Mathematics High School

Which substances would be a good conductor of electricity, and heat energy?
A. NaCl (s)
B. NH3(s)
C. Cu(s)
D. CH 3 CH 2 OH (I)

Answers

Answer 1

Answer:

D. CH 3 CH 2 OH (I)

Step-by-step explanation:

Related Questions

Estimate each percent.


51% of 62
Group of answer choices

of 60 is 30

of 60 is 20

of 60 is 15

of 60 is 12

Answers

Answer:

51% of 62 is 31.62 but rounded would be 30

Step-by-step explanation:

Answer:

I give that man Brainlyest right now

Plz answe it all plz help i will give brainlest and thanks

Answers

#3                                   #4

V= lwh                             V= lwh

V= 1 1/4 x 1 1/4 1 1/4         V= 2 1/2 x 1 1/4 x 2 2/3

V= 1.95 cm.                     V= 8.33 ft.

#5                                   #6

V= 735                           Height= 15 - 2 = 13

25 x 8.4 = 210               V= lwh

735 - 210 = 525            V= 19.5 x 12 x 13

length = 525 m.            V= 3042

I really hope this helps and sorry if I'm wrong; Good Luck :]

It takes a teacher 20 minutes to grade 4 assignments. At this rate, how long will it take the teacher to grade 11 assignments? A 30 minutes B. 5 minutes 40 minutes 55 minutes​

Answers

Step-by-step explanation:

C 55 minutes

help me please for my final

Answers

Answer:

Equation of line l,

3x-4y=1/2

y=3/4x-1/2

we get,

slope of line l =3/4

Equation of line m,

x-5=2y

y=1/2-5/2

Hence slope of line m=1/2

Slope of line l is not equal to slope of line m. Hence the line are not parallel.

Slope of line l* slope of line m ,

(3/4)*(1/2) =3/8

Since the product of slope of line l and the slope of line m is not equal to -1, the lines are not perpendicular.

Hence the lines are neither perpendicular nor parallel..

Answer:

none are parallel

Step-by-step explanation:

Triangle ABC has vertices A(2,0), B(6,0) and C(4,5). Prove that the triangle is isosceles and ​not​ a right triangle

Answers

It’s not a triangle. If u plot them on the coordinate plane it will not look like a triangle.

Can someone help me please thank you

Answers

Answer:

c and d

Step-by-step explanation:

a slae price cant be one whole so those are the only reasonable options.

Answer:

C

Step-by-step explanation:

...........................C..............

A fraction whose value is the same as 2/3 is

Answers

Answer:

A fraction whose value is the same

[tex] \frac{2}{3} [/tex]

is

[tex] \frac{4}{6} [/tex]

Answer:

4/6 or 6/9 or 8/12 or 10/15, etc

write equivalent fractions for 3/5 and 1/4 using 20 as a common denominator

Answers

Answer:

12/20 and 5/20

Step-by-step explanation:

for 3/5is multiplied with 4 both numerator and denominator

as known as 1/4 will multiplied by 5/5

The equivalent fractions to the given fractions with 20 as denominator are 12/50 and 5/20.

What are fractions?Any number of equal parts is represented by a fraction, which also represents a portion of a whole. A fraction, such as one-half, eight-fifths, or three-quarters, indicates how many components of a particular size there are when stated in ordinary English. Finding the reciprocal of the second fraction—reversing its numerator and denominator—is the first step in dividing fractions. Multiply the two numerators after that. Multiply the two denominators after that. If necessary, simplify the fractions to finish.

So, the equivalent fraction with 20 as the denominator:

Then, do the calculations as follows:

3/5 × 4/4 = 12/501/4 × 5/5 = 5/20

Therefore, the equivalent fractions to the given fractions with 20 as denominator are 12/50 and 5/20.

know more about fractions here:

https://brainly.com/question/28933207

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Which expression uses the greatest common factor and the distributive property to rewrite the sum 7 + 75

Answers

Answer:

[tex]75 + 45[/tex] [tex]= 15(3 + 5)[/tex]

Step-by-step explanation:

Given

[tex]75 + 45[/tex] -- Corrected

Required

Use the GCF to write it as a distributive property

First, we find the GCF of 75 and 45

[tex]45 = 3 * 3 * 5[/tex]

[tex]75 = 3 * 5 * 5[/tex]

The common factor is:

[tex]GCF = 3 * 5[/tex]

[tex]GCF = 15[/tex]

So, [tex]75 + 45[/tex] becomes

[tex]75 + 45[/tex] [tex]= 15 * 3 + 15 * 5[/tex]

Factorize

[tex]75 + 45[/tex] [tex]= 15(3 + 5)[/tex]

Hence, the sum has been rewritten as [tex]15(3 + 5)[/tex]

What is the actual length and width of the living room? Show your work.

Answers

20 is the area
And 18 is the perimeter

Your grandparents bring you a 1:800 scale model of the Eiffel Tower after a trip to Paris. The height of the model is 40.5 centimeters. Find the actual height x (in meters) of the Eiffel Tower.

x= _____ meters

Answers

It is 1063 feet tall

Plz!!!!!! HELP!!! Need this!!

