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kolezko [41]
3 years ago
11

Need help with this question

Mathematics
1 answer:
tatuchka [14]3 years ago
4 0
Z(x)=6x^3+19x^2-52x+15
(6*-5)^3+19*-5^2-52*-5+15
Z(x)= -17,700
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Samuel is x year old and
pogonyaev

Answer:

Samuel : x

wife : y

sum of their age : 2+ x : 10

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3 years ago
Pauline gets a 2% commission on her sales at her job. She sells $23,500 worth of products in May.
Illusion [34]
470 dollars . 2% Of 23,500
7 0
2 years ago
A blank CD can hold 70 minutes of music. So far you have burned 25 minutes of music onto the CD. You estimate that each song las
zaharov [31]

Answer:

The possible numbers of songs that you can burn onto the CD is 11.

Step-by-step explanation:

The total storage capacity of CD =  70 minutes

Storage already used = 25 minutes

Hence, The available storage =  Total available  storage -  Used Storage

= 70 minutes - 25  minutes = 45 minutes

Hence, the CD has 45 minutes storage left.

Now, each song takes up 4 minutes of storage.

⇒ \textrm{Total number of songs possible} =  \frac{\textrm{Total storage left}}{\textrm{Time taken by each song}}

= \frac{45 minutes}{4minutes }  = 11.25

⇒The number of songs possible = 11.25 ≈  11

Hence, the possible numbers of songs that you can burn onto the CD is 11.

4 0
3 years ago
(4x+7)^2=60 how to do extracting the square root?
4vir4ik [10]
(4x + 7)² = 60
(4x + 7)(4x + 7) = 60
(4x² + 28x + 28x + 49) = 60
4x² + 56x + 49 = 60
<u>                  -49   -49</u>
        4x² + 56x = 11
4x² + 56x - 11 = 11 - 11
4x² + 56x - 11 = 0
x = <u>-56 +/- √(56² - 4(4)(-11))</u>
                     2(4)
x = <u>-56 +/- √(3136 + 88)</u>
                     8
x = <u>-56 +/- √(3174)</u>
                 8
x = <u>-56 +/- 56.34</u>
               8
x = -7 +/- 7.0425
x = -7 + 7.70425       x = -7 - 7.70425
x = 0.70425              x = -14.70425
8 0
3 years ago
Which, if any, of A. (4, π/6), B. (−4, 7π/6), C. (4, 13π/6), are polar coordinates for the point given in Cartesian coordinates
alisha [4.7K]

Answer:

The polar coordinates of }\left(2,\:2\sqrt{3}\right) are \left(4,\:\frac{\pi }{3}\right).

Step-by-step explanation:

To convert Cartesian coordinates \:\left(x,\:y\right) to Polar coordinates \:\left(r,\:\theta \right) apply:

r=\sqrt{x^2+y^2}\quad \theta =\arctan \left(\frac{y}{x}\right)

x=2\\\\y=2\sqrt{3}

r=\sqrt{x^2+y^2}\\r=\sqrt{2^2+\left(2\sqrt{3}\right)^2}\\r=4

\theta =\arctan \left(\frac{y}{x}\right)\\\theta=\arctan \left(\frac{2\sqrt{3}}{2}\right)\\\theta=\frac{\pi }{3}

The polar coordinates of }\left(2,\:2\sqrt{3}\right) are \left(4,\:\frac{\pi }{3}\right).

7 0
3 years ago
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