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Mrac [35]
2 years ago
15

Decide if the statement is true or false. 7 is a solution of - 4x = -28.

Mathematics
1 answer:
vichka [17]2 years ago
8 0

True,

-4x=-28

Divide by -4 on both sides and since the negatives cancel eachother, you're left with x=7

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Diego was trying to write 2^3 · 2^2 with a single exponent and wrote 2^3·2^2 = 2^3*2 = 2^6 . Explain to Diego what his mistake w
cupoosta [38]

Answer:

2^3·2^2 = 2^3+2 = 2^5  

Step-by-step explanation:

Diego was trying to write 2^3 · 2^2

He wrote  2^3·2^2 = 2^3*2 = 2^6  

But this is wrong because when bases are same exponents are added.

This is the law of exponents.

The correct form would be

2^3·2^2 = 2^3+2 = 2^5  

For understanding it better we can write it like this

2^3·2^2 =

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5 0
2 years ago
Please help I’m struggling
gulaghasi [49]

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Step-by-step explanation:

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Hope this helps :)

3 0
2 years ago
How many proportional relationships are shown in the coordinate plane below?
aev [14]

Answer:

C: 2

Step-by-step explanation:

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3 0
3 years ago
We have an urn with 3 green and 4 yellow balls. We choose 2 balls randomly without replacement. Let A be the event that we have
Nana76 [90]

Answer:

Step-by-step explanation:

Urn has 3 green and 4 yellow

we choose 2 balls randomly

so samples  space for this selection is

\left [ \left ( Y,G\right ),\left ( G,Y\right ),\left ( G,G\right ),\left ( Y,Y\right )\right ]

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P(A)=Probability of event (G,Y)+Probability of event (Y,G)

=\frac{^3C_1\times ^4C_1}{7\times 6}+\frac{^4C_1\times ^3C_1}{7\times 6}

=\frac{4}{7}

5 0
3 years ago
At a carnival, Ryan bought 16 packs of 7 tickets each. He also found 9 more tickets on the ground. How many tickets did Ryan hav
V125BC [204]

Answer:

121 tickets

Step-by-step explanation:

16x7+9=121

I hope this helps

3 0
2 years ago
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