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3 years ago

14

The discriminant of the function is_

2 answers:

Bingel [31]3 years ago

6 0

Negative is the answer

QveST [7]3 years ago

4 0

Positive
The discrimination of a function determines what type of answers you will get.
If the discriminant is greater than 0(positive) than you will get 2 real numbers(2 x-intercepts).
If the discriminant is 0 than you will get 1 real number(1 x-intercept).
If the discriminant is less than 0(negative) than you will get no real numbers(0 x-intercept) and 2 imaginary/complex numbers.

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You are dealt two cards successively (without replacement) from a shuffled deck of 52 playing cards. Find the probability that b

Ivahew [28]

Answer:

$\frac{25}{102}$

Step-by-step explanation:

"AND" means Multiplication, and

"OR" means Addition (in probability)

We want Both cards to be black, that means 1st card black "AND" 2nd card black. So we find individual probabilities and MULTIPLY.

There are 26 black cards from 52 total cards in a normal deck.

P(1st card black) = 26/52 = 1/2

Now, since we HAVEN'T REPLACED, there are now 25 black cards out of 51 total cards. So

P(2nd card black) = 25/51

Now we multiply:

P(both black) = $\frac{1}{2}*\frac{25}{51}=\frac{25}{102}$

6 0

4 years ago

Line segment XY is tangent to circle Z at point U.

USPshnik [31]

Answer:

$m\angle YUV=42\°$

Step-by-step explanation:

The picture of the question in the attached figure

we have that

$arc\ UV=84\°$ -----> given problem

so

$m\angle UZV=84\°$ ------> by central angle

we know that

The triangle UZV is an isosceles triangle

because

ZU=ZV=radius

so

$m\angle ZUV=m\angle ZVU$ -----> bases angle of the isosceles triangle

Remember that

The sum of the internal angles of any triangle must be equal to 180 degrees

so

$m\angle ZUV+m\angle ZVU+m\angle UZV=180\°\\2m\angle ZUV+m\angle UZV=180\°$

substitute and solve for m<ZUV

$2m\angle ZUV+84\°=180\°\\m\angle ZUV=(180\°-84\°)/2=48\°$

Find the measure of angle YUV

we have that

$m\angle ZUV+m\angle YUV=90\°$ ------> by complementary angles

substitute the given value and solve for m<YUV

$48\°+m\angle YUV=90\°\\m\angle YUV=90\°-48\°=42\°$

3 0

3 years ago

Read 2 more answers

In Alice, how many directions can an object move

Makovka662 [10]

Im pretty sure its six

8 0

3 years ago

HELP ME ASAP!!!!!!!<br><br> Happy Easter<br><br> see pic attached<br><br> good luck

DaniilM [7]

Answer:

D

Step-by-step explanation:

m + 9 can be +ve or -ve or 0.

m can be any number, even lesser than -9 to make it +ve. [-10+9 = -1 = -ve no.]

Or, maybe greater than -9 to make m+9 +ve. [-8 + 9 = 1 = +ve no.]

Or, maybe -9 only so that m+9 is 0

[ -9 + 9 = 0 ]

It can be -ve, +ve and 0 as well.

8 0

3 years ago

Read 2 more answers

Find the sum of the following geometric sequences. d) 3 terms a= 16 r=3/4

kodGreya [7K]

Answer:

S₃ = 37

Step-by-step explanation:

given a₁ = 16 and r = $\frac{3}{4}$ , then

a₂ = a₁ × $\frac{3}{4}$ = 16 × $\frac{3}{4}$ = 12

a₃ = a₂ × $\frac{3}{4}$ = 12 × $\frac{3}{4}$ = 9

then

S₃ = a₁ + a₂ + a₃ = 16 + 12 + 9 = 37

7 0

2 years ago