3 years ago

The angle between the minute hand and hour hand of a clock is 90°. What time is it?

Mathematics

1 answer:

Andrei [34K]3 years ago

7 0

Answer:

3:00.

Step-by-step explanation:

if it exactly 90 degrees you are looking for, your answer would be 3:0:0.

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How to show the tens fact you used. write the difference. <br> 12-7=____<br> 10-___=____

prisoha [69]

The first answer is 5,but i don't know about the second one. (sorry)

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3 years ago

What is 7.2 times 10 to the 7th power times 14.6 x 10 to the 5th power?

Alexxx [7]

7 x $10^{7}$ times 14.6 x $10^{5}$

<em>Multiply 7 and 14.6 and add exponents</em>

Final Answer 102.2 and $10^{5}$

hope that helps :)

6 0

3 years ago

Read 2 more answers

The slope f′(x) at each point (x,y) on a curve y=f(x) is given, along with a point (a,b) on the curve. Use this information to f

Montano1993 [528]

$f'(x)=\dfrac{4x}{1+7x^2}$

Integrating gives

$f(x)=\displaystyle\int\frac{4x}{1+7x^2}\,\mathrm dx$

To compute the integral, substitute $u=1+7x^2$ , so that $\frac27\,\mathrm du=4x\,\mathrm dx$ . Then

$f(x)=\displaystyle\frac27\int\frac{\mathrm du}u=\frac27\ln|u|+C$

Since $u=1+7x^2>0$ for all $x$ , we can drop the absolute value, so we end up with

$f(x)=\dfrac27\ln(1+7x^2)+C$

Given that $f(0)=10$ , we have

$10=\dfrac27\ln1+C\implies C=10$

so that

$\boxed{f(x)=\dfrac27\ln(1+7x^2)+10}$

7 0

4 years ago

Find the least common multiple of 20, 4, and 5

Salsk061 [2.6K]

Answer:

LCM = 20

Step-by-step explanation:

You need to make everything into 20. Luckily, 4X5 is 20 and vise versa.

4 0

3 years ago

What is the area of the triangle

allochka39001 [22]

Answer:

the area is 60

Step-by-step explanation:

Triangle area fourmula is (h*b)/2

8*15=120 120/2=60

A=60

8 0

4 years ago