Answer:
B
Step-by-step explanation:
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k) are the coordinates of the centre and r is the radius
(x + 7)² + (y - 5)² = 16 ← is in standard form
with centre = (- 7, 5 ) and r =
= 4 → B
Let s represent the length of any one side of the original square. The longer side of the resulting rectangle is s + 9 and the shorter side s - 2.
The area of this rectangle is (s+9)(s-2) = 60 in^2.
This is a quadratic equation and can be solved using various methods. Let's rewrite this equation in standard form: s^2 + 7s - 18 = 60, or:
s^2 + 7s - 78 = 0. This factors as follows: (s+13)(s-6)=0, so that s = -13 and s= 6. Discard s = -13, since the side length cannot be negative. Then s = 6, and the area of the original square was 36 in^2.
Answer:
75%
Step-by-step explanation:
100% ÷ 4 = 25%. 3 questions correct= 75% and one wrong which is 25%. 100-25=75
Answer:
52 bags.
Step-by-step explanation:
Your question is how many full bags are available in terms of 38 gram packs from less than 2000 grams sum.
Now:
<u>2000</u>
38
=
52.63
Since you only need full (38 grams) paks, your answer is 52 bags.
What is the leftover amount?
L
=
2000
−
(
52
×
38
)
=
2000
−
1976
=
24
grams.
Your leftover part is 24 grams.
25 x 13 = 325
20x 8 = 160
325-160 = 165 square feet
answer is A