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3 years ago

24 pnts ⁉️‼️‼️ PIC ATTACHED HELPPPP PLZ NEED DONE BY DAY AFTER TMR ‼️‼️⁉️

Mathematics

1 answer:

notsponge [240]3 years ago

4 0

Answer:

Step-by-step explanation:

Answer to 2:

a) 26 is upper Quartile

b) Inter-Quartile Range = Upper Quartile - Lower Quartile = 26 - 14.5 = 11.5

whereas cost of CDs lie between 7 to 29 Dollars

c) Median is 2nd Quartile which is 20.5

d) 29

e) 5 CDs

f) 2 CDs

Answer to 3:

a) 2nd Quartile is the median which is 75

b) First Quartile is 70

c) The statement "75 represents the mean score" is not true

d) 85 is the 3rd Quartile

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PLEASE ANSWER THIS ASAP GOD LOVES YOU

MaRussiya [10]

Answer:

The area of the cross section would be 160in squared

Step-by-step explanation:

They are asking for the area of the cross section, the rectangle that is splitting the prism in half. Area=heightxwidth. So, you would just multiply 10x16 to get your answer, which would be 160.

5 0

3 years ago

(7 + 7i)(2 − 2i)

Ostrovityanka [42]

The complex number -7i into trigonometric form is 7 (cos (90) + sin (90) i) and 3 + 3i in trigonometric form is 4.2426 (cos (45) + sin (45) i)

<h3>What is a complex number?</h3>

It is defined as the number which can be written as x+iy where x is the real number or real part of the complex number and y is the imaginary part of the complex number and i is the iota which is nothing but a square root of -1.

We have a complex number shown in the picture:

-7i(3 + 3i)

= -7i

In trigonometric form:

z = 7 (cos (90) + sin (90) i)

= 3 + 3i

z = 4.2426 (cos (45) + sin (45) i)

$\rm 7\:\left(cos\:\left(90\right)\:+\:sin\:\left(90\right)\:i\right)4.2426\:\left(cos\:\left(45\right)\:+\:sin\:\left(45\right)\:i\right)$

$\rm =7\left(\cos \left(\dfrac{\pi }{2}\right)+\sin \left(\dfrac{\pi }{2}\right)i\right)\cdot \:4.2426\left(\cos \left(\dfrac{\pi }{4}\right)+\sin \left(\dfrac{\pi }{4}\right)i\right)$

$\rm 7\cdot \dfrac{21213}{5000}e^{i\dfrac{\pi }{2}}e^{i\dfrac{\pi }{4}}$

$\rm =\dfrac{148491\left(-1\right)^{\dfrac{3}{4}}}{5000}$

=21-21i

After converting into the exponential form:

$\rm =\dfrac{148491\left(-1\right)^{\dfrac{3}{4}}}{5000}$

From part (b) and part (c) both results are the same.

Thus, the complex number -7i into trigonometric form is 7 (cos (90) + sin (90) i) and 3 + 3i in trigonometric form is 4.2426 (cos (45) + sin (45) i)

Learn more about the complex number here:

brainly.com/question/10251853

#SPJ1

3 0

2 years ago

Order these numbers from least to greatest.<br> 2<br> 12/5<br> 2.47<br> square root of 3

Arturiano [62]

Answer:

square root, 2,12/5,2.47

Step-by-step explanation:

7 0

3 years ago

20. If a certain linear function f(x) is evaluated at 0, the answer is 4.

bija089 [108]

Answer:

y = (1/3)x + 4

Step-by-step explanation:

Two points on this line are (0, 4) and (3, 5).

As we move from the first point to the second, x increases by 3 and y increases by 1. Thus, the slope, m, of the line is m = rise / run = 1/3.

Use the slope-intercept equation: y = mx + b.

If we use the data from the point (0, 4), we get:

4 = (1/3)(0) + b, so that b = 4. The desired equation is y = (1/3)x + 4.

7 0

3 years ago

At the grocery store you buy snacks

zvonat [6]

Answer:

12+6x=$15.15 should be your answer :)

6 0

3 years ago