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eimsori [14]
2 years ago
5

3^c=1/27 what is it??

Mathematics
2 answers:
Anon25 [30]2 years ago
7 0

Answer:

c = -3

Step-by-step explanation:

3^c = \frac{1}{27}\\\\rule{150}{0.5} \\\rightarrow 3 ^c = \frac{1}{27^1}\\\\\rightarrow 3^c = 3^{-3}\\\\\rightarrow c = -3

notsponge [240]2 years ago
5 0
Refer to the attachment

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4 = -8 - x What is x?
Stels [109]

Answer:

2

Step-by-step explanation:

a negative x negative is always a positive

a negative x positive is negative

a positive x positive is negative

7 0
3 years ago
Read 2 more answers
Help me . With work to plz
Zepler [3.9K]

Answer:

57°

Step-by-step explanation:

Angles EGB and EHD are corresponding angles of two parallel lines cut by a transversal; therefore, they are congruent.

m<EGB = m<EHD = 57°

7 0
2 years ago
(7y – 20)<br> (5х – 38)<br> (3х – 4)<br> -<br> m
egoroff_w [7]

Answer:

um

Step-by-step explanation:

8 0
2 years ago
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
You have prices to rev
Alex17521 [72]

Answer:

34 minutes

Step-by-step explanation:

Given

Time\ Spent = 6

Phone\ Calls = 40

Required

Number of minutes left to spend (x)

Since there's only 1 minute left to spend on every other call;

Time left = x * 1

Time left = x

The required can further be calculated using:

Time\ Spent + Time\ Left = Phone\ Calls

This gives:

6 + x = 40

Subtract 6 from both sides

x = 40 - 6

x = 34

<em>Hence, there are 34 minutes left to spend</em>

8 0
3 years ago
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