2 years ago

Use the power rule and the power of a product rule to simplify the following expression.

Mathematics

1 answer:

daser333 [38]2 years ago

7 0

Answer:

the answer to the question is 81b^28

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Using four different numerators, write an equation in which four fractions, when added, have a sum of 1.

valentinak56 [21]

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1/2 + 1/4 + 1/12 + 8333/10000

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2 years ago

Find the vertex, zero(s), and y-intercept of the graph of y = 2x2 + 8x – 90. A. Vertex: (–2,–98); zeros: (–5,0), (9,0) y-interce

expeople1 [14]

Answer:

vertex is (-2,-98)

zeros are (5,0) (-9,0)

y-intercept is (0,-90)

Step-by-step explanation:

we are given

$y=2x^2+8x-90$

Vertex:

we can use vertex formula

$y=ax^2+bx+c$

$x=-\frac{b}{2a}$

we can compare and find a,b and c

a=2 , b=8 and c=-90

so, we can plug it in formula

$x=-\frac{8}{2\times 2}$

$x=-2$

now, we can find y-value

$y=2(-2)^2+8(-2)-90$

$y=-98$

so, vertex is (-2,-98)

zeros:

we can set y=0

and then we can solve for x

$y=2x^2+8x-90=0$

we can factor it

$2(x-5)(x+9)=0$

$x=5,x=-9$

zeros are

(5,0) (-9,0)

y-intercept:

we can plug x=0 and find y

$y=2(0)^2+8(0)-90$

$y=-90$

So, y-intercept is (0,-90)

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Please answer correctly! I need this to be correct otherwise I will fail the semester!

Yuri [45]

Answer:

i=35

Step-by-step explanation:

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The annual salaries of all employees at a financial company are normally distributed with a mean= $34,000 and a standard deviati

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The question ask the z score of the company having a mean of 34000 and standard deviation of 4000 and the answer would be -1.5. I hope you are satisfied with my answer and feel free to ask for more if you have further question and clarifications

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a book store is having a sale. all hardback books are 20% off l, and all paperbacks are 10% off. suppose you buy four paperbacks

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# of books = 4 ; original cost = 4*9=36; savings = 0.10*36= 3.60

# of books = 2 ;original cost = 2*20=40; savings = 0.20*40= 8.00


Percent savings:
original total cost=$76
Total savings = $11.60
Percent savings: 11.60/76 = 0.1526..= 15.26%

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