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Liono4ka [1.6K]
3 years ago
8

What are the slope and the y-intercept of the linear function that is represented by the graph?

Mathematics
1 answer:
amm18123 years ago
3 0

Answer:

the slope is 4 and the y intercept is 12

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Explain why you can use πr2 to find the area of the base of a cone
olga nikolaevna [1]
The base of a cone is a circle.

The area of a circle is \pi r^2.

Thus, the area of the base of a cone \pi r^2.

The derivation of the formula for the area of a circle involves a bit of calculus, but if you'd like, I can walk you through it.
8 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
2 years ago
Drinking 6 fluid ounces of milk provides 202.5 milligrams of calcium. how many fluid ounces of milk provide 85.5 milligrams of c
Alona [7]
\frac{85.5}{202.5} \times 6 =  2.53\ ounces\ of\ milk
3 0
2 years ago
Read 2 more answers
A rectangular garden is 5 ft longer than it is wide. Its area is 300 ft2. What are its dimensions?​
topjm [15]

Answer:

width=x

length=5x

area= 300ft2

area=lxb

300=5x(x)

300=5x^2

x^2=60

x=7.74

7.74(5)=38.7

dimensions are 38.7ft by 7.74 ft

<u><em>Please mark as brainliest</em></u>

5 0
1 year ago
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What’s 4/5 divided by 3
Valentin [98]

Answer:

\frac{4}{15}

Step-by-step explanation:

remember when dividing with fractions, you are multiplying by the reciprocal.

this means

\frac{4}{5} \div3=\frac{4}{5}*\frac{1}{3}=\frac{4}{15}

6 0
3 years ago
Read 2 more answers
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