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babymother [125]
3 years ago
14

y=2(x+3)^2-2 Vertex: y-intercept: x- intercept(s): Axis of symmetry: Domain: Range: -- Please explain your work! and if you can,

add a graph, but if not I understand! Thank you!
Mathematics
1 answer:
Lina20 [59]3 years ago
5 0

Answer:

54

Step-by-step explanation:

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Need Help Please! <br> attachment below
Umnica [9.8K]
The answer is B. You add all the numbers together and divide by the amount of numbers you have to find the mean. The missing height is 62 because 54+57+59+63+66+68+70+58=563
563/9 (amount of numbers you have including the missing height) = 63
5 0
3 years ago
How many complex zeros does the polynomial function have?<br> f(x)=−3x^6−2x^4+5x+6
REY [17]

one way would be to factor

I can't factor it so we will have to use Descartes' Rule of Signs which is helpful for finding how many real roots you have


it goes like this:

for a polynomial with real coefients, consider f(x)=-3x^6-2x^4+5x+6.

after arranging the terms in decending order in terms of degree, count how many times the signs of the coeffients change direction and minus 2 from that number until you get to 1 or 0. that will be the number of even roots the function can have

We have (-, -, +, +). the signs changed 1 times, so it has 1 real positive root


to get the negative roots, we evaluate f(-x) and see how many times the root changes

f(-x)=-3x^6-2x^4-5x+6

signs are (-, -, -, +). there was 1 change in sign

so the function has 1 real negative root



a total of 2 real roots


a function of degree n can have at most, n roots


our function is degree 6 so it has 6 roots

if 2 are real, then the others must be complex

6-2=4 so there are 4 complex roots


you can also show that there are only 2 real roots by using a graphing utility to see that there are only 2 real roots

7 0
3 years ago
A plane travels 990 miles to London and back. the trip there was with the wind.it took 10 hours.the trip back was into the wind.
tino4ka555 [31]

Answer:

C.

Step-by-step explanation:

pretty positive! :) hope it helps you

7 0
3 years ago
Read 2 more answers
Labor rate = $7.50 per hour Labor time = 6.5 hours Retail price of parts = $0 Total job cost = $82.00 Overhead rate?
Ulleksa [173]
Total cost job=
Retail price of parts+labor cost+manufacturing overhead

Total cost job 82

Retail price of parts 0

Labor cost=7.5×6.5=48.75

Manufacturing overhead ?

82=0+48.75+?

?=82−48.75

?=33.25

Manufacturing overhead is 33.25

Now find manufacturing overhead rate from the cost of labor
33.25÷48.75=0.682×100=68.2%

The answer 68.2%




4 0
3 years ago
MULTIPLE CHOICE GEOMOTRY QUESTIOON
rosijanka [135]

Answer: D

Step-by-step explanation: Im vv sure, is this a test?

7 0
3 years ago
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