PLZ HELP FAST IN HAVE TO FIND THE SURFACE AREA OF A 3D SHAPE

Answer:

Common difference = 4

Position of 103 = 25th term

Step-by-step explanation:

a)

According to the given information:

[tex] a_3 + 20 = a_8[/tex]

[tex] a+ (3-1)d + 20 = a+ (8-1)d[/tex]

[tex] \cancel a+ 2d + 20 = \cancel a + 7d[/tex]

[tex] 2d + 20 = 7d[/tex]

[tex] 20 = 7d-2d[/tex]

[tex] 20 = 5d[/tex]

[tex] d = \frac{20}{5}[/tex]

[tex] \purple {\bold {d = 4}} [/tex]

Common difference = 4

b)

[tex] \because a_3 = 15....(given) [/tex]

[tex] \therefore a + (3-1)d = 15[/tex]

[tex] \therefore a + 2d = 15[/tex]

[tex] \therefore a + 2\times 4= 15[/tex]

[tex] \therefore a + 8= 15[/tex]

[tex] \therefore a = 15-8[/tex]

[tex] \red{\bold {\therefore a = 7}} [/tex]

[tex] \because a_n = a + (n - 1) d[/tex]

[tex] \therefore 103 = 7 + (n - 1)4 [/tex]

[tex] \therefore 103 - 7 = (n - 1)4 [/tex]

[tex] \therefore 96 = (n - 1)4 [/tex]

[tex] \therefore \frac{96}{4}= n - 1[/tex]

[tex] \therefore 24= n - 1[/tex]

[tex] \therefore 24+1= n[/tex]

[tex]\blue{\bold {\therefore n = 25}} [/tex]

So, the position of 103 in this sequence is 25th term.

Answer:

72 is the answer

Step-by-step explanation:

number of sides=5 and exterior angle formula =360/n

360/5=72

Answer:

Step-by-step explanation:

Your formatting is unclear. Do you mean (54⁴)? or (5⁴)⁴ ?

Answer:

18.9

Step-by-step explanation:

You need to find 37% of 51

In other words: 37% x 51

180° in a tringle

41°+90°=131

180°-131° to get your answer so 180-131=49

Answer:

Step-by-step explanation:

Johnny mows lawns after school and earns $10 per hour.

Let the number of hours h mows = x

Total earning of Johnny = $10x

If the earning is represented by the variable 'y' equation representing the total earnings will be.

y = 10x

Table for Input output values,

x      0        1          2           3          4

y      0        10       20         30       40

i think It is 21! Let me know if i is wrong.

Answer:

I think the answer will be 20. It is oppsite sides and the lines look even. The area is small as well. So I think 20˙ will be the best option.

a). 20°

The angle x is equal to 20° because vertical angle.

Answer:

As there is Bracket lats solve it first but as there is '-' sign before the bracket sign in the bracket will change. so we will have,

'800+900×25-65(89-5)-12÷67-7'

Solving the bracket gives us:

'800+900×25-65(84)-12÷67-7'

Now avoiding the Bracket:

'800+900×25-5460-12÷67-7'

Now first we have to do MUltiplication, so we will get,

'800+22500-5460-12÷67-7'

Now let's do the division, so we will get,

'800+22500-5460-0.17-7'

Now lets do the additions and subtractions we will get,

Answer:

z = [tex]\frac{4x}{y}[/tex]

Step-by-step explanation:

Given z varies directly with x and inversely with y then the equation relating them is

z = k × [tex]\frac{x}{y}[/tex] ← k is the constant of variation

To find k use the condition z = 10 when x = 5 and y = 2, then

10 = k × [tex]\frac{5}{2}[/tex] ( multiply both sides by 2 to clear the fraction

20 = 5k ( divide both sides by 5 )

4 = k

z = [tex]\frac{4x}{y}[/tex] ← equation of variation

The function that models the asked relationship is 4x / y

A variation is a relation between a set of values of one variable and a set of values of other variables.

Given that, z varies directly with x and inversely with y then the equation relating them is,

z = (k × x) / y, where, k is the constant of variation

Finding k by using the condition z = 10 when x = 5 and y = 2, then

10 = (k × 5) / 2

20 = 5k

k = 4

Therefore, the equation of variation is 4x / y

Hence, the function that models the asked relationship is 4x / y

Learn more about variation, click;

https://brainly.com/question/13977805

#SPJ2

Answer:

b/h

Step-by-step explanation:

Answer: The answer is B, B/H

Step-by-step explanation: Cosine is always Adjacent(B) over Hypotenuse (A)

Hope that helps!

