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k0ka [10]
3 years ago
10

What function equation is represented by the graph?

Mathematics
1 answer:
larisa [96]3 years ago
5 0

Answer:

f(x)=1/4x-3

Step-by-step explanation:

y=mx+b

y-intercept is -3

-3=b

rise over round to find the slope

up 1 over 4

m=1/4

You might be interested in
What is the answer for m^2-5m-14=0?
tensa zangetsu [6.8K]

Answer: m = 7 or -2

Step-by-step explanation:

Quadratic Formula!  \frac{{-b (+/-)\sqrt{(b^{2}-4ac }}}{2a}

Polynomial Form: ax^{2} +bx+c

So in this example a: 1  b: -5  c: -14

You get:\frac{{-(-5) (+/-)\sqrt{((-5)^{2}-4(1)(-14) }}}{2(1)}

m = 7 or -2

Check by plugging a value back in for m

(7)^{2} -5(7)-14=0?\\(-2)^{2} -5(-2)-14=0?\\

True for both.

3 0
4 years ago
A coin is tossed 600times with the frequencies as:
brilliants [131]

Answer:

  • see below

Step-by-step explanation:

Total number of trials =600.

Number of heads = 342.

Number of tails = 258

On tossing a coin,

let  \: E_1  \: and  \: E_2  \: be  \: the  \: events \:  of \:  getting  \: a  \: head

and of getting a tail respectively.

then,

1)  \: P \:  (getting \:  a  \: head) = \: P \:  (E_1)

\longrightarrow \:  \frac{number \: of \: heads \: coming \: up}{total \: number \: of \: trials}

\longrightarrow \:  \frac{342}{600}  =  \frac{57}{100}

\longrightarrow \: 0.57

\red{ \rule{150pt}{3pt}} \:

2) P (getting \: a\: tail) =P (E_2)

\longrightarrow \:  \frac{number \: of \: tails \: coming \: up}{total \: number \: of \: trials}

\longrightarrow \:  \frac{258}{600}  =  \frac{43}{100}

\longrightarrow \: 0.43

6 0
3 years ago
Question 2 of 10
nasty-shy [4]

The better statistics which can be used to compare the given distributions are mean and standard deviation.

<h3>What is a z-core?</h3>

A z-core is also referred to as a standard score and it can be defined as a statistical measure of the distance between a data point (raw score) and the mean, especially when standard deviation units are used.

In Mathematics, z-scores can either be negative or positive and it is generally calculated by using this formula:

Z=\frac{x\;-\;u}{\delta}

<u>Where:</u>

  • x is the observed data or sample mean.
  • u is the mean.
  • \delta is the standard deviation.

In conclusion, the better statistics which can be used to compare the given distributions are mean and standard deviation.

Read more on standard deviation here: brainly.com/question/4302527

8 0
2 years ago
A building contractor buys 7070​% of his cement from supplier A and 3030​% from supplier B. A total of 9595​% of the bags from A
tatiyna

Title:

<h2>The answer is \frac{133}{174}.</h2>

Step-by-step explanation:

Let the building contractor bought 1000 cement in total.

70% of 1000 = 700 cements were from A and (1000 - 700) = 300 cements were from B.

The number of undamaged bag from A was 95% of 700 = \frac{95}{100} \times700 = 7\times95 = 665 and the number of undamaged bags from B was 70% of 300 = \frac{70}{100} \times300 = 210.

Total undamaged bags were (665 + 210) = 870.

The probability that an undamaged bag is from A is \frac{665}{870} = \frac{133}{174}.

8 0
3 years ago
HELPPP I NEED THIS NOW
NikAS [45]
It’s D

Hope you all have a good day
4 0
3 years ago
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