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3 years ago

See picture above and solve surface area

Mathematics

1 answer:

Xelga [282]3 years ago

6 0

Answer:

Get Vectored !!

Step-by-step explanation:

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I need help with these

3241004551 [841]

1. a= 60 (vertically opposite angles)

b= 360-(60+60)=240/2= 120 (angles at a point)

c= 120 (vertically opposite angles with b)

2. c= 90-40= 50 (vertically opposite angles)

b=a=360-90-90=180/2=90 (angles at a point)

3. a= 180-52-51= 77 (angles on a straight line)

b=52 (angles at a point)

d=51 (angles at a point)

c=77 (angles at a point)

4. a= 60 (vertically opposite angles)

b= 360-(60+60)=240/2= 120 (angles at a point)

c= 120 (vertically opposite angles with b)

e=65

d=f= 360-65-65=230/2=115

h=55

i=g=360-55-55=250/2=125

5. b=163

a=90

e=70

d=360-70-70=220/2=110

c=360-163-163=34/2=17

Hope this helps!

4 0

3 years ago

If (x, y) is a solution to the system of equations, what is the value of x? 2x + 1/ 2 y = 2 1/ 2 x + 2y = 6

Veseljchak [2.6K]

Answer:

C) 4/15

Step-by-step explanation:

The two equations ...

2x + 1/2y = 2
1/2x + 2y = 6

can be solved for x using Cramer's rule:

x = (2·2 -1/2·6)/(2·2 -1/2·1/2) = (4-3)/(4-1/4) = 1/(15/4)

x = 4/15

_____

Cramer's rule for the solution to ...

ax +by = c
dx +ey = f

is ...

∆ = ae-db
x = (ce -fb)/∆
y = (fa-dc)/∆

6 0

3 years ago

2 2/3 of what number is 6 1/7

baherus [9]

Answer:

2.3

Step-by-step explanation:

2 2/3 × X= 6 1/7

8/3 × X= 43/7

8x/3 =43/7

cross multiply;

56x=129

Divide both sides by 56

56x/56= 129/56

x= 2.3036=2.3

5 0

3 years ago

What is 1 ten thousand + 19 thousands+ 2 tens+ 9 ones in standard form

Lynna [10]

The answer is 29029
10000+19000+20+9=29029

3 0

4 years ago

- Write a recursive formula to represent the sequence below. (3,7, 11, 15, 19,23,27,31,35, ...)

NemiM [27]

The recursive formula to find nth term of sequence is:

$a_n = 4n - 1 \text{ where } n \geq 1$ and n = 1, 2, 3, ....

Solution:

Given a sequence is:

3, 7, 11, 15, 19, 23, 27, 31, 35

Let us find the difference between terms

7 - 3 = 4

11 - 7 = 4

15 - 11 = 4

19 - 15 = 4

23 - 19 = 4

27 - 23 = 4

31 - 27 = 4

35 - 31 = 4

Thus the difference between terms is constant

Thus the given sequence is arithmetic sequence

An arithmetic sequence is a sequence of numbers such that the difference of any two successive members of the sequence is a constant

The nth term of arithmetic sequence is given by:

$a_n =a_1+(n-1)d$

$a_n$ = the nᵗʰ term in the sequence

$a_1$ = the first term in the sequence

d = the common difference between terms

Here in the given sequence

d = 4

$a_1=3$

Substitute in above formula,

$a_n = 3 + (n-1)(4)\\\\a_n = 3 + 4n - 4\\\\a_n = 4n - 1$

Thus the recursive formula to find nth term of sequence is:

$a_n = 4n - 1 \text{ where } n \geq 1$ and n = 1, 2, 3, ......

8 0

3 years ago