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3 years ago

Help with this math

Mathematics

1 answer:

worty [1.4K]3 years ago

4 0

Answer:

Step-by-step explanation:

Mean- add all the numbers up and then divide them by how many numbers there are.

Median-The median is also the number that is halfway into the set. To find the median, the data should be arranged in order from least to greatest. If there is an even number of items in the data set, then the median is found by taking the mean (average) of the two middlemost numbers.

Mode-The mode of a data set is the number that occurs most frequently in the set. To easily find the mode, put the numbers in order from least to greatest and count how many times each number occurs.

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∆ABC is transformed with the center of dilation at the origin.

jonny [76]

Answer:

1/5

Step-by-step explanation:

We are to find the scale factor of the dilation that maps the pre-image of triangle ABC with vertices A(−3, 4), B(−1, 12) and C(4, −2) to the image triangle A'B'C' with vertices A' (−0.6, 0.8), B' (−0.2, 2.4) and C' (0.8, −0.4).

Center of dilation is at the origin.

To find the scale factor, we will divide the corresponding vertices of the image and pre-image.

A (−3, 4) ---> A' (−0.6, 0.8) = $\frac{-0.6}{-3} , \frac{0.8}{4}=(\frac{1}{5} , \frac{1}{5})$

B(−1, 12) ---> B' (−0.2, 2.4) = $\frac{-0.2}{-1} , \frac{2.4}{12} = (\frac{1}{5} , \frac{1}{5})$

C(4, −2) ---> C' (0.8, −0.4) = $\frac{0.8}{4} , \frac{-0.4}{-2} = (\frac{1}{5} , \frac{1}{5})$

Therefore, the scale factor of the dilation is 1/5.

3 0

3 years ago

#12-10: Factor this expression by dividing by the GCF first. 4h+24

AleksAgata [21]

$\huge{\boxed{4(h+6)}}$

Let's start by writing out their factors.

4: 1, 2, 4

24: 1, 2, 3, 4, 6, 8, 12, 24

The greatest factor that $4$ and $24$ have in common is $4$ .

Factor out $4$ from both terms. $\boxed{4(h+6)}$

6 0

3 years ago

Find the solution set. (x + 8)(x + 8) = 0

serg [7]

Answer:

Write the repested multiplication in exponential form then the only way an exponentiation can be 0 is when the base equals 0 then move the constant to the right-hand side and change its sign then your answer is x=-8

Step-by-step explanation:

4 0

3 years ago

Angle 1 and Angle 5 are examples of which type of angle pair?

NikAS [45]

Answer:

You forgot the image

Step-by-step explanation:

4 0

3 years ago

I need help super bad!!!!

Marysya12 [62]

4x+7y=47 /*4 ------>16x + 28y=188
5x-4y=-5 /*7 -------->35x-28y=-35

16x + 28y=188, add this two equations
35x-28y=-35

16x + 28y+35x-28y=188-35
16x +35x=188-35
51x =153m
x=3

5x-4y=-5
5*3-4y=-5
15-4y=-5
4y=15+5
4y=20
y=5

Answer (3,5), B

3 0

3 years ago