3 years ago

Find the vertex and x-intercepts for 39x^2+38x+8.

Mathematics

1 answer:

azamat3 years ago

7 0

Vertex:(-19/39,-49/39)
x-int: (-4/13,0) and (-2/3,0)

You might be interested in

Write an expression that represent the sum of a number and 12

antiseptic1488 [7]

Answer:

5+12

there is no equals sign in an expression so it is just that

6 0

2 years ago

Read 2 more answers

Evaluate the following integral in cylindrical coordinates triple integral 1/(1+x^2+y^2) dzdxdy z=0..2 y=0..square root(1-x^2) x

sertanlavr [38]

In cylindrical coordinates, we take

$x=r\cos\theta$

$y=r\sin\theta$

$z=z$

so that $\mathrm dx\,\mathrm dy\,\mathrm dz=r\,\mathrm dr\,\mathrm d\theta\,\mathrm dz$ .

We have

$1+x^2+y^2=1+r^2$

and the integral is

$\displaystyle\int_0^2\int_0^\pi\int_0^1\frac r{1+r^2}\,\mathrm dr\,\mathrm d\theta\,\mathrm dz=\frac{\ln2}2\int_0^2\int_0^\pi\mathrm d\theta\,\mathrm dz=\boxed{\pi\ln2}$

8 0

2 years ago

What is the slope of a line parallel to the line whose equation is 3x – 4y = 8

liq [111]

Hi there! The answer is C.

We can find the slope of this line by making y the subject of the equation.

$3x - 4y = 8 \\ - 4y = - 3x + 8 \\ y = \frac{ - 3}{ - 4} x + \frac{8}{ - 4} \\ y = \frac{3}{4} x - 2$

Now we can see that the slope of this line (which is positioned in front of x) is 3/4. Therefore, the slope of any line parallel to this one is 3/4 as well. The answer is C.

7 0

2 years ago

Complete each congruence by naming the corresponding angle or side.

Lisa [10]

Step-by-step explanation:

angle k equal to angle m ,,,

4 0

2 years ago

Paint costs 24.99$ a gallon. How much paint can he buy if he has 90$, how many gallons can he buy? Round answer to nearest tenth

Molodets [167]

Answer:

Step-by-step explanation:

3 0

3 years ago