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madam [21]
3 years ago
9

DOES SOMEONE KNOW HOW TO DO THIS???????????????????????????????????????????

Mathematics
1 answer:
Levart [38]3 years ago
7 0

Answer:

1st one is 9x-2

2nd is -3x -2

3rd one (put 1 instead of x in the given functions then calculate values and multiple )6

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Denise is constructing a square. she has already used her straightedge and compass to construct the circle, lines, and arcs show
Novosadov [1.4K]
What should denise do for her next step?

Answer: Out of all the options presented above the one that best represents the next step that denise should take after already using her straightedge and compass to construct the circle, lines, and arcs is to use the straightedge to draw line ac, line ad, line bc, and line bd. use the compass and straightedge to construct the bisector of ∠cpb∠cpb. Please see the attachment as reference to how it should look like once it is completed.

I hope it helps, Regards.
3 0
3 years ago
Which expression represents the number 2i4−5i3+3i2+−81‾‾‾‾√ rewritten in a+bi form?
vichka [17]

Answer:

The expression -1+14i represents  the number 2i^4-5i^3+3i^2+\sqrt{-81} rewritten in a+bi form.

Step-by-step explanation:

The value of i is i=\sqrt{-1}[tex] or [tex]i^{2}=-1[\tex].Now [tex]i^{4} in term of i^{2}[\tex] can be written as, [tex]i^{4}=i^{2}\times i^{2}

Substituting the value,

i^{4}=\left(-1\right)\times \left(-1\right)

Product of two negative numbers is always positive.

\therefore i^{4}=1

Now i^{3} in term of i^{2}[\tex] can be written as, [tex]i^{3}=i^{2}\times i

Substituting the value,

i^{3}=\left(-1\right)\times i

Product of one negative  and one positive numbers is always negative.

\therefore i^{3}=-i

Now \sqrt{-81} can be written as follows,

\sqrt{-81}=\sqrt{\left(81\right)\times\left(-1\right)}

Applying radical multiplication rule,

\sqrt{ab}={\sqrt{a}}\sqrt{b}

\sqrt{\left(81\right)\times\left(-1\right)}={\sqrt{81}}\sqrt{-1}

Now, \sqrt{\left(81\right)=9 and \sqrt{-1}}=i

\therefore \sqrt{\left(81\right)\times\left(-1\right)}=9i

Now substituting the above values in given expression,

2i^4-5i^3+3i^2+\sqrt{-81}=2\left(1\right)-5\left(-i\right)+3\left(-1\right)+9i

Simplifying,

2+5i-3+9i

Collecting similar terms,

2-3+5i+9i

Combining similar terms,

-1+14i

The above expression is in the form of a+bi which is the required expression.

Hence, option number 4 is correct.

5 0
3 years ago
A recipe calls for 3.75 cups of flour. What is this amount as a mixed number in simples form?
ddd [48]

0.75 is 3/4 and 3 is 3 so the mixed number is 3 3/4

8 0
3 years ago
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Examine the power.
son4ous [18]
La respuesta es el número 4
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Mike has $72 and he needs to buy some apples. Which of these equations would represent mike's situation of the apples cost $0.60
Alexxandr [17]

Answer:120 apples

Step-by-step explanation:

72/.60=120

8 0
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