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Vikki [24]
3 years ago
5

Which of the following equations is a constant function? x = 5 y = x y = 5

Mathematics
1 answer:
GalinKa [24]3 years ago
5 0

Answer:

Y=X

Step-by-step explanation:

You might be interested in
P = a + b +c for b what the answer math ​
Elena L [17]

Answer:

p - a - c = b

Step-by-step explanation:

p = a + b + c

subtract a and b from both sides to isolate c

p - a - c = a - a + b

+ c - c

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
Can someone help me answer this pls.
Natali5045456 [20]
Y=-12

explanation multiply x by -3 to get y
4 0
2 years ago
Read 2 more answers
How do I solve this problem?
geniusboy [140]

Answer:

i think is 7/12

because if 4/7 chose pasta,1/5 chose pizza then we add 7+5=12 then we sudstract 12-4-1 = 7.

hope that helps

4 0
2 years ago
Solve the inequality 3k > 5k+12
Natali5045456 [20]

Alright, let's solve this problem! :)

<u>First we need to subtract 5k from both sides.</u>

3k−5k>12

<u>Then we simplify 3k - 5k to -2k.</u>

-2k > 12

<u>Now we divide both sides by -2.</u>

k < -12/2

<u>Now we simplify 12/2 to 6.  </u>

k < -6

✔️Done!

Have an amazing day!

4 0
3 years ago
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