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3 years ago

Please help me i need this to be done within 5 minutes... will mark brainliest and thanks, and rate 5...

Mathematics

2 answers:

mariarad [96]3 years ago

8 0

Answer:

The error is in step 3. 24 -(-30). The correct answer would be -24-(-30)

Step-by-step explanation:

You are multiplying 2(-12) which would not give you a positive 24, but a negative 24 because a negative times a positive still gives you a negative. Once you have fixed that mistake, you continue on with the problem and your end product will be 6.

2(4−16)−(−30)

= (2)(−12)−(−30)

= −24−(−30)

= 6

I hope this helps you out!!

trapecia [35]3 years ago

7 0

The product of the two numbers with different signs is negative so 2(-12)=-24 not 24. Then -24 -(-30)=-24 +30=6

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Let's solve for x :

$\sqrt{x - 2} - x = - 2$

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3 years ago

The baseball coach is 70 inches tall. How tall is the child?

tankabanditka [31]

The child is <u>59.4 inches tall</u>, assuming the length from the coach's shoulder to his head cap is approximately 10 inches.

<h3>What is Heigth?</h3>

Height refers to the vertical distance between the top and bottom of something.

Height measures the length of some objects or persons vertically to determine whether it is high or low, according to some ascertained criteria.

<h3>Data and Calculations:</h3>

Baseball coach's height = 70 inches

Coach's shoulder to head = 10.6 inches

Height of the child standing slightly below the coach's shoulder = 59.4 inches (70 - 10.6)

Thus, the child standing slightly below the coach's shoulder is 59.4 inches tall.

Learn more about height measurements at brainly.com/question/73194

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<h3>Question Completion:</h3>

Assume that the height of the coach from his shoulder to the head is 10.6 inches.

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2 years ago

If the area of a rectangle with length (4x) is 4x2 + 12x, find the width.

8090 [49]

Answer:

The width of a rectangle is: w = x+3

Step-by-step explanation:

Given

The length of rectangle = l = 4x

The area of rectangle = A = 4x² + 12x

To determine

The width of rectangle = w = ?

We know that the formula of the area of the rectangle is

$A = wl$

substitute A = 4x² + 12x and l = 4x in the equation to determine the width w of the rectangle

4x² + 12x = w×4x

w = [4x² + 12x] / [4x]

Factor 4x² + 12x: 4x(x+3)

w = [ 4x(x+3) ] / [4x]

w = x+3

Therefore, the width of a rectangle is: w = x+3

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