All categories

2 years ago

Help #3??? I really need help!

Mathematics

2 answers:

Over [174]2 years ago

6 0

Answer:

It’s A

Step-by-step explanation:

QveST [7]2 years ago

4 0

Answer:

The answer is C

Step-by-step explanation:

When you expand the 2 binomials, you get

(-5x + 3)(6x - 2) you get the following 4 terms.

-30x^2 + 18x + 10x + 6 Combine the middle 2 terms

-30x^2 + 28x + 6

The answer is either A or C. I can't tell you why B and D are there. I don't know why anyone would choose - 15x^2 but that is not correct.

So you now have to find out which is true for the domain. There are no values that this quadratic can't have for its domain, so A isn't true. The answer is C

You might be interested in

Segment AB has point A located at (8,9). If the distance from A to B is 10 units, which of the following could be used to calcul

Ulleksa [173]

Answer:

3 one is correct............

7 0

2 years ago

Midtown antiques has found that sales has decreased 6% from last year. Sales this year are $144,974 find the amount of last year

riadik2000 [5.3K]

8698 is the answer to this question

3 0

2 years ago

Prove that an = 4^n + 2(-1)^nis the solution to

olga nikolaevna [1]

Answer:

See proof below

Step-by-step explanation:

We have to verify that if we substitute $a_n=4^n+2(-1)^n$ in the equation $a_n=3a_{n-1}+4a_{n-2}$ the equality is true.

Let's substitute first in the right hand side:

$3a_{n-1}+4a_{n-2}=3(4^{n-1}+2(-1)^{n-1})+4(4^{n-2}+2(-1)^{n-2})$

Now we use the distributive laws. Also, note that $(-1)^{n-1}=\frac{1}{-1}(-1)^n=(-1)(-1)^{n}$ (this also works when the power is n-2).

$=3(4^{n-1})+6(-1)^{n-1}+4(4^{n-2})+8(-1)^{n-2}$

$=3(4^{n-1})+(-1)(6)(-1)^{n}+4^{n-1}+(-1)^2(8)(-1)^{n}$

$=4(4^{n-1})-6(-1)^{n}+8(-1)^{n}=4^n+2(-1)^n=a_n$

then the sequence solves the recurrence relation.

4 0

3 years ago

Point (6, 0) lies on the<br><br> X-axis<br> Oy-axis<br> line y = x

tresset_1 [31]

Answer:

x - axis

Step-by-step explanation:

Since, y-coordinate of point (6, 0) is zero.

Hence, it lies on x - axis.

4 0

2 years ago

Read 2 more answers

Which of the following is an example of a quantitative variable?

Mashcka [7]

Answer:

D. the number of hours the veterinarian works a week

7 0

2 years ago