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3 years ago

Factor the expression using the GCF #18=12+42 #21=60 - 36 #24=48+80 #27=18-12

Mathematics

2 answers:

Vesnalui [34]3 years ago

3 0

Answer:

12 + 42 = 54

Step-by-step explanation:

12 = 10 and 2

42= 40 and 2

40 + 10 = 50

2+2 = 4

Sliva [168]3 years ago

3 0

12+42=54 is the answer

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In right triangle ABC with right angle C, AC=9 and the measure of angle B=30 degree. Find the length of AB.

pshichka [43]

$From\ triangle\ with\ angles: 30^{\circ},60^{\circ},90^{\circ}\\\
|AB|=a\sqrt{3}\\
|AC|=a=9\\\\
|AB|=9\sqrt{3}\\\\
Length\ of\ |AB|\ is\ equal\ to\ 9\sqrt{3}.
$

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3 years ago

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Herman is traveling 125 miles from his house to the beach by car. Herman plans to stop for lunch when the ratio of the distance

aliya0001 [1]

Answer:

250 miles

Step-by-step explanation:

The given distance between the house and the beach is 125 miles.

Let $x$ miles be the distance between the house and the lunch stop.

So, at the time of the lunch stop, he already traveled $x$ miles, the remaining distance is the distance between the lunch stop and the beach.

Let $y$ miles be the remaining distance, so

$y=125-x.$

Give that the ratio of the distance he has traveled, $x$ , to the distance he still has to travel, $y$ , is $2:3$ ,i.e

$x:y=2:3$

$\Rightarrow \frac x y =\frac 2 3$

$\Rightarrow \frac {x}{125-x}=\frac 2 3$

$\Rightarrow 3\times x=2\times(125-x)$

$\Rightarrow 3\times x=2\times125-2\timesx$

$\Rightarrow 3 x=250-2x$

$\Rightarrow 3x-2x=250$

$\Rightarrow x=250$

Hence, the distance traveled by Herman when he stops for lunch is 250 miles.

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3 years ago

A bag of marbles has 8 red marbles, 4 blue marbles and 5 white marbles. Alyssa picks a marble at random. Is it more likely that

OleMash [197]

Answer:

A. a red marble

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Let m stand for number of minutes
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.12m-2=25.04-2
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The number of minutes is 192 minutes.
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3 years ago

Determine whether one figure is a dilation of the other.

Alika [10]

The answer is no.

A dilation is when a shape is scaled up or down to create a similar shape. The only thing that changes is the lengths of the sides. The angles will stay the same.

In this case, the original has angles 54, 29, and 97.

After the transformation the triangle has the angles 29, 59, and 92.

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3 years ago