3 years ago

Help please

Mathematics

1 answer:

Nastasia [14]3 years ago

6 0

math is so hard.......

You might be interested in

What is the value of 30-2(7+2)-1? A. 11 B.14 C.17 D. 19 HURRYYYU

OLEGan [10]

Answer:

Step-by-step explanation:

30-2(7+2)-1

PEMDAS says parentheses first

30-2(9)-1

Then multiply

30 -18 -1

Then subtract

12-1

7 0

3 years ago

Read 2 more answers

Which attteibutes do the parent cubic and cube root functions have ?

masya89 [10]

Answer:

its b duhhhhhhhhhh put me brianliest please pls lls

8 0

4 years ago

You have just used the network planning model and found the critical path length is 30 days and the variance of the critical pat

ollegr [7]

Answer: The probability that the project will be completed in 33 days or less is equal to 0.73 .

Step-by-step explanation:

We assume that this is a normally distribution.

Given : The critical path length is 30 days .

i.e. Population mean = $\mu=30$

Variance : $\sigma^2=25$

Then, standard deviation : $\sigma=\sqrt{25}=5$

Z-score : $z=\dfrac{x-\mu}{\sigma}$

The value of z corresponding to 33 = $z=\dfrac{33-30}{5}=0.6$

Now, the p-value = $P(x\leq33)=P(z\leq0.6)=0.7257469\approx0.73$

Hence, the probability that the project will be completed in 33 days or less is equal to 0.73.

6 0

3 years ago

Read 2 more answers

Which ordered pair is a solution of this equation? -3x + 7y - 6 =

Mumz [18]

Answer:

There are actually an infinite number of ordered pairs that will satisfy the equation y=3x+7 including (-1,4), (0,7) and (1, 10).

Step-by-step explanation:

5 0

2 years ago

Luke makes fruit cakes for a stall at a village fete. It costs Luke £1.80 for

zalisa [80]

Answer:

2.43

Step-by-step explanation:

1.80 x 0.35 + 1.80

5 0

3 years ago