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Viefleur [7K]
2 years ago
9

Pls pls help i need help

Mathematics
1 answer:
Gala2k [10]2 years ago
3 0

Answer:

3 m/s/s

Step-by-step explanation:

F = ma

28 = 4m

m = 7

m is constant throughout

21 = 7a

a = 3

3 m/s/s

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Write and evaluate the expression. Then, select the correct answer. The sum of forty-five and a number; evaluate when n = 1. 1 4
Colt1911 [192]

The sum of forty-five and a number n is 46.1, and the expression that can represent this can be written "45+n" where the value of n is 1.1

<h3>What is an Expression?</h3>

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

The statement that is given to us is" the sum of forty-five and a number", therefore, the expression that will represent this can be written as,

45 + n,

Now, if the value of n is 1.1. Then the sum will be,

45+n\\\\=45+1.1\\\\=46.1

Hence, the sum of forty-five and a number n is 46.1, and the expression that can represent this can be written "45+n" where the value of n is 1.1

Learn more about Expression:

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1 year ago
How to solve x in the equation 9x over 2 - 6=5
drek231 [11]

Step-by-step explanation:

\frac{9x}{2}  - 6 = 5 \\  \\  \therefore \:  \frac{9x}{2}  = 5 + 6 \\  \\  \therefore \:  \frac{9x}{2}  = 11 \\  \\  \therefore \: 9x = 11 \times 2 \\  \\ \therefore \: 9x = 22 \\  \\  \therefore \: x =  \frac{22}{9}  \\  \\  \therefore \: x =  2 \frac{4}{9}

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F(16) – f(0) when f (x) = 4x – 8?​
soldier1979 [14.2K]
The answer 56
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Make b the subject of this equation A = 1/2 x b x h
aalyn [17]

The equation is b=\frac{2A}{h}

Step-by-step explanation:

Let us revise how to make a variable subject of an equation

  1. Write the equation and circle the variable you want to make it subject
  2. Keep it in one side and move all other in the other side
  3. Make the coefficient of the subject 1

∵ A = \frac{1}{2} × b × h

∵ b is the subject

∴ Multiply the two sides by 2

∴ 2A = b × h

- Divide both sides by h

∴ \frac{2A}{h}= b

- Switch the two sides

∴ b=\frac{2A}{h}

The equation is b=\frac{2A}{h}

Learn more:

You can learn more about the equations in brainly.com/question/10708697

#LearnwithBrainly

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3 years ago
What is the decimal multiplyer to decrece by 72%
pishuonlain [190]

Answer:

0.28 is ur answer

Step-by-step explanation:

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