Well it think it 16 your welcome
Answer:
Ebony will win the competition
Step-by-step explanation:
<u>Kiara:</u>
where t represents the time in seconds, and m represents the number of math facts completed.
When t = 1, then m = 5
5 math facts per second
<u>Giovanni:</u>
From the table:
20 math facts - in 5 seconds
40 math facts - in 10 seconds
60 math facts - in 15 seconds
4 math facts per second
Ebony:
From the graph
12 math facts in 2 seconds
24 math facts in 4 seconds
36 math facts in 6 seconds
48 math facts in 8 seconds
60 math facts in 10 seconds
6 math facts per second
Ebony will win the competition
13x is that what you meant???
First

determine if this equation were factorable, it's not for this one
so I use quadratic formula, try to search the formula online


<span>x ≈ −2.72 and x ≈ −0.28 is the solution</span>
Answer:
<u>Height = 3 inches and Base length = 7 inches</u>
Step-by-step explanation:
1. Information provided to answer the question correctly:
Base of the triangle = x+ 4
Height of the triangle = x
Area of the triangle = 10.5 inches²
2. Find the base length and height
Let's recall the formula of the area of a triangle:
Area = (Base * Height)/2
Replacing with the values we know:
10.5 = x (x + 4)/2
21 = x² + 4x
x² + 4x - 21 = 0
(x + 7) (x - 3) = 0
(x₁ + 7) = 0 ⇒ x₁ = -7
(x₂ - 3) = 0 ⇒ x₂ = 3
We take x₂ as the answer because x₁ = -7 is not a valid height.
<u>Height = 3 inches and Base length = 7 inches</u>