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2 years ago

PLEASEE HELPP with this problem!!! can you find x and y???

Mathematics

1 answer:

KATRIN_1 [288]2 years ago

4 0

X = 47°
y = 90°

These are the angles, comment if you would like to know the explanation but these are the answers

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What is the difference between 100 and 10

Alik [6]

Answer:

Step-by-step explanation:

100 - 10 = 90

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2 years ago

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Evaluate the expression when x = –15. –4x – 11 A. –71 B. –49 C. 49 D. 71

Usimov [2.4K]

-4x-11. Plug -15 in for x into the equation. -4(-15)-11. That gives you 49. Therefore, making choice C correct.

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3 years ago

What are the coordinates of the vertex of the function f(x)=x^2+10x−3? (–5, –28) (–5, 28) (5, –28) (5, 28)

polet [3.4K]

Answer:

(-5,-28)

Step-by-step explanation:

Given

$f(x)=x^2+10x - 3$

Required

Find the coordinates of the vertex

Given that the function is a quadratic function;

The general form of a quadratic function is

$f(x)= ax^2+bx +c$

By comparison;

$a = 1\ b = 10\ and\ c = -10$

To calculate the coordinates of the vertex;

we start by calculating the x-coordinate;

$x = \frac{-b}{2a}$

Substitute 10 for b and 1 for a

$x = \frac{-10}{2*1}$

$x = \frac{-10}{2}$

$x = -5$

Substitute $x = -5$ in the given function;

$y=x^2+10x - 3$

$y=(-5)^2+10*-5 - 3$

$y=25-50 - 3$

$y=-28$

<em>Hence, the coordinates of the vertex is (-5,-28)</em>

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3 years ago

For the graph below, what should the domain be so that the function is at least 200?

sveta [45]

Y = 2x² + 30x + 200
y = 2(x² + 15x + 100)

x² = x*x
100 ⇒ 1 x 100 ; 2 x 50 ; 4 x 25 ; 5 x 20 ; 10 x 10

200 = 2x² + 30x + 200
0 = 2x² + 30x + 200 - 200
0 = 2x² + 30x + 0
0 = 2(x² + 15x + ?)

<span>−5 ≤ x ≤ 20</span>

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3 years ago

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sleet_krkn [62]

Answer:

ok so to solve this you need to do base x height then divide that by 2

Step-by-step explanation:

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3 years ago