The time it takes to charge the battery of a cell phone is directly proportional to the charge of the battery.
The equation, y = 0.21x, is used to approximate the time it takes to charge the battery of a cell phone.
Cell Phone Battery Charge
100
70
60
Bettery Charge (%)
SON
40
BO
20
NON
Time (AM)
Approximate how long it will take the battery to charge to 100%.
4 hours
7 hours
6 hours
5 hours
Please help me

Answer:

3600

Step-by-step explanation:

17100 in a total of 114 hrs (24*4+18)

Find it hourly

17100/114=150

Then, multiply by 24 to get the amount it consumers in the day.

150*24=3600

Answer:

first multiply 4 with 18

then divide the answer with 17100

So,

4x18=72

17100 /by 72=237.5

It uses 237.5 watts per day

Checking= 237.5x72=17100

So it is true.

Step-by-step explanation:

Answer:

19π/15

Step-by-step explanation:

Answer:

θ + 19π / 15 this is my answer

Answer:

31.55+5.45

Step-by-step explanation:

4.55+27 would go to 31.55

31.55+5.45

Answer: 37

Step-by-step explanation:

4.55 + 27 = 31.55

31.55 + 5.45 = 37

Answer:

the mean number of pets is 4.

Step-by-step explanation:

if you add all of the numbers together, you get 28. Then you divide 28 by the amount of students.

Answer:

82V

Step-by-step explanation:

regroup terms 50V+V×32

regroup terms 50V+32V

simpfly  82V

Answer:

The angle between Great Falls and Lemhi is approximately 3.02°

Step-by-step explanation:

The location parameters are;

The Great Falls location = 47.5° N, 111.3° W

The location of Lemhi = 45.5 °N and 113.5 °W

Therefore, we have;

The angle between the Great Falls and the poles, AP = 90° - 47.5° = 42.5°

The angle between Lemhi and the poles, PB = 90° - 45.5° = 44.5°

The angle between the lines of longitude, P = 113.5° - 113° = 0.5°

By the law of cosines for Sides of a spherical triangle, we have;

CosAB = cos AP·cosPB + sinAP·sinPB·cosP

Where;

AB = The angle between Great Falls and Lemhi

∴ CosAB = cos(47.5°) × cos(44.5°) + sin(47.5°) × sin(44.5°) × cos(0.5°) ≈ 0.9986

AB ≈ arccos(0.9986) ≈ 3.02°

The angle between Great Falls and Lemhi ≈ 3.02°

Answer:

1440°

Step-by-step explanation:

the formula used for this is (n-2)×180° where n=# of sides in the polygon

0x0

Step-by-step explanation:

Answer:

look at the y and x intercept

Step-by-step explanation:

Answer:

The answer is B

Step-by-step explanation:

Your substracting the 20,000 from the 560,000

Answer:

6/7

Step-by-step explanation:

yellow = 3

even =3

3+3=6

n(s)=7 so 6/7

Answer:

the area of the floor that is not carpeted 19 m squared

Step-by-step explanation:

7x5 =35  m squared = area of the floor

 4x4 = 16 squared =(area of the carpeted floor)

35-16 = 19

Answer:

48 -52  and 64 - 66

Step-by-step explanation:

sence it dosent give exact numbers on the graph ur going to have to estimate then to find when it increases look for an interval were it goes up reading from left to right and for decreasing look for an interval that is going down reading the graph left to right

9514 1404 393

Answer:

Step-by-step explanation:

x is the number of quarters

__

a) d = 3x . . . . . . the number of dimes is 3 times the number of quarters

b) n = d + 11 = 3x +11 . . . . there are 11 more nickels than dimes

c) p = 2n = 2(3x +11) = 6x +22 . . . . there are twice as many pennies as nickels

d) The total number of coins is ...

  x + d + n + p = 4453

  x + (3x) +(3x +11) +(6x +22) = 4453

  13x +33 = 4453

  13x = 4420

  x = 4420/13 = 340 . . . . number of quarters collected

  3x = 1020 . . . . . . . . . . . .number of dimes collected

  1020 +11 = 1031 . . . . . . . number of nickels collected

  2·1031 = 2062 . . . . . . . . number of pennies collected

There were 340 quarters, 1020 dimes, 1031 nickels, and 2062 pennies collected.

_____

Check

340 +1020 +1031 +2062 = 4453 . . . as required

Answer:

9.60πcm²

Step-by-step explanation:

Area of circular disk, A = πr²

Differntiate A with respect to r

dA/dr = π * (2r^(2-1)) /(2-1) + C

dA/dr = π * 2r/1

dA/dr = 2πr

dA = 2πr * dr

dA = 2πrdr

dA = maximum error ; dr= Error in measurement = 0.2 cm ; r = radius = 24cm

dA = 2π * 24 * 0.2

dA = 9.60πcm²

Answer:

P = 22 ft

A = 18 ft²

See picture

Step-by-step explanation:

The perimeter is all the sides added together. You have to find the missing values. The missing vertical value is 2.5 (4-1.5). The missing horizontal value is 4 (7-3).

Add all the sides together for the perimeter.

Split the shape into 2 rectangles to find the area. Find the area of each rectangles, then add them together to find the total area.

Answer:

2028.863 to the nearest hundredth

The Number In The Hundredth Place Is 6 And The The Number Following Is 3 And Because Its Less Than 5, The 6 Will Remain.

