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3 years ago

Need help with slope practice assignment eight greade

Mathematics

2 answers:

Viktor [21]3 years ago

6 0

Answer: Option D is correct. The function equation y= -16x^2 + 9x + 4

is non-linear.

Step-by-step explanation:

It is not linear because it is a quadratic function.

You can see this on the graph in the photo below:

, Hope this helps :)

Have a great day!!

Anettt [7]3 years ago

4 0

Pretty sure answer is d, lmk if you need further explaining and sorry if it’s wrong.

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Please help me write this equation

tatuchka [14]

The answer is, y = -1/3 - 3

5 0

3 years ago

Find the surface area of the cylinder formed by the net. Use 3.14 for π.

sineoko [7]

Answer:

138.16 square feet

Step-by-step explanation:

The surface area of the cylinder consists of one rectangle and two circles.

1. The radius of the circle is 4 ft, then the area of the circle is

$A_{circle}=\pi r^2 =\pi \cdot 4^2 =16\pi \ ft^2$

2. The width of the rectangle is 1.5 ft, the length of the rectangle is the circumference of the circle.

Find the circumference:

$C=2\pi r=2\pi \cdot 4=8\pi \ ft$

Hence,

$A_{rectangle}=1.5\cdot 8\pi =12\pi \ ft^2$

3. The surface area of the cylinder is

$SA=2A_{circle}+A_{rectangle}=\\ \\=2\cdot 16\pi +12\pi =32\pi +12\pi =44\pi \approx \\ \\\approx 44\cdot 3.14=138.16\ ft^2$

8 0

3 years ago

Which of the following is the solution to the equation x + 7.4 = 49.8?

miss Akunina [59]

X+7.4=49.8
-7.4 -7.4
x=49.8-7.4

x= 42.4

3 0

3 years ago

Read 2 more answers

What is the square footage

Vladimir [108]

A of parallelogram = bh
= 23ft x 13 ft
= 299 ft^2

7 0

3 years ago

I need 20 characters blah blah blah blah blah blah blah blah blah blah

worty [1.4K]

Answer:

Below it is shown the procedure and that +3 is one rational zero.

Explanation:

The function is:

$f(x)=7x^3-5x^2-63x+45$

According to the rational roots theorem, the possible rational roots of a polynomial are the negative and positive quotients of the factors of the constant term (45 in this case) divided by the factors of the coefficient of the highest degree term (7 in this case).

Then, the possible rational roots are the divisors of 45 divided by the divisors of 7.

Divisors of 45: ±1, ± 3; ± 5, ±9, ±15, ± 45

Divisors of 7: ±1, ±7

Then, the possible rational roots are:

±1, ±1/7, ±3, ±3/7, ±5, ±5/7, ±9, ±9/15, ±15, ±15/7, ±45, ±45/7

Now you should test them to find out whether they are factors or not.

You need to find just one ration zero. Thus , I will show you the procedure, with one of them: use 3.

Then, you have to divide the original polynomial by x - 3.

The sythetic division is:

1. Write the root and the coefficients in this form:

+3 | 7 - 5 - 63 +45

=========================

2. Copy the first coefficient, 7, below the horizontal line:

+3 | 7 - 5 - 63 +45

=========================

3. Multiply the root (3) by 7, write the product below the second coefficient, and find the sum: 3 × 7 = 21; 21 + (-5) = 16

+3 | 7 - 5 - 63 +45

| 21

=========================

7 16

4. Multiply the root (3) by 16, write the product below the next coefficient, and find the sum: 3 × 16 = 48; 48 + (-63) = - 15

+3 | 7 - 5 - 63 +45

| 21 +48

=========================

7 16 -15

5. Multiply the root (3) by -15, write the product below the next coefficient, and find the sum: 3 × (-15)= - 45; -45 + 45 = 0

+3 | 7 - 5 - 63 +45

| 21 +48 -45

=========================

7 16 -15 0

Since the final total, which is the remainder of the division, is zero, +3 is a rational root of the polynomial.

You can now test others, to find if they are factors too.

6 0

3 years ago

Read 2 more answers