Given the graph of a system of equations, which

Mathematics

1 answer:

Mrac [35]3 years ago

8 0

Step-by-step explanation:

I have used tick and cross to show true n false

....,...............

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Tublu buys a cylindrical water tank height 1.4 M and diameter 1.1 M to catch rainwater off his roof.

denis23 [38]

Complete Question:

Tublu buys a cylindrical water tank of height 1.4m and diameter 1.1m to catch rainwater off his roof. He has a full 2 liters tin of paint in his store and decides to paint the tank(not the base). If he uses 250ml to cover 1m2, will he have enough paint to cover the tank with one layer of paint? Take pie as 3.142

Answer:

Yes. It will be enough to cover the tank with 1 layer of paint. The tank requires 1.21 liters of paint.

Step-by-step explanation:

Given:

Height of cylindrical tank (h) = 1.4m

Diameter = 1.1m (radius = ½ of 1.1 = 0.55 m)

Litres of paint available = 2 liters

Rate of usage of paint = 250 ml to 1 m²

π = 3.142

Required:

Determine if the available 2 liters of paint would be enough for the painting

Solution:

Step 1: calculate the curved surface area of the cylindrical tank

Curved surface area (CSA) = 2πrh

= 2*3.142*0.55*1.4

= 4.84 m²

Step 2: Calculate how many liters of paint is required to paint the cylindrical tank having a curved surface area of 4.84 m²

If 1 m² requires 250ml (0.25 liters) of paint,

4.84m² area will require 4.84*0.25 liters

= 1.21 liters of paint.

Since 2 liters of paint is available, it means the paint will be more than enough to cover the tank with 1 layer of paint.

7 0

4 years ago

ASAP! GIVING BRAINLIEST! Please read the question THEN answer correctly! No guessing.

vodomira [7]

Answer:

A. m = $\frac{F}{a}$

Step-by-step explanation:

The variables "ma" are connected, implying they are together through multiplication. To remove "a" from "m," you must do the opposite, which is division. So, divide both sides by "a," like so:

F = ma

$\frac{F}{a} =\frac{ma}{a}$

$\frac{F}{a}$ = m

3 0

3 years ago

In parallelogram DEFG, DH = x + 3, HF = 3y, GH = 3x – 3, and HE = 5y + 4. Find the values of x and y.

Ksju [112]

We have that in this case the following equalities are met:
DH = HF
x + 3 = 3y
GH = HE
3x - 3 = 5y + 4
We then have the following system of equations:
x-3y = -3
3x-5y = 7
Resolving the system graphically we obtain the following values:
x = 9
y = 4
Note: see attached image.
Answer:
The values of x and y are:
x = 9, y = 4