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Marina CMI [18]
3 years ago
6

Need help on 7 simplest form

Mathematics
2 answers:
Olegator [25]3 years ago
6 0
Hopefully the picture is clear enough but I got 1 and 1/20

Ksju [112]3 years ago
4 0
I think it's 1 and 1/20
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F(x)=x²-3x-2 then f(-1) is given by​
evablogger [386]

Answer:

f(-1) = 2

Step-by-step explanation:

To evaluate this function at x = -1, replace "x" in the equation with (-1) (you should use the parentheses as indicated here).

f(x)=x²-3x-2 becomes

f(-1)=(-1)² - 3(-1) -2, or

f(-1) = 1 + 3 - 2, or

f(-1) = 2

8 0
3 years ago
To fill the 18 gallon gas tank in Samantha's car, it cost her $49.14, find the cost per gallon.
Stolb23 [73]
2.37 dollars , divide 49.14 by 18 this will give you the amount you pay per gallon
7 0
2 years ago
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An alloy consists of nickel, zinc, and copper in the ratio 2:7:9.
tia_tia [17]

Answer:

Alloy = 12.6 lbs.

Step-by-step explanation:

( 2/7 ) = ( Nickel /4.9)

Nickel = 1.4 lbs.

Ratio of Copper to Zinc:

( 9/7 ) = ( Copper /4.9)

Copper = 6.3 lbs.

Alloy = Zinc + Nickel + Copper

Alloy = 4.9 lbs. + 1.4 lbs. + 6.3 lbs.

Alloy = 12.6 lbs.

5 0
3 years ago
What is the area of this square????<br><br><br><br> pls help
GuDViN [60]
Answer: 5

Explanation: A = a^2 = 5^2 = 25
6 0
2 years ago
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Use the matrix method to solve the system of equations 2 x + 4 y = 8 and 6 x + 3 y = -3. The resulting matrix is:
attashe74 [19]

Answer:

x=-2,y=3

Step-by-step explanation:

The given system of equations is

2x+4y=8

and

6x+3y=-3

The augmented matrix is

\left[\begin{array}{ccc}2&4&|8\\6&3&|-3\end{array}\right]

\frac{1}{2}R_1\to R_1

\left[\begin{array}{ccc}1&2&|4\\6&3&|-3\end{array}\right]

-6R_1+R_2\to R_2

\left[\begin{array}{ccc}1&2&|4\\0&-9&|-27\end{array}\right]

-\frac{1}{9}R_2\to R_2

\left[\begin{array}{ccc}1&2&|4\\0&1&|3\end{array}\right]

-2R_2+R_1\to R_1

\left[\begin{array}{ccc}1&0&|-2\\0&1&|3\end{array}\right]

Hence x=-2,y=3

3 0
3 years ago
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