Answer:
Step-by-step explanation:
f(-9)=2(-9)²+5(-9)+20
= 162-45+20
= 137
Answer:
To graph the line mark off the 2 points and draw a line through them.
Step-by-step explanation:
The slope = (-2-7) / (-3-0)
= -9/-3
= 3.
The value of b is found using the point-slope form of a line:
y - y1 = m(x - x1)
using m = 3, (x1, y1) = (0, 7):
y - 7 = 3(x - 0)
y = 3x + 7.
Step-by-step explanation:
<span>Let +a+ = number of trumpet players
Let +b+ = number of saxophone players
---------------------
(1) +a+=+b+-+10+
(2) +b+=+3a+
----------------
Substitute (2) into (1)
(1) +a+=+3a+-+10+
(1) +2a+=+10+
(1) +a+=+5+
and
(2) +b+=+3%2A5+
(2) +b+=+15+
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There are 5 trumpet players
and 15 saxophone players</span>
Answer:
it is b because I did the math and got that
Gabriela spends about 30% of her take home pay on rent.
