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Tpy6a [65]
2 years ago
11

Find the sum or difference. (5a – 3b2 – a) + (b – 5 + 8a2)

Mathematics
1 answer:
kupik [55]2 years ago
8 0

Answer:

C

Step-by-step explanation:

5a - 3b^2 - a + b - 5 + 8a^2

8a^2 - 3b^2 + 4a + b - 5

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QUESTION 4
vesna_86 [32]

Answer:

f(3) =-8

Step-by-step explanation:

Given

f(x) = 2x + 5; x

f(x) =-3x + 1; x >1

Required

Determine f(3)

f(3) implies that x = 3.

We make use of

f(x) =-3x + 1

Because x >1 (i.e. 3 > 1)

Substitute 3 for x in f(x) =-3x + 1

f(3) =-3*3 + 1

f(3) =-9 + 1

f(3) =-8

5 0
2 years ago
Need help ASAP
horrorfan [7]

Answer:

39 cm

Step-by-step explanation:

using the x component go find 12 cm width and follow the line up until it intersects the graph. then follow that point left to estimate the height at that point to estimate 37.5 but more accurately you can use the given equation y=3.25x and plug in your x of 12 to get y=39

6 0
2 years ago
Find the common ratio of the geometric sequence:
STatiana [176]

Answer:

1/2 must be answer... t2/t1 in geometric

6 0
3 years ago
What measure of center should Mr. Malloy use for Amo and for Javier for the best possible grade?
9966 [12]
The answer to this question is the first item in the choices which is "The teacher should use the mean for both Amo and Javier" when computing and comparing their grades. The mean is the average grade while the median is the center of the grade. It would be wrong to apply median in computing their grades and it would be also wrong when the use two different methods when computing and comparing their grades.  
7 0
3 years ago
Read 2 more answers
Since opening night, attendance at Play A has increased steadily, while attendance at Play B first rose and then fell. Equations
Y_Kistochka [10]

Answer:

On 5th day and 13th day Attendance was equal for both plays and it was

231 for each .

Step-by-step explanation:

In order to find same attendance ,we need  plug both equation equal

         -x^2+26x+126 = 8x+191

        -x^2+26x-8x+126-191 = 0

        -x^2 +18x-65 =0

      multiplying both sides by -1 ,we get

      x^2 -18x+ 65 =0

        (x-5) (x-13) =0

         x =5 and x =13

On 5th day and 13th  day attendance was same.

And attendance can be obtained by plugging x =5 in either of equation

 y = 8(5)+191

   = 40 +191

  = 231

 

8 0
3 years ago
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