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3 years ago

14

Need help asap in the middle of a test I really don’t understand this please help ASAP !?!

1 answer:

Dmitriy789 [7]3 years ago

7 0

Exam contents are prohibited here.

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Find the midpoint of the segment that has endpoints at<br> (a+b, a-b) and (a, b).

Hunter-Best [27]

Answer:

((2a+b)/2 , a/2)

Step-by-step explanation:

The midpoint is the mean/average of both the x and y values.

Our x values are a+b and a

Our y values are a-b and b

The midpoint x value is (a+b + a ) /2 = (2a + b)/2

The midpoint y value is (a-b + b) /2 = (a)/2

The midpoint combines these two values to get ((2a+b)/2 , a/2) as our midpoint

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3 years ago

An ant travels at speed of 3 inches per second. How many feet will the ant travel in 2 hours?

GarryVolchara [31]

64,800 inches in 2 hours I think

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3 years ago

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You are 5 feet tall and cast an 8-foot shadow. A lamppost nearby casts a shadow that is 20 feet. Which equation can you use to s

aleksandrvk [35]

I believe the answer is the first option. Tell me if i'm wrong. :)

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3 years ago

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determine the value of x for which r parallels s. then find the measure of angle 1 and the measure of angle 2measure angle 1= 50

Maslowich

According to the picture, angles 1 and 2 have the same measure because they are corresponding angles. Make equal both expressions for 1 and 2 and find x.

$\begin{gathered} 50-2x=110-42x \\ 42x-2x=110-50 \\ 40x=60 \\ x=\frac{60}{40} \\ x=\frac{3}{2} \end{gathered}$

x is 3/2. Replace this value in both expression to find the measure of each angle.

$\begin{gathered} \measuredangle1=50-2x \\ \measuredangle1=50-2(\frac{3}{2}) \\ \measuredangle1=50-3 \\ \measuredangle1=47 \\ \measuredangle2=110-42x \\ \measuredangle2=110-42(\frac{3}{2}) \\ \measuredangle2=110-63 \\ \measuredangle2=47 \end{gathered}$

The measure of these angles is 47°

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1 year ago

Solve the linear system using multiplication Elimination.<br><br> 4х + Зу = 8<br> X - 2y = 13

motikmotik

X=5, y=-4
(5,-4)
do you need the work?

5 0

3 years ago