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Rom4ik [11]
4 years ago
9

A high-speed boat has four 325.0 kW motors. How much work is done in 25 seconds by the motors?

Mathematics
1 answer:
iVinArrow [24]4 years ago
7 0
D is the correct answer
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Consider u = ⟨5, –2⟩ and v = ⟨10, –4⟩. what is the relationship between u and v?
Nadusha1986 [10]

Answer:

v = 2u

Step-by-step explanation:

note that

2u = 2 (5, - 2 ) ← multiply each component by 2

    = (10, - 4) = v , then

v = 2u

8 0
2 years ago
Help me, brother!!.!.!.!
alexandr1967 [171]

Slope-intercept form: y = mx + b (m is the slope, b is the y-intercept or the y value when x = 0 -->  (0, y))

To find the slope(m), you can use the slope formula and plug in 2 points:

m=\frac{y_2-y_1}{x_2-x_1}

(x₁ , y₁) = (0, 2)

(x₂ , y₂) = (4, 5)

m = \frac{5-2}{4-0}

m = \frac{3}{4}

[slope is also m=\frac{rise}{run}  "rise" is the number of units you go up(+ number) or down(negative number). "run" is the number of units you go to the right. If your slope for example is 2, you go up 2 units and to the right 1 unit. If your slope is -2, you go down 2 units and to the right 1 unit.]

^ you could just look at the graph and see how many units a point goes up or down and to the right to get to the next point (goes up 3, to the right 4)

y=\frac{3}{4} x+b  To find b, plug in either of the 2 points into the equaation

(0,2)

2=\frac{3}{4}(0)+b

2 = b

y = \frac{3}{4}x + 2

3 0
3 years ago
Can somebody please help me
-Dominant- [34]

    I can't seem to find the measure because it always when trying to find x (verticla angle) turns into a decimal answer. So I'm hoping that the diagram could help you find your answer.

7 0
3 years ago
How do I use elimination process when solving two variable equations?
kenny6666 [7]
Solve simultaneously:

<span>15x-8y=52 and
6x+14y=38
</span>
Let's solve this system thru elimination by addition/subtraction:

Let's get rid of the x terms.
To do this, mult. the first eqn. by -6 and the second by 15.  (This is not the only way in which we can do this!!)  We get  

-90x + 48y = -312
90x   +210y = 570
--------------------------
Add all 3 columns together.  We end up with:

258y = 258, so y = 1.  You can find x by subst. 1 for y in either of the given equations.

If you'd like more help, please be specific about what you want.


7 0
3 years ago
Can someone please answer this worksheet for me. I would be really thankful if you do so. ​
zhenek [66]
I know 1 but I don’t know 2

6 0
3 years ago
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