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Sonbull [250]
3 years ago
11

Jason bought 4 new baseball trading cards to add to his collection. The next day his dog ate half of his collection. There are n

ow only 39 cards left. How many cards did Jason start with?
Mathematics
1 answer:
AlladinOne [14]3 years ago
3 0

Answer:

78

Step-by-step explanation:

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Help please, try to explain it in steps for me if u can't that's fine, ty!
Iteru [2.4K]

Answer:

B

Step-by-step explanation:

We are given that Expression One is:

2\cdot 10^x

And Expression Two is:

4\cdot 10^{x+y}

We are given that the value of Expression Two is 20,000 times greater than the value of Expression One. And we want to find the value of <em>y.</em> In other words:

4\cdot 10^{x+y}=20000(2\cdot 10^x)

We can divide both sides by four:

10^{x+y}=10000\cdot 10^x

Recall that:

x^a\cdot x^b=x^{a+b}

Therefore:

10^x\cdot 10^y=10000\cdot 10^x

Divide both sides by 10ˣ:

10^y=10000

Solve for <em>y: </em>

<em />\displaystyle y = \log_{10}10000 = 4<em />

Our answer is B.

3 0
3 years ago
Can someone help? What is the answer to this? I need it by 4pm (10^2 - 4 x 8) divided by (8+ 9) The '^' stands for 'to the power
topjm [15]
Do you just want the answer or do you need the work too??
3 0
4 years ago
If f(x) = 3x - 1 and g(x) = x + 2, find (f+ g)(x).
aivan3 [116]

Answer:

the answer is a

8 0
3 years ago
Here's a question for the day, it's simple but it needs explaining.
GuDViN [60]
It is used to see if a graph represents a function because if there is 2 dots or intersecting lines within the other lines then it is not a function. if there is only one line or dot, then yes, it is a function. hope i explained it well.
5 0
3 years ago
Read 2 more answers
The polynomial of degree 3, P(x), has a root of multiplicity 2 at x = 3 and a root of multiplicity 1 at x = -2. The y-intercept
Maru [420]

Answer:

p(x) =  - 0.7(x - 3)^{2} (x + 2)

Step-by-step explanation:

We have that the polynomial, has a root of multiplicity 2 at x = 3 and a root of multiplicity 1 at x = -2.

This means the factored form of the polynomial will be.

p(x) = a(x - 3)^{2} (x + 2)

Also, it was given that, the y-intercept is y=-12.6.

This implies that:

- 12.6= a(0 - 3)^{2} (0 + 2)

- 12.6= a(- 3)^{2} (2)

- 12.6= 18a

Divide both sides by 18;

a =  \frac{ - 12.6}{18}

a= - 0.7

Therefore the polynomial is

p(x) =  - 0.7(x - 3)^{2} (x + 2)

7 0
4 years ago
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