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rusak2 [61]
3 years ago
11

If a= -3 what is 3a^2

Mathematics
1 answer:
trapecia [35]3 years ago
4 0

Answer:

27

Step-by-step explanation:

If a= -3 what is 3a^2 = 27

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Answer the following seperate questions
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Answer:

19a.) 6x-1=4  --> 6x=5 --> x=5/6

b.) 4w+3=10  --> 4w=7 --> w=7/4

Evaluate when t= -2

20a.) 5t-3  --> 5(-2)-3= -10-3= -13

b) the sequence 5+t, 5+2t, 5+3t, 5+4t.  = 3, 1, -1, -3

c.) 18- t²  =18-(-2)^2= 18-4=14

20d) the sequence 2t- 3, 2t-5, 2t-7, 2t-9. = -7, -9, -11, -13

21.) Find the value of these expressions when p=2, q=3 and r=6

21 a)5q  = 5(3)=15

b) p+q = 2+3= 5

c) qr = 3*6= 18

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e) r² = 6^2=36

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3 years ago
What is the sum of the digits of the first 99 counting numbers?
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3 years ago
write an equation to represent the relationship "a number decreased by negative 7 is the same thing as 48
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4 years ago
Read 2 more answers
If a^16 is the same as 2^64, what is the absolute value of a?
Alisiya [41]

Answer:

a=16

Step-by-step explanation:

we know the power rule:

(a^{m})^{n} =a^{m*n}

In this problem we have

a^{16}=2^{64}

rasise both sides to 1/16

(a^{16})^{\frac{1}{16}}=(2^{64})^{\frac{1}{16}}

Applying the power rule

(a)^{\frac{16}{16}}=(2)^{\frac{64}{16}

simplify

a=(2)^{4}

a=16

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4 years ago
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Answer:

Dependent.

Quantitative.

Step-by-step explanation:

<u>Determine whether the sampling is dependent or independent.</u>

This is a matched-pair data test, as the same students are measured two times in order to compare the results.

This type of samples are dependent, as they are correlated between them.

<u>Indicate whether the response variable is qualitative or quantitative.</u>

The response variable is the test score. This is a quantitative variable, as this can be defined by a number. Both sample scores are averaged and compared.

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3 years ago
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