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3 years ago

PLS HELP MEEEEEEEE I WILL GIVE BRAINLIEST :D

Mathematics

2 answers:

SpyIntel [72]3 years ago

7 0

Answer:

A is true and f is true

Step-by-step explanation:

Sholpan [36]3 years ago

7 0

Answer:

a, d, e, and g

Step-by-step explanation:

if you multiply two negatives, you get a positive

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Help me plz i’ll give extra points

PtichkaEL [24]

The answer to your question is most likely A

4 0

2 years ago

3-2i/5+i<br><img src="https://tex.z-dn.net/?f=3%20-%202i%20%5Cdiv%205%20%20%2B%20i%20%20" id="TexFormula1" title="3 - 2i \div 5

hammer [34]

$3-2i/5+i$

$\frac{3*5+(-2)*1)+(-2*5-3*1)i}{5^2+1^2}$

$\frac{13-13i}{26}=\frac{1-i}{2}$

$=\frac{1}{2}-\frac{1}{2}i$

Hope this helps!

Thank you for posting your question at here on Brainly.

-Charlie

3 0

3 years ago

The results of the math exam showed that three eighths of the students made an “A” and one third of them made a “B”. In total, h

grigory [225]

Answer:

b the answer is b

Step-by-step explanation:

idk what they mean but i got an 100 and i had this questin so a

3 0

3 years ago

Trucks in a delivery fleet travel a mean of 110 miles per day with a standard deviation of 38 miles per day. The mileage per day

Montano1993 [528]

Answer: 0.1824

Step-by-step explanation:

Given : The mileage per day is distributed normally with

Mean : $\mu=110\text{ miles per day}$

Standard deviation : $\sigma=38\text{ miles per day}$

Let X be the random variable that represents the distance traveled by truck in one day .

Now, calculate the z-score :-

$z=\dfrac{x-\mu}{\sigma}$

For x= 132 miles per day.

$z=\dfrac{132-110}{38}\approx0.58$

For x= 159 miles per day.

$z=\dfrac{159-110}{38}\approx1.29$

Now by using standard normal distribution table, the probability that a truck drives between 132 and 159 miles in a day will be :-

$P(132$

Hence, the probability that a truck drives between 132 and 159 miles in a day =0.1824

6 0

3 years ago

samanthas house is 72 feet wife. in a photograph the width of the house was 4 inches, and its height was 2.5 inches. what is the

Anna11 [10]

So to find the ratio of the actual house to the house in the picture you would divide 72/4 to get 18. this means that the ratio is 18:1. Now multiply 2.5 x18 to get the real life height of the house. 2.5x18=45.
So the house is 45 feet tall.
Please anyone correct me if I'm wrong but I think this is right.

7 0

3 years ago