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2 years ago

What is the value of the expression below when z=10 3z-3

Mathematics

2 answers:

Bad White [126]2 years ago

8 0

27 is the correct answer the first Pearson set it up correct

love history [14]2 years ago

6 0

Answer:27

3(10)-3

30-3

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Write the standard form of the equation of a line if the point on the line nearest to the origin is at (6, 8).

Alchen [17]

Answer:

$\large\boxed{y=\dfrac{4}{3}x}$

Step-by-step explanation:

The line passes through the origin has an equation y = mx

m - slope

The formula of a slope of a line passes through the origin

and a point (x, y):

$m=\dfrac{y}{x}$

We have the point (6, 8). Substitute:

$m=\dfrac{8}{6}=\dfrac{8:2}{6:2}=\dfrac{4}{3}$

Finally:

$y=\dfrac{4}{3}x$

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3 years ago

How do you explain how to find the volume of a cylinder

N76 [4]

The formula is V=Bh You'd get the base (it's a circle so you'd have to do A=pie*radius square) Once you find the base, you mutliply it by the height

5 0

3 years ago

)) Ms. Terry runs the school cafeteria. In October, she had to order 15 cases of chocolate

Anna11 [10]

Answer:

I think number 2 is the answer, but 4 could be the answer.

7 0

2 years ago

Read 2 more answers

Construct a 99% confidence interval for the population standard deviation of white blood cell count (in cells per microliter). A

kogti [31]

Answer:

The correct option is 1.148 < σ < 6.015

Explanation:

The 99% confidence interval for the standard deviation is given below:

$\sqrt{\frac{(n-1)s^{2}}{\chi^{2}_{\frac{0.01}{2} }} }$

Where:

$\chi^{2}_{\frac{0.01}{2} }=18.548$

$\chi^{2}_{1-\frac{0.01}{2}}=0.676$

Therefore, the 99% confidence interval is:

$\sqrt{\frac{(7-1)2.019^{2}}{18.548} }$

$1.148$

Therefore, the option 1.148 < σ < 6.015 is correct

3 0

3 years ago

The vertex of a parabola is (-1.5, -12.5), and its y-intercept is (0, -8)

Olenka [21]

Best to find the equation of the parabola first:

Its equation is y+12.5 = (x+1.5)^2, or y = -12.5 + (x+1.5)^2

Check the first possible x-intercept: let x = -2. Does y come out to 0?

y = -12.5 + (-0.5)^2 = -12.5 + 0.25. This is not equal to 0, so (-2,0) is not an x-intercept of this parabola. Continue checking each possible x-intercept until you find the right one (or ones).

4 0

3 years ago