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Vladimir [108]
3 years ago
12

What is the value of the expression below when c = 5 and d = 4? 6c2 – 5d + 8

Mathematics
1 answer:
xeze [42]3 years ago
3 0

Answer:

48

Step-by-step explanation:

given that c = 5 and d = 4?

so insert the value of c and d  equals 5 and 4 respectively

6c2 – 5d + 8

6 (5) × 2 - 5 (4) + 8

30 × 2 - 20  + 8

60 - 20 + 8

40 + 8

48

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Determine if (-2,6) and (4,12) are solutions to the system of equations:
kykrilka [37]

Answer:

Both (-2,6) and (4,12) are solutions to the system.

Step-by-step explanation:

In order to determine whether the two given points represent solutions to our system of equations, we must "plug" thos points into both equations and check that the equality remains valid.

Step 1: Plug (-2,6) into y=x+8

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Step 2: Plug (-2,6) into 2y=x^2 + 8

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The solution verifies both equations. Therefore, (-2,6) is a solution to this system.

Now we must check if the second point is also valid.

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3 years ago
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Answer:

Step-by-step explanation:

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H0 =  

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P-value = ( u figure it out) u got it

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