1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Irina18 [472]
3 years ago
10

PLEASE HELP!! WILL GIVE BRAINIEST!!! Please solve #7 and #8.

Mathematics
2 answers:
lawyer [7]3 years ago
8 0
7)
slope = (1+3)/(-1+10) = 4/9

y = mx + b
1 = 4/9(-1) + b
b = 1 + 4/9
b = 13/9
equation
y = 4/9x + 13/9

answer is D.y = 4/9x + 13/9

8)
y = 3x - 3
perpendicular so slope = -1/3

passing thru (-7, 9)
equation
y - 9 = -1/3(x +7)

answer is D. y - 9 = -1/3(x +7)
sukhopar [10]3 years ago
3 0
The answer to 7 is:y = (4/9)x + (13/9). 
The answer to 8 is B, I think.
You might be interested in
A librarian has a set of ten different books, including four different books about Abraham Lincoln. The librarian wants to put t
Darya [45]

Answer:

120960

Step-by-step explanation:

Given that a  librarian has a set of ten different books, including four different books about Abraham Lincoln.

The librarian wants to put the ten books on a shelf with the four Lincoln books next to each other, somewhere on the shelf among the other six different books.

First arrnage the 6 other books in the shelf.  

This can be done in                                        6! ways

Now arrange the 4 books of Lincoln      

This can be done in                                        4! ways

Now we have 7 places to insert Lincoln books including two corners and in between.

Thus this can be done in 7 ways

Total no of ways = 6!(4!)(7) = 120960

3 0
3 years ago
A 50-fluid ounce bottle of laundry detergent washes 32 loads of laundry. A 100-fluid ounce bottle washes 60 loads of laundry. Ar
Alex

Answer:

I think that the answer in NO

Step-by-step explanation:

7 0
3 years ago
Martin deposits $700 into a savings account that gains interest at a rate of 5.5% annually. If he waits 7 years to withdraw the
Travka [436]

。☆✼★ ━━━━━━━━━━━━━━  ☾  

Use the multiplier 1.055

final = original x multiplier^n

where 'n' is the number of years

Sub the values in

final = 700 x 1.055^7

final = 1018.27

Subtract the values:

1018.27 - 700 = 318.27

Thus, he earns more than $275

He earns $43.27 more

Have A Nice Day ❤    

Stay Brainly! ヅ    

- Ally ✧    

。☆✼★ ━━━━━━━━━━━━━━  ☾

4 0
3 years ago
What is the volume of the cube shown?
viktelen [127]
It’s 11 24/64 i did this too
3 0
2 years ago
When a person is breathing normally the amount of air in their lawns varies sinusoidally. When full Karen’s lungs hold 2.8 L of
makkiz [27]

Answer:

A(t) = 2.2\sin \frac{(t - 2)\pi }{6} + 0.6

Step-by-step explanation:

Let the function of quantity in the lung of air be A(t)

So A(t) \alpha \sin (\frac{t - \alpha }{k} )

so, A(t) = Amax sin t + b

A(t) = 2.8t⇒ max

A(t) = 0.6t ⇒ min

max value of A(t) occur when sin(t) = 1

and min value of A(t) = 0

So b = 0.6

and A(max) = 2.2

A(t) = 2.2\sin \frac{(t)}{k} + 0.6

at t = 2 sec volume of a is 0.6

So function reduce to

A(t) = 2.2\sin \frac{(t - 2)}{k} + 0.6

and t = 5 max value of volume is represent

so,

\sin \frac{t - \alpha }{k} = 1

\frac{t - 2}{k} = \frac{\pi }{2} when t = 5

\frac{6}{\pi } = k

so the equation becomes

A(t) = 2.2\sin \frac{(t - 2)\pi }{6} + 0.6

7 0
3 years ago
Other questions:
  • MAKE SURE TO SHOW WORK<br> solve for c:<br> a=7b+8c+9d-10
    7·1 answer
  • Evaluate the expression when a = 3.
    10·2 answers
  • What does the line y=k-1/4a represent in y=a(x-h)^2+k, the standard form of equation for a parabola?
    6·2 answers
  • What is the equation in point slope form of the line passing through (-2,-5) and (2,3)
    6·2 answers
  • Which mixed number is represented by the shaded<br> area? 2 2/5, 2 3/5, 2 2/3, 2 3/2?
    9·1 answer
  • How do you solve: negative eight is less than or equal to 8x
    8·2 answers
  • in a total of $580,800 last year. If they served an average of 200 customers each day over the 363 days that the deli was open,
    6·2 answers
  • Find the surface area of the cylinder and round to the nearest tenth and its recommended that you use pie or 3.14 also the radiu
    11·2 answers
  • PLEASE HELP I WILL MARK BRAINLIST
    13·2 answers
  • The volume of a cube that is 6 units on an edge in exponential form
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!