Mathematics High School

explain why the miniscus of mercury is bent upwards
​

Answers

Answer 1

Answer:

Step-by-step explanation:

A concave meniscus, which is what you normally will see, occurs when the molecules of the liquid are attracted to those of the container. This occurs with water and a glass tube. A convex meniscus occurs when the molecules have a stronger attraction to each other than to the container, as with mercury and glass.

Related Questions

pizzas. kids
3 7
_ _
_ _
_ _
_ _

Answers

Answer:

pizza                 kids

3                          7

6                         14

12                        28

24                       56

48                       112

-----------------------------------------

:)

the answer above is correct. because you basically just have to multiply the number by 2!!

1) Evaluate 3+ (a + 4)(8 – b) when a
5 and b = 6

Answers

Answer:

21

Step-by-step explanation:

3+(5+4)(8-6)

3+(9)(2)

3+18=21

Answer:

The answer is 21

Step-by-step explanation:

3+(a+4)(8-b)

3+(5+4)(8-6)

3+9x2

3+18

21

Hope this helps

Please help me I’ll give you brainless it’s due in 20 minutes

Answers

1. X=41
2. x=17
3. x=25
4. x=81

Hope that helps

In CT the sales TAX on items purchased is 6.35% what would the tax be if you went to CVS and purchased the following items: Toothbrush $4.95, Toothpaste $3.05 and Floss $2.25?

Answers

Answer:$2.65

Step-by-step explanation: enjoy

If it takes 2 cups of sugar for 24 cookies, how many cups of sugar will it take for 72 cookies?

Answers

i think it’s 6 cups

Answer:

6

Step-by-step explanation:

72/24=3

3*2=6

Add. (3x + 4) + (2x + 4)

Answers

Answer:

5x+8

Step-by-step explanation:

(3x+4) + (2x+4)
Combine like terms : 5x+4
Combine 4 and 4:
5x+8
Answer- 5x+8

Explain why two angles in a triangle cannot measure 80° and 100°.

Answers

because it wont make scenes when its already 180

HELP PLEASE! WILL GIVE BRAINLIEST!
jack simplified the expression below!
Determine whether not jack is correct!
if he isn't explain the mistakes and provide the correct work!
{1}{3} (2x+9)+{2}{3} (4x-3) {2}{3} x+27{8}{3}x+2{10}{3}x+29
PLS HELP I AM BEHIND ON MY MATH AND FAILING!! I REALLY NEED HELP PLEASE I WILL GIVE BRAINLIEST!

Answers

Answer:

2116x2 + 3355 + 146

Step-by-step explanation:

Hope this helped <3

Penny makes 5 liters of applesauce. She saves 0.92 liter for dinner and puts the rest in jars. If each jar holds 0.68 liter, how many jars can she fill? Penny can fill jars.

Answers

01921

Step-by-step explanation:

The cone shown has a radius of 6 inches and a slant height of 10 inches. What is the total surface area of the cone?

Answers

Answer:

[tex]A=301.71\ \text{inches}^2[/tex]

Step-by-step explanation:

Given that,

The radius of a cone, r = 6 inches

The slant height of the cone, l = 10 inches

We need to find the total surface area of the cone. It is given by :

[tex]A=\pi rl+\pi r^2[/tex]

Substituting all the values,

[tex]A=\pi r(l+ r)\\\\A=\dfrac{22}{7}\times 6\times (10+ 6)\\\\A=301.71\ \text{inches}^2[/tex]

So, the total surface area of the cone is [tex]301.71\ \text{inches}^2[/tex].

all values of x
5 ( x + 10 )^2 − 30 = − 5
Plzzzz

Answers

i got -7. 76 or rounded to -8. If right can you please mark me brainliest?

BC =using the Distance Formula



A. 5


B. 7


C. 11


Don’t choose randomly or write “just doing this for points” cause its annoying and I’m having an exam.

Answers

Answer: Option A: 5

Step-by-step explanation:

If yo have the pairs (a, b) and (c, d)

The distance between these two points is:

distance = √( (a - c)^2 + (b - d)^2)

Here we want to find the distance between points B and C.

We can see that the coordinates of each one are:

point B: (-5, 5)

Point C: (-1, 2)

Then the distance between these points is:

AB = √( (-5 -(-1))^2 + (5 -2)^2) = 5

AB = √( 4^2 + 3^2)

Then the correct option is A

Can you plz solve 6-8 on this pic you have to find the area for it plz

Answers

Answer:

Figure 3: 28.5 units²

Figure 4: 33 units²

Figure 5: 25 units²

Figure 6: 30 units²

Figure 7: 25 units²

Figure 8: 32 units²

Reasons:

Figure 3 consists of 2 shapes, A rectangle and a square

                  ████████                                           ◣

rectangle: ████████            triangle:               █◣

                   ████████                                          ██◣

rectangle:

to calculate a rectangle's area: multiply the lengths of the width and height:

████████= width  8           █

                                                █    =height 3

                                                █

[tex]area=w(h)[/tex]

now substitute the values of W and H:

