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Nataly [62]
3 years ago
10

Solve x4 - 17x2 + 16 = 0. Let u = 17x2 x2 -17x2

Mathematics
2 answers:
Nuetrik [128]3 years ago
6 0

Answer:

x =  -1, 1, -4, 4.

Step-by-step explanation:

x^4 - 17x^2 + 16 = 0.

Let u = x^2, then:

u^2 - 17u + 16 = 0

(u - 1)(u - 16) = 0

u = 1, 16.

So x = +/- √u.

x =  -1, 1, -4, 4.

mart [117]3 years ago
4 0

Answer:

The answer is x^2 i just took the test and got it right.

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svp [43]

Answer:

-8x+21

Step-by-step explanation:

Use the distributive property.

8 0
3 years ago
Order these numbers from least to the greatest, 47/10,4.606,4+13/20,4.64​
exis [7]

Answer:

From lowest to highest, the numbers would follow the following order:

1) 4.606, 2) 4.64, 3) 4 + 13/20, 4) 47/10.

Step-by-step explanation:

Given that the numbers 47/10, 4.606, 4 + 13/20 and 4.64 are presented, to order these from lowest to highest, the following calculations must be performed:

47/10 = 4.70

4,606

4 + 13/20 = 4 + 0.65 = 4.65

4.64

Therefore, from lowest to highest, the numbers would follow the following order:

1) 4.606, 2) 4.64, 3) 4 + 13/20, 4) 47/10.

6 0
3 years ago
HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHEEEEEEEEEEEEEEEEEEEEEEELLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP!
11Alexandr11 [23.1K]

Answer:

Hey!

Your answer should be

Step-by-step explanation:

To find the BASE: 8 x 4 = 32cm^2

To find the angled TOP FACE: 10 x 4 = 40 cm^2

To find the TRIANGLES: (6x8)/2 x 2 = 48 cm^2

To find the REAR FACE: 6 x 4 = 24 cm^2

TOTAL: 32 + 40 + 48 + 24

SUFACE AREA: 144cm^2

Hope this helps!

7 0
3 years ago
A trader bought an electical oven for rs 16000 and sold at a profit 20% to a costumer with 13% vat . how much did the costumer p
11Alexandr11 [23.1K]

Step-by-step explanation:

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3 years ago
Juan has grown 2 inches since last summer, but he's still not tall enough to get on the Crazy Carts ride. The minimum height for
Ksenya-84 [330]

Answer:

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Step-by-step explanation:

Minimum height for Crazy cart = 42 inches

x = height last summer

Number if inches grown since last summer = 2

Height now = x + 2 is still not yet up to 42 inches because he is not yet tall enough to get on crazy carts ride.

Representing as an inequality :

x + 2 < 42

8 0
3 years ago
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