The equation that can be used to determine the dimensions of the base of the doghouse is x² + 4x = 21
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What is the equation?</h3>
A quadratic equation is an equation that usually has a single variable and it is raised to the power of 2.
Area of a rectangle = length x width
x (4 + x) = 21
x² + 4x = 21
To learn more about quadratic equations , please check: brainly.com/question/27696091
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Let x = our unknown number
10x = 600
Divide by 10 on both sides to isolate the variable x.
x = 600/10
x = 60
600 is 10 times as much as 60.
Answer:
6. 2.6
7. 1.5
8. 16.2
9. 1.44
10. 19.2
11. 0.08
12. 3.3
13. 288.1
14. 109.2
15 h = 7.2
16. x = 0.3
17. m = 10.36
Step-by-step explanation: umm here’s the answers
It would be 4/5 hope that helps
Answer:
C.
Primary sources
Step-by-step explanation:
