All categories

3 years ago

Please show work thank you

Mathematics

1 answer:

Ne4ueva [31]3 years ago

8 0

Answer: 70 mph

Step-by-step explanation:

You might be interested in

Solve the right triangle

hoa [83]

Answer:

is the right one

Step-by-step explanation:

8 0

3 years ago

Write an equation, in point-slope form, of the line that passes through the point (4, -3) with a slope -7.

Ilya [14]

Answer:

point-slope form:

y - 10 = -4(x - -2)

y - 10 = -4(x + 2)

---

slope-intercept form:

y - 10 = -4x - 8

y = -4x - 8 + 10

y = -4x + 2

Step-by-step explanation:

6 0

3 years ago

The absolute value of any complex number a + bi is the ___________ from (a, b) to (0, 0) in the complex plane.

Lyrx [107]

Answer:

distance

Step-by-step explanation:

Usually the absolute value of a complex number is called its magnitude. The squared magnitude is the algebraic quantity that's preferable to work with.

Let

$z = a+bi$

$|z|^2 = z^* z = zz^* = |a+bi|^2= (a+bi)(a-bi) = a^2 - i^2 b^2 = a^2+b^2$

$|a+bi| = \sqrt{a^2+b^2}$

That's the distance from the origin to (a,b)

3 0

3 years ago

Find the square root of the following (correct to three decimal place. (a) 2 1/12

Travka [436]

Answer:

1.443

Step-by-step explanation:

Hope it helps:)

6 0

3 years ago

Write the following decimal number in its equivalent fraction form.

Alecsey [184]

Answer:

-0.6666.... = - $\frac{2}{3}$

Step-by-step explanation:

Repeating decimals can be written as either 0.6666..., or as 0.6 with a small line over the top of the 6 to indicate it repeats. Repeating fractions are not put into fractions in the traditional way. If we had the terminating decimal 0.4, then we know to put the 4 over 10 and reduce:

$\frac{4}{10}=\frac{2}{5}$

However, with repeating decimals, instead of putting the number of the decimal over a value of 10, we put it over a value of 9. So, for the equivalent fraction form of -0.6 (repeating) we would get:

$\frac{6}{9}=-\frac{2}{3}$

4 0

3 years ago