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2 years ago

2x+3y=12 write in equation form

Mathematics

2 answers:

kirza4 [7]2 years ago

3 0

2x+3y=12
proper way to do it bro, download photomath

Soloha48 [4]2 years ago

3 0

The answer is y=-4+2x/3 divide each term by 3 and simplify

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Find the value of x 117,145,133,140,119,125

andreev551 [17]

Answer:

here u go hope this is right

Step-by-step explanation:

x + 779 = 900

x = 900- 779

x = 121

4 0

2 years ago

Sin α = 21/29, α lies in quadrant II, and cos β = 15/17, β lies in quadrant I Find sin (α - β).

Sever21 [200]

$\sin(\alpha-\beta)=\sin\alpha\cos\beta-\cos\alpha\sin\beta$

$\sin\alpha=\dfrac{21}{29}\implies \cos^2\alpha=1-\sin^2\alpha=\dfrac{400}{841}$

Since $\alpha$ lies in quadrant II, we have $\cos\alpha$ , so

$\cos\alpha=-\sqrt{\dfrac{400}{841}}=-\dfrac{20}{29}$

$\cos\beta=\dfrac{15}{17}\implies\sin^2\beta=1-\cos^2\beta=\dfrac{64}{289}$

$\beta$ lies in quadrant I, so $\sin\beta>0$ and

$\sin\beta=\sqrt{\dfrac{64}{289}}=\dfrac8{17}$

So

$\sin(\alpha-\beta)=\dfrac{21}{29}\dfrac{15}{17}-\left(-\dfrac{20}{29}\right)\dfrac8{17}=\dfrac{475}{493}$

8 0

3 years ago

What is the volume of the cylinder

evablogger [386]

The answer is the first option, you multiply 14^2 by 9

4 0

3 years ago

coldgirl [10]

Answer:

...

Step-by-step explanation:

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2 years ago

72% and 89% confirm that the mean theses two are scores is 80.5%

german

Answer:

correct. the mean of 72 and 89 is 80?5

Step-by-step explanation:

find the mean to confirm it.

(a+b)/2

72+89= 161

161/2=80.5

3 0

2 years ago