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Brums [2.3K]
3 years ago
9

18 - 2x = y

Mathematics
1 answer:
DerKrebs [107]3 years ago
6 0

B. Y equals 0, because if you plug it in ( multiply 2 by 9 ) you will get 18-18 which equals 0.
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Choose the correct equation for an arithmetic<br> sequence in which t(4) = 8 and t(10) = 32<br> -
nadya68 [22]

Answer:

The equation is t(n) = -4 + 4(n-1)

Step-by-step explanation:

Arithmetic sequence:

In an arithmetic sequence, the difference between consecutive terms, called common difference, is always the same.

The general equation for an arithmetic sequence is:

t(n) = t(1) + d(n-1)

Taking the mth term as reference, the equation can be written as:

t(n) = t(m) + d(n-m)

t(4) = 8 and t(10) = 32

The common difference can be found:

t(n) = t(m) + d(n-m)

t(10) = t(4) + d(10-4)

6d = 24

d = \frac{24}{6} = 4

So

t(n) = t(1) + 4(n-1)

Finding the first term:

t(4) = t(1) + 4(n-1)

So

t(1) = t(4) - 12 = 8 - 12 = -4

So

The equation is t(n) = -4 + 4(n-1)

8 0
3 years ago
A gym membership is offered in January for 14.99 per month. If you pay upfront for the year, you are given a 15% discount on the
hoa [83]

Answer:

$27 approx

Step-by-step explanation:

Given data

Membership fee= 14.99 per month

for a year the fee is 14.99*12= 179.88

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=0.15*179.88

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6 0
3 years ago
Y = 2(x - 8)(x+2)
ss7ja [257]

Answer:

Step-by-step explanation:

y=2(x-8)(x+2)

The x intercepts occur when y=0, so when x=8 and -2

The vertex is where the equation is at a minimum/maximum in this case (x,y)=(3,-50)

The axis of symmetry occurs between the two roots, 8 and -2 which x=3

The y intercept is the value of y when x=0, in this case (0, -32)

5 0
3 years ago
Which inequality has the solution set shown in the graph?
irina1246 [14]

Answer:

D. y<u>></u><u> </u>1

The shaded area on the graph is y>1 but since the line is solid it is also equal to 1.

7 0
3 years ago
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Question 4<br> What is the y-intercept of the line?
grandymaker [24]

Answer:

1

Step-by-step explanation:

the line crosses the y-axis at the point (0, 1), which is a y-intercept because x=0, so the y-intercept would be 1

5 0
3 years ago
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