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yanalaym [24]
3 years ago
12

The coordinates of point A on a grid are (−2, −4). Point A is reflected across the y-axis to obtain point B. The coordinates of

point B are (
, −4).
Mathematics
1 answer:
SpyIntel [72]3 years ago
4 0

Answer:

B = (2, - 4)

Step-by-step explanation:

Under a reflection in the y- axis

A point (x, y) → (- x, y), hence

A(- 2, - 4) → B(2, - 4)

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2 years ago
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sonja wants to have $14000 in 13 years. calculate how much she should invest now at 6% interest, compounded semiannually in orde
mariarad [96]
She should invest $6491.73.

The equation we use to solve this is in the form
A=p(1+\frac{r}{n})^{nt}, 
where A is the total amount in the account, p is the principal invested, r is the interest rate as a decimal, n is the number of times per year the interest is compounded, and t is the amount of time.

A in our problem is 14000.
p is unknown.
r is 6% = 6/100 = 0.06.
n is 2, since it is compounded semiannually.
t  is 13.

14000=p(1+\frac{0.06}{2})^{13*2}
\\
\\14000=p(1+0.03)^{26}
\\
\\14000=p(1.03)^{26}
\\
\\\text{Dividing both sides by }1.03^{26}\text{, we have}
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\\6491.73\approx p
5 0
3 years ago
Debbie made $9/hour at her last job. At her new job, she makes $13/hour. What is the percent change?
Over [174]

Answer:

percentage change is

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4/9×100

400/9

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5 0
2 years ago
What is the value of x?
Rus_ich [418]

Answer:

x=9

Step-by-step explanation:

2x=x+9

Subtract x from both sides;

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Simplify;

x=9

7 0
3 years ago
Mike has $136 to spend at the amusement park. He spends 25% of that money on his ticket into the park. How much does Mike have l
tekilochka [14]
Hey there,

Question : <span>Mike has $136 to spend at the amusement park. He spends 25% of that money on his ticket into the park. How much does Mike have left to spend?

Answer : 
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Left = $136 - $34
       = $102

Hope this helps :))

<em>~Top♥</em>
</span>
8 0
3 years ago
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