Answer:

61.5

Step-by-step explanation:

12.30 time 5 is 61.5

Answer:

Step-by-step explanation:

a rectangular tree lot must have a perimeter of 100 yards and an area of at least 500 square yards. Describe the possible lengths of the tree lot

Answer:

25 questions.

Step-by-step explanation:

Correct answer = 18

The percent score of the correct answers is 72%.

Let there are x questions in the test. So,

According to the given condition,

[tex]72\%\ of\ x=18\\\\\dfrac{72}{100}x=18\\\\x=\dfrac{18\times 100}{72}\\\\x=25[/tex]

Hence, there were 25 questions in the geometry test.

Answer:

9

.......................

Answer:

where is the polynomial (?)

Step-by-step explanation:

Answer:

29

Step-by-step explanation:

The Point Slope Formula is y=mx+b

m represents the slope.

So, in the equation y=29x-7, the number 29 is in place of the m.

Therefore, that would make 29 the slope.

Hope this helps! :)

Answer:

W= +4

Step-by-step explanation:

Cymath♥️

Answer:

d i believe b is your answer your welcome

Answer:    y= -22

Step-by-step explanation:

Set up a proportional relationship and solve  

If y is -6 and x will be 3   then what will y be when x is 11. \

We can represent that situation like this,

[tex]\frac{-6}{y} = \frac{3}{11}[/tex]    cross multiply  

3y = -66     Divide both sides by 3

y = -22

Answer: Circumference=75.4, Diameter=24, Area=452.39

Step-by-step explanation: Hope this helps if it does can I get Brainliest.

Answer:

La respuesta a tu pregunta es sies (6)

Step-by-step explanation:

300/5 cajas = 6 cajas

300/5 boxes is equal to 6 boxes in total that are full.

Espero haber ayudado!

Hope I helped!!!

GL :)

Answer:

x=6 and y= -6

Step-by-step explanation:

for this one is more easy in how are your equations.

-4x-2y= -12

4x+8y= - 24

as you can see the x's in both equations are the same number and opposite sign (+,-)

solving by elimination do you need to start with equations with one of the variables in both equations with the same number and different sign.

after you have your equation you combine both and you can eliminate x

-4x-2y= - 12 after you combine you are going

4x+8y= - 24 en with 6y=-36

6y= -36 the next step is divide 6 in both

6 6 sides

y= - 6 ⬅️and you ends whit this

after you solve for one of the letters you need to find the other ones. in this case we need to find x

so to find x you only needs to use one of the original equations and solve for x

-4x-2y= -12 original equation

-4x-2(-6)= -12 switch the y -6

-4x+12= -12 multiply the -6×2

-12. -12 substract 12 in both sides

-4x= -24 divide -4 also in both sides

-4 -4

x=6 final answer.

here is also how do you do you solve for x using the other equation; and you can see that we get the same answer, but you don't need to copy both of the equations when you are solving for the other letters jus I write also how do you do with this one in case that can be necessary or if this helps you. Also are the same steps as the other one.

4x+8y= - 24

4x+8(-6)= -24

4x-48= - 24

+48 +48

4x=24

4 4

x=6

I hope and this helps and I'm really sorry for make this longer.

Answer:

a=1/2bh is triangle a=bh is parallelogram and the other one is trapezoid

Step-by-step explanation:

Answer:

Triangle: 1/2bh

Trapezoid: 1/2(b+b)h

parallelogram = bh

good luck!!

Answer:

Perhaps the most important reason to study math is because the study of mathematics builds problem-solving skills. All citizens need to know how to reason and analytically think through a problem. The habits of mind associated with learning mathematics trains our brains to seek solutions in a logical way. Math will help you through your everyday life. It could even help you through colleges and or jobs. Paying for stuff in a store you must know how much you have to pay with your money. If your cashier you have to know how much change they need back. Math is super important. It helps with so many things.

Step-by-step explanation:

there you go :)

Answer: Option D: Inequality.

Step-by-step explanation:

A relation between two unequal values that are compared using the symbols > and <, such like:

A < B    (A is less than B)

A > B (A is greater than )

Are called inequalities.

This is because this is a relation between two unequal values.

Then the correct option is D.

Answer:

Step-by-step explanation: