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il63 [147K]
4 years ago
9

Please help i dont understand this at all

Mathematics
1 answer:
mylen [45]4 years ago
7 0

Answer:

=a

Step-by-step explanation:

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Please need help fast. Look at the picture.<br><br> Please explain.
Zigmanuir [339]
The answer is 17

This is because 1 + 2 must equal 180 as they are in a straight line.
So 4x + 2 + 110 = 180
Take away 110 from both sides
4x + 2 = 70
Take away 2 from both sides to get 4x = 68. Finally, divide both sides by 4 to get x = 17
7 0
3 years ago
What is the distance from (−4, 0) to (2, 5)? Round your answer to the nearest hundredth. (4 points)
butalik [34]

\bf ~~~~~~~~~~~~\textit{distance between 2 points} \\\\ (\stackrel{x_1}{-4}~,~\stackrel{y_1}{0})\qquad (\stackrel{x_2}{2}~,~\stackrel{y_2}{5})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ d=\sqrt{[2-(-4)]^2+[5-0]^2}\implies d=\sqrt{(2+4)^2+(5-0)^2} \\\\\\ d=\sqrt{36+25}\implies d=\sqrt{61}\implies d\approx 7.81

6 0
4 years ago
Find the area of quadrilateral ABCD with vertices A(0, 4), B(4, 1), C(1, -3), and D(-3, 0).
Hunter-Best [27]

Answer: 25

Step-by-step explanation:

3 0
3 years ago
A plane traveled 240 miles. The trip was with the wind. It took 3 hours. The trip back was into the wind. The trip back took 6 h
sveta [45]

Answer:

Plane speed is 60 miles/hour

Wind speed is 20 miles/hour

Step-by-step explanation:

Lets suppose the speed of the plane in still air is s and speed of the wind is w and since speed in the formula below equals speed of the plane plus the wind's speed so speed=s+w for this journey with the wind

Speed=\frac{Distance}{Time}

Distance=Speed*Time

For the first journey the trip with the wind:

Distance=Speed*Time\\240=(s+w)(3)\\240/3=s+w\\s+w=80

Here we got our first equation for the second equation we use the information from the second trip which was into the wind. Which means the speed here would be speed=s-w

Distance=Speed*Time\\240=(s-w)*6\\240/6=s-w\\s-w=40

so now we got our two equations adding both equations would result into the following:

s+w=80\\s-w=40\\2s=120\\s=60

so speed of the plane is 60 miles/hour put the value of s in any our two equations to calculate the wind speed, lets take the first equation:

s+w=80\\60+w=80\\w=80-60\\w=20

so the wind speed is 20 miles/hour

8 0
3 years ago
Beth took out a 12-year loan for $35,000 for a new pool. If the interest rate is 10.2%, how much will she pay in interest?
nikitadnepr [17]

Answer:

Step-by-step explanation:

$7,840

8 0
3 years ago
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