All categories

3 years ago

Please help me. You will be marked brainliest.

Mathematics

1 answer:

atroni [7]3 years ago

8 0

Answer:

What do you need help with?

Step-by-step explanation:

You might be interested in

A copy machine makes 24 copies per minute . how long does it take to make 84 copies

malfutka [58]

Simply divide 84 by 24

$\frac{84}{24} = \frac{21}{6} = 3 \frac{3}{6} = 3 \frac{1}{2}$

$3 \frac{1}{2} \: minutes$

3 0

4 years ago

Read 2 more answers

A wedding planner uses 72 ivy stems for 18 centerpieces. When she arrives at the venue, she realizes she will only need 16 cente

adell [148]

Answer:

64 ivy stems

Step-by-step explanation:

Ratio of ivy stems to centerpieces:

72/18 = 4 ivy stems per centerpiece

Therefore,

16 x 4 = 64

7 0

3 years ago

Read 2 more answers

X^3-8/x-2 simplify and I need an explanation please

Sergeu [11.5K]

Answer: $x^2+2x+4$

Step-by-step explanation:

The expression given in the exercise is:

$\frac{x^3-8}{x-2}$

If you descompose the number 8 into its prime factors, you get that:

$8=2*2*2=2^3$

Therefore, you can rewrite the numerator of the expression as following:

$=\frac{(x^3-2^3)}{(x-2)}$

For this exercise you need to remember that for a Difference of cubes:

$a^3-b^3=(a-b)(a^2+ab+b^2)$

Then, applying this, you get:

$=\frac{(x-2)(x^2+2x+2^2)}{(x-2)}=\frac{(x-2)(x^2+2x+4)}{(x-2)}$

Now, it is necessary to remember the following:

$\frac{a}{a}=1$

Knowing the above, you can say that:

$\frac{(x-2)}{(x-2)}=1$

Therefore applying this, you get that the simplified expression is:

$=x^2+2x+4$

8 0

3 years ago

Mark is proving the Pythagorean Theorem. He drams right triangle KL with altitude JM First he proves JKLAMK) and JKL-MIL ssing t

Troyanec [42]

Answer:

Step-by-step explanation:

Given: Step 3

(JK)² = LK · MK and (LJ)² = LK · ML

Step 4

Addition property of equality

(JK)² + (LJ)² = LK · MK + LK · ML

Step 5

Distributive property

(JK)² + (LJ)² = LK (MK + ML)

3 0

2 years ago

Read 2 more answers

Last week the price of oranges at the farmers market was 1.75 per pound.This week the price has decreased by 20%.What is the pri

antoniya [11.8K]

Answer:

1.40

Step-by-step explanation:

Last week, the price of oranges at the farmers market was 1.75

This week, the price has reduced by 20%

20% of 1.75 = 0.2 × 1.75 = 0.35

The price of the oranges this week is 1.75 - 0.35 = 1.40

7 0

3 years ago