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mote1985 [20]
3 years ago
6

PLEASE HELP WITH THIS QUESTION!! DUE BY 1PM! wILL RATE YOU GOOD!! THANK YOU!!

Mathematics
1 answer:
kupik [55]3 years ago
8 0
Find a_{1} by plugging in 1 into n:
a_{1} = 98-2(1)=96

Find a_{11 by plugging in 11 into n:
a_{11} = 98-2(11)
a_{1} =98-22=76

Now to find the sum your formula is:
S_{n} = \frac{n}{2} ( a_{1} + a_{n})
n = 11,   a_{1} = 96 ,  a_{11} =76

Now plug that into the formula
S_{11} = \frac{11}{2} (96+76)
S_{11} = 5.5(172)=946

Hope that helps
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Factorise fully 72-2y^2
KiRa [710]

Answer: 2(y + 6)(-y + 6)

Step-by-step explanation: Factor 72 - 2y^2

                                             -2y^2 + 72

                                             = 2(y + 6)(-y + 6)

7 0
3 years ago
Read 2 more answers
Can you please help me solve this?
oee [108]
So, i would use the add the two equation method, so add those to get:
2e=-4
e=-2
then plug in e to get d, so d+-2=1
d=3
plug into the other one to make sure
-3+-2=-5
so it would be (3,-2)
8 0
3 years ago
Write one problem using a dollar amount of $420 and a percent of 40%. Provide a solution to your problem. Please help I'm desper
luda_lava [24]
You could do :
Johnny was financing a limited editions Xbox One S. The price was $420 and he put down 40%. How much is left to be financed?
dp=420(40/100)=16800/100=168
then you would subtract 420-168 which would give you 252
;) good luck !!
3 0
3 years ago
look at me Worship me on your knees can't you see me pennies are filled with big bleep energy I make money and I get bleep 2 ​
Anestetic [448]

Answer:

tiktok

Step-by-step explanation:

7 0
3 years ago
Solve the system of equation
kherson [118]

Answer:

The answer to your question is:

x = -10; y = 8

Step-by-step explanation:

Solve equations by elimination method                          

                                              2x + 3y = 4    (1)

                                               x + 2y = 6    (2)

Multiply 2 by -2

                                              2x + 3y = 4

                                             -2x - 4y = -12

                                                    -y = -8

                                                     y = 8

Substitute y in (2)

                                             x + 2(8) = 6

                                            x = 6 - 16

                                            x = -10

8 0
3 years ago
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