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irina1246 [14]
3 years ago
12

Can someone please help me please

Mathematics
2 answers:
dexar [7]3 years ago
5 0
It might be B I might not be right
liraira [26]3 years ago
4 0

Answer:

Letter b

Step-by-step explanation:

because it is

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-5a-6a=121 please help
tigry1 [53]
-11a=121. divide both by -11 and get a=-11
3 0
3 years ago
an air conditioning system can circulate 360, cubic feet of air per minute. how many cubic yards of air can it circulate per min
ahrayia [7]

Alright, lets get started.

3 feet = 1 yard

If we cube both sides of the equation, we will get the conversion into cubic yards

So,

3*3*3 cubic feet = 1 * 1*1 cubic yards

27 cubic feet = 1 cubic yards

So, 1 cubic feet = \frac{1}{27} cubic yards

So, 360 cubic feet = 360 *\frac{1}{27} cubic yards

So, 360 cubic feet = 13.33 cubic yards

13.33 cubic yards of air can it circulate per minute. : Answer

Hope it will help :)



3 0
4 years ago
Read 2 more answers
The following set of points belong to a specific function: {(-3,15)(-2,17), (-1,11), (0,3),(1,-1), (2,5),(3,27)} Based on the se
adelina 88 [10]

Answer:

(a)Degree 3

(b)f(x)=x^3+2x^2-7x+3 .

Step-by-step explanation:

The function represented by the set of points: {(-3,15)(-2,17), (-1,11), (0,3),(1,-1), (2,5),(3,27)} has 2 turning points when plotted on a graph.

(a)Now, we know that the maximum number of turning points of a polynomial function is always one less than the degree of the function.

Therefore, the polynomial has a degree of 3

(b)A cubic function is one in the form f(x)=ax^3+bx^2+cx+d . where d is the y-intercept.

From the set of values, the y-intercept, d=3

Therefore, our polynomial is of the form:

f(x)=ax^3+bx^2+cx+3 .

\text{At } (-3,15), 15=a(-3)^3+b(-3)^2+c(-3)+3 \implies -27a+9b-3c=12\\\text{At } (-2,17), 17=a(-2)^3+b(-2)^2+c(-2)+3 \implies -8a+4b-2c=14\\\text{At } (-1,11), 11=a(-1)^3+b(-1)^2+c(-1)+3 \implies -a+b-c=8

Solving the three resulting equations simultaneously use a calculator), we obtain:

a=1, b=2, c=-7

Therefore, an equation of this function is:

f(x)=x^3+2x^2-7x+3 .

7 0
3 years ago
A landscape architect submitted a design for a triangle shaped flower garden with side lengths of 21ft, 37ft, and 15ft to a cust
ollegr [7]
For a triangle, there is a proven inequality<span> that states that</span><span>, the sum of the lengths of any two sides must be greater than or equal to the length of the remaining side

21 + 37 >= 15
58 >= 15

21 + 15 >= 37
36 >= 37

37 + 15 >= 21
52 >= 21

We can see that the second inequality doesn't comply, thus there is not such triangle.</span>
5 0
3 years ago
Find the missing values of the variables. The diagram is not to scale.
Paul [167]

Answer:

y = 64  and x =99

Step-by-step explanation:

y+116 =180

y=64

and

x+y+72+135=360

x=99

5 0
3 years ago
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