Answer:
use Desmos its a graphing calculator
Step-by-step explanation:
in a square room. If the designer spent $600 on the flooring, about how long is a
side of the room? Round to the nearest foot.
• How is the area of a square related to its side length?
• How can you estimate the length of a side of a square?
The area of a square relates to its side length as Area = Side Length × Side Length. To estimate a side length, knowing $4/sq ft cost and $600 spent, Side Length ≈ 12 feet.
The area of a square is related to its side length by the formula:
Area = Side Length × Side Length
or Area = Side Length²
To estimate the length of a side of a square,
use the given information that the designer paid $4 per square foot for flooring and spent $600 on the flooring.
The cost of the flooring is directly proportional to its area, which is determined by the square of the side length.
Let's set up an equation using the cost and area:
Cost of flooring = Cost per square foot × Area
$600 = $4/sq ft × Side Length²
Solving for Side Length²
Side Length² = $600 / $4/sq ft
Side Length² = 150 sq ft
Taking the square root of both sides to find the side length:
Side Length ≈ √150
Side Length ≈ 12.25 feet
Rounded to the nearest foot, the side length of the room is approximately 12 feet.
Therefore, the estimated length of a side of the room is about 12 feet.
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Answer:
$150
Step-by-step explanation:
600 divided by 4
X^2-9
Answer:
(x+3)(x-3)
Step-by-step explanation:
x²-b² = (x+b)(x-b)
x²-9 = x²-3² = (x+3)(x-3)
Answer:
-36
Step-by-step explanation:
80 + (-36) = 44
The negative in the 36 allows it to be subtracted from 80
Answer:
80 + -36
Step-by-step explanation:
80 - 44 = 36
80 + -36 = 44
Answer:
Step-by-step explanation:
The assumptions include:
The samples from each population must be independent of one another: this was adequately met.
The populations from which the samples are taken must be normally distributed: this was not talked about
The population standard deviations must be known: not known
or the sample sizes must be large (i.e. n1≥30 and n2≥30: true
The validity conditions for a two-sample z-test/interval were not all adequately met
Answer:
0.288
Step-by-step explanation:
Given that :
Correlation (R) = 0.48
Slope of linear model which predicts Lifespan from years of education (m) = 0.8
To determine the value of slope of the model which predicts years of eductauoon from lifespan:
The square of the regression Coefficient is multiplied by the inverse of the slope of linear model which predicts Lifespan from years of education
Hence,
(R² * 1/m)
0.48² * 1/0.8
0.2304 * 1.25
= 0.288
The slope of the line that predicts years of education from lifespan is 1.25.
The slope of the line that predicts years of education from lifespan can be determined by taking the reciprocal of the slope that predicts lifespan from years of education. In this case, the slope of the line that predicts years of education from lifespan would be 1 divided by 0.8, which equals 1.25.
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6 - inches. Enter and solve an equation to find the length of the base of the triangle.
4
Use b to represent the length of the base.
An equation to find the length of the base of the triangle is 54 =
The length of the base of the triangle is
inches.
Answer:
The base is 3 inches
Step-by-step explanation:
A = 1/2bh
54 = 1/2(36)b
54 = 18b
b = 3