[tex]8(3)=24[/tex]

rectangle area = 24

Triangle:

to find the area of a triangle, multiply the width and height and divide by two:

◣ + ◣ = █         0.5 + 0.5 = 1

                                                █    

███=width   3                         █ =height  3

                                                █    

               

[tex]area=\frac{w(h)}{2}[/tex]

now substitute W and H

[tex]area=\frac{3(3)}{2}[/tex]

[tex]area\frac{9}{2}[/tex]

Triangle area: 4.5

Now add the Rectangle Area To the triangle Area:

4.5 + 24 = 28.5

Final answer:

AREA =2 8.5

hope this helps!

grrrr i have no idea what this unit is talking about please help

Answers

Answer:

SSS Triangle Congruence.

After Mike made deposits of $32.88 and $422.73 and wrote checks for $350.00, $126.13, and $41.09, he had $249.81 in his checking account. How much was in the account before this activity?

Answers

Answer:

$311.42

Step-by-step explanation:

assuming he would have $0.00 dollars left over after the checks. add the checks together then add the deposits together then subtract.

767.03 - 455.61 = 311.42

List the steps in order you used to evaluate 6(x-5) when substituting x=8. Can you think of a different way to solve 6(x-5)=18 based on reversing these steps? * 15 Points)​

Answers

So we can do 6(x-5)=18 and then divide 18 by 6 so we take the 6 in the equation and divide that by 6. So then the equation is x-5=3 and then x equals 8

Just answer don’t explain please fast

Answers

Answer:

87

Step-by-step explanation:

done but not sure though

53% of students are male and 47% are female.
How many male students are there?
Please help Thanks.❤️

Answers

Answer:

100%

Step-by-step explanation:

53+47=100

Couldn’t come up with an answers help ASAP


Answers

the answer is the third one

3. Find the rule for the function
table. 4 = ?

Answers

Answer:

4 = 12

Here is your answer.

Answer:

1x4=4

2x4=8

3x4=12

4x4=16

5x4=20

Need help with B I’ll name brainless help due today

Answers

Answer:

f(12) = 9

x = 0 when f(x) = 5

Step-by-step explanation:

help pls

. ________.

Answers

Answer:

#8)  x = 12

Step-by-step explanation:

vertical angles are congruent

5x + 10 = 70

5x = 60

x = 12

Simplify 3c^2 + 5c^2 - c^2

Answers

since they’re all like terms u can just add/subtract them
3+5-1=7
7c^2 is the answer

Answer:

7c^2

Step-by-step explanation:

I hope this helps have a great day

Verify Euler's formula for

(a) Tetrahedron

(b) Hexagonal prism

Answers

Answer:

Euler's formula for polyhedron is:

V - E + F = 2where V- vertex, E- edge, F- face

As per the above formula the relationship between the vertexes, edges and faces is same for any polyhedron.

Lets confirm, have a look at the picture

(a) Tetrahedron, count each element:

V = 5, E = 8, F = 5

Verify

5 - 8 + 5 = 10 - 8 = 2 - correct

(b) Hexagonal prism, count each element:

V = 12, E = 18, F = 8

Verify

12 - 18 + 8 = 20 - 18 = 2 - correct

What is the equation of this trend line? Enter your answers by filling in the boxes

Answers

Answer:

-1/2M + 110

Step-by-step explanation:

The slope of the line if the scale is right should be -1/2M as it goes down half the speed. The y intercept is 110.

please help me solve 3x-2

Answers

Answer:

the answers -6

Step-by-step explanation:

Aisha has a smart phone data plan that costs $25 per month that includes 4 GB of
data, but will charge an extra $15 per GB over the included amount. How much
would Aisha have to pay in a month where she used 3 GB over the limit? How much
would Aisha have to pay in a month where she used went over by x GB?

Answers

Answer:

b

Step-by-step explanation:

What is the value of x for 2x+14=y

Answers

Answer:

x = (y - 14) / 2

Step-by-step explanation:

2x + 14 = y

2x = y - 14

x = (y-14)/2

Richard Hoskins was the leader of a 4-H club with 27 children. When he divided the club into groups of 5 to play a game, how many groups did he have? How many extra children were there?

Answers

Answer:

5 groups

2 extra children

Step-by-step explanation:

The computation of a number of groups and number of extra children is shown below:

Given that

There is 27 children

And, this group would be divided into group 5

So,

As we know that 25 is easily divided by 5

So there are 5 groups

And, the extra children is

= 27 - 25

= 2 chidren

1.5,3,4.5,6,...arithmetic sequence or geometric sequence

Answers

Answer:

Step-by-step explanation:

1.5 , 3 , 4.5 , 6  ............

This is an arithmetic sequence. Each term is obtained by adding 1.5 to the previous term.

First term = 1.5

Common difference = second term - first term

                                 = 3 - 1.5 = 1.5

Check:

Second term = 1.5 + 15 = 3

Third term = 3 + 1.5 = 4.5

Fourth term = 4.5 + 1.5 = 6

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