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Bess [88]
3 years ago
12

If x = 4, y = 2 and z = 1 then xz (4y - 2z) is: 861, 24, 46, or 40. Help please.

Mathematics
1 answer:
dybincka [34]3 years ago
8 0
(4)(1) * (4(2)-2(1))
4 * (8-2)
4*6
24
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&lt;B<br>Round your answer to the nearest hundredth.<br>2<br>А<br>3<br>?<br>B​
Svet_ta [14]

Answer:

∠ B ≈ 41.81°

Step-by-step explanation:

Using the sine ratio in the right triangle

sin B = \frac{opposite}{hypotenuse} = \frac{AC}{AB} = \frac{2}{3} , thus

B = sin^{-1}(\frac{2}{3} ) ≈ 41.81° ( to the nearest hundredth )

5 0
3 years ago
A line passes through the points (12,2) and (18,3).What is the equation in slope-intercept form
ICE Princess25 [194]

Answer:


Step-by-step explanation: so to find slope it’s y2-y1/x2-x1

Slope is 1/6

Y = 1/6x + b

Plug in one set of points to find b Idek if u need to find it but

2 = 1/6(12) + b

2 = 6  + b

2-6 = -4

Y = 1/6x -4

8 0
3 years ago
I need help with this one
Butoxors [25]

Answer:

2 2/3

Step-by-step explanation:

8 0
3 years ago
Tessa is in the track team. For practice and exercise, she runs 2.25 miles each day. At the end of 14 days, how many total miles
lidiya [134]
2.25 miles in 1 day

1day=2.25mi

14days=x miles

 1day           14days
_______ =  ________
 2.25mi          x mi

Cross multiply
1x=31.5
divide both sides by 1
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5 0
3 years ago
Read 2 more answers
Write the slope-intercept form of the equation of each line.
gregori [183]

Greetings!

Answer:

2y = x - 6

Step-by-step explanation:

First, we must find the slope of the current equation.

This is the number in front of the x.

Seeing as this is -2x, the slope of this line is -2

When finding the slope of a line perpendicular, you need to find the \frac{-1}{slope}

So, in this case it is:

\frac{-1}{-2}

The negatives cancel out which leave \frac{1}{2}

So the gradient is \frac{1}{2}


Now, to find the equation of a line, you need to use:

y - y1 = m(x - x1)

Where ya and x1 are the values in the coordinates (2 , -2)

So y1  = -2, x1 = 2, and m is a half. Plug these values in:

y - - 2 = \frac{1}{2}(x - 2)

We need to get rid of the half so we multiply the whole equation by 2:

2y - - 4 = (x - 2)

The minus and the negative turn into a positive:

2y + 4 = x - 2

And now simply move the +4 over to the other side, making it a negative:

2y =  -2 - 4 + x

Simplify:

2y = x - 6

<h3>So the equation of the line is 2y = x - 6</h3>
<h2>Hope this helps!</h2>
5 0
3 years ago
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