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2 years ago

BRAINLIEST:

Mathematics

2 answers:

Anettt [7]2 years ago

7 0

Answer:

i think its b tell me if im wrong

Step-by-step explanation:

cricket20 [7]2 years ago

6 0

answer:

c. 2 1/6x + 2 1/6y

step-by-step explanation:

3x−1/2y+2 2/3y−5/6x

solve this to see what you get

3x−1/2y+2 2/3y−5/6x

combine like terms
this will make it easier to solve (its a part of solving this)

3x−1/2y+2 2/3y−5/6x

lets look at the like terms here

−1/2y and + 2 2/3y

3x and - 5/6x

now combine them

−1/2y + 2 2/3y = 13/6y

3x - 5/6x = 13/6x

now look at the original equation and put them together

= 13/6x + 13/6y

= 2 1/6x + 2 1/6y (simplified)

now that we have that simply look at the choices and see which one matches what we got

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3х - 5 = -11 what is x

Gennadij [26K]

Answer:

-2

Step-by-step explanation:

Add 5 to both sides to get

3x-5+5=-11+5

and simplify to get

3x = -6

x = -2

7 0

3 years ago

Read 2 more answers

Please help find the anwser to question 1 and 2

grin007 [14]

16ft and 25ft sorry if i’m wrong

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2 years ago

Confidence Interval Application Many people feel that the drying of pavement marking paint is much too slow. You spend several d

djyliett [7]

Answer:

The sample size is $n =33$

Step-by-step explanation:

From the question we are told that

The margin of error is E = 1.5 seconds

The standard deviation is s = 4 seconds

Given that the confidence level is 97% then the level of significance is mathematically represented as

$\alpha =( 100 -97)\%$

=> $\alpha = 0.03$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 2.17$

Generally the sample size is mathematically represented as

$n =[ \frac{Z_{\frac{\sigma }{2 } } * \sigma }{E} ]^2$

=> $n =[ \frac{2.17 * 4 }{1.5} ]^2$

=> $n =33$

7 0

3 years ago

There are a total of 91 students in a drama club and a yearbook club. The drama club has 19 more students than the yearbook club

abruzzese [7]

Step-by-step explanation:

91-19=72

72/2=36

36+19=55=Drama Club students

36 =Yearbook Club Students

8 0

3 years ago

Identify a counterexample to disprove 6n>n^2/6,where n is a real number.

scZoUnD [109]

Any number larger than 36 would be a counter examples.

When n is equal to 36, both sides of the inequality are equal to 216. As you get larger than 36 the right side is larger than the left side. Therefore, the inequality is not true.

3 0

2 years ago