All categories

2 years ago

What are the zeros of the function defined by x +x-12?

Mathematics

1 answer:

Bezzdna [24]2 years ago

8 0

Answer:

Step-by-step explanation:

(x + 4)(x - 3)=0

x + 4 = 0

x = -4

x - 3 = 0

x = 3

answer B

You might be interested in

Please help me, I CANT fail this.

Annette [7]

Answer:

Step-by-step explanation:

4 0

3 years ago

If f(x) = 2x2 5x, find f(3b).

frez [133]

F(x) = 2x^2 + 5x
f(3b) = 2(3b)^2 + 5(3b) = 2(9b^2) + 15b = 18b^2 + 15b

7 0

3 years ago

Pls help me with this equation

Zanzabum

Answer:

x = 20 degree

Step-by-step explanation:

Hope this helps u !!

4 0

3 years ago

In right triangle PQR , PQ=12 cm and QR=5cm .What is cos R?

Juliette [100K]

Answer:

cosR = $\frac{5}{13}$

Step-by-step explanation:

assuming the right triangle has ∠ Q = 90° with legs 5 and 12

then this is a 5- 12- 13 right triangle with hypotenuse PR = 13 cm

then

cosR = $\frac{adjacent}{hypotenuse}$ = $\frac{QR}{PR}$ = $\frac{5}{13}$

7 0

2 years ago

Graph this function

galben [10]

Solve the equation to get values for x and y.

For example,

When x is 0,

y = 1

You have one point on the line (0,1)

Now, when y = 0,

x = 36/5 = 7.2

You have one more point on the line (7.2,0)

Plot these points on the x and y axes.

Draw a straight line joining these two points. ( I hope you can plot the points)

5 0

3 years ago