All categories

2 years ago

2(-6)2 – 3(8) + 4(-6)2

Mathematics

2 answers:

yaroslaw [1]2 years ago

5 0

The answer is the following :-

-96

Llana [10]2 years ago

4 0

Answer:

-96

Hope this helps ya out!

You might be interested in

Lori bought some cookies for $2 each and muffins for $3 each. She bought twice as

Lubov Fominskaja [6]

Answer:

2 cookies

Step-by-step explanation:

let c represent cookies, m represent muffins. set up a system of equations:

2c+3m=16

m=2c

(the top equation shows that cookies are $2 each, and muffins are $3, and that the total cost is $16. the bottom equation shows that Lori bought twice as many muffins as cookies).

then solve the system of equations by substitution, substituting 2c for m in the top equation:

2c+3(2c)=16

2c+6c=16

8c=16

c=2

this means that lori bought 2 cookies.

7 0

2 years ago

Read 2 more answers

The director of the library calculates that 29% of the library's collection is checked out. If the director is right, what is th

marusya05 [52]

Answer:

The probability that the proportion of books checked out in a sample of 412 books would differ from the population proportion by less than 4% is P=0.9255.

Step-by-step explanation:

The population's proportion is $\pi=0.29$

If we take a sample of 412 books (n=412), we have a standard deviation of the sampling distribution of:

$\sigma_M=\sqrt{\frac{\pi(1-\pi)}{n}}=\sqrt{\frac{0.29*0.71}{412}}=\sqrt{0.0005} =0.0224$

We have to calculate the probabilty that the sample proportion will be between 0.25 and 0.33.

$z_1=(0.25-0.29)/0.0224=-0.04/0.0224=-1.7857\\\\z_2=1.7857\\\\\\P(0.25$

8 0

3 years ago

Help me with this please

nalin [4]

This is incorrect. X can be negative, making the expression on the left less than 0. If x were -10, then:
3 x -10 + 1 > 0
-30 + 1 > 0
-29 > 0
Is NOT true.

5 0

2 years ago

I need help with this question. 12 points

olasank [31]

There is no question

8 0

2 years ago

Read 2 more answers

WHOEVER ANSWERS 1ST AND HAS CORRECT ANSWER WILL GET MARKED AS BRAINILIEST

Dovator [93]

It is C. Associative property of multiplication

3 0

2 years ago