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Kitty [74]
2 years ago
7

Help with my homework

Mathematics
1 answer:
irinina [24]2 years ago
6 0
The answer is B, there’s no solution.
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Hey guys its me again its me ghriuhr9h so more points yaaaaay
RideAnS [48]

Step-by-step explanation:

thanks for the free points!

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5 0
3 years ago
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If tan ⁡x=12/5, and 0°
Charra [1.4K]

The value of sin(2x) is \frac{120}{169}

Explanation:

Given that tan x =\frac{12}{5}

The formula for sin(2x) is \sin (2 x)=2 \sin x \cos x

Since, \tan x=\frac{o p p}{a d j}

Also, it is given that tan x =\frac{12}{5}

Thus, opp=12 and adj=5

To find the hypotenuse, let us use the pythagoras theorem,

\begin{aligned}h y p &=\sqrt{12^{2}+5^{2}} \\&=\sqrt{144+25} \\&=\sqrt{169} \\&=13\end{aligned}

Now, we can find the value of sin x and cos x.

\sin x=\frac{\text { opp }}{h y p}=\frac{12}{13}

\cos x=\frac{a d j}{h y p}=\frac{5}{13}

Now, substituting these values in the formula for sin 2x, we get,

\begin{aligned}\sin (2 x) &=2 \sin x \cos x \\&=2\left(\frac{12}{13}\right)\left(\frac{5}{13}\right) \\&=\frac{120}{169}\end{aligned}

Thus, the value of sin(2x) is \frac{120}{169}

8 0
2 years ago
NO LINKS!!!!! Write 5 summary for the data below. Show your work.
ankoles [38]

Answer:

lower \: quartile =  \frac{1}{4}  \times 8 \\  =  {2}^{nd}  \\  = 3

upper \: quatile =  \frac{3}{4}  \times 8 \\  = 6 {}^{th}  \\  = 7

median =  \frac{1}{2}  \times 8 \\  = 4 {}^{th}  \\  = 5

5 0
2 years ago
A(x+1)(x-1)+b(x-2)(x+1)+(x+1)^2=9x-x-10 What is a+b?
igor_vitrenko [27]

a(x+1)(x-1)+b(x-2)(x+1)+(x+1)^2=9x^2-x-10

(x+1)(a(x-1)+b(x-2)+(x+1))=(x+1)(9x-10)

a(x-1)+b(x-2)+x+1=9x-10

Now this equation is much simpler!

(a+b)x-a-2b+x+1=9x-10

(a+b)x-a-2b=8x-11

(a+b-8)x-a-2b-11=0

a+b-8=(a+2b-11)/x

I can't solve it 3 variables and 1 equations means infinite answers so yea.

4 0
3 years ago
an elevator in a skyscraper rises 240 feet in 1/5 minute. What is the elevator's rate in feet per minute?
Nutka1998 [239]

Answer:

1200

Steps to answer the problem:

1/5 of a minute goes in to 1 minute 5 times

5 x 240 = 1200

8 0
2 years ago
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