3 years ago

Nnnnnnnnnnnnn nnnnnn nnnnn

Mathematics

1 answer:

Serhud [2]3 years ago

5 0

What's the question...?

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Find an explicit formula for the following sequence, an, which starts with a1=7. 7,−14,28,−56,112,…

Digiron [165]

Answer:

simply multiply each number by -2

Step-by-step explanation:

7 * -2 = -14 -14 * -2

brainliest answer plz!

6 0

3 years ago

Read 2 more answers

(WILL GIVE BRAINLIEST) Which of the following exponential functions goes through the points (1, 6) and (2, 12)?

olganol [36]

Answer:

$\boxed{a. \: f(x) = 3(2)x} \: is \: correct$

Step-by-step explanation:

$if \: the \: points \: are \: (1, 6) \: and \: (2, 12) \to \\ then \to \\ m = \frac{12 - 6}{2 - 1} = \frac{6}{1} \\ \boxed{m = 6} \\ y - 6 = m(x - 1) \\ y = 6x - 6 + 6 \\ y = 6x = (3)(2)x \\ but \: y = f(x) \to \: hence \to \\ \boxed{ f(x) = 3(2)x}$

4 0

3 years ago

Does anyone know how to do this I need help

baherus [9]

Answer:

Step-by-step explanation:

In order to find the inverse you switch the x and y and solve for y.

x=(3/y )+3

x-3=3/y

y(x-3)=3

y= 3/x-3

no that doesn't equal h(x)

6 0

3 years ago

Find the area of a sector with a central angle of 125 degrees and a radius of 11cm. Express the approximate answer to the neares

White raven [17]

The answer is c I’m pretty aure

5 0

3 years ago

An environmental science teacher at a high school with a large population of students wanted to estimate the proportion of stude

AnnZ [28]

Answer:

60 students

Step-by-step explanation:

The confidence interval of a proportion is given by:

$p\pm z*\sqrt{\frac{p*(1-p)}{n} }$

Where 'p' is the proportion of students who responded 'yes', 'z' is the z-score for a 95% confidence interval (which is known to be 1.960), and 'n' is the number of students in the sample.

If the confidence interval is from 0.584 to 0.816, then:

$p=\frac{0.584+0.816}{2}=0.7 \\0.816-0.584=2*(1.96*\sqrt{\frac{p*(1-p)}{n}}) \\0.116=1.96*\sqrt{\frac{0.7*(1-0.7)}{n}}\\n=16.8966^2*(0.7*0.3)\\n=60\ students$

60 students were in the sample.

8 0

3 years ago