jean needs to graph the function below y= 7x^2 + 8x - 6 How many time should the graph of this function intersect at the x-axis?

Answers

Answer 1

Answer: when it intersects the x axis, the y value is 0
0=7x^2+8x-6
2nd degree, therefor there are 2 solutions and also 2 intersections

answe is 2 times

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Quadrilateral LMNO has diagonals that intersect at point P. If LP=NP, MP = y + 25, and OP = 5y + 29, find the length of MO such that LMNO is a parallelogram.. . A.24. B.48. C.61. D.122

What is the value of

Answers

Answer:

61°

Step-by-step explanation:

∠SPQ is a straight line, so it equals to 180°.

∠SPR is 119° and since we're looking for ∠QPR, we subtract 119° from 180°.

180° - 119° = 61°, so ∠QPR = 61°

Answer:

61 degrees

Step-by-step explanation:

Because SPQ is said to be a straight line, we know that a straight line in this kind of equation is equal to 180 degress.

Since we already know the measure to one angle (119), we would need to find the difference between 180 and 119, meaning we'd have to subtract.

(180-119)

Then we would just get the sum, which in this case, is 61 degrees.

What is -7nx+2nx+2n+7x equal to

Answers

-7nx + 2nx + 2n + 7x ...combine like terms
-5nx + 2n + 7x

5nx+2n+7x which is combined like terms all you do is cut the problem down.

What value for c will make the expression a perfect square trinomial? x2 – 7x + c

Answers

Answer: 12.25

Step-by-step explanation:

A perfect square trinomial is written as $ax^2+2abx+b^2$ , where

first term $ax$ = square of first term of binomial

second term=2abx=twice the product of both terms of binomial.

and third term 'c'=square of last term of binomial

In the given polynomial , $x^2+7x+c$ , a=1

and 2ab = 7

When we put value of a =1, we get

$2(1)b=7\n\Rightarrow\ b=(7)/(2)$

Hence, in place of the question mark makes the given polynomial a perfect square trinomial = $b^2=((7)/(2)^2=12.25$

I assume the first part of that equation is x^2. -7/2= 3.5 ; 3.5^2=12.25 sooo it should end up as x^2-7x + 12.25. but I might be wrong.

20=8+v i dont know how to do this

Answers

20 = 8 + v equals v = 12.

First, subtract 8 from both sides. Your problem should look like: 20 - 8 = v
Second, simplify 20 - 8 to get 12. Your problem should look like: 12 = v.
Third, switch sides to get v = 12, which is the correct answer.

You subtract 8 from both sides so the answer is v=12

Peter buys tickets for his family to see his favorite movie, Elephant Mistake. He pays$37.50 for 2 adult tickets and 2 student tickets. The next week he goes back with
his friends and pays $35.25 for 1 adult ticket and 3 student tickets. Choose the
system of equations that can be solved to find the price of an adult ticket, a, and
the price of a student ticket, y.

Answers

2a + 2s = 37.50

a + 3s = 35.25

-2a - 6s = -70.50

-4s = -33.00

s = 8.25

2a + 2(8.25) = 37.50

2a + 16.50 = 37.50

2a = 21.00

a = 10.50

The answer is one adult ticket costs $10.50 and one student ticket costs $8.25.

A number, n, is added to 15 less than 3 times itself. The result is 101. Which of the following can be an equation can be used to find the value of n?a.n + (3n - 15) = 101
b.4n - 15 = 101