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2 years ago

A vehicle is travelling from rest. After 10 seconds its velocity will be 20ms find acceleration?

Mathematics

1 answer:

Paladinen [302]2 years ago

8 0

Initial velocity (u) = 0m/s

Final velocity (v) = 20m/s

Time (t) = 10 s

Acceleration (a)

= (v - u)/t

= [(20m/s) - (0m/s)]/10s

= (20m/s)/10s

= (20m/s²)/10

=> 2m/s²

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A cone has a height of 7ft and a radius of 4ft which equation can find the volume of the cone v=1.3 (7.2)

Margaret [11]

Answer:

The volume of a cone is:

V=(hπr^2)/3, where h=height and r=radius

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Step-by-step explanation:

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3 years ago

Read doccument attached

Klio2033 [76]

Answer:

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Step-by-step explanation:

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2 years ago

7(2x-5)=21<br><br> What is x?

Over [174]

Answer:

x = 4

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Step-by-step explanation:

<u>Step 1: Define Equation</u>

7(2x - 5) = 21

<u>Step 2: Solve for </u><em><u>x</u></em>

Distribute 7: 2x - 5 = 3
Isolate <em>x</em> term: 2x = 8
Isolate <em>x</em>: x = 4

<u>Step 3: Check</u>

<em>Plug in x into the original equation to verify it's a solution.</em>

Substitute in <em>x</em>: 7(2(4) - 5) = 21
Multiply: 7(8 - 5) = 21
Subtract: 7(3) = 21
Multiply: 21 = 21

Here we see that 21 does indeed equal 21.

∴ x = 4 is the solution to the equation.

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2 years ago

Look at this graph:

pickupchik [31]

<h3>Answer:</h3>

The Slope is $2$

<h2>Explanation:</h2>

Notice that both the points, $(60,0)$ and $(70,20)$ , are on the line. So we can use those points to calculate the slope. Recall that that slope of the line $m$ can be calculated by $\frac{y_2 -y_1}{x_2 -x_1}\\$ if we have the points, $(x_1,y_1)$ and $(x_2,y_2)$ .