Answer:
28 cm
Step-by-step explanation:
The formula for the area of a triangle is 1/2bh
Here we have 1/2 (14)(4)
That comes to 28 cm
To find the intersection points, you take x^2 - 4x + 9 = -2x + 17
This gives x^2 - 2x - 8 = 0,
which factorises to (x - 4)(x + 2) = 0, giving the solutions x = 4 or x = -2
From the graph, we can see that x is positive, meaning x = 4, so a = 4.
Substituting x = 4 into y = -2x + 17, we get y = -2(4) + 17 = 9, so b = 9.
a + b = 4 + 9 = 13. The answer is B.
Answer:
D.
Step-by-step explanation:
shelter 1 had 4/18 black, around 17%
2 had around 60%
3 had exactly 60%
and 4 had 72%
1) Julius and Olivia collect coins. {Qualitative statement}
2) Julius (J) has 338 coins in his collection. {Quantitative statement}
J = 338
3) The number of coins Olivia (V) has is 57 less than double the number of coins Julius has. {Quantitative statement}
V = 2*J - 57
V = 2*338 - 57
V = 619
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Olivia has 619 coins.
