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Vilka [71]
2 years ago
12

Having trouble with this, help please? I will give brainliest.

Mathematics
1 answer:
yaroslaw [1]2 years ago
4 0

Answer:

a)     7x-15=20

b)   \frac{20+15}{7}

c)  5

Step-by-step explanation:

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If a vehicle originally worth $27000 decreases in value by 9% each year, after 4 years, it will only be worth $_____.
Novosadov [1.4K]

Answer:

$18515.24

Step-by-step explanation:

27000 x .91

24570

24570 x .91

22358.7

22358.7 x .91

20346.417

20346.417 x .91

18515.23947 =

$18515.24

8 0
2 years ago
If Q = 44°<br> then m ST = ______ degrees<br> R = _____ degrees
melomori [17]

Basically, Q is an angle. An angle has an initial side and a terminal side. The initial side is QS, The terminal side is QT. The initial side and the terminal side both intersect the circle. The initial side intersects the circle at point S. The terminal side intersects the circle at point T. This forms arc TS.
<span>Angle Q is what is known as an inscribed angle. Anytime you have an inscribed angle, it will always cut across some arc. The measure of that angle will always be 1/2 the measure of the arc.
</span><span>We're given that angle Q = 44 degrees. This means that the measure of arc TS will be twice the measure of angle Q.
</span>

angle(q)=angle(r) so ans =44

3 0
3 years ago
Triangle abc is an equilateral triangle with ac =6; find the area of this triangle.
Tju [1.3M]
The area of an equilateral triangle of side length "s" is
.. A = (√3)/4*s^2

Your triangle will have an area of
.. A = (√3)/4*6^2 = 9√3 . . . . . square units
7 0
4 years ago
Can someone help me pls
Vlad [161]

Answer:

70°

Step-by-step explanation:

If arc BY is 40, angle BAY is 20.

BAC is 90.

90-20 is 70.

m<YAC=70

8 0
3 years ago
If f(x) = 2x^2+3 and g(x)= 5x, evaluate the following: a. f(g(x)) b. g(g(3)) c. g(f(-2))
marissa [1.9K]

Answer:

A = 50x^2+3

B = 75

C = 55

Step-by-step explanation:

f(x)=2x^2+3\\g(x)=5x

A. f(g(x))

2(5x)^2+3\\2(25x^2)+3\\=50x^2+3

B. g(g(3))

5(5(3))\\5(15)\\=75

C. g(f(-2))

g(2(-2)^2+3)\\g(8+3)\\g(11)\\5(11)\\=55

8 0
2 years ago
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