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meriva
3 years ago
6

Helpppp, explain ur answer thx

Mathematics
1 answer:
san4es73 [151]3 years ago
3 0
Answer is the 3rd choice, i’m a math teacher :p
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The graph of a quadratic function y = x2 is symmetric about the ________that passes through its vertex.
7nadin3 [17]

Answer:

Vertical line

Step-by-step explanation:

3 0
3 years ago
Which of the following indicates the division property of equality when solving –12x = 48?
vampirchik [111]
A is the answer because I did befor
6 0
3 years ago
Can someone help me?
Anestetic [448]
18. A line perpendicular to the x-axis is a vertical line.

The equation of a vertical line is

x = k,

where k is the x-coordinate of every point on the line.
Since this vertical line goes through point (-10, 0.5), and this point has x-coordinate -10, then every point on the line has x-coordinate -10.
The equation is

x = -10

19.

f(x) =  \dfrac{2}{3}x - 1

To find f(9), just replace x with 9 and evaluate the expression.

f(9) =  \dfrac{2}{3} \times 9 - 1

f(9) =  \dfrac{18}{3} - 1

f(9) = 6 - 1

f(9) = 5

20.

\sqrt{128}  =

= \sqrt{64 \times 2}

= \sqrt{64} \times \sqrt{2}

= 8 \times \sqrt{2}

= 8 \sqrt{2}
6 0
4 years ago
There are 170170 calories in a cup of whole milk and only 9797 in a cup of skim milk. In switching to skim​ milk, find the perce
kvasek [131]
From 170 to 97, there's a difference of 73.

so hmm if we take 170 to be the 100%, what is 73 in percentage off of it?

\bf \begin{array}{ccll}
amount&\%\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
170&100\\
73&p
\end{array}\cfrac{170}{73}=\cfrac{100}{p}\implies p=\cfrac{73\cdot 100}{170}
5 0
3 years ago
If you save one penny on January 1, two pennies on January 2, three pennies on January 3, and continue this pattern for one year
monitta
The given condition is an arithmetic sequence with the first term (a1) is 1 penny and the common difference (d) is 1 penny. A year that is not a leap year has 365 days (n). The arithmetic series (S) is calculated through formula,
 
                               S = (n/2) (2a1 + (n - 1) x d)

Substituting the known values,
 
                               S = (365/2) (2 x 1 + (365 - 1) x 1)
 
                               S = 66795 pennies

A dollar is 100 pennies. Therefore, at the end of the year, the total savings is $667.95.




4 0
4 years ago
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