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Len [333]
2 years ago
8

Heeelppp please is for today

Mathematics
2 answers:
arsen [322]2 years ago
7 0

Answer:

x = −2 or x = 4.23606797749979 or x = −0.2360679774997898

Step-by-step explanation:

Subtract x^3-2x^2-9x-2 from both sides.

0 − (x3−2x2−9x−2) = x3−2x2−9x−2 − (x3−2x2−9x−2)

−x3+2x2+9x+2=0

Factor left side of equation.

(−x−2)(x2−4x−1)=0

Set factors equal to 0.

−x−2=0 or x2−4x−1=0

butalik [34]2 years ago
4 0
This picture shows how to think and answer.

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inna [77]

Answer:

8 futballs

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softballs 24

Step-by-step explanation:

dos mas del doble (2) de balones de fut = 8x2 = 16, 16+2 = 18

cuatro menos de 5 veces las pelotas de fut = 8x5 = 40, 40-4 = 36

seis mas de la mitad de beis = 36/2 = 18, 18+6 = 24

LISTO

7 0
2 years ago
Find 64.9% of 77. Round to the nearest tenth.
eduard

Answer:

64.9% of 77

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Solve x2 − 8x + 5 = 0 using the completing-the-square method. (2 points)
RoseWind [281]

Answer:

x = 4 +  \sqrt{11},  \:  \: x = 4 -  \sqrt{11}

Step-by-step explanation:

{x}^{2}  -8x + 5 = 0 \\  \\  {x}^{2}  - 8x +  {4}^{2}  =  - 5 +  {4}^{2}  \\  \\  {(x - 4)}^{2}  =  - 5 + 16 \\  \\  {(x - 4)}^{2}  = 11 \\  \\ x - 4 =   \pm \sqrt{11}  \\  \\ x = 4 \pm \sqrt{11}  \\  \\ x = 4 +  \sqrt{11}, \:  \: x = 4 -  \sqrt{11}

8 0
2 years ago
The quotient of nine times a number and seven ?
IRISSAK [1]
9/7n is the answer i am pretty sure
7 0
3 years ago
Isosceles Right Triangle Reflection to prove ASA Congruence
adell [148]

Answer:

Yes they went through rigid motion

Step-by-step explanation:

The original triangle is the same as the one on the left but the only thing that changed was its place(translation) making it a RIGID MOTION

7 0
3 years ago
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