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lozanna [386]
3 years ago
14

3x + 2y = 5

Mathematics
1 answer:
Firlakuza [10]3 years ago
7 0

Answer:

I am guessing the 1st one.

Step-by-step explanation:

8x does NOT equal 12 I believe. I am sorry if I am incorrect

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5 tens + 5 tens in standard form
Alexeev081 [22]
5 ten is equal to 50.
So, then what is 50 + 50
100
7 0
3 years ago
Read 2 more answers
HELP PLEASE AYONE
S_A_V [24]
The correct answer would be 
D) y = 32x
This is the correct answer since a proportional relationship equation looks like this
y = mx 
So, in order to find out the answer, you must find the option that looks similar to the equation example. 
Once you find this option, compare them together to make sure that it is the right answer. 
y = mx
y = 32x 
Since the m stands for a number in the equation example, we can say that the correct answer is 
D) y = 32x
6 0
3 years ago
Whats the perimiter of the following rectangle? The side says x - 2 and the bottom says 2x + 1​
irakobra [83]

Answer:

6x-2

Step-by-step explanation:

The perimeter of a rectangle is found by

P = 2(l+w)

  =2( x-2 + 2x+1)

Combine like terms

P = 2(3x-1)

Distribute

P = 6x-2

8 0
3 years ago
You measure 22 textbooks' weights, and find they have a mean weight of 64 ounces. Assume the population standard deviation is 5.
lara31 [8.8K]

Answer:

Step-by-step explanation:

We want to determine a 90% confidence interval for the true population mean textbook weight.

Number of sample, n = 22

Mean, u = 64 ounces

Standard deviation, s = 5.1 ounces

For a confidence level of 90%, the corresponding z value is 1.645. This is determined from the normal distribution table.

We will apply the formula

Confidence interval

= mean ± z ×standard deviation/√n

It becomes

64 ± 1.645 × 5.1/√22

= 64 ± 1.645 × 1.087

= 64 ± 1.788

The lower end of the confidence interval is 64 - 1.788 = 62.21 ounces

The upper end of the confidence interval is 64 + 1.788 = 65.79 ounces

Therefore, with 90% confidence interval, the true population mean textbook weight is between 62.21 ounces and 65.79 ounces

3 0
3 years ago
Harry is reviewing his finances. He compiled a list of expenses and income. Which bar chart that accurately represents Harry's s
kvasek [131]

Answer:

The answer is the (Expenses is between 2,000-2,500) and the (Income is  over 3,000)

Step-by-step explanation:

I just took the test i got it right

4 0
3 years ago
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