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mel-nik [20]
3 years ago
6

How many x-intercepts does the graph of y = 2x^2 + 5x +9 have?

Mathematics
1 answer:
Pepsi [2]3 years ago
7 0

Answer:

2

Step-by-step explanation:

y = 0 at the point where the function intersects x-axis. Thus, yiou have to put

                                              2x2 + x - 10 = 0

and solve the equation. It is better to factor the quadratic expression, which gives us

                                             2x2 + x - 10 = (2x+5)(x-2) = 0

We have 2x +5 = 0     and x-2 = 0. Thus, the intercepts are x = -5/2 = - 2.5    and x = 2.

Read more on Brainly.com - brainly.com/question/12158546#readmore

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2.25 meters long and 1.8 meters wide. What is the area of the blanket
ahrayia [7]
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3 years ago
Hi! ❤️ , im looking for some help here. ill give brainliest if able to.
Alexeev081 [22]

Answer:

A. 2^11

Step-by-step explanation:

(They are basically asking what's 2^4 × 2^7, but with more words.)

I usually do each exponent individually:

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BUT, you can also:

(Combine the exponents together to get your answer. Just remember that if it's multiplication you add them, and if it's division you subtract them.)

2^4 × 2^7

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2^11 (This equals 2,048 btw. You don't even have to check all the options to get the answer).

Hope this helps friend :)

The last part I learned from another user, while answering one of your other questions. I personally find this mind blowing, lol.

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