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Anna [14]
3 years ago
8

Pls help and show workings

Mathematics
1 answer:
NemiM [27]3 years ago
3 0
The answer is C. The slope formula, y2-y1 over x2-x1, which can be remembered as rise over run, can be used to solve. The y2 is 7 as it is the second y and then 1, the first y, is subtracted from it. 7-1=6. After this, you find the second x which is 3, and subtract -6 from it, meaning that you add it as you are subtracting a negative and they cancel out. You now have 3-(-6), or 3+6 on the bottom and 7-1 on the top. 7-1=6 and 3+6=9. The answer is the 6/9 and can be simplified down to 2/3 because of their shared greatest common factor, 3. Hope this helps.

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Which graph represents f(x) = 6 cos (4pix)
vazorg [7]
Look at the picture below!!

If this helped mark me brainliest pls!!

5 0
3 years ago
Caleb bought stock in a company two years ago that was worth xx dollars. During the first year that he owned the stock, it incre
Hunter-Best [27]

Answer:

  1.2144xx

Step-by-step explanation:

The multiplier of value for the first year was (1 +38%) = 1.38.

The multiplier of value for the second year was (1 -12%) = 0.88.

Then the multiplier of value for the two years was ...

  1.38×0.88 = 1.2144

The value of the stock after 2 years was ...

  1.2144xx

_____

<em>Comment on the variable</em>

We have used the variable given in the problem statement (xx). If you intend something different, replace xx with the variable you intend.

5 0
3 years ago
What is the area of parallelogram abcd? HELP THIS IS TIMED​
Anastaziya [24]

Answer:

13.04 square units

Step-by-step explanation:

Since this is a parallelogram, we only need to solve for the sides of 2 sides.

We can use the distance formula.

The distance from A --> D :

A(3,6) and D(2,2)

2 - 3 = -1

-1^2 = 1

2 - 6 = -4

-4^2 = 16

1 + 16 = 17

\sqrt{17}

The distance from A --> B :

A(3,6) and B(6,5)

6 - 3 = 3

3^2 = 9

5 - 6 = -1

-1^2 = 1

9 + 1 = 10

\sqrt{10}

Multiply.

\sqrt{10}*\sqrt{17}=13.04

*<em>Rounded to the nearest hundreth</em>

8 0
4 years ago
Find the perimeter of this figure to the nearest hundreth use 3.14 as an approximate for pi​
maks197457 [2]

Answer: 40.56ft.

Step-by-step explanation:

First, lets find the perimeter of the half circle: c = 2pi(r)

pi = 3.14

r = 4

3.14 * 4 = 12.56

12.56 * 2 = 25.12

Then, because it is only have a circle, divide by 2.

25.12/2 = 12.56

10 + 10 + 8 + 12.56 = 40.56

5 0
3 years ago
the mean of 30 numbers is 150.it was detected on rechecking that one value of 165 was wrongly copied as 135.find the correct mea
N76 [4]

Answer:

151

Step-by-step explanation:

m=150cm

n=30

new mean =(m*n+165-135)/n

=(150*30+165-135)/30

=(4500+30)/30

=4530/30

=453/3

=151

therefore

correct mean =151

Hope this helps :D

6 0
3 years ago
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