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3 years ago

Help please!!! i don’t understand

Mathematics

1 answer:

Ierofanga [76]3 years ago

5 0

Answer:

The answer is D: 990

Step-by-step explanation:

G(-10) = f( 3(-10) )

g(-10) = f(-30)

F (-30) = (-30) ^2 -3(-30)

900 + 90

990

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Solve each trigonometric equation such that 0 ≤ x ≤ 2????. Give answers in exact form.

sveticcg [70]

Answer:

(a) $x=\frac{5\pi }{3}$

(b) $x=\frac{\pi }{8}$

Step-by-step explanation:

It is given that $0\leq x\leq 2\pi$

(a) We have given equation $2sinx+\sqrt{3}=0$

$sinx=\frac{-\sqrt{3}}{2}$

$x=sin^{-1}(-0.866)$

$x=\frac{-\pi }{3}=2\pi -\frac{\pi }{3}=\frac{5\pi }{3}$

(b) $tan(2x)=1$

$2x=tan^{-1}1$

$2x=\frac{\pi }{4}$

$x=\frac{\pi }{8}$

7 0

4 years ago

Finding the slope from points

nekit [7.7K]

Answer:

m = -3

Step-by-step explanation:

The formula to find the slope of the line is :

slope = m = $\frac{y_1 - y_2}{x_1-x_2}$

Given that the two coordinates of the line are :

( -1 , - 7 ) ⇒ ( x₁ , y₁ )

( 1 , -13 ) ⇒ ( x₂ , y₂ )

Let us solve now.

m = ( y₁ - y₂ ) ÷ ( x₁ - x₂ )

m = ( -7 - ( -13)) ÷ ( -1 - 1 )

m = ( -7 + 13 ) ÷ ( -2 )

m = 6 ÷ -2

m = -3

5 0

2 years ago

Read 2 more answers

A building has a ramp to its front doors to accommodate the handicapped. If the distance from the building to the end of the ram

bija089 [108]

The ramp forms a right triangle with legs 5 and 22.
Find the length of the hypotenuse using the Pythagorean theorem,
c=raiz((5)^2+(22)^2)= 22.56 ft
Answer
 the ramp is 22.56 ft long.

7 0

3 years ago

100 points and brainliest for correct answer!

MatroZZZ [7]

Answer B.

∑fx=1637,∑fx
2
=127663,∑f=21
x
ˉ
=Mean=
∑t
∑fx

=77.95
σ
2
=
∑f
∑fx
2

−(
x
ˉ
)
2
=
21
127663

−(77.95)
2
=2.987
σ=1.728

4 0

2 years ago

A certain company gives its salespeople a bonus every six months. This bonus is calculated by averaging (taking the mean of) the

Tanzania [10]

Answer:

The answer is C. $510.

I have just took the test.

6 0

3 years ago