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Olin [163]
2 years ago
6

Please help these are the last 3 I need help on. I will mark brainliest if it lets me

Mathematics
1 answer:
kondaur [170]2 years ago
5 0

Answer:

  • C, C, B

Step-by-step explanation:

Q1

<u>Translation 4 units left and 8 units down:</u>

  • < -4, -8 >

Correct option is C

Q2

Point A is (-2, -1)

<u>Dilation by a scale factor of  -3:</u>

  • A' = (-2(-3), -1(-3)) = (6, 3)

Correct option is C

Q3

As per the graph, the translation is:

2 units left and 8 units up

<u>The rule is: </u>

  • (x - 2, y + 8)

Correct option is B

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Please someone help I am so lost.
HACTEHA [7]
You'll have to do the actual multiplication here:

  3(n+2)(4n+1)         1        4n^2 + n + 8n + 2
 -------------------- = -----  *  ---------------------------
            6                   2                    1

or (1/2) (4n^2 + 9n + 2), which, after mult., becomes

(1/2)(4n^2) + (1/2)(9n) + 1


This simplifies to 2n^2 + (9/2)n + 1

Therefore, write (1/2) in the first box and (1) in the second box.
7 0
3 years ago
What is the sum of a geometric sequence 1, 3, 9, ... if there are 12 terms?
attashe74 [19]
We know that
a1=1
a2=3
a3=9
a2/a1=3/1----> 3
a3/a2=9/3----> 3
<span>common ration r is equal to 3
number of terms n  is 12

The </span><span>Sum of geometric series is given by the formula
</span>Sum=a1*[1-r<span>^n]/[1-r]
</span>Sum=1*[1-3^12]/[1-3]-----> Sum=[1-3^12]/[1-3]----> [3^12-1]/[3-1]
<span>Sum=531440/2-----> 265720

the answer is
265720



</span>
4 0
3 years ago
At a Halloween fair, you see a huge Ferris wheel. There are ten seats on the wheel, with two people placed on each seat. Every m
netineya [11]

Answer:

answer

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
What is the slope of the line through (-3, 3) and (-1,-1)?
stira [4]
It’d be B, -2

You move right one space and then down two spaces
5 0
2 years ago
Please answer asap. there are two pics :)
Thepotemich [5.8K]

Answer:

\boxed{\sf A. \ 0.34}

Step-by-step explanation:

The first triangle is a right triangle and it has one acute angle of 70 degrees.

We can approximate \sf \frac{WY}{WX} from right triangle 1.

The side adjacent to 70 degrees is WY. The side or hypotenuse is WX.

The side adjacent to 70 degrees in right triangle 1 is 3.4. The side or hypotenuse is 10.

\sf \frac{3.4}{10} =0.34

8 0
3 years ago
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