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2 years ago

Help? With my math please. Will mark brainlist URGENT

Mathematics

1 answer:

vaieri [72.5K]2 years ago

7 0

Answer:

1 -51

2 m and n, and a and b

Step-by-step explanation:

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7 has been subtracted from the product of x and 7=

steposvetlana [31]

Answer:

7x - 7

Step-by-step explanation:

Product of x and 7 = 7x

7 minus 7x

7x - 7

Hence the expression is :

7x - 7

5 0

3 years ago

Solve the system by substitution.<br> y = -6x<br> - 2x - y = 16

vivado [14]

Answer:

X=4 and Y= -24

Step-by-step explanation:

Step 1: −6x for y in−2x−y=16:

−2x−y=16

−2x−−6x=16

4x=16

4x/4=16/4

x=4

----------------------------------------------------------------------

y=−6x

y=(−6)(4)

y=−24

y=-24

3 0

2 years ago

Find the mean <br> 5,-15,7,-13,1

andriy [413]

Answer:

− 4

Step-by-step explanation:

The mean of a set of numbers is the sum divided by the number of terms.

4 0

3 years ago

Read 2 more answers

How to get the minimum and maximum temperature

sukhopar [10]

Put them in order from lowest to highest. Identify the lowest number in the data set, as well as the highest number. Subtract the lowest number in the set from the highest number. The resulting value is the range of the set of temperature values.

6 0

2 years ago

PLS HELP!! GIVING BRAINLIEST TO FIRST CORRECT ANSWER!!+50 POINTS

Elena-2011 [213]

Answer(s):

154 in²
3168/7 km²
38.5 m²

Revising the area of a circle formula

We already know that the area of a circle is expressed as $\pi r^{2}$ .

The "r" variable is known as the radius.

<h2><u>Solving each problem given:</u></h2><h3>Solving Problem 4:</h3>

We are given the radius of circle, which is 7 in. Let us substitute the radius in the formula. Once substituted, we can simplify the expression obtained to determine the area of the circle shown in the picture.

$\implies \pi (7)^{2}$

$\implies \huge\text{(}\dfrac{22}{7} \huge\text{)}(7)^{2}$ <em> </em>

$\implies \huge\text{(}\dfrac{22}{7} \huge\text{)}(7)(7)$

$\implies (22)(7)$

$\implies 154 \ \text{in}^{2}$

<h3>Solving Problem 5:</h3>

In this problem, we are given the diameter to be 24 kilometers. Since the radius of the circle is half the diameter, we can tell that the radius of the circle is 24/2 kilometers, which is 12 kilometers.

$\implies \pi (12)^{2}$

$\implies \huge\text{(}\dfrac{22}{7}\huge\text{)} (12)^{2}$

$\implies \huge\text{(}\dfrac{22}{7}\huge\text{)} (12)(12)$

$\implies \dfrac{3168}{7} \ \text{km}^{2}$

<h3>Solving Problem 6:</h3>

We are given the radius of circle, which is 3.5 in. Let us substitute the radius in the formula. Once substituted, we can simplify the expression obtained to determine the area of the circle shown in the picture.

$\implies \pi (3.5)^{2}$

$\implies \huge\text{(}\dfrac{22}{7}\huge\text{)} (3.5)^{2}$

$\implies \huge\text{(}\dfrac{22}{7}\huge\text{)} (3.5)(3.5)$

$\implies \huge\text{(}\dfrac{22}{2}\huge\text{)} (3.5) = (11) (3.5)$

$\implies 38.5 \ \text{m}^{2}$

Note: <em>The radius given in this problem was not clearly stated. If the radius I stated here, is incorrect, please notify me in the comments. Thanks!</em>

Learn more about area of circles: brainly.com/question/12414551

3 0

2 years ago