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Scrat [10]
2 years ago
7

F(x) = 3 x² + 5 x - 7 and g(x) = x² + 8 x + 10

Mathematics
1 answer:
Korolek [52]2 years ago
8 0

f(x) + g(x) \\ 3x {}^{2}  + 5x - 7 + x {}^{2}  + 8x + 10 \\ 4x {}^{2}  + 13x + 3

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Find the value of each variable. If you give the decimal value, round to the nearest tenth.
DiKsa [7]

u = 10.4 and v = 12

Solution:

In the given 2 sides of a triangle are 60°, 60°.

Sum of all the angles of a triangle = 180°

60° + 60° + third angle = 180°

⇒ third angle = 180° – 60° – 60°

⇒ third angle = 60°

All angles are equal, therefore the given triangle is an equilateral triangle.

⇒ All sides are equal in length.

⇒ v = 12

The line drawn from the top angle divides the triangle into two equal parts

and the line is perpendicular.

12 ÷ 2 = 6

Using Pythagoras theorem,

\text{Base}^2+\text{Opposite}^2=\text{Hypotenuse}^2

⇒ 6^2+\text{opposite}^2=12^2

⇒ 36+\text{opposite}^2=144

⇒ \text{opposite}^2=108

⇒ \text{opposite}=6\sqrt3=10.4

⇒ u = 10.4

Hence, u = 10.4 and v = 12.

7 0
3 years ago
Identify proportional realationships from graphs<br> There’s also a none option
kkurt [141]

Answer:

B is one is there anymore options

Step-by-step explanation:

3 0
2 years ago
An airplane flew for 4 hours at a speed of a miles per hour (mph), and at (x + 10) mph for next 4 hours. What expression can be
Akimi4 [234]

Answer:

I think it would be C in my cass

Step-by-step explanation:

5 0
3 years ago
What is x? where would i find it?는 무엇이고 내가 그것을 어떻게 찾을까?​
kvv77 [185]

If you are implying that the triangles are similar, then the short and long legs are in proportion:

3\div 2 = x\div 8

Solving for x, you have

x = \dfrac{8\cdot 3}{2} = 12

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777dan777 [17]

Answer: f(-3) = -27 & f(3) = 27

Step-by-step explanation:

(-3)^3

-27

(3)^3

27

3 0
3 years ago
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