So Its 2028.86

Answer:

2,028.86

Step-by-step explanation:

this is the correct answer to your question

Answer:

[tex]y = \frac{1}{6}x - 4[/tex]

[tex]y = \frac{x}{2} + 2[/tex]

[tex]y = \frac{1}{8}x[/tex]

[tex]y = \frac{1}{6}x+ \frac{2}{3}[/tex]

[tex]y = 12x - 9[/tex]

Step-by-step explanation:

Required

Represent in gradient intercept form

This means that the equation be in form: [tex]y = mx + c[/tex]

Solving (a): [tex]3y = \frac{1}{2}x - 12[/tex]

Divide through by 3

[tex]\frac{3y}{3} = \frac{1}{3*2}x - \frac{12}{3}[/tex]

[tex]y = \frac{1}{6}x - 4[/tex]

Solving (b): [tex]5x = 10y - 20[/tex]

Make y the subject

[tex]10y = 5x + 20[/tex]

Divide through by 10

[tex]y = \frac{5x}{10} + \frac{20}{10}[/tex]

[tex]y = \frac{x}{2} + 2[/tex]

Solving (c): [tex]x = 8y[/tex]

Make y the subject

[tex]8y= x[/tex]

Divide through by 8

[tex]y = \frac{1}{8}x[/tex]

Solving (d): [tex]\frac{1}{2}x = 3y - 2[/tex]

Make y the subject

[tex]3y = \frac{1}{2}x+ 2[/tex]

Divide through by 3

[tex]y = \frac{1}{2*3}x+ \frac{2}{3}[/tex]

[tex]y = \frac{1}{6}x+ \frac{2}{3}[/tex]

Solving (d): [tex]\frac{2}{3}y - 8x = -6[/tex]

Make y the subject

[tex]\frac{2}{3}y = 8x -6[/tex]

Divide through by 3/2

[tex]\frac{3}{2} * \frac{2}{3}y =\frac{3}{2} * ( 8x -6)[/tex]

[tex]y =\frac{3}{2} * ( 8x -6)[/tex]

[tex]y =\frac{3}{2} * 8x -\frac{3}{2} * 6[/tex]

[tex]y = 3 * 4x - 3 * 3[/tex]

[tex]y = 12x - 9[/tex]

Answer:

The answer is "This is the right thing. There might be a surface sample which indicates that the population is not regular".

Step-by-step explanation:

When the community is ordinary or a biosensor, a normal distribution could be calculated for the dependent variable. Data shows chi-squared distributions of n-1 degrees - of - freedom about the dependent variable.

Chi-square was its precise outcome for the data set, while chi-square is a close estimate for non-normal information. So, we should also calculate CI for uncommon information. Throughout the case of an outlier, however, data refers to non because as mean tends to move in a skewed direction to the outer surface.

Answer:

3) 23.32

4) 11.12

5) 2.06

6) 20.69

..................

Answer:

Step-by-step explanation:

3. 12+3.04+8.28= 23.32

4. 6.97+4.15= 11.12

5. 9.04-6.97= 2.07

6. 4.02+0.19+16.48= 20.69

Answer:

Step-by-step explanation:

Add two cube numbers and

one square

number.​

Answer:

x=40 mark brainlist please

Step-by-step explanation:

Answer:

[tex]y = 130 + 45x[/tex]

Step-by-step explanation:

Given

[tex]Base = 130[/tex]

[tex]Monthly = 45[/tex]

Required

The cost for x months

Represent this cost with y.

So:

[tex]y = Base + Monthly * x[/tex]

[tex]y = 130 + 45 * x[/tex]

[tex]y = 130 + 45x[/tex]

Answer:

YES SIR OR I MEANT YES MAM

Answer:

800 × ( 3.87 ÷ 100 ) × 1

= 30.96

Answer:

200 X 300% =$600.00

Step-by-step explanation:

Answer:

A.  y = |x + 4| - 2.

Step-by-step explanation:

The graph of y = |x| is V shaped and passes through the origin and the slope  is 1 (like the given graph).

y = |x + 4) moves the V shaped graph 4 units to the left so the tip of the V is at x = -4.

Now subtracting 2 from this graph will bring the graph to the point where x = -4 and y = -2.

So the given function is y = |x + 4| - 2.

Answer:

[tex] \frac{11}{12} [/tex]

Can I be brainliest pls

Answer:

the approximate standard error is 0.90

Step-by-step explanation:

The computation of the approximate standard error is shown below:

As we know that

Standard error is

= Standard deviation ÷ √mean

= 11 ÷ √150

= 11 ÷ 12.247

= 0.90

Hence, the approximate standard error is 0.90

Answer:

The step-by-step procedure to solve this question is given, using the normal approximation to the binomial distribution.

Step-by-step explanation:

We use the normal approximation to the binomial distribution to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

Can be approximated to a normal distribution, using the expected value and the standard deviation.

The expected value of the binomial distribution is:

[tex]E(X) = np[/tex]

The standard deviation of the binomial distribution is:

[tex]\sqrt{V(X)} = \sqrt{np(1-p)}[/tex]

Normal probability distribution

Problems of normally distributed distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

When we are approximating a binomial distribution to a normal one, we have that [tex]\mu = E(X)[/tex], [tex]\sigma = \sqrt{V(X)}[/tex].

In the U.S., 45% of adults over 65 suffer from one or more of the conditions considered in the study.

This means that [tex]p = 0.45[/tex]

Mean and standard deviation for the approximation, for a sample of n:

[tex]\mu = E(X) = np = 0.45n[/tex]

[tex]\sigma = \sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{0.45*0.55n}[/tex]

Calculate the probability that fewer than 320 out of the n

Using continuity correction, this is [tex]P(X < 320 - 0.5) = P(X < 319.5)[/tex], which is the pvalue of Z when X = 319.5. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{319.5 - 0.45n}{\sqrt{0.45*0.55n}}[/tex]

Just have to replace the value of n, find Z, and then find its pvalue.