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mihalych1998 [28]
2 years ago
6

What is the value of z? enter you answer in thr box​

Mathematics
1 answer:
Lunna [17]2 years ago
5 0

Answer:

23

Step-by-step explanation:

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Someone please help me with my homework please please help please help me with my homework
densk [106]
C=2x Pi x R so 2x3.14x17.5 = 109.9
5 0
3 years ago
Solve the equation: Sin2x - Sinx = 0
Viktor [21]
We know that sin2x=2sinxcosx 
(search the net for proof if you wish) 

So the original equation becomes

2sinxcosx-sinx=0
The two terms both have sinx that can be taken out to get: 

sinx(2cosx-1)=0 
This is true if sinx=0 or 2cosx-1=0 , rewritten: cosx=1/2

sinx=0 than x=2kπ
cosx=1/2 than x=π/3+2kπ
where k is an integer

5 0
3 years ago
A family paid ​$30600 as a down payment for a home. If this represents ​%17 of the price of the​ home, find the price of the hom
snow_lady [41]

Answer:

180000

Step-by-step explanation:

30600/17=1800

1800•100=180000

7 0
3 years ago
Read 2 more answers
2x+3y=15<br> x+y=6<br> work out the values of x and y
Anna [14]

Answer:

x=3

y=3

Step-by-step explanation:

x = 6-y

-plug in (6-y) into first equation

2(6-y)+3y = 15

12-2y+3y=15

-2y+3y = 3

y=3

x=6-3

x=3

double check:

(2*3) + (3*3) = 6 + 9 = 15

3 + 3 = 6

6 0
3 years ago
Read 2 more answers
Describe the error in the work shown below.
Katena32 [7]

Answer:

the bottom equation should be 18+30=3(6+10)

Step-by-step explanation:

6(3+10) = 18+60 which equals 78

78 does not equal 18

5 0
2 years ago
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