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Veseljchak [2.6K]
3 years ago
7

-3 < n ≤ 1

Mathematics
1 answer:
nadezda [96]3 years ago
8 0
-3\ \textless \ n\leq1 \wedge n\in\mathbb{Z}\\&#10;n\in\{-2,-1,0,1\}\\\\&#10;3p-7\ \textgreater \ 11\\&#10;3p\ \textgreater \ 18\\&#10;p\ \textgreater \ 6&#10;
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Please help me solve this word problem please
leonid [27]

Answer:

it is 69

Step-by-step explanation:

do calculations

8 0
3 years ago
Can someone please help me I really need help please please help me
Len [333]

Answer:

p= -3d-6

Step-by-step explanation:

I think this is right because he's eating 3 pieces each day after which would be -3d and d represents the amount of days, and the -6 represents the 6 pieces of candy he ate on his birthday. Hope this helps!

8 0
3 years ago
Read 2 more answers
Who is farthest from the school
postnew [5]

Using the law of cosines:

The grocery store to the school:

Distance = √(7^2 + 10^2 - 2*7*10*cos(100)

Distance = 13.16 miles


The movie store to the school:

Distance = √(7^2 + 10^2 - 2*7*10*cos(120)

Distance = 14.80 miles


The friend is further away.

7 0
3 years ago
A quadratic function is a function of the form y=ax^2+bx+c where a, b, and c are constants. Given any 3 points in the plane, the
pochemuha

Answer:

The quadratic function whose graph contains these points is y=-x^{2}-2x-2

Step-by-step explanation:

We know that a quadratic function is a function of the form y=ax^{2}+bx+c. The first step is use the 3 points given to write 3 equations to find the values of the constants <em>a</em>,<em>b</em>, and <em>c</em>.  

Substitute the points (0,-2), (-5,-17), and (3,-17) into the general form of a quadratic function.

-2=a*0^{2}+b*0+c\\c=-2

-17=a*-5^{2}+b*-5+c\\c=-25a+5b-17

-17=a*3^{2}+b*3+c\\ c=-9a-3b-17

We can solve these system of equations by substitution

  • Substitute c=-9a-3b-17

-9a-3b-17=25a+5b-17\\-9a-3b-17=-2

  • Isolate a for the first equation

-9a-3b-17=-25a+5b-17\\a=\frac{b}{2}

  • Substitute a=\frac{b}{2} into the second equation

-9\left(-\frac{b}{2}\right)-3b-17=-2

  • Find the value of b

-9\left(-\frac{4b}{17}\right)-3b-17=-2\\ b=-2

  • Find the value of a

a=\frac{b}{2}\\  a=-1

The solutions to the system of equations are:

b=-2,a=-1,c=-2

So the quadratic function whose graph contains these points is

y=-x^{2}-2x-2

As you can corroborate with the graph of this function.

8 0
3 years ago
Any one pls helpp! i dont understand this???
ozzi

Answer:

X= 10, 20, 30, 40, 50, 60

Step-by-step explanation:thats

thats all i know

3 0
3 years ago
Read 2 more answers
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