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3 years ago

HELP ME ASAP PLEASE!!!!! LOOK AT SCREENSHOT (10 PTS)

Mathematics

1 answer:

malfutka [58]3 years ago

8 0

Answer: i would say A and D but i'm not sure of the others

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Draw graphs of the following lines: The line through the origin having a slope of 1/4

KengaRu [80]

I think its 1 on the graph correct me if im wrong

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3 years ago

-3a-3=2n+3p solve for a

Rasek [7]

Solve for a by simplifying both sides of the equation, then isolating the variable.

a = -1 -2n/3 -p

3 0

3 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

Explain why the simultaneous equations y = -2/3x + 4/3 and 12x + 18y = 24 have an infinite number of solutions. What can you ded

denpristay [2]

Answer:

It's the same equation

Step-by-step explanation:

12x+18y=24

y=(-12x+24)/18

y=-2/3x+4/3

The intersect is the solution, so there are infinitely many solutions

4 0

3 years ago

Help is much appreciated x

RoseWind [281]

Answer:

23.2 cm

Step-by-step explanation:

For the angle of 53.2 deg, x is the opposite leg. The hypotenuse is 29 cm.

sin A = opp/hyp

sin 53.2 deg = x/29 cm

x = 29 cm * sin 53.2 deg

x = 23.2 cm

6 0

3 years ago