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3 years ago

Can someone help me do this question?

Mathematics

2 answers:

cupoosta [38]3 years ago

8 0

Answer:

Last option.

Step-by-step explanation:

x = -1

y = 6(-1) + 6

y = -6 + 6

y = 0

( -1, 0 )

x = 0

y = -(0)² + 5(0) + 6

y = 0 + 0 + 6

y = 6

( 0, 6 )

Naddik [55]3 years ago

4 0

Answer:

(-1, 0) and (6, 0)

Step-by-step explanation:

$y=6x+6\\y=-x^2+5x+6\\\\6x+6=-x^2+5x+6\\6x=-x^2+5x\\x=-x^2$

The solutions for these equations are (-1, 0) and (6, 0).

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How do I factor out the coefficient of the variable ?<br><br> 3/10y-2/5

Sindrei [870]

Add 3/10 to 2/5 to factor it out

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3 years ago

Find the slope of the line through the given points (8,-3), (5,-3)

fredd [130]

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3 years ago

Tyler wonders what proportion of students at his school would dye their hair blue if their parents would let them. He surveyed a

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Using the proportion concept, it is found that:

According to Tyler's sample, the estimate is of 0.2 = 20%.

According to Kyran's sample, the estimate is of 0.17 = 17%.

Due to the higher sample size, Kyran's estimate is more accurate.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and larger sample sizes lead to more accurate predictions.

In Tyler's sample, 2 out of 10 students would dye their hair blue, hence:

p = 2/10 = 0.2.

In Kiran's sample, 17 out of 100 would, hence:

p = 17/100 = 0.17.

Due to the higher sample size, as 100 > 20, Kyran's estimate is more accurate.

More can be learned about proportions at brainly.com/question/24372153

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2 years ago

The marked price of an article is 25% above the selling price and the cost price is 20% below the selling price. Find the rate o

MAXImum [283]

Step-by-step explanation:

The marked price of an article is 25% above the SP and the CP is 20% below the selling price. What is the rate of discount and the profit percentage?

Let C, M & S denote cost-price, marked-price & sell-price respectively of the article.

Hence from above data we get following relations,

M = (1 + 25/100)*S = 1.25*S ….. (1a)

C = (1 - 20/100)*S = 0.80*S ….. (1b)

From (1a) we get,

S = (100/125)*M = (4/5)*M

or S = (1 - 1/5)*M = (1 - 20/100)*M ….. (2a)

From (1b) we get,

S = (100/80)*C = (5/4)*M

or S = (1 + 1/4)*C = (1 + 25/100)*C ….. (2b)

Therefore

It is evident from (2a) that

the discount percentage = 20% [Ans]

It is evident from (2b) that

the profit percentage = 25% [Ans]

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3 years ago

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3 years ago