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bezimeni [28]
2 years ago
9

Multiply the following expressions 81x5y6 × (-1x2y)​

Mathematics
1 answer:
Gnom [1K]2 years ago
5 0
Answer: -4860y^2

Solution:
81 x (5y x 6) x (-2y)
-81 x 5y x 6 x 2y
= -4860y^2
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X= a) 50 b) 100 c) 25
Molodets [167]

Answer:

x=a)50 so that would be the answer

would be e correct anwser meep meep

Step-by-step explanation:

3 0
3 years ago
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A hovercraft takes off from a platform. Its height (in meters), xx seconds after takeoff, is modeled by: h(x)=-2x^2+20x+48h(x)=?
tangare [24]

Answer: 5 seconds

<u>Step-by-step explanation:</u>

Maximum height is the y-value of the vertex. The number of seconds at maximum height is the x-value (aka axis of symmetry).

h(x) = -2x² + 20x + 48

      a=-2    b=20   c=48

Axis of symmetry: x = \frac{-b}{2a}

                                 = \frac{-20}{2(-2)}

                                 = \frac{-20}{-4}

                                 = 5

     

8 0
3 years ago
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21% as a percent as a fraction in simplest form and as a decimal
vovikov84 [41]
.21 is decimal form, 21/100 is the fraction in simplest form.
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3 years ago
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5 more then 3 times a number is 26 what is the number​
a_sh-v [17]
Let x equal a number
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3 0
2 years ago
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What is the answer for -3-(a-2)=7a+15
ale4655 [162]

Answer:

-5.25

Step-by-step explanation:

-3(-a+2)=7a+15

=>3a-6=7a+15

=>-15-6=7a-3a

=>-21=4a

=>a=-21/4=-5.25

hope this helps please mark as brainliest:)

7 0
3 years ago
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