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1 year ago

All you need is in the photo I DON'T WANT STEP BY STEP ANSWER FAST please fdsd

Mathematics

1 answer:

Brut [27]1 year ago

6 0

We have the following:

$\begin{gathered} x=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a} \\ a=5 \\ b=0 \\ c=-80 \end{gathered}$

replacing:

$\begin{gathered} x=\frac{-0\pm\sqrt[]{0^2-4\cdot5\cdot-80}}{2\cdot5}=\frac{\pm\sqrt[]{1600}}{10}=\frac{\pm40}{10}=\pm4 \\ x_1=4 \\ x_2=-4 \end{gathered}$

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Consider the following functions

TiliK225 [7]

Step-by-step explanation:

g(5)=3(5)-11

=15-11

f(g(5))=2(4)²+4(4)+10

=2(16)+16+10

=32+26

=58

5 0

3 years ago

A company surveyed 2,600 North American airline passengers and reported that approximately 75% said that they carry a smartphone

geniusboy [140]

The probability that exactly six out of ten carry a smartphone when travelling is; P(6) = 0.146

The missing part of the question is;

The probability distribution of x is the binomial distribution with n = 10 and p = 0.75.

Calculate P(6)

This is a binomial probability distribution problem that has a general formula as; P(x) = ⁿCₓ × pˣ × q⁽ⁿ ⁻ ˣ⁾

Where;

p is probability of success

q is probability of failure

n is number of experiments

In this question;

n = 10

p = 75% = 0.75

q = 1 - p

q = 1 - 0.75

q = 0.25

Since six passengers are randomly selected, then applying the formula earlier quoted, we have;

P(6) = ¹⁰C₆ × 0.75⁶ × 0.25⁽¹⁰ ⁻ ⁶⁾

P(6) = 0.146

Read more at; brainly.com/question/24239758

4 0

3 years ago

a submarine dives as shown in the diagram. to the nearest degree, determine the dive angle whose measure is X.

ollegr [7]

Answer:

75.96

Step-by-step explanation:

$Tan= \frac{opposite}{adjacent}$

$Tan X= \frac{500}{125}$

$Tan X ^{-1} (Tan X)= Tan X ^{-1}(\frac{500}{125} )$

Answer 75.96

3 0

3 years ago

If there is one-third of a pizza left, and Becky only wants to eat one-half of it, how much of the pizza does she want?

natali 33 [55]

She wants to eat 1/6 of the pizza.

5 0

3 years ago

Read 2 more answers

Gianna is preparing for the upcoming tennis season. According to her schedule, she can complete at most 10 workouts this week. I

Strike441 [17]

The whole number of minutes that Gianna complete each week as a function of x and y:
$45x+30y$
Since the above number is greater than 450 minutes, we get the inequality:
$45x+30y\geq450$
Also, "she can complete at most 10 workouts this week" so we deduce the inequality:
$\\x+y\leq10$
Therefore, the system of inequalities is the following:
$45x+30y\geq450$
$\\x+y\leq10$
The above system has many solutions, for example :

4 0

3 years ago