2 years ago

Select the three expressions that are equivalent to −3(4 − 3x) + (5x − 2)

Mathematics

1 answer:

Stells [14]2 years ago

4 0

Answer : a , c , d

You might be interested in

I need the answer. !’

EleoNora [17]

Answer:

B) -9

Step-by-step explanation:

31+2= 33 --> -33 + 49= --> 16

-5x-5= 25

16 -25 = -9

3 0

2 years ago

Find a cartesian equation for the curve and identify it. r = 10 tan(θ) sec(θ)

Vilka [71]

For a cartesian equation
$x=r\cos\theta \ and \ y=r\sin\theta \\ \\ \cos\theta=\frac{x}{r} \ and \ \sin\theta=\frac{y}{r} \\ \\ \tan\theta=\frac{\sin\theta}{\cos\theta}=\frac{y}{r}\cdot\frac{r}{x}=\frac{y}{x} \\ \\ \sec\theta=\frac{1}{\cos\theta}=\frac{r}{x}$

Given r = <span>10 tan(θ) sec(θ)
$r=10\tan\theta\sec\theta=10\cdot\frac{y}{x}\cdot\frac{r}{x} \\ \\ \Rightarrow10y=x^2 \\ \\ \Rightarrow y= \frac{1}{10} x^2$

Therefore,</span>the curve is a parabola opening upward with vertex (0, 0).

3 0

2 years ago

Alguem me ajuda<br>por favor

andre [41]

Answer:

sorry I'm confused boy sorryy

6 0

3 years ago

Which equation is equivalent to

marshall27 [118]

Answer:

C) 29x=5

reason:

first, distribute the parentheses
this will make your equation 8-20x=6-3+9x
simplify to get 8-20x=3+9x
add 20x to both sides to get 8=3+29x
subtract 3 from both sides to get 5=29x

3 0

2 years ago

The sum of ∠X and ∠Y is 90°. Which statement is TRUE?

Nadya [2.5K]

Answer:

the answer is that both x and y are acute

8 0

2 years ago