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VladimirAG [237]
3 years ago
12

a compass and a ruler cost $4. the compass is .90 cent more than the ruler. how much does the compass cost

Mathematics
2 answers:
LiRa [457]3 years ago
4 0
The ruler is $1.55. The compass is $2.45.
Tema [17]3 years ago
3 0
2.45 hope this helps
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How would I find the Max/min of this function f(x) = 2x squared +18x +16
slamgirl [31]
F(x)=2x²+18x+16
1) we have to calculate the first derived.

f´(x)=4x+18

2) Now, we equalize the first derived to "0" and find out the value of "x"
4x+18=0
4x=-18
x=-18/4=-4.5

3)we calculate the second derived
f´´(x)=4>0  ⇒we have a minimum at x=-4.5

4) Now we calculate the value of "y".
f(-4.5)=2(-4.5)²+18(-4.5)+16=40.5-81+16=-24.5

Therefore; Exist a minimum at (-4.5 , -24.5)
7 0
3 years ago
Why is sequence and series important?
BartSMP [9]
Sequence and series are very important.
Because with the help of number sequences and series formulas, you can perform Quantitative Analysis, Financial and Business Analysis to help you in important business and investment decisions.

Hope this helps ʕ•ᴥ•ʔ
3 0
3 years ago
Hey can you please help me posted picture of question :)
ladessa [460]
The graph is touching the x-axis at x= 2 and is turning away.

When a graph exhibit such a behavior at a root, we say that the multiplicity of the root is 2. So the roots of the polynomial are x = 2 and x = 2. The factors of the polynomial are (x - 2) and (x - 2)

The polynomial thus can be written as product of its factors as (x-2)(x-2)

So the correct answer to this question is option B
7 0
4 years ago
Please help me with this
Eduardwww [97]

Answer:

r^{6}

Step-by-step explanation:

Using the rule of exponents

\frac{a^{m} }{a^{n} } = a^{(m-n)} , then

\frac{r^{9} }{r^{3} } = r^{(9-3)} = r^{6}

5 0
3 years ago
How do addition facts help you subtract
bazaltina [42]
Its basically the opposite

ex: 4+4 = 8 helps you do 8-4=4
6 0
3 years ago
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