for the first number.

That leaves 9 options for the second number.

That leaves 8 options for the third number.

So on and so forth.

The number of ways 10 numbers can be arranged is:

10×9×8×7×6×5×4×3×2×1

= 10!

= 3628800

8 0

3 years ago

[EXTENDED RESPONSE SHOW ALL WORK.]

Lapatulllka [165]

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4 0

3 years ago

Use the equation below to find T, if w=85, m= 12, and a=3.<br> T=w-ma<br> T = 3,060<br> X<br> ?

saw5 [17]

Answer:

T = 49

Step-by-step explanation:

T = w - ma

w = 85

m = 12

a = 3

Plug in the corresponding numbers to the corresponding variables:

T = (85) - (12) * (3)

Remember to follow PEMDAS. PEMDAS is the order of operations, and stands for:

Parenthesis

Exponents (& Roots)

Multiplications

Divisions

Additions

Subtractions

First, multiply, then subtract:

T = 85 - (12 * 3)

T = 85 - 36

T = 49

T = 49 is your answer.

6 0

1 year ago

What is the difference between Z1 and z2, and where is the difference located?

NeTakaya

Answer:

Step-by-step explanation:

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7 0

3 years ago

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