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3 years ago

Please helpppppoooooppppppp

Mathematics

2 answers:

Kaylis [27]3 years ago

8 0

Answer:

3.5 hours of studying to get a 75 on the exam.

Step-by-step explanation:

The y intercept in the graph is 40. This means that the constant in the linear equation is 40.

The slope of the equation is 10 because after the variable x travels one interval, the y travels 10.

To get the hours a student need to get 75 on the exam, we set the equation equal to 75.

75 = 10x + 40 where x = hours studied.

75 - 40 = 10x

x = 35/10

x = 3.5 hours

brilliants [131]3 years ago

3 0

N o o o o o o o o o o o o o o o o o o o o o o o

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Help me plz I will give brainiest

igor_vitrenko [27]

Answer:

Side A = 11

Side B = 16

Side C = 25

I added an image that shows what I did in case you need it.

7 0

3 years ago

the expression 15n + 12n + 100 rersents the total cost in dollars for skis, boots and a lesson for n skiers. simplify the expres

ankoles [38]

Answer:

$316.

Step-by-step explanation:

The terms that have n can be operated:

15n +12n + 100 = 27n +100. Then, we have that

total cost = 27n +100 for n skiers. So, for 8 skiers we have

total cost = 27(8) +100 = 216 + 100 = 316.

Then, the total cost of 8 skiers is $316.

3 0

4 years ago

Read 2 more answers

This is for pre calculus, please help

Harlamova29_29 [7]

Answer:

The correct answer is:

$g(x) = x+1$

Step-by-step explanation:

Given that:

$h(x) = f\circ g(x)= \sqrt[3]{x+3}$

$f(x) = \sqrt[3]{x+2}$

To find:

$g(x) = ?$

Solution:

Let $g(x) = m$

We have

$f\circ g(x)= \sqrt[3]{x+3}\\OR\\f( g(x))= \sqrt[3]{x+3}$ ...... (1)

Now, we have let:

$g(x) = m\\\therefore f(g(x)) = f(m)$

Putting x = in f(x), we get

$f(x) = \sqrt[3]{x+2}\\\Rightarrow f(m) = \sqrt[3]{m+2}$ ....... (2)

Comparing equation (1) and (2):

$\sqrt[3]{x+3} =\sqrt[3]{m+2}$

Taking cubes both sides:

$x+3=m+2\\\Rightarrow m = x+3-2\\\Rightarrow m = x+1$

$\therefore g(x) = x+1$

Hence,

The correct answer is:

$g(x) = x+1$

5 0

3 years ago

F(x) = x3 - 2x2 + x - 2

Yuri [45]

Just use photo math

7 0

3 years ago

What is the area of this trapezoid Enter your answer in the box _ft

JulijaS [17]

Answer:

322 ft squared

Step-by-step explanation:

formula = (a+b)×h

35+11 = 46

46×14 = 644

644÷2= 322

7 0

3 years ago