MATHEMATICS HIGH SCHOOL

What is the answer to 5(3x-2)-(3x+5

Answers

Answer 1

Answer:

Answer:

The answer is 12x-15

Step-by-step explanation:

This is a simplification question, so

5(3x-2) using distributive property makes it (15x - 10)

-(3x+5) negating 3x+5 gives -3x-5

so 15x-10-3x-5 = 12x-15

Hope this helps!

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What is the solution of the equation 14 x − 1 = 7? 3 2 2 32 36
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For every $10 glen earns is parents require him to save $2. What percent of his money does he get to spend

The equation for the circle below is x2 + y2 = 100. What is the length of the
circle's radius?

Answers

Answer:

Step-by-step explanation:

x²+y² =(Radius)²

x²+y² =10². So the radius is 10

Answer:

radius = 10

Step-by-step explanation:

The equation of a circle centred at the origin is

x² + y² = r² ( where r is the radius )

x² + y² = 100 ← is in this form

with r² = 100 ( take the square root of both sides )

r = $√(100)$ = 10

The brain has 100 billion brain cells. If you counted each cell at 1 per second, how long would it take you to count all 100 billion cells?

Answers

100 billion seconds because you do 100 billion times 1 to get 100 billion/ second

I need help with this

Answers

Answer:

a)7x - 10

b) 70 g

Step-by-step explanation:

Mass of 1st chemical which was mixed = 10g

Mass of 2nd chemical which was mixed = 2x

Mass of 3rd chemical which was mixed = 5x-20

So total mass of the the mixture which was formed after mixing all the 3 chemicals are =

10 + 2x + 5x - 20

=> 7x - 10

Mass of the mixture = 235 g

From (a) , we know that

7x - 10 = 235

=> 7x = 235 + 10 = 245

=> x = 245 / 7 = 35

Hence x = 35

We also know that mass of the 2nd chemical was = 2x.

So putting the value of x gives :-

2 × 35 = 70 g

Factor completely 14bx2 − 7x3 − 4b + 2x.(2b + x)(7x2 + 2)

(2b − x)(7x2 − 2)

(2b + x)(7x2 − 2)

Prime

Answers

Answer:

$(2b-x)(7x^2-2)$

Step-by-step explanation:

We have to factor the expression $14bx^2-7x^3-4b+2x$

We apply the method of grouping to factor it.

Make groups

$(14bx^2-7x^3)+(-4b+2x)$

Take GCF

$7x^2(2b-x)-2(2b+x)$

Finally, factored out the common factor

$(2b-x)(7x^2-2)$

The factored form of the given expression is

$(2b-x)(7x^2-2)$

hello,

14bx²-7x^3-4b+2x= -7x^3+14bx²+2x-4b
=-7x²(x-2)+2(x-2b)
=(x-2b)(-7x²+2)
=(2b-x)(7x²-2)

answer 2

Of the 48 oranges in a carton 1/3 of them were rotten Ben and David took the remaining good oranges it's been took eat my oranges and David how many oranges did David take

Answers

Answer:

David took 16 oranges.

Step-by-step explanation:

We are given the following in the question:

Total number of oranges = 48

Oranges rotten =

$(1)/(3)$

Number of oranges rotten =

$(1)/(3)* 48\n\n=16$

There were 16 rotten oranges.

Number of good oranges left =

$= 48-16\n=32$

These are equally divided among Ben and David.

Number of oranges each Ben and David get =

$(32)/(2) = 16$

Thus, David took 16 oranges.

Complete the statements about the key features of the graph of f(x) = x5 – 9x3.As x goes to negative infinity, f(x) goes to ________ infinity, and as x goes to positive infinity, f(x) goes to _______ infinity.