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soldi70 [24.7K]
3 years ago
12

Repeated addition: 1 3 + 1 3 + 1 3 = a b a = b =

Mathematics
2 answers:
IgorLugansk [536]3 years ago
5 0

Answer:

39

Step-by-step explanation:

13 + 13 + 13 = 39

13 · 3 = 39

VMariaS [17]3 years ago
3 0

Answer:

part 1: 6, 9

part 2: 16, -24

part 3: commutative

part 4: inverse

part 5: identity

Step-by-step explanation:

edge2020

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DochEvi [55]
Acute because it’s below 90 degrees
6 0
3 years ago
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What is x in 8 ^ (x - 1 ) = 16 ?<br><br>Please help. ​
Anna007 [38]

Answer:

x=7/3

Step-by-step explanation:

8 ^ (x - 1 ) = 16

We need to rewrite 8 as 2^3  and 16 as 2^4

2^3 ^ (x - 1 ) = 2^4

We know that a^b^c = a^(b*c)

2^(3(x-1)) = 2^4

The bases are the same so the exponents are the same

3(x-1) = 4

Distribute

3x-3 = 4

Add 3 to each side

3x-3+3 = 4+3

3x = 7

Divide by 3

3x/3 = 7/3

x=7/3

4 0
3 years ago
The US Department of Energy reported that 48% of homes were heated by natural gas. A random sample of 333 homes in Oregon found
Lera25 [3.4K]

Answer:
Option B) Do not reject null hypothesis, there is not enough evidence to support the claim that the proportion of homes in Oregon heated by natural gas is different from the 48% that the US Department of Energy reported.
Step-by-step explanation:
We are given the following in the question:
Sample size, n = 333
p = 48% = 0.48
Alpha, α = 0.01
Number of women belonging to union , x = 149
First, we design the null and the alternate hypothesis  

This is a two-tailed test.  
Formula:


Putting the values, we get,

Now, we calculate the p-value from the table.
P-value = 0.273079
Since the p-value is greater than the significance level, we fail to reject the null hypothesis and accept the null hypothesis.
Thus, there is not enough evidence to support the claim that proportion of homes in Oregon that were heated by natural gas is different from what was reported.
B. Do not reject null hypothesis, there is not enough evidence to support the claim that the proportion of homes in Oregon heated by natural gas is different from the 48% that the US Department of Energy reported.
8 0
3 years ago
Will mark brainliest
SVETLANKA909090 [29]

Answer:

I think the answer should be Mat A cause it has more space.

3 0
3 years ago
Can someone help please
yanalaym [24]

Step-by-step explanation:

a) The volume of the prism is

V = (n^2 - 1)×(n^2 - 1)×(5n)

\:\:\:\:= (n^4 - 2n^2 + 1)(5n)

\:\:\:\:=5n^5 - 10n^3 + 5n

b) If the dimensions L of the prism are tripled, the new volume will be

V' = (3L)^3 = 27L^3 = 27V

so it will increase by a factor of 27.

7 0
3 years ago
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