All Questions ⁺⁰237643 Questions

+1

603

2

+123

How many will be present at 8pm?

a.
The number of bacteria present in a colony is 180 at 12 noon. The bacteria grows at a rate of 23% per hour.

How many will be present at 8pm? read more ..

Marss Feb 23, 2019

+1

797

1

+123

I need help with solving the equations please.

Solve the following exponential equations:

c. (4)^x-3 = 1/16
read more ..

Marss Feb 23, 2019

0

775

1

+642

help pls with these questions

cerenetie Feb 23, 2019

0

955

2

+642

1.What are the coordinates of the hole in the graph of the function f(x) ?

1.What are the coordinates of the hole in the graph of the function f(x) ?

read more ..

cerenetie Feb 23, 2019

0

779

1

+123

what are the solutions in the interval: 0 <= θ <= 2pi

8. Solve each of the following trigonometric equations and find all solutions in the interval

b. sin x + sqrt2 = -sin x
read more ..

Marss Feb 23, 2019

0

2280

3

Binomial Distributions

Suppose that the prevalence of a certain type of tree allergy is 0.42 in the general population. If 100 people randomly chosen from this population are tested for this allergy, what is the probability that exactly 42 of them will have this allergy? Please read more ..

Guest Feb 23, 2019

0

1457

1

+123

what is the exact value of tan- 13pi/6

what is the exact value of tan- 13pi/6

Marss Feb 23, 2019

0

535

2

Please help!

Six coins look identical, but one of them is known to be heavier than the rest. Using a balance scale, what is the least amount number of weighings required to identify the heavy coin?
please help!!! thank you in advance!!!
I think that read more ..

Guest Feb 23, 2019

0

529

1

Please help!

What is the sum of all two-digit positive integers that are increased by 75% when their digits are reversed?
please include an explanation because I am very confused.

Guest Feb 23, 2019

0

670

2

What are the equations?

Guest Feb 23, 2019

0

1011

1

A 10-meter telephone pole casts a 17-meter shadow directly down a slope when the angle of elevation of the sun is 42o (see figure). Find θ,

A 10-meter telephone pole casts a 17-meter shadow directly down a slope when the angle of elevation of the sun is 42o (see figure). Find θ, the angle of elevation of the ground (to the nearest tenth of a degree). (A calculator read more ..

Guest Feb 23, 2019

0

729

5

Please help!

An equilateral triangle has side length 8. Find its area. Simplify your answer to the lowest terms.
The answers are:
A) 4
B) 4sqrt3 read more ..

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Guest Feb 23, 2019

0

572

1

sec(-46\deg 6'12') find the decimal value

sec(-46\deg 6'12") find the decimal value

Guest Feb 23, 2019

0

812

3

help plz

Express as a mixed number:

Guest Feb 23, 2019

0

635

1

Is there no solution?

Solve the following logarithm below:
log_6 (-5r - 2) = log_6 ( r - 4)
there is no solution to this?

Guest Feb 23, 2019

0

945

1

Interpret Trig Models

Hello, I have two questions that I need help with:

1st Question:
The graph shows the distance y, in feet, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of read more ..

Guest Feb 23, 2019

0

638

5

Base 7 Question

Find how many digits the base 7 number has when written in base 7.

I tried using a "big number calculator", but the answer was several pages long. Obvisously, there's a better way to do this.
read more ..

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Guest Feb 23, 2019

0

1090

1

what each of the values of a, b, h, and k does to affect the graph?

1. To obtain the graph of y = asinb (x - h) + k ,

explain what each of the values of a, b, h, and k affects the graph of function y = sin x

Guest Feb 23, 2019

+1

383

0

Are these correct?

What is the expand, and condense of: log_7 (x^3/y)^3

are these correct?
expand: 3 log_7 (x^3) – 3 log_7 (y) read more ..

Guest Feb 23, 2019

+1

407

0

help plz

If we write 57^7/7^7 in the form A^b , where a and b are positive integers, and a is as small as possible, then what is ?

Guest Feb 23, 2019

Feb 22, 2019

0

862

1

is 10^log6 = to 6

is 10^log6 = to 6

Guest Feb 22, 2019

0

524

1

Please Help!

If is a constant and if there exists a unique value of for which the quadratic equation has one real solution, then find .

Guest Feb 22, 2019

0

465

1

Geometry Help

Trapezoid ABCD has height 3 and DC || AB. The diagonals BD and AC are perpendicular to each other, and AC = 5. What is the area of the trapezoid?

Guest Feb 22, 2019

0

588

1

stats

Assume that a procedure yields a binomial distribution with a trial repeated n times. Use the binomial probability formula to find the probability of x successes given the probability p of success on a single trial. nequals7, xequals5, pequals0.75 read more ..

Guest Feb 22, 2019

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