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Ivahew [28]
4 years ago
15

Which graph represents 4x + 7y < -21

Mathematics
1 answer:
allsm [11]4 years ago
3 0

Answer:

C

Step-by-step explanation:

Since the sign is not \leq, and it is <, then you'd choose the option with the dotted line showing it isn't inclusive.

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What is the rule for the function shown in the table?
lisabon 2012 [21]

Answer:

y = - 3x - 2

Step-by-step explanation:

The function is linear and can be expressed in slope- intercept form

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (- 2, 4) and (x₂, y₂ ) = (- 1, 1) ← 2 ordered pairs from the table

m = \frac{1-4}{-1-(-2)} = \frac{-3}{-1+2} = \frac{-3}{1} = - 3 , then

y = - 3x + c

To find c substitute any ordered pair into the equation

using (0, - 2 ) , then

- 2 = - 3(0) + c = 0 + c ⇒ c = - 2

y = - 3x - 2 ← function rule

8 0
3 years ago
Consider the polynomial function P(x)=x³+42. Find P(4).
wolverine [178]

Answer:

So the value of polynomial for x = 4 will be 106        

Step-by-step explanation:

We have given polynomial P(x)=x^3+42

We have to find the value of P(4)

We have to find the value of polynomial for x = 4

So for finding this value we have to just put x = 4 in polynomial

So P(4) will be P(4)= 4^3+42=106

So the value of polynomial for x = 4 will be 106

So P(4) will be 106

3 0
4 years ago
PPPLLLEEEAAASSSEEEE help ASAP! third time i have tried i need an answer right now!
Katarina [22]

Answer:

x=2(\sqrt{6} -1),x= -2(1+\sqrt{6} )

Step-by-step explanation:

3 0
3 years ago
1/2 divided by 3 = blank/2 x 1/2
cricket20 [7]

Answer: blank=2/3

Step-by-step explanation:

1/2/3+x/2x1/2

solve this then answer

5 0
3 years ago
Can a obtuse triangle also be an equilateral triangle? Explain
valkas [14]
No. An obtuse triangle can not be an equilateral triangle because for a triangle to be equilateral, all three sides have to be the same measure and the same degree of angle (60). Since, an obtuse triangle has an angle greater than 90, the other two sides could be equal, but then you would have an obtuse isosceles triangle, not an equiangular equilateral triangle. Therefore, the obtuse angle in the obtuse triangle will limit the triangle from being an equilateral triangle.
7 0
4 years ago
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