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taurus [48]
3 years ago
10

For what value of x is the value of f(x)=4x-2 equal to 18

Mathematics
2 answers:
tamaranim1 [39]3 years ago
7 0
F(5) = 4*5-2
f(5)= 20-2
f(5) = 18 the value of x is equal to 5 to make the function equal to 18.
mina [271]3 years ago
5 0
F(x) = 4(5) - 2 → f(x) = 20 - 2 → f(x) = 18
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Serhud [2]

Answer:

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8 0
3 years ago
4. If A = (-4, -5) and B = (-1, -10), what is the length of segment AB? Round your answer to the nearest hundredth.
HACTEHA [7]

Answer:

5.83095 or √34

Step-by-step explanation:

Find the difference between coordinates:

(x2-x1) = (-1 - -4) = 3

(y2-y1) = (-10 - -5) = -5

Square the results and sum them up:

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7 0
3 years ago
Trigonometry:
Trava [24]

A. The approximate height of the building is 100 m

B. We can use the arc length formula to obtain an approximation of BC since angle A is small.

A.

The approximate height of the building is 100 m

To find the approximate height of the building, we consider the diagram.

From the diagram, we have that using trigonometry,

tanA = BC/AB

Now

  • A = 0.05 radians,
  • BC = height of building and
  • AB = 2 km = 2000 m
<h3 /><h3>Finding the value of BC</h3>

So, making BC subject of the formua, we have

BC = ABtanA

Substituting the values of the variables into the equation, we have

BC = ABtanA

BC =2000tan0.05

BC = 2000 × 0.05

BC = 100 m

So, the approximate height of the building is 100 m

B.

We can use the arc length formula to obtain an approximation of BC since angle A is small.

<h3 /><h3>Arc Length Formula</h3>

We know that the arc length formula L = rФ where

  • r = radius and
  • Ф = angle in radians
<h3 /><h3>The approximate height</h3>

Now BC = ABtanA

We know that Ф ≅ tanФ when Ф is small.

<h3 /><h3>The comparison</h3>

So, BC = AB × A which is the arc length formula with

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  • r = AB and
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So, we can use the arc length formula to obtain an approximation of BC since angle A is small.

Learn more about approximate height of building here:

brainly.com/question/3144976

7 0
2 years ago
What is the value of the expression 11 − (fraction 1 over 2)4 ⋅ 48?<br> 3<br> 5<br> 8<br> 9
olga55 [171]
11-\left(\dfrac{1}{2}\right)^4\cdot48=11-\dfrac{1}{2^4}\cdot48=11-\dfrac{1}{16}\cdot48=11-\dfrac{48}{16}=11-3=8
8 0
3 years ago
I need help with this, please.
Elena-2011 [213]

Answer:

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