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-BARSIC- [3]
4 years ago
10

What is expanded number 289 mean

Mathematics
1 answer:
natita [175]4 years ago
4 0
200
80    thats the answer 
9
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Which of the following is false for the hyperbola (x+5)^2/4^2 - (y-2)^2/3^2=1
disa [49]

Answer:

C)One of the vertices is (-10,2)

Step-by-step explanation:

Given the hyperbola: \dfrac{(x+5)^2}{4^2} -\dfrac{ (y-2)^2}{3^2} =1

The standard equation for a hyperbola with a horizontal transverse axis is:

\dfrac{(x-h)^2}{a^2} -\dfrac{ (y-k)^2}{b^2} =1 where the center is at (h, k).

For our given hyperbola, the center (h,k)=(-5,2)

Now:

c^2=a^2+b^2\\c^2=4^2+3^2\\c^2=25\\c=5

Since the center is at (-5,2), its foci (-c,0) and (c,0) are:

(-5-5,2) and (-5+5,2)= (-10,2) and (0,2)

Similarly, since the center is at (-5,2), its vertices, (-a,0) and (a,0) are:

(-5-4,2) and (-5+4,2)= (−9,2), (−1,2).

Therefore, the odd option is C.

3 0
3 years ago
The price of a camera including taxes is 17.5% is 94 dollars. what was its price before the taxes?
inysia [295]
77.55 or 77.6 i think
5 0
3 years ago
Ivanna deposits $600 into an account that pays simple interest at a rate of 3% per year. How much interest will she be paid in t
andrezito [222]
Given here,

Principle [P] = $600

Rate [R] = 3

Time [T] = 2

We know,

Simple Interest = \frac{Principle * Rate * Time}{100}

=  \frac{600*3*2}{100} 
= 36


6 0
4 years ago
Does the function model exponential growth or decay? <br><br> h(x) = 3/4 • (1/6)^x
Tanzania [10]

Answer:

it is decay

Step-by-step explanation:

i did the  khan mopnkey

4 0
3 years ago
Simplify the expression 2 (2 + 4y) + 3x.<br> PLS ANSWER ASAP DUE 9:20
Novay_Z [31]

Answer:

5x+8y

Step-by-step explanation:

We can first open the brackets by using the distrubitive propety.

2(x+4y)+3x

2x+8y+3x

Now we can combine like terms.

5x+8y.

I combined the 3x and the 2x. This works because imagined I have 3 of something then I got 2 more of that something I would now have 5 of that something.

Hoped this helped,

JoeLouis2

7 0
3 years ago
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