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3 years ago

What is an expression equivalent to 7(c-4)

Mathematics

1 answer:

Lemur [1.5K]3 years ago

7 0

Answer:

7c - 28

Step-by-step explanation:

7(c - 4)

(7 × c) + (7 × - 4)

7c + (7 × - 4)

7c + -28

7c - 28

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A triangle has side lengths of (8s + 8) centimeters, (s +9) centimeters, and

quester [9]

Answer:

Step-by-step explanation:

(16.2t+3.4u+2.9)cm

Step-by-step explanation:

A triangle is a plane shape that has three sides. The perimeter of a triangle is gotten by taking the sum of all the lengths of the three sides. Let the length of the three sides by s1, s2 and s3, the perimeter of the triangle will be expressed as;

P = s1+s2+s3

Given the side lengths

s1 = (8.1t-6.1)cm

s2 = (8.1t+7.1)cm

s3 = (3.4u+1.9)cm

Perimeter of the triangle = 8.1t-6.1+8.1t+7.1+3.4u+1.9

collect the like terms

P = 8.1t+8.1t+3.4u-6.1+7.1+1.9

P = 16.2t+3.4u+2.9

Hence the expression that represents the perimeter, in centimeters, of the triangle is (16.2t+3.4u+2.9)cm

5 0

3 years ago

Simplified or solved for x ????

Leya [2.2K]

$\dfrac{16 \pm \sqrt{-32} }{2}$

$\dfrac{16 \pm \sqrt{-16 \times 2} }{2}$

$\dfrac{16 \pm 4i\sqrt{2} }{2}$

$8 \pm 2i \sqrt{2}$

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3 years ago

A function that is defined only for a set of numbers that can be listed, such as the set of whole numbers, is called a discrete

asambeis [7]

It is true i hope that help

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3 years ago

A couple plans to save for their child's college education. What principal must be deposited by the parents when their child is

Vinvika [58]

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3 years ago

The floor plan shows an l shaped room. Shane wants to buy carpet for the room. The cost for one square foot of carpet is $4. Wha

VashaNatasha [74]

The area of shape is the amount of space on it.

The cost to carpet the room is $224

From the floor plan (see attachment), we can divide the room into two shapes:

A 8ft by 6ft rectangle
A 4ft by 2ft rectangle

So, the area of the floor plan is:

$\mathbf{Area = 8ft \times 6ft + 4ft \times 2ft}$

$\mathbf{Area = 48ft^2 + 8ft^2}$

$\mathbf{Area = 56ft^2}$

The unit cost of carpet is $4 per one square foot

So, the cost to carpet the room is:

$\mathbf{Cost = \$4 \times 56}$

$\mathbf{Cost = \$224}$

Hence, the cost to carpet the room is $224