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Alexxx [7]
3 years ago
7

If y = -x² + 14x + 7 , then x = 10 is a counterexample for which conjecture?

Mathematics
1 answer:
Misha Larkins [42]3 years ago
6 0

Answer:

The correct answer is B

Step-by-step explanation:

If we plug in x=10 to the equation, we get y=47

Since y is positive, A is not an counterexample

Since y is a function of x, C is not an counterexample

Since the graph of y is a parabola, D is not an counterexample

Hope this helped and mark as brainliest!

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f(x)= -4x^2+10x-8 what is the value of the discriminant of f how many distinct real number zeros does f have
Mazyrski [523]

Answer:

Step-by-step explanation:

The function is f(x) = -4x²+10x-8

Let Δ be our the dicriminant

  • Δ= b²-4ac
  • b = 10
  • a = -4
  • c = -8
  • Δ = 10²-4*(-4)(-8)
  • Δ = 100-128
  • Δ = -28

The value of the discriminant is -28 and since it is negative this function has no real zeroes

4 0
3 years ago
What is 175-(64-32)+(8÷3)÷200​
andreev551 [17]

Answer:

10726 /75

Step-by-step explanation:

175−(64−32)+8/3/200

=175−32+8/3/200

=143+8/3/200

=143+1/75

=10726 /75

4 0
3 years ago
Find X in this picture. ​
sweet [91]

Answer:

x is in the top left of the triangle :)

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Order the numbers from greatest to<br> least.<br> 6.057, 6.125,6.38, 6.01, 6.03 , 6.57
Sergio039 [100]

Answer:

6.57, 6.38, 6.125, 6.057, 6.03, 6.01

7 0
2 years ago
A percent is a rate in which the first term is compared to ______
PIT_PIT [208]

Answer:

From what we know about percentages and unit rates, the correct options are:

1) 100

2) 1

What is a percent?

Suppose we have an amount A, this would be the 100%.

If we want to know how much a quantity B represents, compared to A, we have:

A = 100%

B = x

where x is a percentage, to find the value of x we compute:

x = (B/A)*100%

While there is a dependence on A, we actually are comparing the term with 100 (because A represents a 100%), so the correct option is A: 100

<u><em>PLS MARK ME AS THE BRAINLIST!!!</em></u>

6 0
2 years ago
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