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3 years ago

Which statement is not true? a.All nunbers are natural numbers.b.Fractions are rational numbers.c.Zero is an integer.

Mathematics

2 answers:

DiKsa [7]3 years ago

6 0

I believe that b.Fractions are rational numbers is not true

sorry if its wrong

AnnZ [28]3 years ago

5 0

Any fraction a/b is rational if and only if a and b are integers so idk the answer.. but it's jut a hint i guess

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The discriminant of a quadratic equation is equal to -8, which statement describes the roots?

Maslowich

Answer:

(a) There are two complex roots

Step-by-step explanation:

The discriminant of a quadratic function describes the nature of its roots:

negative: two complex roots
zero: one real root (multiplicity 2)
positive: two distinct real roots.

Your discriminant of -8 is negative, so it indicates ...

There are two complex roots

_____

Additional comment

We generally study polynomials with real coefficients. These will never have an odd number of complex roots. Their complex roots always come in conjugate pairs.

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2 years ago

A cylindrical container with a radius of 5 cm and a height of 14 cm is completely filled with liquid. Some of the liquid from th

Flura [38]

Answer:

The remaining liquid has a volume of 345.4 cm³.

Step-by-step explanation:

To solve this question we first need to calculate the volume of each container.

Cylindrical:

Volume = h*pi*r² = 14*3.14*(5)² = 1099 cm³

Cone:

Volume = (1/3)*h*pi*r² = (1/3)*20*3.14*(6)² = 753.6 cm³

Since the liquid from the cylinder was transfered to the cone until the latter was full, then what remains in the cylinder is it's original volume minus the cone volume. So we have:

remaining liquid = 1099 - 753.6 = 345.4 cm³

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3 years ago

The formula for converting degrees Celsius (C) to degrees Fahrenheit (F) is: F= 9C/5 + 32. Rearrange the formula so you could ch

pentagon [3]

Answer:

45F+800=C

Step-by-step explanation:

F+32=9C/5

5F+160=9C

45F+800=C

4 0

3 years ago

Need help with this please!!

Umnica [9.8K]

Answer:

1. A) -12, 3 B) -6, 9 C) 0, -6 D) -15, -6

2. L) 1, -4 M) 6, 4 N) 7, -2

3. P) 4, 12 Q) 12, 12 R) 12, 8 S) 4, 8

4. W) 3, -6 X) 9, -3 Y) 15, -6 Z) 9, -9

5. M) -14, -8 N) -8, -6 O) -6, -12 P) -12, -14

6. D) -1, 3 E) 2, 2 F) 2, 1 G) -1, 0

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3 years ago

Probability 1/4 3/4 1/2 5/8??

Sindrei [870]

Answer:

1/2

Step-by-step explanation:

There are exactly 6 shaded regions; for every shaded region, there is also an unshaded region -- making this value 6 as well.

There are 12 possible outcomes, and 6 events

To determine probability, we divide the number of events by the number of possible outcomes, like this:

$6/12=1/2\\1/2=.50\\$

.50 = 50% or 1/2 chance.

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4 0

4 years ago