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3 years ago

I need heelp plz can anyone heelp me

Mathematics

2 answers:

DedPeter [7]3 years ago

6 0

Answer:

I think it's C

Step-by-step explanation:

I think it C because if Mr. Jones's has to take 1.04 you round and get 1 I believe

fgiga [73]3 years ago

4 0

Answer:

Step-by-step explanation:

Based on the information, Mr. Jones takes 1.04 tablets a day. When rounded, it equals 1. So therefore, the answer is C.

Rounding numbers is when a number has a decimal. If the decimal in front has a value of 5 or greater, you round up. If not, you round down, when it is 4 or less. It helps to decrease confusion when results come out in decimal form. So, rounding is a good technique in mathematics.

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Using a compass, construct an accurate copy of triangle DEF. Check that EF = 4.6 cm.

MaRussiya [10]

Step-by-step explanation:

construct 90° then measure 4.6 cm and draw a line from F to D

5 0

2 years ago

May someone please help me with this :)

AlladinOne [14]

Answer: 16 pi or ≈50.27

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V = pi r ^2 h
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8 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

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2 years ago

Find vertex for y=x^2 - 10x + 2

NARA [144]

The vertex would be (5,-23)

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3 years ago

Find the equation of the line that is parallel to the given line and passes through the given point y = -3x + 5 (1,5)

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