Answers

Answer:

i cant see it

Step-by-step explanation:

Answer:

men: m(x)=38.5x+25 ; female:  f(x)=38.5x+6

I'm not sure about b, but those are the answers for a.

Step-by-step explanation:

because

If 6 – 2x – 8x = 16, then 5x = ?
a. 10
b. -2
c. -1
d. -5

Answers

6 - 10x = 16
-10x = 10, x = -1
5(-1) = -5
The answer is d

Please help me please

Answers

It’s the c :)
..........

im confused lol can someone plz help me

Answers

Answer:

4.5 i believe correct me if i'm wrong

Step-by-step explanation:

Can u help me find the Answer

Answers

-20x-16

= -4(5x + 4)

I think 4 ×-5 = -20x

4×-4 = -16x

PLEASE HELP!!!! URGENT
A video rental store charges a $20 membership fee and $2.50 for each video rented. What would you spend to
be a member of the store and rent 3 movies for the weekend?

Answers

Answer:

27.5

Step-by-step explanation:

You know that the member ship is 20 dollars. For every movie rented you pay 2.5 dollars, and if you rent out 3 movies you can multiply 3 by the value of each movie

2.50 x 3 =7.5

20 + 7.5 = 27.5

Hope this helps

Daria pays x dollars for a pair of shoes. The tax on shoes is
6%. The expression representing her total cost is x + 0.06x.
Which expression is equivalent and why?
A. (0.06) because the cost of the shoes can be factored out.
OB. 1.6x because adding 6% to the cost of the shoes is the same as
multiplying the cost by 1.6.
O.
C. 1.06x because adding 6% to the cost of the shoes is the same as
multiplying the cost by 1.06.
D. 1.06x because adding $6 to the cost of the shoes is the same as
multiplying the cost by 1.06.

Answers

Answer:

C

Step-by-step explanation:

The diameter of a circle is 10 m. Find its circumference in terms of \piπ.

Answers

Answer:

31.42 m

Step-by-step explanation:

10* π= 31.415( which can round to 31.42)

Step-by-step explanation:

Diameter= 10 m

Circumference of a circle= π×Diameter

= π×10

= 31.41593 or 31.42

please help. thank you

Answers

35° on left side is equal to x on right side. x = 35°

ANSWERS NEEDED TODAY!!!!!
1:5x=2x+24
2:4x-2+10x+14=180
3:x+4+3x+2=90

Answers

8,12,21 1.8 2.12 3.21

The scores on a test given to all juniors in a school district are normally distributed with a mean of 79 and a standard deviation of 7. Find the percent of juniors whose score is no more than 86. The percent of juniors whose score is 86 or below is %.

Answers

Answer:

p (x -<-89) = p( _x_-_75_ < _ 89_- __75__) = p (z <_ 2) = 0.9773= 97.73%

7 7

hope i helped u today and hope the best on it good luck :)

hope to have a Brainliest !!

have a good as day!

5/6- 2/3= need answer plz

Answers

Answer:

0.16666666666

Step-by-step explanation:

What is the value of 2 + b(a? + 4) when a = 2 and b = 4?
A 22
B 34
C 2
D 48

Answers

Answer: 26

Step-by-step explanation:

lets replace a and b with the numbers provided

2+4(2+4)=2+4(6)=2+24=26

slope is 2 and (3,4) is on the line. solve

Answers

Answer:

Step-by-step explanation:

y-y1 = m(x-x1)

y-4 = 2(x-3)

y-4=2x-6

y= 2x -6+4

y=2x-2

Please help ill mark brainliest please, please, please

Answers

Answer: I think its (B) Reflection over the x-axis

Step-by-step explanation: Hope this helps!

Answer:

reflection over the x axis

Step-by-step explanation:

because the line that there reflecting over is the x axis line thats left to right, not y axis which is up and down

hope that helps, have a great day :>

SOMEONE HELP ME PLEASEEE

Answers

Answer:

I would say A

Step-by-step explanation:

A guitar was originally priced at $90, but Natalie waited to buy it until the guitar was on sale for 5% off. If she paid 4% sales tax on the sale price, how much did she pay in total?

Answers

Answer:

They paid $89.1 for the guitar.

Step-by-step explanation:

Can I have Brainliest?

Francisco starts pouring water in a tank when the tank has 3 liters
in it. Then he pours the water at a rate of 4 liters per min.
Write the equation of this function and graph it.

Answers

The equation is Y= 4x +3

What value of x makes the equation 3(x – 6) = 8x – 3(3x + 7) true?

Answers

Answer:

I believe that x = -3/4 makes the equation true.

Step-by-step explanation:

3(-3/4 - 6)=8x - 3(3x + 7) is a true value equation.

I hoped this helped you answer your question.  

Answer:

The answer is -3/4

Step-by-step explanation:

Feel free to give brainliest

Have an amazing day!

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