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natulia [17]
3 years ago
15

Use the figure to find the measures of the numbered angles. a 107 b mm​

Mathematics
1 answer:
sveticcg [70]3 years ago
6 0
Angle 1 is 107
Angle 2 is 73
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The hypotenuse in a right triangle is 13 cm. Of the other two sides one is 7 cm longer than the other determine the lengths of t
slamgirl [31]

Assuming x represents the length of the first side.

Use pythagorean theorem to solve:

<span>a^2</span> + <span>b^2</span> = <span>c^2</span>

<span>x^2</span> + <span><span>(x+7)^</span>2</span> = <span>13^2</span>

<span>x^2</span> + <span><span>x^2</span>+14x+49</span> = 169

<span>2<span>x^2</span></span> + 14x - 120 = 0

Solve the quadratic equation using the quadratic formula.

At the end, you will get side lengths of #(-14 ± 34) / 4, or -12 and 5

SInce a negative triangle length is impossible, 5 is the value of x and 5 + 7 is the value of x + 7, which makes 12.

The formula for area of a right triangle is A = <span>b<span>h/2</span></span>

A = <span><span>b<span>(h)</span></span>2</span>

A= <span><span>12<span>(5)</span></span>2</span>

A = <span>30c<span>m^<span>2</span></span></span>

8 0
3 years ago
Two sections of a class took the same quiz. Section A had 15 students who had a mean score of 80, and section B had 20 students
faltersainse [42]
B, because when you add 90+80 you get 170 and 170/2 = 85
8 0
3 years ago
Read 2 more answers
Please need help with this
yanalaym [24]
Obtuse is the answer
3 0
3 years ago
Read 2 more answers
3(2-b) &lt; 10-3(b-6) please help
Sonbull [250]
3(2-b)<10-3(b-6)
6-b<5(b-6)
6-b<5b-30
Let's make "b".......2
6-(2)<5(2)-30
4<10-30
4<-20
In this case, this is a false statement. You can make "b" any number and I chose 2. I hope this helped!
7 0
3 years ago
Read 2 more answers
Help me with my homework​
Kay [80]

Answer:

a.\frac{x+10}{5} = 9.5

b. $37.50

Step-by-step explanation:

To find out how much the 5 were paying in total, we can add the bill and the tip. This gives us x + 10. Since there are 5 people and they are splitting the bill equally, the total amount would be divided by 5 to get the amount each person pays: \frac{x+10}{5}. We already know the amount they each paid, as it is given as $9.50. Both expressions represent the same thing, do we can set them equal to each other:

9.5 = \frac{x+10}{5}

Now, we can solve.

First, we can multiply by 5 on both sides to get:

47.5 = x + 10

And then subtract 10:

x = 37.5

This means the bill before the tip was $37.50

4 0
3 years ago
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