can anyone help with this ??

Answer:

14 × 10^(-19) m

Step-by-step explanation:

We are told that the diameter of the red blood cell is 7 × 10^(-6) m

And that number of red blood cells in the person is; 2 × 10^(-13) red blood cells

Since they are held end to end, the length of the line would be;

7 × 10^(-6) × 2 × 10^(-13) = 14 × 10^(-19) m

The probability that Dan buys a sandwich and gets the bus will be 0.16.

Its basic premise is that something will almost certainly happen. The percentage of favorable events to the total number of occurrences.

The probability that Dan buys a sandwich is 0.2.

The probability that Dan gets the bus is 0.8.

Assuming the events are independent.

Then the probability that Dan buys a sandwich and gets the bus will be

P = 0.2 × 0.8

P = 0.16

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Answer:

Muliply 5 x6 then minus

Step-by-step explanation:

Given:

Principal = $600

Rate of simple interest = 3% per year

Time = 8 years

To find:

The simple interest.

Solution:

Formula for simple interest is:

[tex]I=\dfrac{P\times r\times t}{100}[/tex]

Where, P is principal, r is the rate of interest in percent and t is the number of years.

Substituting [tex]P=600,\ r=3,\ t=8[/tex] in the above formula, we get

[tex]I=\dfrac{600\times 3\times 8}{100}[/tex]

[tex]I=6\times 3\times 8[/tex]

[tex]I=144[/tex]

Therefore, the simple interest is $144.

Answer:

110

Step-by-step explanation:

-2.5/2.5

2.5-5x=110

110/2.5-1.3=5x

Answer:

8/27

Step-by-step explanation:

Common difference is 6

Possible values of n is n > 8

(i) The nth term (Uₙ) of an arithmetic series is given by

Uₙ = a + (n-1)d        --------------------(i)

and the sum of the series is given by;

Sₙ = [tex]\frac{n}{2}[/tex](2a + (n-1)d)         ---------------------(ii)

Where;

a = first term of the series

d = common difference of the series

n = the term or number of terms to be added.

Interpret the first statement

The third term of the series is 70. i.e

n = 3

Uₙ = U₃ = 30

Substitute these values into equation (i) as follows;

=> 30 = a + (3 - 1)d

=> 30 = a + 2d

=> a = 30 - 2d          --------------------(iii)

Interpret the next statement

the sum of the first 10 terms of the series is 450. i.e

n = 10

Sₙ = S₁₀ = 450

Substitute these values into equation (ii) as follows:

=> 450 =  [tex]\frac{10}{2}[/tex](2a + (10-1)d)    

=> 450 =  5(2a + 9d)    

Divide both sides by 5

=> 90 =  2a + 9d       ---------------------------(iv)

Solve equations (iii) and (iv) simultaneously

Substitute the value of a in equation(iii) into equation (iv) and solve as follows

=> 90 = 2(30 - 2d) + 9d

=> 90 = 60 - 4d + 9d

=> 90 = 60 + 5d

=> 5d = 90 - 60

=> 5d = 30

Divide both sides by 5

=> d = 6

Therefore, the common difference, d is 6

(ii) Given

Sₙ > 350

From equation (ii), this implies that,

[tex]\frac{n}{2}[/tex](2a + (n-1)d) > 350           -------------------(v)

Let's get the value of the first term 'a'

Substitute the value of d = 6 into equation (iii) and solve as follows

=> a = 30 - 2(6)

=> a = 30 - 12

=> a = 18

Substitute the values of a and d into inequality (v) and solve

[tex]\frac{n}{2}[/tex](2(18) + (n-1)6) > 350

[tex]\frac{n}{2}[/tex](36 + 6n - 6) > 350

[tex]\frac{n}{2}[/tex](36 - 6 + 6n) > 350

[tex]\frac{n}{2}[/tex](30 + 6n) > 350

Multiply both sides by 2

n(30 + 6n) > 700

30n + 6n² > 700

6n² + 30n > 700

Divide through by 2

3n² + 15n > 350

3n(n+5) > 350

Solve the quadratic inequality

Since n specifies the number of terms to be added, it will always be a whole number. Therefore, using trial and error method, the values of n that will satisfy the above inequality will be values greater than 8. i.e

n > 8

In other words, for all values of n greater than 8, the above inequality will be satisfied.

Answer: 0.7 i believe not sure

Step-by-step explanation:

Answer:

$45,000

Step-by-step explanation:

Income = percentage of income she receives x income

50% x 90,000

0.5 x 90,000 = 45,000

Answer:

minimum 56

Median (Q2) 65

Lower Quartile (Q1) 60

Upper Quattile (Q3) 67

Maximum 75

Step-by-step explanation:

If you notice, there are 5 distinguished points of data, and I used all the points for each thing you asked for. You just have to recognize the minimum and maximum are the largest and smallest of all the data, and there is clearly nothing outside of the range of 56-75. then Q1, Q2, and Q3 are on the box itself. The median, just like with numbers, will always be the middle line. It is not directly in the center because there are more people in the 65-75 value range than the 56-65 value range.

hope this helps!

