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IrinaVladis [17]
3 years ago
14

Fill in the blank. The absolute value of every nonzero integer is a(n) _____ integer.

Mathematics
2 answers:
Savatey [412]3 years ago
8 0

Answer:

your answer would be a positive integer

Sedbober [7]3 years ago
3 0

Answer: positive

The absolute value of every nonzero integer is a positive integer.

Examples are

|-2| = 2

|7| = 7

The absolute value represents distance which can never be negative. Negative distance does not make sense.

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In the given figure, O is the centre of the circle with chords AP and BP being
Ainat [17]

Answer:

It's 70°

Step-by-step explanation:

∠APB = ∠RPQ = 35°

Now, ∠AOB and ∠APB are angles subtended by an arc AB at centre and at the remaining part of the circle .

∴∠AOB = 2∠APB = 2 × 35° = 70°

5 0
3 years ago
In 2000 the population of a country reached 1 ​billion, and in 2025 it is projected to be 1.2 billion. ​(a) Find values for C an
Mice21 [21]

Answer:

(a) The value of C is 1.

(b) In 2010, the population would be 1.07555 billions.

(c) In 2047, the population would be 1.4 billions.

Step-by-step explanation:

(a) Here, the given function that shows the population(in billions) of the country in year x,

P(x)=Ca^{x-2000}

So, the population in 2000,

P(2000)=Ca^{2000-2000}

=Ca^{0}

=C

According to the question,

P(2000)=1

\implies C=1

(b) Similarly,

The population in 2025,

P(2025)=Ca^{2025-2000}

=Ca^{25}

=a^{25}                    (∵ C = 1)

Again according to the question,

P(2025)=1.2

a^{25}=1.2

Taking ln both sides,

\ln a^{25}=\ln 1.2

25\ln a = \ln 1.2

\ln a = \frac{\ln 1.2}{25}\approx 0.00729

a=e^{0.00729}=1.00731

Thus, the function that shows the population in year x,

P(x)=(1.00731)^{x-2000}     ...... (1)

The population in 2010,

P(2010)=(1.00731)^{2010-2000}=(1.00731)^{10}=1.07555          

Hence, the population in 2010 would be 1.07555 billions.

(c) If population P(x) = 1.4 billion,

Then, from equation (1),

1.4=(1.00731)^{x-2000}

\ln 1.4=(x-2000)\ln 1.00731

0.33647 = (x-2000)0.00728

0.33647 = 0.00728x-14.56682

0.33647 + 14.56682 = 0.00728x

14.90329 = 0.00728x

\implies x=\frac{14.90329}{0.00728}\approx 2047

Therefore, the country's population might reach 1.4 billion in 2047.

3 0
3 years ago
The quality control manager of a light bulb factory needs to estimate the average life of a large shipment of light bulbs. The p
eimsori [14]

Answer:

b) yes

The manufacturer has the right to state that the light bulbs last on average 400 hours

Step-by-step explanation:

<u><em>Explanation:-</em></u>

<em>Given sample size 'n' = 64</em>

<em>Given standard deviation of the Population (σ)=100</em>

<em>Mean of the sample (x⁻) = 350 hours</em>

<em>95% of confidence interval is determined by</em>

(x^{-} -Z_{0.95} \frac{S.D}{\sqrt{n} } , x^{-} +Z_{0.95} \frac{S.D}{\sqrt{n} } )

((350 -1.96 \frac{100}{\sqrt{64} } , 350+1.96\frac{100}{\sqrt{64} }  )

(350-24.5 , 350+24.5)

<em>(325.5 , 374.5)</em>

<u><em>Conclusion:-</em></u>

<u><em>Yes</em></u>

The manufacturer has the right to state that the light bulbs last on average 400 hours

4 0
3 years ago
How would u model 5x(2/3) Explain
Daniel [21]
2/3 time 5
5×2 is 10 so the numerator is ten
1×3 is 3 so the denominator is three
the answer is 10/3
5 0
3 years ago
(x^2-2)^2-10(x^2-2)+21=0 find one value of x that is a solution to the equation
Sloan [31]

Answer:

x=3; x=-3; x=√5; x=-√5

Step-by-step explanation:

6 0
3 years ago
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