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3 years ago

8

In a complete sentence, describe the positions of these numbers on the number line in relation to each other. Then, write an ine

quality statement comparing the numbers, using the symbol > or <.
-13 -10

1 answer:

saveliy_v [14]3 years ago

8 0

-13 is lower than -10, therefore the question would be -13<-10

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Choose the correct x-intercepts for the following quadratic function.

natali 33 [55]

Brainly doesn't automatically "know" every part of the problems you post here; you have to ensure that your post includes everything in the original problem.

We can still have some fun with answer choice <span>x = 1, x = 3:

An associated quadratic function would have the form y = a(x-1)(x-3). Just supposing that the point (2, 5) were on the graph, then this </span>y = a(x-1)(x-3) would become 5 = a(2-1)(2-3), or 5 = a(1)(-1), or 5 = -a, or a = -5.

Thus, the equation of the parabola would be y = -5(x-1)(x-3), or, in the more usual form, y = -5(x^2 - 4x + 3).

Complete the square to find the vertex:

Steal y = x^2 - 4x + 3 for a moment and complete the square:

x^2 - 4x + 3 = x^2 - 4x + 4 - 4 + 3, or (x-2)^2 - 1

Subbing this back into y = -5(x^2 - 4x + 3), we get

y = -5 [ (x-2)^2 -1 ], or y = -5(x-2)^2 + 5. This shows that the vertex is at (2, 5), that the graph opens downward, and the graph is symm. about the line x = 2.

Having fun yet?

8 0

3 years ago

Select all the points that are on the graph of the line 2x + 4y=20 a.)(0.5) b. (0,10) c. (1,2) d.) (1,4) e.) (5,0) f. (10,0)

zmey [24]

Answer:

(0,5) and (10,0)

Step-by-step explanation:

The equation of the straight line is given by 2x + 4y = 20 .......... (1)

Now, point (0,5) satisfies the equation (1) as putting x = 0, we will get y = 5.

Now, point (0,10) does not satisfy the equation (1) as putiing x = 0, we get y = 5 ≠ 10

Again, point (1,2) does not satisfy the equation (1) as putiing x = 1, we get y = 4.5 ≠ 2

Now, point (1,4) does not satisfy the equation (1) as putiing x = 1, we get y = 4.5 ≠ 4

Again, point (5,0) does not satisfy the equation (1) as putiing y = 0, we get x = 10 ≠ 5

Finally, point (10,0) satisfies the equation (1) as putiing y = 0, we get x = 10 .

Therefore, only points (0,5) and (10,0) are on the graph of the line 2x + 4y = 20 (Answer)

8 0

3 years ago

Find the unit rate with the second given unit in the denominator.

Korolek [52]

If 9 pizzas cost $67.50 that means that 1 pizza costs 67.50/9 = $7.5

Answer A is incorrect because of false prize of pizza.

B isn't correct because 1 pizza cost $7,5 and not 7,5 pizzas cost $1

C isn't answer because of both reasons from answer A and answer B

D is the answer because it says that you need to pay $7.5 per pizza.

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3 years ago

PLEASE HELP! The trail around Mirror Lake in Yosemite National park is 5 miles long. What fraction describes how much more of th

Katen [24]

Answer:

Jon - Andrea = 1/10
Callie - Jon = 3/10

Step-by-step explanation:

In terms of tenths, the distances each hiked are ...

Andrea — 4/10
Jon — 5/10
Callie — 8/10

Then the differences of interest are ...

Jon - Andrea = 5/10 -4/10 = 1/10

Callie - Jon = 8/10 - 5/10 = 3/10

__

Jon hiked 1/10 of the trail more than Andrea.

Callie hiked 3/10 of the trail more than Jon.

6 0

3 years ago

Which expression is equivalent to -2(3x + 5y)?

Ksivusya [100]

Answer:

-6x-10y

Step-by-step explanation:

Multiply -2 by everything in parenthesis

4 0

3 years ago