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defon
3 years ago
6

Can someone check my work?

Mathematics
1 answer:
Jobisdone [24]3 years ago
7 0
All good I believe.. I confused on a couple but they look good so far:) hope this helps
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If y =- 5x + 3, find the value of x when y = 13.
zmey [24]

Answer:

x=2

Step-by-step explanation:

You would first subsitute the y with 13. The you would subtract 3 from 3 and 13. Then you would have  10=5x. Then you would divide 5 by 5 and 10. You will get x = 2  

:)

3 0
3 years ago
Besides the 90° angle measure, what are the other two angle measures of a right triangle with side lengths 5, 12, and 13? Round
TEA [102]
In the right triangle, the longest side is the hypotenuse.
Let α be the angle opposite to the side with a length of 12 units, <span>then according to the Law of sines:

</span>\frac{13}{sin90^o}= \frac{12}{sin \alpha }   \ \ \to \ \ sin \alpha = \frac{12 \cdot sin90^o}{13}=  \frac{12*1}{13}  \approx 0.923 \ \ \to \ m\angle  \alpha \approx 67^o

In a triangle, the three interior angles always add to 180° ⇒

third angle = 180 - 90 - 67 = 23°

Answer:
67° and 23°  (to the nearest degree).
4 0
3 years ago
Read 2 more answers
An Equation is shown.<br><br> 8/10 + ___ = 93/100<br><br> What is the missing fraction?
s2008m [1.1K]
The missing fraction is 13/100
3 0
3 years ago
Read 2 more answers
In the function y = a(x – h)2 + k
coldgirl [10]

Answer:

h is the horizontal shift

Step-by-step explanation:

y = a(x – h)^2 + k

This is the equation for a parabola in vertex form

The vertex is ( h,k) and it is shifted from (0,0)

h is the horizontal shift and k is the vertical shift

8 0
3 years ago
Read 2 more answers
HELP URGENT PLEASE!!!!!!!!!!!!!!
leonid [27]

Answer:

The supplement of 89° is the angle that when added to 89° forms a straight angle (180° ).

Step-by-step explanation:

4 0
3 years ago
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