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Scorpion4ik [409]
3 years ago
8

Please help i really need it !!!!

Mathematics
1 answer:
Vika [28.1K]3 years ago
4 0
C, i think you forgot an x
(x+11)+(x-7)
x+11+x-7
x+x+4
2x+4
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Whats a quadratic equation that has the roots of 6 and negative 9
Komok [63]

Answer:

x^2-3x-54

Step-by-step explanation:

(x+6)(x-9)     Setup the roots

x^2-9x+6x-54   FOIL out the terms

x^2-3x-54    Add like terms together

5 0
3 years ago
Which answers describe the shape below? Check all that apply.
serg [7]

Answer:

Trapezoid and Quadrilateral

Step-by-step explanation:

Trapezoid because it has four sides that are not equal You may not be familiar with this figure because most trapezoids don't look like this. It is a quadrilateral because it is a figure that has 4 sides.

7 0
1 year ago
Help me please will be appreciated thx
alexandr1967 [171]

Answer:

-6 +8d -2c

Step-by-step explanation:

\frac{-2}{5} (15 -20d +5c) = \frac{-2}{5} \times 15 - \frac{-2}{5}\times20d +\frac{-2}{5}\times5c = -6 + 8d -2c

3 0
2 years ago
What is the value of x
amm1812

Answer:

x=123

Step-by-step explanation:

x is across from the angle that measures 123 degrees. Therefore, they are vertical angles, and are congruent.

x=123

Additionally, 57 and x are on a straight line. This means they are supplementary and add to 180 degrees

57*x=180

Subtract 57 from both sides to get x by itself.

x=123

6 0
3 years ago
Scientists believe that every day the number of viruses that exist (x) will be multiplied by 6. Write an expression to express t
Rasek [7]

Answer:

X*6

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The virus (x) time 6

8 0
3 years ago
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