–8y + 7x
2y – 7x
8y + 8x
Answer:
-8y + 7x.
Step-by-step explanation:
Answer:
slope is -1
Step-by-step explanation:
The line is decreasing from left to right, so the slope is going to be negative. If you count down, then move to the right, you would get one down, one to the right continually.
Answer:
y=-1x-2
Step-by-step explanation:
Answer:
79 seconds
Step-by-step explanation:
The variation in the yearly salaries can be explained by the differences in employee ages up to40.1%.
When given the correlation coefficient of two variables, you can find out how much of the variation in the dependent variable can be explained by the independent variable by the formula:
= (Correlation coefficient)² x 100%
= 0.633² x 100%
= 0.4007 x 100%
= 40.1%
In conclusion, 40.1% of the variation in salary can be explained by age.
Find out more at brainly.com/question/3560028.
Answer:
The answer is 40.1%
Step-by-step explanation:
I just took the test
(a) The volume of the brick is 650 cubic centimeters (cm³), and the surface area is 490 square centimeters (cm²).
(b) The painter should base paint quantity on surface area (490 cm²).
(c) To find concrete needed, use volume (650 cm³).
(a) To find the volume and surface area of the rectangular prism-shaped brick, we can use the following formulas:
Volume (V) = Length × Width × Height
Surface Area (SA) = 2(LW + LH + WH)
Given the dimensions of the brick:
Length (L) = 13 cm
Width (W) = 5 cm
Height (H) = 10 cm
Now, let's calculate:
Volume (V) = 13 cm × 5 cm × 10 cm = 650 cubic centimeters (cm³)
Surface Area (SA) = 2(13 cm × 5 cm + 13 cm × 10 cm + 5 cm × 10 cm) = 2(65 cm² + 130 cm² + 50 cm²) = 2(245 cm²) = 490 square centimeters (cm²)
So, the volume of the brick is 650 cm³, and the surface area is 490 cm².
(b) The painter should consider the surface area to determine how much paint to buy. Surface area represents the total area that needs to be covered with paint. In this case, it's 490 cm². Buying paint based on the surface area ensures that there's enough paint to cover the entire exterior of the brick.
(c) To find the amount of concrete needed to make the brick, we would use the measure of volume (V). Concrete is typically sold and purchased by volume, and in this case, the volume of the brick is 650 cm³. So, to determine the amount of concrete required, we would use the volume measurement (650 cm³).
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