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snow_tiger [21]
3 years ago
15

Help me pleasee i need to pass this pleazz

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
5 0
For the first, the initial value is found by finding y when x=0
When x=0
y=4 so the initial value is 4, making your answer
B. 4


For the second one take any two points and do y2-y1/x2-x1
We'll use points 0,0 and 1,3
3-0= 3
1-0=1
So the equation is 3/1x and there's no y intercept
So your answer is
D. y=3x



The speed of the motor boat is 62mph
So your answer is
A.62 miles per hour



The fixed amount is the same as the y intercept, so when x is 0
Y is 8
So your answer is B.$8
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Which is an equation of a line that has a slope of -1/3 and passes through the point (-5, 2)?
kramer

Answer:

y= -⅓x +⅓

Step-by-step explanation:

The equation of a line is usually written in the form of y=mx+c, where m is the gradient and c is the y-intercept.

This form is also known as the point-slope form.

Since the slope is given to be -⅓, m= -⅓.

y= -⅓x +c

To find the value of c, substitute a pair of coordinates into the equation.

When x= -5, y=2,

2= -⅓(-5) +c

2 =  \frac{5}{3}  + c \\ c = 2 -  \frac{5}{3}  \\ c =  \frac{1}{3}

Thus, the equation of the line is y= -⅓x +⅓.

7 0
3 years ago
A car rental agency has 150 cars. The owner finds that at a price of $48 per day, he can rent all the cars. For each $2 increase
hram777 [196]
Given that for each <span>$2 increase in price, the demand is less and 4 fewer cars are rented.

Let x be the number of $2 increases in price, then the revenue from renting cars is given by
(48 + 2x) \times (150 - 4x)=7,200+108x-8x^2.

Also, given that f</span><span>or each car that is rented, there are routine maintenance costs of $5 per day, then the total cost of renting cars is given by
5(150-4x)=750-20x

Profit is given by revenue - cost.
Thus, the profit from renting cars is given by
</span><span>(7,200+108x-8x^2)-(750-20x)=6,450+128x-8x^2

For maximum profit, the differentiation of the profit function equals zero.
i.e.
</span><span>\frac{d}{dx} (6,450+128x-8x^2)=0 \\  \\ 128-16x=0 \\  \\ x= \frac{128}{16} =8

The price of renting a car is given by 48 + 2x = 48 + 2(8) = 48 + 16 = 64.

Therefore, the </span><span>rental charge will maximize profit is $64.</span>
3 0
3 years ago
Which is greater 4 ft 7 inches or 56 inches
jok3333 [9.3K]
1 ft = 12 in.
4 ft = 4 * 1 ft = 4 * 12 in. = 48 in.

4 ft 7 in. = 48 in. + 7 in. = 55 in.

4 ft 7 in. < 56 in.
8 0
3 years ago
Read 2 more answers
Which exspression is equivalent to :
dlinn [17]

Answer:

C

Step-by-step explanation:

4 0
3 years ago
What is 60*4= Tens= Tens=
rusak2 [61]
To do multiplication, what you must do is multiply each number from right to left and add.
 For example
 60 * 4
 4 * 0 = 0
 6 * 4 = 24
 The result is
 240
 answer
 60 * 4 = 240
3 0
3 years ago
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