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sergiy2304 [10]
3 years ago
7

ASAP RIGHT NOW. I AM ON A LIMIT RIGHT NOW. 100 BRAINLEST POINTS WHOEVER ANSWERS FIRST AND GETS IT CORRECT.

Mathematics
1 answer:
horrorfan [7]3 years ago
4 0

Answer:

The answer is $312.00.

Step-by-step explanation:

First you need to find the amount for the groceries and utilities.

The groceries would be $780.00 and the utilities would be $468.00.

Next you have to add them together which would be $1248.00.

Then you have to find the amount for savings.

The Savings would be $936.00.

Lastly you have to subtract $936.00 from $1248.00.

Your final answer will be $312.00.

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I need help solving this problem
guapka [62]

Answer:

- 5/13

Step-by-step explanation:

tans = 5/12 = height/base

Using Pythagoras, hypotenuse = √12² + 5² = 13

Therefore coss had to be 12/13

But since cos s < 0, cos s = - 12/13

Thus,

tanA = sinA/cosA

tanA cosA = sinA

(5/12)(- 12/13) = sinA

- 5/13 = sinA

8 0
3 years ago
Read 2 more answers
Weight of a rock: In a geology course, students are learning to use a balance scale to accurately weigh rocks. One student plans
statuscvo [17]

Answer:

The student who weighted the rock 5 times has a 95% confidence interval of (25.2, 29.1) which is guaranteed to be more wider (less precise) than the other student who weighted the rock 20 times.

Step-by-step explanation:

What is Confidence Interval?

The confidence interval represents an interval that we can guarantee that the target variable will be within this interval for a given confidence level.  

The confidence interval is given by

CI = \bar{x} + t_{\alpha/2}(\frac{\sigma}{\sqrt{n} } ) \\

Where \bar{x} is the mean weight \sigma is the standard deviation t_{\alpha/2} is the critical value from t-table and n is the sample size.

The term t_{\alpha/2}(\frac{\sigma}{\sqrt{n} } ) is known as margin of error.

As the sample size is decreased the corresponding margin of error increases which results in wider confidence interval which means smaller precision.

The student who weighted the rock 5 times has a 95% confidence interval of (25.2, 29.1) which is guaranteed to be more wider (less precise) than the other student who weighted the rock 20 times.

We can say with 95% confidence that the true mean weight of the rock is within the interval of (25.2, 29.1).

7 0
3 years ago
Carey is trying to decide between two guitars. The first had an original price of $160, but is on sale for $100. The second had
Zolol [24]

Subtract the sale price from the original price then divide the difference by the original price.

Guitar 1: 160 -100 = 60

60/160 = 0.375 x 100 = 37.5%

Guitar 2: 250 - 150 = 100

100/250 = 0.4 x 100 = 40%

The answer is the second guitar has a greater percent change of approximately 40%

3 0
3 years ago
Read 2 more answers
HELP HELP HELP HELP HELPPPP.
Firdavs [7]

Answer:

letter d

................

5 0
3 years ago
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Which of the following rational numbers has the smallest absolute value? -1.5, -4, 8, or 0.5?
ICE Princess25 [194]
The answer is 0.5

you're welcome
6 0
3 years ago
Read 2 more answers
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