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svet-max [94.6K]
3 years ago
14

Help math hurry! 20min left!!! 5 questions!

Mathematics
1 answer:
Thepotemich [5.8K]3 years ago
3 0
1 - 3
2 - 3
3 - C
4 - D
5 - C
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If 0° ≤ θ ≤ 90° and cosθ = 11/15 , what is the value of sin (90° - θ)?
igor_vitrenko [27]
11/15=0.7333
cos^{-1}(0.7333) =42.83342
sin(90-47.166572) = 0.7333

first, find the numeric value for 11/15
second to find theta, simply do the <em>inverse</em> cos (which is cos^-1) of the first answer.
now you know theta, just do the sin of 90 - theta and that's it!

since you know whatr cos(theta) is, you just take the inverse cos of that number to get theta and 'reverse' cos, essentially. you are just solving for theta, by reversing the cos function with cos^-1
please mark as brainliest!
7 0
3 years ago
Read 2 more answers
What is the slope of the line that passes through the points (4, 5) and (12, 7)?
blondinia [14]

Answer:

1/4

Step-by-step explanation:

To find slope, we use the formula rise over run (y2-y1 over x2-x1)

So first, our y's: 7-5=2

And our x's: 12-4=8

2/8 simplifies to 1/4

3 0
2 years ago
What is the value of v? 45(v−7)=2
luda_lava [24]
<span>45(v−7)=2
45v - 315 = 2
45v = 317
v = 317/45
v = 7 2/45 (7 and 2/45)</span>
7 0
3 years ago
Read 2 more answers
F(x) = x + 4<br> G(x) = x^2 + 4<br> Find (fog) (3)
Anika [276]
Answer: 17

Steps:

1. Plug in (3) into “x” of the g(x) equation:
g(3) = (3)^2 + 4
g(3) = 9 +4
g(3) = 13

2. Plug in g(3) value into “x” of the f(x) equation:
f(g(3)) = x + 4
f(g(3)) = 13 + 4
f(g(3)) = 17
5 0
3 years ago
How do you explain how to get h(t)=7(t-25)
Nutka1998 [239]
Hey There! :)

To Solve for t.
h(t)=7(t-25)
Distribute the brackets.
h(t)=7*t-7*25
h(t)=7t-175
Subtract 7t from both sides.
(h(t))-7t=(7t-175)-7t
(h(t)-7t=-175
h*t-7t=-175
Factor out variable, t.
t(h-7)=-175
Divide both sides by h-7.
(t(h-7))/h-7=(-175)/h-7
t=-175/h-7

Hope this helps!
-Benjamin




8 0
3 years ago
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