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2 years ago

HELP ME PLZZ I NEED HELP WITH THIS!!

Mathematics

2 answers:

Dennis_Churaev [7]2 years ago

8 0

Answer:

B. Subtract 28 from both sides

Step-by-step explanation:

2x + 28 = 40

2x = 12

2x/2 = 12/2

x = 6

Aleonysh [2.5K]2 years ago

7 0

Answer:

its the second one

Step-by-step explanation:

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How do you use the order of operations to simplify expression with exponent

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So the trick I was taught to use was PEMDAS which stands for Parenthesis, Exponents, Multiplication, Division, Addition, and Subtraction. You solve the parenthesis first, followed by exponents if there are any. Multiplication and division are equal. So if there's multiplication and division in the problem, you solve the one closest to the left or start of the equation first. The same rules apply for addition and subtraction. They are both equal so you solve the first one first, even if the subtraction is before the addition.

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2 years ago

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if a truck starts from rest and its has acceleration of 4m/s 2. for second ,calculate its final velocity .what will be the dista

Lunna [17]

Answer:

The answer is given below

Step-by-step explanation:

Let us assume the truck accelerates for 4 seconds.

Given that:

Initial velocity (u) = 0 (starts from rest),

acceleration (a) = 4 m/s²

time (t) = 4 s

Final velocity (v) = ?,

Distance (s) = ?

To calculate the final velocity, we use the formula:

v = u + at

Substituting values gives:

v = 0 + 4(4)

v = 0 + 16

v = 16 m/s

The final velocity is 16 m/s²

To calculate the distance traveled by the truck, we use the equation:

$s=ut+\frac{1}{2}at^2\\ Substituting\ values\ into\ the\ equation:\\s=0(4)+\frac{1}{2}(4)(4)^2\\s=0+2(16)\\s=0+32\\s = 32\ meters$

The distance traveled by the truck during the time interval is 32 meters

6 0

3 years ago

A. Find the slope of the line that passes through the points (2,-5) and (-2,3).

Crazy boy [7]

Answer:

a) Slope: -2

b) y=2/5x+2

C) x=2.5

D) y=-7x-2

Step-by-step explanation:

I don't want to type all my work but that's what i got

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1 year ago

You are at a restaurant and the check comes to a total of $74. If you want to leave a 15% tip, how much total money should you p

mars1129 [50]

Answer:

85 dollars or to be exact $85.1

Step-by-step explanation:

Multiply the cost of 74 dollars by 0.15 then add the tip to the original amount.

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2 years ago

A rectangle has the sum of length and breadth 20 cm. find the perimeter.

kupik [55]

<h2>Answer:</h2>

40 cm.

<h2>Step-by-step explanation:</h2>

$Because=(long+width)\times 2=perimeter$

$50:the\ perimeter=20\times 2=40\ cm$

<em>I hope this helps you</em>

4 0

1 year ago