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2 years ago

I need help on this one :)

Mathematics

1 answer:

kvv77 [185]2 years ago

7 0

3x + 60 ° = 180
3x + 60 (-60) = 180 - 60
3x = 120
3x/3 = 120/3
x = 40

Check:
3x + 60 = 180
3(40) + 60 = 180
120 + 60 = 180

The answer is: x = 40

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a train traveled at an average speed of 45 miles per hour for 2 hours and 30 miles per hour for 3 hours. what is the total numbe

Allisa [31]

Distance=rate times time
rate=xmiles per hour
time=y hours

total distance=distance1+distance2
distance1=45mph times 2=90mi
distance2=30mph times 3=90mi
total distance=90mi+90mi=180mi

total is 180mi

7 0

3 years ago

Read 2 more answers

Can someone help me, i cant find the anwser

Aloiza [94]

The range of the given function is represented by {-6,-4,2}.

<h3>Domain and Range</h3>

The domain of a function is the set of input values for which the function is real and defined. In the other words, when you define the domain, you are indicating for which values x the function is real and defined.

While the domain is related to the values of x, the range is related to the possible values of y that the function can have.

Here, you need to replace the given domain values in the equation: f(x)=x-4. The question gives that the domain is represented by: -2 ,0 ,2 .

Thus,

For x=-2, you have:

f(x)= x-4

f(x)= -2-4

f(x)= -6

For x=0, you have:

f(x)= 0-4

f(x)= -4

For x=2, you have:

f(x)= x-4

f(x)= 2-4

f(x)= -2

Therefore, the range of the given function is {-6,-4,2}

Learn more about the range here:

brainly.com/question/10197594

#SPJ1

5 0

1 year ago

A sequence has an initial value (I) of -17 and its fourth term (a4) is 35. What is its general equation? Its 14th term?

aleksley [76]

Answer:

The sequence is an Arthemtic Progression

An=A1+(n-1)d

A1 is first term, An is nth term, n is number of term, and d is common difference

therefore

A4=35, A1= -17

A4=A1+(4-1)d

35= -17+3d

35+17=3d

52=3d

52/3=3d/3

14=d

common diffrence(d)=14

The general solution is given by

An= -17+(n-1)14

An= -17+14n-14

An= -31+14n

An= 14n-31

A14 term, means n=14

From An=A1+(n-1)d

A14= -17+(14-1)14

= -17+(13×14)

= -17+182

= 165.

Therfore, the 14th term is 165.

2. A sequence has a CR of 4/5 and its eighth term (a8) is (393216/3125). What is its general equation? Its 3rd term?

solution

common ratio(r)=4/5

eighth term(G8)=393216/3125

From Gn= G1r^(n-1)

G8 means n=8

G8=G1r^(n-1)

393216/3125=G1(4/5)^(8-1)

393216/3125=G1(4/5)^7

G1=(393216/3125)/(4/5)^7

G1=600

The first term is given by G1=600

Therefore

The General equation is given by

The General equation is given by Gn= 600(4/5)^(n-1)

3rd term (G3)

G3= G1(4/5)^(3-1) where n=3,

=600(4/5)^2

=600(16/25)

=384

Therefore, the 3rd term is given by G3= 384.

I have made some Corrections i messed up somewhere.

7 0

2 years ago

Anyone happen to know the answer?

WINSTONCH [101]

Answer:

6.85 is the answer to this.

Step-by-step explanation:

356*24*60=525,600 minutes in a year

Birth rate

3,600,000/525,600 = 6.85

6 0

2 years ago

I need help on 5 a and b

coldgirl [10]

A: 63.75
B: 95.625 dollars

5 0

2 years ago