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2 years ago

Find the area of a tank which measures 25cm and 10cm

Mathematics

1 answer:

laiz [17]2 years ago

5 0

Answer:

Area = 250

Step-by-step explanation:

25 x 10

Length * Width

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The equation of line t is y = -2x + 9. Perpendicular to line t is line u, which passes through

Archy [21]

Answer:

Equation of line u in slope-intercept form is: $\mathbf{y=\frac{1}{2}x+9 }$

Step-by-step explanation:

Equation of line t : y = -2x + 9.

We need to find equation of line u, which is perpendicular to line t and passes through point (-10,4)

The equation must be in slope-intercept form.

The general equation of slope-intercept form is: $y=mx+b$ where m is slope and b is y-intercept

Finding Slope:

If two lines are perpendicular, their slopes are opposite i.e $m=-\frac{1}{m}$

Slope of line t: y=-2x+9 we get m =-2 (Comparing with general form y=mx+b, we get m =-2)

Slope of line u: $\frac{1}{2}$

So, we get Slope of line u: m= $\frac{1}{2}$

Finding y-intercept:

Using slope m= $\frac{1}{2}$ and point(-10,4) we can find y-intercept

$y=mx+b\\4=\frac{1}{2}(-10)+b\\4=-5+b\\b=4+5\\b=9$

Equation of line u:

So, equation of line u, having slope m= $\frac{1}{2}$ and y-intercept b=9, we get:

$y=mx+b\\y=\frac{1}{2}x+9$

So, Equation of line u in slope-intercept form is: $\mathbf{y=\frac{1}{2}x+9 }$

4 0

3 years ago

Which expression can be used to fine the slope of a line containing the points (-3,2) and (7,-1)

Charra [1.4K]

Hello there! you can use the expression $\frac{ y_{1}-y_{2}}{x_{1}-x_{2} }$ !

To find slope, subtract the y values over the x values.

In this case:

2 - - 1 / - 3 - 7

3 / -10

So, -3/10 would be the slope of these points.

Hope this helps, have a great day!

7 0

4 years ago

The length of the Titanic was 882 feet. Porters history class is building a model of the Titanic. The model us 1/100 of the actu

Advocard [28]

Base on the question where as asking to determine the size of the said model if it has a ration of 1/100 of the actual length of the ship and base on my calculation, the said model is 8.82 feet. I hope you are satisfied with my answer and feel free to ask for more if you have question and further clarifications

7 0

3 years ago

At what time would you reach 15ft above the water if you jump off a cliff using the formulaH(t)=-16t^2+8t+24

4vir4ik [10]

Answer:

1.079 seconds

Step-by-step explanation:

You want to find t when H(t) = 15.

15 = -16t^2 +8t +25

10/16 = t^2 -1/2t . . . . . . subtract 24, divide by -16

10/16 + 1/16 = t^2 -1/2t +(1/4)^2 . . . . . add (1/4)^2 to complete the square

11/16 = (t -1/4)^2

t -1/4 = √(11/16) . . . . . take the positive square root

t = 1/4 +(√11)/4 = (1+√11)/4 . . . . use a common denominator

You would be 15 ft above the water at t = (1+√11)/4 ≈ 1.079 seconds.

3 0

4 years ago

A landscape architect used the entire length of an 80-foot rope to lay out a flower bed in the shape of a square. In another are

Shtirlitz [24]

Answer: The area of the square is 400sqf.

Answer 2: Area of circle = 509.31 square feet.

Answer 3: The circle because the circle's are is larger

8 0

2 years ago

Read 2 more answers