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Gala2k [10]
3 years ago
15

What is the answer to this question

Mathematics
2 answers:
ycow [4]3 years ago
8 0
X = 4    y = - 3

Substitute x for 4 and y for - 3

<u>x² - 4y
</u>    2

<u>4² - 4 *(- 3</u><u>)
</u>       2

<u>16 - ( - 12 )</u>
       2

<u>16 + 12</u>
     2

<u>28</u>  = 14
 2

Solution: 14
Yuri [45]3 years ago
4 0
\frac{x^2-4y}{2} = \frac{4^2-4*(-3)}{2} = \frac{16+12}{2} = \frac{28}{2} =14
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Expression best estimates Negative 18 and one-fourth divided by 2 and two-thirds?
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This is my expression

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How do you write 43,080,700 in expanded form?
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3 years ago
Read 2 more answers
A line goes through the point (6,-2) and has a slope of -3. What is the value of a if the point (a,7) lies on the line?​
Vikki [24]

Answer:

<h2>a = 3</h2>

Step-by-step explanation:

The slope of a line given two points can be found by using the formula

m =  \frac{ y_2 - y _ 1}{x_ 2 - x_ 1}  \\

From the question the slope is - 3

To find the value of a we have

- 3 =  \frac{7 -  - 2}{a - 6}  \\  - 3 =  \frac{7 + 2}{a - 6}  \\  - 3(a - 6) = 9 \\  - 3a + 18 = 9 \\  - 3a = 9 - 18 \\  - 3a =  - 9

Divide both sides by - 3

\frac{ - 3a}{ - 3}  =  \frac{ - 9}{ - 3}  \\

We have the final answer as

<h3>a = 3</h3>

Hope this helps you

3 0
3 years ago
Read 2 more answers
"A cylindrical canister contains 3 tennis balls. Its height is 8.75inches, and its radius is 1.5. The diameter of one tennis bal
puteri [66]
----------------------------------------------
Find Volume of 1 tennis ball:
----------------------------------------------
Volume of 1 tennis ball = 4/3 x 3.14 x (2.5 ÷ 2)³

Volume of 1 tennis ball = 8.18 in³

----------------------------------------------
Find Volume of 3 tennis balls:
----------------------------------------------
Volume of 3 tennis balls = 8.18 x 3 = 24.54 in³

----------------------------------------------
Find Volume of teh cylindrical canister:
----------------------------------------------
Volume of the cylindrical canister = 3.14 x 1.5² x (2.5 x 3)

Volume of the cylindrical canister = 52.99 in³

----------------------------------------------
Find unoccupied space:
----------------------------------------------
Unoccupied space = 52.99 - 24.54

Unoccupied space = 28.45 in³

----------------------------------------------
Answer: 28.45 in³
----------------------------------------------


8 0
4 years ago
Read 2 more answers
Use: nCk=n!/k!(n-k)!
alekssr [168]

Answer:

47

Step-by-step explanation:

7x2=14-10=4 so 47 Is an answer

3 0
2 years ago
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