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2 years ago

Someone please help me on this I’ll make you brainlist

Mathematics

1 answer:

mamaluj [8]2 years ago

8 0

Answer:

M = (1,-2)

Step-by-step explanation:

The coordinates of the midpoint is the "average" of the x points and y points of the two coordinates given.

Given:

S = (-1,1)

T = (3,-5)

To find x coordinate of Midpoint M, we take average of both x coordinates of points S and T:

(-1+3)/2 = 1

To find y coordinate of Midpoint M, we take average of both y coordinates of points S and T:

(1-5)/2 = -2

So, the Midpoint M is:

M = (1,-2)

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Please help me solve this..

Naddik [55]

Answer:

X<7. Graph 7. Then put a open circle and arrow it going left! And there you go.

Step-by-step explanation:

Add 18 to both sides. Since -2x has a negative, you flip the sign to less than instead of greater than.

7 0

2 years ago

△HFM∼△PST

loris [4]

Answer:

The perimeter of △HFM is 50.75 units

Step-by-step explanation:

The correct picture of the question in the attached figure

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional, and this ratio is called the scale factor

we have

△HFM∼△PST ----> given problem

step 1

Find the scale factor

Let

z ----> the scale factor

$z=\frac{HF}{PS}$

substitute the given values

$z=\frac{14}{8}=1.75$

step 2

Find the perimeter of triangle PST

Remember that the perimeter of a triangle is the sum of its three length sides

$P=8+9+12=29\ units$

step 3

Find the perimeter of triangle HFM

we know that

If two figures are similar, then the ratio of its perimeters is equal to the scale factor

The perimeter of triangle HFM is equal to the perimeter of triangle PST multiplied by the scale factor

$29(1.75)=50.75\ units$

6 0

3 years ago

The heights of a group of boys and girls at a local middle school are shown on the dot plots below. 2 dot plots with number line

andrew-mc [135]

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Step-by-step explanation:

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2 years ago

A vertical cylinder is leaking water at a rate of 4m3/sec. If the cylinder has a height of 10m and a radius of 2m, at what rate

Katyanochek1 [597]

Answer:

Therefore the rate change of height is $\frac{1}{\pi}$ m/s.

Step-by-step explanation:

Given that a vertical cylinder is leaking water at rate of 4 m³/s.

It means the rate change of volume is 4 m³/s.

$\frac{dV}{dt}=4 \ m^3/s$

The radius of the cylinder remains constant with respect to time, but the height of the water label changes with respect to time.

The height of the cylinder be h(say).

The volume of a cylinder is $V=\pi r^2 h$

$=( \pi \times 2^2\times h)\ m^3$

$\therefore V= 4\pi h$

Differentiating with respect to t.

$\frac{dV}{dt}=4\pi \frac{dh}{dt}$

Putting the value $\frac{dV}{dt}$

$\Rightarrow 4\pi \frac{dh}{dt}=4$

$\Rightarrow \frac{dh}{dt}=\frac{4}{4\pi}$

$\Rightarrow \frac{dh}{dt}=\frac{1}{\pi}$

The rate change of height does not depend on the height.

Therefore the rate change of height is $\frac{1}{\pi}$ m/s.

4 0

3 years ago

The expression 4•4•4•4•4•4 can be expressed as 4^5 6^4 5^4 4^6

Alex73 [517]

the answer to your question is 4^6

6 0

3 years ago