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3 years ago

Find X in each figure. Picture of figures in comments.

Mathematics

1 answer:

Bad White [126]3 years ago

4 0

A. 1/2(140-100) = 20
X = 20

B. 4^2 = 3 (x+3)
16 = 3x + 9
X = 7/3

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Jefferson Park sits on one square city block that measures 300 ft on each side. Sidewalks join opposite corners. About how long

Alex787 [66]

Hey there!

<span>Sqrt(300^2 + 300^2) </span>
<span>= 424.26 ft.
</span>
So the answer is 424 ft

Hope this helps!

3 0

3 years ago

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Prove: An odd number squared is an odd number. = (2n + 1)2

Mnenie [13.5K]

Answer:

${(2n + 1)}^{2} = 4 {n}^{2} + 4n + 1 = 2(2 {n}^{2} + 2n) + 1$

4 0

2 years ago

Plz help i don’t understand this type of math

Serga [27]

QRS = DRS + QRD
167 = x + 143 + x + 30
167 = 2x + 173
-2x = 173 - 167
-2x = 6
x = 6/-2
x = -3

DRS = x + 143
= (-3) + 143
= 140

7 0

3 years ago

Someone please help, its for a hw assignment I have due today. What is the equation of the line through (3, 7) that is perpendic

Brilliant_brown [7]

The required equation is:

$y=-\frac{6}{5}x+\frac{53}{5}$

Step-by-step explanation:

Let l_1 be the line through (-1, -2) and (5, 3)

and l_2 be the line we require which passes through (3,7)

We have to find the lope of l_1 first

$m_1=\frac{y_2-y_1}{x_2-x_1}\\=\frac{3-(-2)}{5-(-1)}\\=\frac{3+2}{5+1}\\=\frac{5}{6}$

we have to find the equation of line perpendicular to l1

The product of slopes of two perpendicular lines is -1

Let m_2 be the slope of l_2

Then

$\frac{5}{6}*m_2=-1\\m_2=-\frac{6}{5}$

The general slope-intercept form is:

y=mx+b

Putting the value of slope

$y=-\frac{6}{5}x+b$

To find the value of b, we will put (3,7) in the equation

$7=-\frac{6}{5}(3)+b\\7=-\frac{18}{5}+b\\b=7+\frac{18}{5}\\b=\frac{35+18}{5}\\b=\frac{53}{5}$

Putting the values of b and m in standard slope intercept form:

$y=-\frac{6}{5}x+\frac{53}{5}$

Hence,

The required equation is:

$y=-\frac{6}{5}x+\frac{53}{5}$

Keywords: Equation of line

Learn more about equation of line at:

#LearnwithBrainly

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3 years ago

An expression is a mathematical statement using numbers, operations, and variables true or false

Mariana [72]

Answer/Step-by-step Explanation:

True. Expressions cm be expressed using the above listed

3 0

3 years ago

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