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OlgaM077 [116]
3 years ago
5

Help please with this algebra problem!

Mathematics
1 answer:
natka813 [3]3 years ago
4 0
F(a)=2a+8
f(a+h)=2(a+h)+8=2a+2h+8
(f(a+h)-f(a))/h=(2a+2h+8-2a-8)=2h/h=2
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The sum of x and 10 is 5
Jobisdone [24]

Answer:

x=-5

Step-by-step explanation:

This is the sentance turned into an equation: x+10=5

Solved: x+10=5

x=5-10

x=-5

5 0
3 years ago
I'm having a hard time with this question so someone help please
bulgar [2K]

Answer:

  7.7 km

Step-by-step explanation:

This question is asking you to find the third side of a triangle in which two sides and an angle not between them are given. The law of sines provides the necessary relationships.

<h3>Law of Sines</h3>

The Law of Sines tells you that triangle side lengths are proportional to the sine of the opposite angle. For this triangle TPJ, the relation is ...

  t/sin(T) = p/sin(P) = j/sin(J)

We are given T=68°, p=5.2 km, t=7.5 km, and we are asked to find the length of j, the TP distance.

<h3>Setup</h3>

We know the sum of angles in a triangle is 180°, and the sine of an angle is equal to the sine of its supplement. This lets us fill in the Law of Sines equation like this:

  7.5/sin(68°) = 5.2/sin(P) = j/sin(68°+P) . . . . . solve for j

<h3>Solution</h3>

This can be solved in two steps. First, we find angle P, then we use that to find length j.

  sin(P) = 5.2/7.5 × sin(68°) ≈ 0.642847

  P = arcsin(0.642847) ≈ 40.0045°

Now, we can find j:

  j = 7.5 × sin(68° +40.0045°)/sin(68°) ≈ 7.693 . . . km

The distance from the tower to the plane is about 7.7 km.

__

<em>Additional comment</em>

We have used T, P, and J to refer to the vertices at the tower, plane, and jet.

The triangle can also be solved using the Law of Cosines. In that case, the missing side will be the solution to a quadratic equation with irrational coefficients.

3 0
2 years ago
8×25×23 strategies 4 grade
DerKrebs [107]
8×25=200
and 
200×23=4600

so 8×25×23=4600
4 0
3 years ago
Where should you endorse a check
Leokris [45]
You would have to mail it off 
7 0
3 years ago
Read 2 more answers
A line passing through the point (7, 6) has a slope of 2.
Masja [62]
An equation in point-slope form is
y - y1 = m (x - x1)

Your point is (7,6) and your slope is 2
y1 is the y coordinate of your point (in this case 6)
x1 is the x coordinate of your point (in this case 7)
m is your slope (in this case 2)

Now you just have to plug these numbers in:
y - 6 = 2 (x - 7)
8 0
3 years ago
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