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2 years ago

What is the solution to the following system of equations? (2 points) y = x2 + 10x + 11 y = x2 + x − 7

Mathematics

2 answers:

kati45 [8]2 years ago

7 0

Answer:

y=x^(2)+10x+11,y=x^(2)+x-7

Step-by-step explanation:

I think so bro

icang [17]2 years ago

6 0

Step-by-step explanation:

I assume you mean

y = x² + 10x + 11

y = x² + x - 7

well, I subtract equation 2 from equation 1 :

0 = 9x + 18

9x = -18

x = -2

y = x² + x - 7 = (-2)² - 2 - 7 = 4 - 2 - 7 = -5

the solution (the intersection point of both graphs) is the point (-2, -5).

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write a slope intercept equation for a line passing through the point (2,-2) that is parallel and perpendicular to the line x=-1

vekshin1

You would need two different lines to complete this as lines cannot be both parallel and perpendicular (these are opposites). The answers would be:

Parallel: x = 2

Perpendicular: y = -2

In order to find these, we first need to see that the original line of x = -1 is a horizontal line. Therefore, any line that is parallel should be horizontal as well. To get a horizontal line through the point (2, -2), the only option is x = 2.

Similarly, with the perpendicular line, if the original line is horizontal, the new line must be vertical. The only vertical line that goes through (2, -2) is y = -2.

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3 years ago

If twelve pounds of nails cost $3.84 what is the unit cost A) 32c B) 28c C) 23c D) 18c

aalyn [17]

Answer:

Option A) 32c

Step-by-step explanation:

we know that

To find the unit cost, divide the total cost of twelve pounds by twelve pounds

$\frac{\$3.84}{12}=\$0.32$

Remember that

1$=100 cents

Convert dollars to cents

$\$0.32=0.32*100=32c$

therefore

The cost of one pound of nails cost 32 cents

7 0

3 years ago

Read 2 more answers

I don’t get it. <br> Use the net to find the lateral area of the prism.

sesenic [268]

the net is pretty much the net of a long box, kinda like the one in the example in the picture below. Due to that, we can pretty much assume the two sides sticking up and down, are just two small 6x3 rectangles, namely, they have a height of 3, reason why we assume that, if that if we fold the other sides to make out the box, those two sides sticking out, must be 3m to neatly snugfit.

now, if we close the box as it stands, the sides(laterals) will be on the left-right sides two 3x15 rectangles, and on the front-back sides, two 6x15 rectangles.

we're excluding the top and bottom sides, because those are not "laterals", or sides of the box.

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4 years ago

What is the residuals for this scatterplot? I WILL MARK BRAINLIEST!

vazorg [7]

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3 years ago

Tara has 24 pints of green paint. She uses 1 4 of it to paint a landscape and 5 8 of it while painting a clover. She decides tha

AfilCa [17]

Answer:Tara will need to buy more 8 2/3 pint of green paint.

Step-by-step explanation:

Total amount of green paint Tara has =24 pints

Amount used to to paint a landscape =1/4 x 24= 6

Amount used To painting a clover.= 5/8 x 24= 15

Amount of paint remaining = Total paint - Amount used up in painting landscape and clover

= 24 - ( 15+ 6)

24-21

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Since she needs 11 2/3 pints of green paints , she will need

11 2/3 - 3 = 8 2/3 .

Therefore she will need to buy more 8 2/3 pint of green paint.

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3 years ago