Answer:

minimum 56

Median (Q2) 65

Lower Quartile (Q1) 60

Upper Quattile (Q3) 67

Maximum 75

Step-by-step explanation:

i go to k12

Answer:

area=pie *(r)^2

=3.14*(12in.)^2

=3.14*144in.^2

=452.16in.^2

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

93/35= 2.657

100/2.657= 37.636

round up

Answer:

A. 24

Step-by-step explanation:

Angles in a triangle add up to equal 180

Thus, 66 + 90 + x = 180

66 + 90 = 156

156 + x = 180

180 - 156 = 24

Hence, x = 24

Note: There is a right angle indicated by the square inside of the triangle. A right angle has a measure of 90 degrees. So Just in case you were wondering that's where the 90 cam from

We will see that the percentage of the 60 children who choose orange is 25%.

In this case, the 60 children are the 100%.

We want to find which percentage 15 (number of kids that like orange) represents.

Then we can write:

15 = x

60 = 100%

x = (15/60)*100% = 25%

So we conclude that 25% of the children choose orange.

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Answer:

B. False

Step-by-step explanation:

broooooooooo why would it just be a mat nah it can be more smh

Answer:

b yes the full field of veiw sta point a is

Answer:

Step-by-step explanation:

Pretty sure is convergence lines

Hi, those are Horizon lines.

If you want to be specific, you can say eye-level horizon lines. Horizon lines show the depth in an art piece. I hope this helps.

Answer:

y = 4.5x + 8.5

Step-by-step explanation:

this is true

Answer:

D,  [tex]10i\sqrt{2}[/tex]

Step-by-step explanation:

Separate -1, 2, and 100 from each other inside the radical. You can take out -1 as i, and 100 as 10. You now have 10i on the outside of the radical and 2 on the inside. Hope this helps.

Answer:

the answer is D.

!!!!!!!!!!!!!!!!!!!!!!!!

Answer:

21.9 ft²

Step-by-step explanation:

Hello!

To find the area of this figure, we must find the area of the 6 x 6 square and subtract the area of a semi-circle with a diameter of 6.

Area square:

Area semi-circe:

Area shape:

The units are ft², so the answer is 21.9 ft²

Answer:

21 cloves of garlic

Step-by-step explanation:

50 ÷ 7 = 7.14

7.14 x 3 = 21.42

Then rounded to the nearest whole number it would be 21.

Answer:

[tex]Y-\frac{\pi}{2} =\frac{\pi}{2} (x+\sqrt{\frac{1}{7}})[/tex]

Step-by-step explanation:

The equation of the curve is

[tex]Y = sin^{-1}(7x)[/tex]

To find the equation of tangent we need to differentiate this equation w.r.t x

So, differentiating we get

[tex]Y'=\frac{7}{\sqrt{1-49x^2} }[/tex]

This would give the slope of the tangent line at any given point of which x coordinate is known. In the present case it is  [tex]x = \sqrt{\frac{1}{7} }[/tex]

Then slope would accordingly be

[tex]Y'=\frac{7}{\sqrt{1-49/49} }[/tex]

= ∞

For, [tex]x = \sqrt{\frac{1}{7} }[/tex], [tex]Y = sin^{-1}(7/7)= \pi/2[/tex]

Equation of tangent line, in the point slope form, would be [tex]Y-\frac{\pi}{2} =\frac{\pi}{2} (x+\sqrt{\frac{1}{7}})[/tex]

Answer:

77.975degrees

Step-by-step explanation:

Given the following;

Length of the ladder = 12foot (Hypotenuse)

Distance from the wall to the base of the ladder = 2.5feet (adjacent)

Using the SOH CAH TOA identity;

Cos theta = adjacent/Hypotenuse

Cos theta = 2.5/12

Cos theta = 0.2083

theta = arccos (0.2083)

theta = 77.975

Hence the angle that the ladder makes with the ground is 77.975degrees

Answer:

2-20 3-28

Step-by-step explanation:

0-4

1-12

2-20

3-28

When age is 2 then the new squares appeared = 20

When age is 3 then the new squares appeared = 28

"It is a repeated arrangement of numbers, shapes, colors and so on. "

For given question,

Charlotte the turtle was born with 4 squares on her shell, as in the first picture below.

When she was 1 year old, 12 new squares appeared around the old squares, as in the second picture below.

Each year, a new group of squares appeared around the old squares.

We find the same pattern to find the new squares appeared when she is 2 and 3 years old.

When she is 2 years old then the new squares appeared around the old squares, as shown below.

There are 20 new squares appeared around the old squares.

When she is 3 years old then the new squares appeared around the old squares, as shown below.

There are 28 new squares appeared around the old squares.

Therefore, when age is 2 then the new squares appeared = 20

when age is 3 then the new squares appeared = 28

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Answer:

76 degrees

Step-by-step explanation:

We know that supplementary angles equal 180 degrees. So, set up the equations:

[tex]180=(x+15)+(x-13)\\[/tex]

[tex]180=(2x+2)\\[/tex]

[tex]178=2x[/tex]

[tex]x=89\\[/tex]

Then, you just plug 89 back into ZB, and simplify:

[tex](89-13)\\[/tex]

[tex]=76[/tex]

So, the measurement of angle ZB is 76 degrees.