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3 years ago

EXTRA POINTS! FIND THE MISSING DIMENSION! NEED ASAP

Mathematics

2 answers:

yanalaym [24]3 years ago

7 0

Answer:

x = 10.5 in

Step-by-step explanation:

The rectangles are similar, thus the ratios of corresponding sides are equal.

that is $\frac{7}{2}$ = $\frac{x}{3}$ ( cross- multiply )

2x = 21 ( divide both sides by 2 )

x = 10.5

Igoryamba3 years ago

5 0

I think that X equals eight

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Which expression uses numbers and symbols to represent the statement “subtract 6 from 11, double the difference, and then add th

Xelga [282]

Answer: 2(11-6) + 3/4

Step-by-step explanation:

2(11-6) + 3/4

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2 years ago

What is the length of the side of the triangle below?<br> 200 cm<br> x cm<br> x cm

KIM [24]

Step-by-step explanation:

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3 years ago

Through (-1,4) and a perpendicular to 4y-2x=12

mart [117]

Answer:

Step-by-step explanation:

$\text{The slope-intercept form of an equation of a line:}\\\\y=mx+b\\\\m-\text{slope}\\b-\text{y-intercept}\\\\\text{Let}\\\\k:y=m_1x+b_1\\\\l:y=m_2x+b_2\\\\\text{then}\\\\k\ \perp\ l\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}\\\\k\ ||\ l\iff m_1=m_2$

$\text{We have the equation of a line in the standard form:}\ Ax+By=C.\\\\\text{Convert to the slope-intercept form:}\\\\4y-2x=12\qquad\text{add}\ 2x\ \text{to the both sides}\\\\4y-2x+2x=2x+12\\\\4y=2x+12\qquad\text{divide both sides by 4}\\\\\dfrac{4y}{4}=\dfrac{2x}{4}+\dfrac{12}{4}\\\\y=\dfrac{1}{2}x+3\to\boxed{m_1=\dfrac{1}{2}}$

$\text{Therefore}\ m_2=-\dfrac{1}{\frac{1}{2}}=-2.\\\\\text{Put the value of the slope and the coordinates of the given point (-1, 4)}\\\text{to the equation of a line:}\\\\4=-2(-1)+b\\\\4=2+b\qquad\text{subtract 2 from the both sides}\\\\4-2=2-2+b\\\\2=b\to b=2\\\\\bold{FINALLY:}\ y=-2x+2$

$\text{Convert to the standard form:}\\\\y=-2x+2\qquad\text{add}\ 2x\ \text{to the both sides}\\\\y+2x=-2x+2x+2\\\\2x+y=2$

4 0

3 years ago

If 1/4 of the population voted in an election what percent of the population did not vote

Liula [17]

Answer:

75%

Step-by-step explanation:

1/4 = 25%

100% - 25% = 75%

1 - 1/4 = 3/4

100 ÷ 4 = 25

25 × 3 = 75%

I hope this helps and that you have a great day! :)

<em>Ravenna</em>

8 0

3 years ago

Find the slope between points (-4, 8) and (-9, 0). <br> -8/5<br> 4/9<br> 8/5<br> undefined

daser333 [38]

Use the slope formula
m = (y2 - y1)/(x2 - x1)
m = (0 - 8)/(-9 - (-4))
m = (0 - 8)/(-9 + 4)
m = (-8)/(-5)
m = 8/5

Answer: Choice C) 8/5

6 0

3 years ago