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Mama L [17]
3 years ago
8

Does square 256 represent the positive square root of 256

Mathematics
2 answers:
Naddik [55]3 years ago
8 0
Normally we use wats called the principal squar root or the positive squar root more oftern then the negative root

techniclly \sqrt{256}=-16 and +16
so the answer is no
kati45 [8]3 years ago
6 0
It represents both of them, until it appears in a problem or exercise where there is some reason to discard one or the other.
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the population of a town was 14,000 people. Then 1,800 people moved away. What was the percent decrease?
Gennadij [26K]
1800/14000 = 0.128

0.128 can be rounded to 0.13.

0.13 = 13%

The percent decrease was 13%. 
5 0
3 years ago
Read 2 more answers
Alice Hall, who loves to cook, makes an apple cake (serves six) for her family. The recipe calls for 2 1/2 pounds of apples, 2 1
grandymaker [24]
2 1/2 pounds of apple makes serve 6
(2 1/2 x 24)/6 = 10 pounds of apple will make serve 24.

Therefore, she will use 10 pounds of apples.
8 0
4 years ago
The width of a dining room floor in a scale drawing is 6in. The actual width is 30 ft. What is the scale of the floor plan?
sasho [114]

Answer:

Scale = 5ft/in

Step-by-step explanation:

Given

Scale Measurement = 6in.

Actual Width = 30ft

Required

Scale Ratio.

The scale ratio can be calculated as thus:

Scale Ratio = Actual Measurements ÷ Scale Measurements

Scale Ratio = 30ft ÷ 6in

Scale Ratio = 30ft/6in

Simplify to lowest terms

Scale Ratio = 5 ft/1 in

Scale Ratio = 5ft/in

This can also be represented as follows;

Scale Ratio = 5ft : 1in

This means that 5 ft on the actual measurements is represented by 1inch on the scale.

6 0
3 years ago
Solve the inequality and show your solution on a number line: 0.2x−2<7−8x
Allisa [31]

Answer:

x< \frac{45}{41}  or x< 1.098

The graph in the attached figure

Step-by-step explanation:

we have

0.2x-2 < 7-8x

Solve for x

Adds 2 both sides

0.2x-2+2 < 7-8x+2

0.2x < 9-8x

Adds 8x both sides

0.2x+8x < 9-8x+8x

8.2x < 9

Divide by 8.2 both sides

x < 9/8.2

Remember that

8.2=82/10

substitute

x < 9/(82/10)

x< \frac{90}{82}

Simplify

x< \frac{45}{41}  or x< 1.098

The solution is the interval ------> (-∞, 45/41)

All real numbers less than 45/41

In a number line , the solution is the shaded area at left of x=45/41 (open circle)

The graph in the attached figure

7 0
3 years ago
The perimeter of a triangle is 84m. the longest side of the triangle is 7m less than twice the length of the shortest side, x. t
Masja [62]
Side1 + side2 + side 3 = 84

side1 is the shortest side, and its length is x.
side2 is the middle side, and its length is x + 7
side3 is the longest side, and its length is 2x - 7

x + x + 7 + 2x - 7 = 84

4x = 84

x = 21

side1 = x = 21
side2 = x + 7 = 21 + 7 = 28
side3 = 2x - 7 = 2(21) - 7 = 42 - 7 = 35

The length of the sides are 21 m, 28 m, and 35 m.
5 0
3 years ago
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