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3 years ago

Need help!! 20 points!!! image attached

Mathematics

1 answer:

Radda [10]3 years ago

3 0

Answer:

Step-by-step explanation:

There are a couple of things you need to understand before this makes sense. First of all, if these 2 triangles are congruent to each other, each corresponding side and angle have the exact same measure. Also, pay close attention to the triangle congruency statement. If the first angle mentioned in the first triangle is angle E, and the first angle mentioned in the second triangle is angle K, then E and K have the exact same measure. The same goes for angle f and angle L; likewise for angle G and angle M. The next super-important-you-HAVE-to-know-this-about-triangle thing is the Triangle Angle-Sum Theorem which says that all the angles of a triangle add up to equal 180 degrees.

We are given that angle E is 60 and angle F (an angle in the same triangle as E) is 35. That means that angle G has to be 180 - 60 - 35 which is 85. Angle G is congruent to angle M, so angle M also measures 85. Second choice down.

Learn your triangle stuff...it doesn't go away all through Geometry class!

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user100 [1]

It depends if Ashley was on the call for seconds too,if there can be a remainder , if so then it would be 3 min. and 47 sec.

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3 years ago

Consider circle H below.

hram777 [196]

We have been given a circle H, in which length of arc XY is 78 miles and measure of arc XY is 70 degrees. We are asked to find the radius of circle.

We will use arc length formula to solve our given problem.

$\text{Arc length}=2\pi r\cdot \frac{\theta}{360^{\circ}}$ , where,

r = Radius of circle,

$\theta$ = Central angle corresponding to arc.

We know that the measure of central angle that corresponds to arc XY will be equal to measure of arc XY.

$78=2\cdot 3.14\cdot r\cdot \frac{70^{\circ}}{360^{\circ}}$

$78=2\cdot 3.14\cdot r\cdot \frac{7}{36}$

$78= 3.14\cdot r\cdot \frac{7}{18}$

$78= r\cdot \frac{21.98}{18}$

$r\cdot \frac{21.98}{18}=78$

$r\cdot \frac{21.98}{18}\cdot \frac{18}{21.98}=78\cdot \frac{18}{21.98}$

$r=63.8762511373$

Upon rounding to nearest hundredth, we will get:

$r\approx 63.88$

Therefore, the radius of circle H is approximately 63.88 miles.

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4 years ago

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AfilCa [17]

Answer:

Step-by-step explanation:

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3 years ago

Write 0.002358 in scientific notation.

statuscvo [17]

The answer is
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6 0

4 years ago

PLEASE HELP I HAVE NO TIME AND I NEED THESE DONE!!!!!

Studentka2010 [4]

Question 1. 5b + 2 = 17

Step 1. Subtract 2 from both sides of the equation.

5b+2-2=17-2

Step 2. Then simplify.

5b=15

Step 3. Finally divide by 5.

5b/5=15/5

Answer: b=3

Question 3.

Step 1. Subtract 9 from both sides.

9+4b-9=17-9

Step 2. And simplify.

4b=8

Step 3. Finally divide by 4.

4b/4=8/4

Answer: b=2

Hope this helps! :)

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4 years ago

Read 2 more answers