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3 years ago

Can someone please help me with this problem. I will give brainliest!

Mathematics

1 answer:

Kobotan [32]3 years ago

5 0

<h3>Answer: y = 5</h3>

Explanation:

The y axis is vertical. Anything perpendicular to this is horizontal.

All horizontal linear equations are of the form y = k, where k is any number.

In this case, k = 5 so that the line y = 5 goes through all points with y coordinate 5. Two points on this line are (-4,5) and (1,5).

Note how y = 5 is equivalent to y = 0x+5. We see the slope is 0 and the y intercept is 5. Compare this to y = mx+b.

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Can someone help me on this and i will help u on one that ur stuck on, cuz im kinda confused on this

bagirrra123 [75]

Answer:

0.025 meters large

Step-by-step explanation:

Just drag the decimal twice to the left since the 10 has a power of -2.

6 0

3 years ago

The length of a rectangle is 24" and its width is 7". How long is a diagonal?

nadezda [96]

22”. Hope that helps

7 0

3 years ago

Suppose we want to choose 3 objects, without replacement, from the 4 objects pencil, eraser, desk, and chair.

Crank

Answer:

4 ways of choosing

Step-by-step explanation:

If you want to choose 3 objects, without replacement, from the 4 objects which are distinct, then permutation i.e then their arrangement doesn't really matter. Only their combination will be considered

That means, order of choosing doesn't matter,

pencil/ eraser/ desk will be same as eraser/ desk/ pencil.

Number of ways of selecting 3 objects out of 4 distinct objects is:

⁴C₃ = $\frac{4 !}{3! \times (4-3)!}$

⁴C₃ = $\frac{4 \times 3 \times 2 \times 1}{3 \times 2 \times 1}$

⁴C₃ = 4

So, there are 4 ways of choosing

5 0

4 years ago

Solve, using the substitution method

iren2701 [21]

2x+4y=16
x-7=-4y

4y=16-2x
<span>4y=16-2(-4y+7)
4y=16+8y-14
-4y=2
-4y/-4=2/-4
<u>y=-0,5</u>

2x=16-4(-0,5)
2x=16+2
2x/2=18/2
<u>x=9
</u>
C</span>

5 0

4 years ago

Mr. Aydlett is on an island 2 miles offshore and wishes to reach a coastal village 6 miles down a straight shoreline from the po

eimsori [14]

Answer:t=2.11 hr

Step-by-step explanation:

Given

Aydlett is 2 miles offshore and village is 6 miles down a straight line from the Point on the shore nearest the island

Person can row boat at 2 mph in water and can walk 5 mph in land

Let us suppose Person land the boat at a x miles from Point on the shore

thus time taken by him to reach

$t_1=\frac{\sqrt{x^2+2^2}}{2}$

Time taken person to reach village by land is

$t_2=\frac{6-x}{5}$

total time $=\frac{\sqrt{x^2+2^2}}{2}+\frac{6-x}{5}$

we need the time to be least so differentiate t w.r.t to x

$\frac{\mathrm{d} t}{\mathrm{d} x}=\frac{2x}{2\cdot 2\cdot \sqrt{4+x^2}}-\frac{1}{5}$

Equating Above term to zero to get minimum time

$\frac{x}{2\sqrt{4+x^2}}=\frac{1}{5}$

$25x^2=16+4x^2$

$x=\frac{4}{\sqrt{21}}$

Substituting x in time equation

$t=\frac{\sqrt{4+0.761}}{2}+\frac{6-0.872}{5}$

$t=2.116 hr$

5 0

3 years ago