Answer:
Step-by-step explanation:
domain represents the numbers at the x endpoints of a graph.
on the graph we see that on the left, the line ends when x is -4
on the right, the line ends when x is 4
the domain is
-4, 4
but notice how on the left there is an open circle
this will be written with a parentheses
( -4, 4
and notice how on the right there is a closed circle
this will be written with a bracket
(-4, 4]
so the answer is C
Answer:
![cos(G)=\frac{28}{53}](https://tex.z-dn.net/?f=cos%28G%29%3D%5Cfrac%7B28%7D%7B53%7D)
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
In the right triangle EFG
----> by CAH (adjacent side divided by the hypotenuse)
substitute the given values
![cos(G)=\frac{28}{53}](https://tex.z-dn.net/?f=cos%28G%29%3D%5Cfrac%7B28%7D%7B53%7D)
Answer:
$3.17
Step-by-step explanation:
3 soft drinks at $2.50 each → 3 x $2.50 = $7.50
3 soft drinks + 3 candy bars = $16.50
$7.50 + 3 candy bars = $16.50
3 candy bars = $9.50
1 candy bar = $9.50/3 = $3.17 (3s.f.)
this is a question on forming and solving equations. If you wish to explore more into this topic you can give me a follow on Instagram (learntionary) I'll be posting the notes for several topics and some tips as well!
Answer:X=15
Step-by-step explanation:
Combine the 5x and 9x then you move the 30 to the right side with 180 which gives you 14x=210 then you divide both sides.
If angle A and B are complementary that means,
Measure of angle A + Measure of angle B = 90°
(x+16)° + (x-12)° = 90°
x+16+x-12 = 90°
2x+4 = 90°
2x+4-4 = 90°-4 (Subtraction Property)
2x = 86°
2x/2 = 86/2 (Division Property)
x = 43°
So,
For the measure of angle A, Plug in the value of x
(x+16)° = 43+16 = 59° ( ANSWER)