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3 years ago

Math sucks....who wants the brainlyest???? answer correctly and you'll get it.

Mathematics

2 answers:

bonufazy [111]3 years ago

6 0

Answer:

Put 1/2x on the line going straight across which is x with is somewhere in between 0 and 1

put -7 on the line going up and down which is y

the second one put it on -1 which is -x going straight across

put 2 on the line going up and down which is y

Step-by-step explanation:

Svet_ta [14]3 years ago

3 0

Answer: so y = 1/2 x-7 point is gonna go on 0,-7 and y=-x+2 is gonna be on 0,2....i used desmos.

Step-by-step explanation: Oh and i want brainlest lol...its been a long time so hopefully i get this right lol

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Find the volume of the pyramid.

zlopas [31]

Answer:

Step-by-step explanation:

Formula=area of base x height / 3

A= ( 3 x 1 ) x 7 / 3

A= 3 x 7 / 3

A= 21 / 3

A= 7

8 0

3 years ago

Question 4 options: Find the mean and standard deviation for a binomial distribution with 680 trials and a probability of succes

lys-0071 [83]

Answer:

Mean for a binomial distribution = 374

Standard deviation for a binomial distribution = 12.97

Step-by-step explanation:

We are given a binomial distribution with 680 trials and a probability of success of 0.55.

The above situation can be represented through Binomial distribution;

$P(X=r) = \binom{n}{r}p^{r} (1-p)^{n-r} ; x = 0,1,2,3,.....$

where, n = number of trials (samples) taken = 680 trials

r = number of success

p = probability of success which in our question is 0.55

So, it means X ~ $Binom(n=680, p=0.55)$

Now, we have to find the mean and standard deviation of the given binomial distribution.

Mean of Binomial Distribution is given by;

E(X) = n $\times$ p

So, E(X) = 680 $\times$ 0.55 = 374

Standard deviation of Binomial Distribution is given by;

S.D.(X) = $\sqrt{n \times p \times (1-p)}$

= $\sqrt{680 \times 0.55 \times (1-0.55)}$

= $\sqrt{680 \times 0.55 \times 0.45}$ = 12.97

Therefore, Mean and standard deviation for binomial distribution is 374 and 12.97 respectively.

3 0

3 years ago

What is a prism ???????????????????????

Leto [7]

A solid geometric figure whose two end faces are similar, equal, and parallel rectilinear figures, and whose sides are parallelograms.

hope that helps

8 0

3 years ago

How to graph 9x+5y=-45

lilavasa [31]

9x +5y= -45 put in standard form y= mx+b coefficient of x is the slope, b is the y intercpept 5y= -9x -45 y= -9/5 x -45 graphing will start at -45 on the y axis from that point go down 9 to the right 5 for the slope continue and graph minimum 2 points to draw the line hope this helps

8 0

3 years ago

Please answer will mark branliest

Flauer [41]

Step-by-step explanation:

5 tank tops= $20

5 t-shirts= $35

20/5= 4

35/5=7

7-4=3

The t-shirts are $3 more than the tank tops

4 0

3 years ago