All categories

3 years ago

Untitled Question * 11 X (8 – 5) + 9 X (2 + 7) Your answer Untitled Question *

Mathematics

2 answers:

dimulka [17.4K]3 years ago

7 0

8-5 = 3
2+7 =9
11(3) + 9(9)
33+81 = 114
Your Answer: 114

ki77a [65]3 years ago

3 0

81+33= 114 pretty sure it’s 114

You might be interested in

Stats. can someone help?

artcher [175]

Answer:

you should try picto math it very helpful!

Step-by-step explanation:

5 0

3 years ago

How do I solve for the answer?

Svetlanka [38]

The answer is (C) because from 1976 - 1978 there was a bit deflation

6 0

4 years ago

A history professor decides to give a 12-question true-false quiz. She wants to choose the passing grade such that the probabili

Katena32 [7]

Answer:

we can set the 9 as a benchmark to be the score for the passing grade so that probability of passing a student who guesses every question is less than 0.10

Step-by-step explanation:

From the given information;

Sample size n = 12

the probability of passing a student who guesses on every question is less than 0.10

In a alternative - response question (true/false) question, the probability of answering a question correctly = 1/2 = 0.5

Let X be the random variable that is represent number of correct answers out of 12.

The X $\sim$ BInomial (12, 0.5)

The probability mass function :

$P(X = k) = \dfrac{n!}{k!(n-k)!} \times p^k\times (1-p)^{n-k}$

$P(X = 12) = \dfrac{12!}{12!(12-12)!} \times 0.5^{12}\times (1-0.5)^{12-12}$

P(X = 12) = 2.44 × 10⁻⁴

$P(X = 11) = \dfrac{12!}{11!(12-11)!} \times 0.5^{11}\times (1-0.5)^{12-11}$

P(X =11 ) = 0.00293

$P(X = 10) = \dfrac{12!}{10!(12-10)!} \times 0.5^{10}\times (1-0.5)^{12-10}$

P(X = 10) = 0.01611

$P(X = 9) = \dfrac{12!}{9!(12-9)!} \times 0.5^{19}\times (1-0.5)^{12-9}$

P(X = 9) = 0.0537

$P(X = 8) = \dfrac{12!}{8!(12-8)!} \times 0.5^{8}\times (1-0.5)^{12-8}$

P(X = 8) = 0.12085

$P(X = 7) = \dfrac{12!}{7!(12-7)!} \times 0.5^{7}\times (1-0.5)^{12-7}$

P(X = 7) = 0.19335

.........

We can see that,a t P(X = 9) , the probability is 0.0537 which less than 0.10 but starting from P(X = 8) downwards the probability is more than 0.01

As such, we can set the 9 as a benchmark to be the score for the passing grade so that probability of passing a student who guesses every question is less than 0.10

5 0

3 years ago

<img src="https://tex.z-dn.net/?f=%5Csqrt%20%5Cfrac18" id="TexFormula1" title="\sqrt \frac18" alt="\sqrt \frac18" align="absmidd

morpeh [17]

Step-by-step explanation:

$\sqrt{1/8}$ = $\sqrt{1} /\sqrt{8}$

$\sqrt{8} =2\sqrt{2}$

$1/(2\sqrt{2} )$

if the denominator is a root then multiply itself by itself to get an integer

$1(2\sqrt{2} )/((2\sqrt{2})(2\sqrt{2} ))$

$\sqrt{2} /4$

Hope that helps :)

7 0

3 years ago

If f(x) = x2 – 25 and g(x) = x – 5, what is the domain of f/g(x)

olga2289 [7]

Domain of fg(x) is determined by the domain of g(x).g(x) has domain such that x is any real number.So domain fg(x) is x such that x is any real number.

6 0

3 years ago

Read 2 more answers