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3 years ago

Please help I need 7-9 please

Mathematics

1 answer:

DanielleElmas [232]3 years ago

6 0

Answer:

-2 hope this helps

Step-by-step explanation:

bc u subtrscted them

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What is the mean of this data? 7,5,5,3,2,2

Vikentia [17]

Answer:

Step-by-step explanation:

The mean is the average of a data set. It can be found by adding up all of the values in a data set and then dividing it by the number of values in the data set.

The values in this data set;

$7,5,5,3,2,2$

The number of values in this data set,

$6$

Find the mean;

$\frac{sum\ of\ vlaues}{number\ of\ values}$

$=\frac{7+5+5+3+2+2}{6}\\\\=\frac{24}{6}\\\\=4$

8 0

2 years ago

Pls answer ill give brainliest

Sergeeva-Olga [200]

Answer:

Step-by-step explanation:

the angle is opposite to 60 so it is also 60

60-45 = 15

Hope this helps :)

7 0

3 years ago

What is the decimals in tenth that less than 3.81 but greater than 3.0

polet [3.4K]

3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8

5 0

3 years ago

The midpoint of AB is M(-5,1). If the coordinates of A are (-4,-5), what are the coordinates of B?

Elenna [48]

<u>ANSWER:</u>

The midpoint of AB is M(-5,1). The coordinates of B are (-6, 7)

<u>SOLUTION: </u>

Given, the midpoint of AB is M(-5,1).

The coordinates of A are (-4,-5),

We need to find the coordinates of B.

We know that, mid-point formula for two points A $(x_{1}, y_{1})$ and B $(x_{1}, y_{2})$ is given by

$M\left(x_{3}, y_{3}\right)=\left(\frac{x_{1}+x_{2}}{2}, \frac{y_{1}+y_{2}}{2}\right)$

Here, in our problem, $\mathrm{x}_{3}=-5, \mathrm{y}_{3}=1, \mathrm{x}_{1}=-4 \text { and } \mathrm{y}_{1}=-5$

Now, on substituting values in midpoint formula, we get

$(-5,1)=\left(\frac{-4+x_{2}}{2}, \frac{-5+y_{2}}{2}\right)$

On comparing, with the formula,

$\frac{-4+x_{2}}{2}=-5 \text { and } \frac{-5+y_{2}}{2}=1$

$-4+\mathrm{x}_{2}=-10 \text { and }-5+\mathrm{y}_{2}=2$

$\mathrm{x}_{2}=-6 \text { and } \mathrm{y}_{2}=7$

Hence, the coordinates of b are (-6, 7).

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3 years ago

Grace starts with 100 milligrams of a radioactive substance. The amount of the

love history [14]

Answer:

100 is grace's initial amount. w is how much of the substance is being decrased each week. in ryan's equation, 1 is 100% of the substance, so the initial amount, and 0.4 is the amount that is being decreased.

Step-by-step explanation:

8 0

3 years ago

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