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ozzi
3 years ago
10

Perform the indicated operation. 7 + 9 + (-4)

Mathematics
2 answers:
Marrrta [24]3 years ago
8 0
   7 + 9 + (-4) = 16 + (-4)
= 12
e-lub [12.9K]3 years ago
6 0
=12 if we are talking in terms of basic operations.
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A soft drink manufacturer wishes to know how many soft drinks adults drink each week. They want to construct a 85% confidence in
andreev551 [17]

Answer: 547

Step-by-step explanation: The margin of error formulae is given below as

Margin of error = critical value ×(σ/√n)

Where σ = standard deviation and n is the sample size.

From our question, margin of error = 0.08

Variance is 1.691,

hence σ = √variance = √1.691

= 1.3.

We will be using a z test for our critical value this is because a soft drink manufacturer will always produce drinks more than 30 in numbers.

The critical value for a 85% confidence interval is 1.44.

Hence critical value is 1.44.

By substituting the parameters, we have that

0.08 = 1.44 × 1.3/ √n

0.08 = 1.873/ √n

By cross multiplying

0.08 × √n = 1.873

√n = 1.873/ 0.08

√n = 23.41

n = (23.41)²

n = 547.

7 0
3 years ago
A company has budgeted direct materials purchases of $300,000 in July and $480,000 in August. Past experience indicates that the
jasenka [17]

Answer:

The budgeted cash disbursement for August is $696,000

Step-by-step explanation:

July direct material purchase is

30% of 300000 =$90000

August direct material purchase

70% of 480000 = $336000

Wage expense =$ 150000

Purchase of office equipment= $72000

Selling and administrative expense= $ 48000

Depreciation=0

Adding everything gives $696000, which is the budgeted cash disbursement for August.

4 0
3 years ago
If I was making cupcakes and brownies for my school fundraiser and the brownies needed 1.28cups of sugar and the cupcakes needed
xxMikexx [17]
You need A lot of sugar
5 0
3 years ago
Read 2 more answers
If a seamstress is paid 7.85 per hour and works 18.75 hours in one week how much is she paid for that week
umka21 [38]
$18.75 hours at $7.85 pet hour is exactly 1471875, moving the decimal 4 places to the left and round to the nearest penny is
$147.1875 Or $147.19
4 0
3 years ago
(4y + 2.8)(1.6) how to simplify the problem<br>​
anastassius [24]

Answer:

6.4y+4.48 Is the answer

5 0
2 years ago
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