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3 years ago

My brain is gone for the day, so what comes first when finding points on a graph, vertical, or horizontal?

Mathematics

1 answer:

exis [7]3 years ago

8 0

Just remember it's along the corridor and up the stairs so horizontal comes first

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A card is selected at random from a standard deck of 52 cards find the probability of choosing a spade or a 8card

Nina [5.8K]

Answer: 8 out of 52

Step-by-step explanation: there are 52 cards and you are trying to figure out out 52 which one out the 52 would be 8 or a spade there are 4 8 cards and 4 spade cards the answer would be 8 out of 52 Hope this Helps You!

4 0

3 years ago

TIMED QUESTION Which are the roots of the quadratic function f(b) = b2 – 75? Select TWO options.

Setler [38]

Answer:

$b=5\sqrt{3}$ (b = 5 StartRoot 3 EndRoot)

and

$b=-5\sqrt{3}$ (b = Negative 5 StartRoot 3 EndRoot)

Step-by-step explanation:

we have

$f(b)=b^{2}-75$

we know that

The roots of the quadratic function are the values of x when the value of the function is equal to zero

For f(b)=0

$b^{2}-75=0$

Solve for b

Adds 75 both sides

$b^{2}=75$

take square root both sides

$b=(+/-)\sqrt{75}$

Simplify

$b=(+/-)5\sqrt{3}$

therefore

$b=5\sqrt{3}$ (b = 5 StartRoot 3 EndRoot)

and

$b=-5\sqrt{3}$ (b = Negative 5 StartRoot 3 EndRoot)

6 0

3 years ago

Read 2 more answers

Jakes family was on vacation for two weeks and five days. Seth’s family was on vacation for three weeks and two days.How many fe

n200080 [17]

$2 \times 7 = 14 \\ + 5 = 19 \\ \\ 3 \times 7 = 21 \\ + 2 = 23 \\ \\ 23 - 19 = 4$

7 0

3 years ago

29 les the product of 3 and x

yanalaym [24]

Answer:

Step-by-step explanation:

3 0

3 years ago

A test consists of 10 true or false questions. To pass the test a student must answer at least eight questions correctly. If the

forsale [732]

<h3>The probability of student passing the quiz with at least 50% of the questions correct is 0.05457.</h3>

Step-by-step explanation:

Here, the total number of T/F question = 10

The minimum answers needed correctly answered = 8

So, student needs to answer at least 8 questions correctly.

Here, the possibility of answering a question correctly = $(\frac{1}{2})$ = p = 0.5

Also, the possibility of answering a question wrong = $(\frac{1}{2})$ = q = 0.5

Now, to pass he needs to answer 8 or more ( 8 , 9 or 10) answers correctly.

P(answering 8 correct answer) = $^{10}C_8(p)^8(q)^2 = ^{10}C_8(0.5)^8(0.5)^2 = 0.0439$

P(answering 9 correct answer) = $^{10}C_9(p)^9(q)^1 = ^{10}C_9(0.5)^9(0.5)^1 = 0.0097$

P(answering 10 correct answer) = $^{10}C_{10}(p)^{10}(q)^0 = ^{10}C_{10}(0.5)^{10}(0.5)^0 = 0.00097$

So, the total Probability = P(8) + P(9) + P(10)

= (0.0439) + (0.0097) + (0.00097)

= 0.05457

Hence, the probability that the student passes the quiz with at least 8 of the questions correct is 0.05457.

6 0

4 years ago