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Svetradugi [14.3K]
3 years ago
7

bob pays $20 to have the internet installed and $15 a month for service. how much will bob pay for 1 year of internet use? a.$18

0 b.$200 c.$240 d.$420
Mathematics
2 answers:
Genrish500 [490]3 years ago
7 0
I think it's B.)200 dollars hopefully it helps or at least is right
Lilit [14]3 years ago
6 0
The answer is b. On year is 12 months. 15 multiplied by 12 is 180, and adding on the 20 dollars he paid initially, your answer is 200.
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Mr smith is expanding the size of hos garden. his new garden will be 3 times as long, and two times as wide as his orginal garde
Alecsey [184]
New length = 3 x 30 = 90 feet
New Width = 2 x 11 = 22 feet
Perimeter of the new garden = 90 + 90 + 22  + 22 = 224 feet
7 0
3 years ago
The equation of the line that passes through the points (-2,0) and (0,2) can be expressed in the form y=mx+b. What is the value
liq [111]
----------------------------------------------------------------
Find Slope:
----------------------------------------------------------------
\text {Slope = }  \dfrac{2 - 0}{0-(-2)}

\text {Slope = }  1

----------------------------------------------------------------
Substitute Slope = 1 into y = mx + b:
----------------------------------------------------------------
y = x + b

----------------------------------------------------------------
Find y-intercept:
----------------------------------------------------------------
At point (0, 2),

2 = 0 + b
b = 2

----------------------------------------------------------------
Substitute b = 2 into y = x + b:
----------------------------------------------------------------
y = x + 2

----------------------------------------------------------------
Expressed in the form of y = mx + b:
----------------------------------------------------------------
y = x + 2

----------------------------------------------------------------
Value of m + b :
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1 + 2 = 3

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Answer: The value of m+b is 3.
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6 0
3 years ago
Find the largest interval which includes x = 0 for which the given initial-value problem has a unique solution. (Enter your answ
Ivan

Answer:

(-\infty,3)

Step-by-step explanation:

We are given that

(x-3)y''+4y=x

y''+\frac{4}{x-3}y=\frac{x}{x-3}

y(0)=0

y'(0)=1

By comparing with

y''+p(x)y'+q(x)y=g(x)

We get

p(x)=\frac{4}{x-3}

g(x)=\frac{x}{x-3}

q(x)=0

p(x),q(x) and g(x) are continuous for all real values of x except 3.

Interval on which p(x),q(x) and g(x) are continuous

(-\infty,3)and (3,\infty)

By unique existence theorem

Largest interval which contains 0=(-\infty,3)

Hence, the larges interval on which includes x=0 for which given initial value problem has unique solution=(-\infty,3)

7 0
3 years ago
The sides of a rectangle are x cm and 4 cm. Its<br>perimeter is 46 cm. Determine the value of x.​
Vedmedyk [2.9K]

Answer:

x = 19 cm

Step-by-step explanation:

perimeter = 46 = 2(x + 4)

2x + 8 = 46

2x = 38

x = 19

4 0
3 years ago
Solve the following equation by combining like terms:<br> x+x+2+3x-6= 31<br> X=
Vesnalui [34]

Answer:

X= 7

Step-by-step explanation:

x+x+2+3x-6=31 Combine x's

2x+2+3x-6=31 Continue to combine x's

5x+2-6=31  Combine whole numbers

5x-4=31  Add 4 to both sides

5x=35 Divide by 5

x=7

4 0
3 years ago
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