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4 years ago

3rd grade math? My daughter and I couldn't figure this out. Help?

Mathematics

1 answer:

stiks02 [169]4 years ago

7 0

So if Ethan is running on a track that is $\frac{3}{8}$ miles long, and he ran across the track twice, then you need to add $\frac{3}{8}$ + $\frac{3}{8}$ to see what fraction is equivalent to the distance Ethan ran. So the answer will be $\frac{3}{4}$ .

I know this question is two weeks old, but I hope this helps you with your daughter's future math problems, have a BLESSED and wonderful as well as a safe day! :-)

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Graph h(x)=7 sin x ?

dedylja [7]

Answer:

The graph of h(x) is shown below.

Step-by-step explanation:

The given function is

$h(x)=7\sin x$

The general form of sine function is

$f(x)=a\sin(bx+c)+d$

Where, a is amplitude, b is period, c is phase shift and d is vertical shift.

So, the amplitude of the given function is 7, period is 1, phase shift is 0 and vertical shift is 0.

It means the minimum value of function is -7 and maximum value is 7.

Therefore the points on the function are (0,0), $(-\frac{\pi}{2},-7),(\frac{\pi}{2},7)$ .

The graph of function is shown below.

4 0

4 years ago

Please answerr will mark the brainliest!!!!

Pachacha [2.7K]

Answer:

Octagon ; Regular

Step-by-step explanation:

The polygon has 8 sides and all the sides are of equal measurement.

Hope this helped you!!

Please mark as Brainliest!!

6 0

3 years ago

If z = 3cis30°, z3 in rectangular form is _____ +_____ i.

oee [108]

The rectangular form is 3c/30=z
Z=10 3c//30
10z+70x + 17x-10z

6 0

3 years ago

The temperature at 1:00 P.M was 35 degrees. The temperature changes -4 degrees per hour.how long will it take to reach -1 degree

Romashka-Z-Leto [24]

35 - 4h = -1
-4h = -1 - 35
-4h = -36
h = -36/-4
h = 9 <=== it will take 9 hrs

6 0

4 years ago

1/x+a=b, solve for x. im lost

mina [271]

Answer:

Step-by-step explanation:

First, Let's take a on both sides:

$\frac{1}{x}+a-a=b-a$

$\frac{1}{x}=b-a$

Remember that 1/x is called the reciprocal. For example the reciprocal of 2 is 1/2 and the reciprocal of 5 is 1/5. If we read the equation is telling us: "Reciprocal of x is b - a". Therefore, $\frac{1}{b-a}=x$ .

Another way to solve it is to multiply x on both sides. Then,

$\frac{x}{x}=(b-a)*x$

$1=(b-a)*x$

Then divide by (b-a). Remmebre to treat b-a as a factor:

$\frac{1}{(b-a)}=\frac{(b-a)*x}{(b-a)}$

Cancelling (b-a) on the right hand side:

$\frac{1}{(b-a)}=x$

7 0

4 years ago