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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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A similarity transformation is one or more rigid transformations (reflection, rotation, translation) followed by a dilation. When a figure is transformed by a similarity transformation, an image is created that is similar to the original figure.
4 0
3 years ago
What are two integers whose product is 0
guapka [62]

Answer:

At least one of the integer must be equal to zero to obtain the product zero

Step-by-step explanation:

we know that

When multiplying integers , if one or both of the integers is 0, then the product is 0.

The multiplication property states that the product of any number and zero is zero.

so

a*(0)=0

therefore

At least one of the integer must be equal to zero to obtain the product zero

therefore

7 0
3 years ago
Pi/6 is the reference angle for:<br><br> 3pi/6<br><br> 5pi/6<br><br> 13pi/6<br><br> 8pi/6
Elanso [62]

Answer:

\frac{5\pi}{6}, \frac{13\pi}{6}

Step by step

Remember, a reference angle is a positive acute angle that represents an angle θ of any measurement.

a)

\frac{3\pi}{6}=90^\circ, then its reference angle is \frac{\pi}{2}

b)

\frac{5\pi}{6}=150^ \circ is in the second cuadrant, then its reference angle is 180^ \circ -150^{\circ}=30^{\circ}=\frac{\pi}{6}

c)

\frac{13\pi}{6}=390^\circ=360^\circ+30^\circ, then it is in the first cuadrant and the reference angle is 30^\circ =\frac{\pi}{6}.

d)

\frac{8\pi}{6}=240^\circ and it is in the third cuadrant, then its reference angle is 240^\circ -180^\circ=60^\circ=\frac{\pi}{3}

5 0
3 years ago
One of the angles is 26°. The second angle is complementary to the first angle. What is the measure of the third angle?
lubasha [3.4K]
2nd is 64 3rd is 90 all 3 = 180
6 0
3 years ago
Use the figure below to determine the length of sides b and c.
AnnyKZ [126]

Hi umm what figure I have no idea what you are talking about

4 0
3 years ago
Read 2 more answers
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