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3 years ago

Can someone help me with this?

Mathematics

2 answers:

bazaltina [42]3 years ago

5 0

Answer:

I believe it would be 32: 28

Step-by-step explanation:

Multiply 16 and 14 by 2 and you would get

32:28.

Hope this helps you

Vedmedyk [2.9K]3 years ago

5 0

I would say the last one 24:21

i am soooo sorry if this is wrong tho :(

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Number 53

Solnce55 [7]

X-intercepts
f(x) = 0

4x² - 15x - 4 = 0

4x² - 16x + x - 4 = 0

4x(x - 4) + 1(x - 4) = 0

(x - 4)(4x + 1) = 0 ⇔ x - 4 = 0 or 4x + 1 = 0

x = 4 or 4x = - 1 ⇒ x = - 1/4

Answer: -1/4 and 4.

8 0

4 years ago

25 inches measurement yes or no

anyanavicka [17]

Answer:

yes

Step-by-step explanation:

6 0

3 years ago

Maurice averaged 79 points for 6 tests. How many more points must he score in the next text to raise his average to 80.

Lady bird [3.3K]

Answer:

86 is the score that Maurice must get to average his score to 80

8 0

2 years ago

A multiple-choice examination has 20 questions, each with five possible answers, only one of which is correct. Suppose that one

kari74 [83]

Answer:

The probability that the student answers at least seventeen questions correctly is $8.03\times 10^{-10}$ .

Step-by-step explanation:

Let the random variable X represent the number of correctly answered questions.

It is provided all the questions have five options with only one correct option.

Then the probability of selecting the correct option is,

$P(X)=p=\frac{1}{5}=0.20$

There are n = 20 question in the exam.

It is also provided that a student taking the examination answers each of the questions with an independent random guess.

Then the random variable can be modeled by the Binomial distribution with parameters n = 20 and p = 0.20.

The probability mass function of X is:

$P(X=x)={20\choose x}\ 0.20^{x}\ (1-0.20)^{20-x};\ x =0,1,2,3...$

Compute the probability that the student answers at least seventeen questions correctly as follows:

$P(X\geq 17)=P (X=17)+P (X=18)+P (X=19)+P (X=20)$

$=\sum\limits^{20}_{x=17}{{20\choose x}\ 0.20^{x}\ (1-0.20)^{20-x}}\\\\=0.00000000077+0.000000000032+0.00000000000084+0.000000000000042\\\\=0.000000000802882\\\\=8.03\times10^{-10}$

Thus, the probability that the student answers at least seventeen questions correctly is $8.03\times 10^{-10}$ .

4 0

4 years ago

F(x)=3x-2 h(x)=3x g(x)=x squared find the value of x when f(x)=19

Yuliya22 [10]

The value of f(19) in the given equation is 55.

<h3>What is the function of a linear equation?</h3>

The function of a linear equation illustrates a straight line graph and for a given set of input into the function, there is usually a specific output.

Given that:

f(x) = 3x - 2

We are to find the f(x) = 19.

So;

f(19) = 3(19) - 2

f(19) = 57 - 2

f(19) = 55

Learn more about the function of a linear equation here:

brainly.com/question/14323743

#SPJ1

4 0

2 years ago