All categories

2 years ago

Sub :- Linear Equations

Mathematics

1 answer:

vesna_86 [32]2 years ago

5 0

Hiiiiiiiiiiiii

The value of x is 1 & y is 2 (a).

Steps are attached.

______

꧁✿ ᴿᴬᴵᴺᴮᴼᵂˢᴬᴸᵀ2222 ✬꧂

You might be interested in

1<br> Sam can run 8 miles in 2 hours. At this rate, how far will he be in 9 hours.

krok68 [10]

Answer: I think 28 miles

Step-by-step explanation:

you add 8 miles every 2 hours until you reach 9 hours and since 9 is an old number you add 4 instead.

6 0

2 years ago

Find the value of tan(sin^-1(1/2))

suter [353]

If you know that $\sin\dfrac\pi3=\dfrac12$ , then you know right away

$\tan\left(\sin^{-1}\dfrac12\right)=\tan\dfrac\pi3=\dfrac1{\sqrt}3=\dfrac{\sqrt3}3$

###

Otherwise, you can derive the same result. Let $\theta=\sin^{-1}\dfrac12$ , so that $\sin\theta=\dfrac12$ . $\sin^{-1}$ is bounded, so we know $-\dfrac\pi2\le\theta\le\dfrac\pi2$ . For these values of $\theta$ , we always have $\cos\theta\ge0$ .

So, recalling the Pythagorean theorem, we find

$\cos^2\theta+\sin^2\theta=1\implies\cos\theta=\sqrt{1-\sin^2\theta}=\sqrt{1-\left(\dfrac12\right)^2}=\dfrac{\sqrt3}2$

Then

$\tan\theta=\tan\left(\sin^{-1}\dfrac12\right)=\dfrac{\sin\theta}{\cos\theta}=\dfrac{\frac12}{\frac{\sqrt3}2}=\dfrac1{\sqrt3}=\dfrac{\sqrt3}3$

as expected.

5 0

3 years ago

Read 2 more answers

Helpppp with this :>

Paul [167]

Answer:

x=9

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

If jamie completed 5 chores, about how much money did she earn?

QveST [7]

Answer:

5(chore payment)

Step-by-step explanation:

since we dont know how much money the chore is worth it would be 5 times the money

4 0

2 years ago

Help please. Geometry.

Luda [366]

Answer:

Trapezoid i think

7 0

3 years ago

Read 2 more answers