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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Answer:
the asnwer is ) 9
Step-by-step explanation:
1 Simplifica |-1|∣−1∣ a 11.
{(1\times |-3|)}^{2}(1×∣−3∣)
2
2 Simplifica |-3|∣−3∣ a 33.
{(1\times 3)}^{2}(1×3)
2
3 Simplifica 1\times 31×3 a 33.
{3}^{2}3
2
4 Simplifica.
9
You just have to find the formula of each figure you can search it in internet or whatever then you have to solve those numbers in the formula
Answer:
perimeter = 42 units
Step-by-step explanation:
