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timofeeve [1]
3 years ago
11

Help please lol :)).

Mathematics
1 answer:
katen-ka-za [31]3 years ago
7 0

Answer:

$10.50

Step-by-step explanation:

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Use a=6 and b=24 to work out the value of these expressions
Reika [66]
A) 30
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2 years ago
Solve the system of equations<br><br> system
Korolek [52]

Answer:

(3, 3 )

Step-by-step explanation:

Given the 2 equations

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6x + y = 21 → (2)

Adding the 2 equations term by term will eliminate y, that is

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x = 3

Substitute x = 3 into either (1) or (2) and solve for y

Using (2), then

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8 0
3 years ago
Read 2 more answers
Please help asap 25 pts
beks73 [17]
y=ax^2+bx+c\\\\\text{Axis of symmetry:}\ x=\dfrac{-b}{2a}


\text{We have:}\\\\y=4x^2+16x-18\\\\a=4;\ b=16;\ c=-18\\\\x=\dfrac{-16}{2\cdot4}=\dfrac{-16}{8}=-2

Answer: A.
6 0
3 years ago
Which of the following tables represents a quadratic function ? Explain how you know .
Aliun [14]
B, the first differences are not the same , that proves it is not linear. The second set of differences are the same this shows it is a quadratic function.

4 0
3 years ago
Two years ago, Paul bought $350 worth of stock in a cell phone company. Since then the value of his stock has been increasing at
zalisa [80]

Answer: $384.13 ( rounded)

Original number: $384.125

Step-by-step explanation:

Find 9.75% of Paul's original stock, to find out how much it increased.

9.75*350/100=34.125

Add $34.125 to his original stock.

$384.125

5 0
3 years ago
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