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Mashutka [201]
3 years ago
6

Help on this question 18 pls

Mathematics
1 answer:
boyakko [2]3 years ago
3 0
Either it is C or D or E.
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5231+4331=9562 3696+6939
7nadin3 [17]

Answer:

10635

Step-by-step explanation:

Honestly, I dunno. I just added it.

5 0
3 years ago
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If r + t = 10 and -r + t = 4, What is the value of 5r + 8t?
ikadub [295]

Answer:

71

Step-by-step explanation:

Start solving using simultaneous equation,From there, we have r to be 3 and t to be 7

7 0
3 years ago
In quadrilateral ABCD, AD ∥ BC. Quadrilateral A B C D is shown. Sides A D and B C are parallel. The length of A D is 3 x + 7 and
oksian1 [2.3K]

Answer:

  31 units

Step-by-step explanation:

When the figure is a parallelogram, opposite sides have the same measure:

  AD = BC

  3x +7 = 5x -9 . . . . . . substitute given expressions

  16 = 2x . . . . . . . . . . . add 9-3x

  8 = x . . . . . . . . . . . . . divide by 2

Use this value of x in the expression for AD to find its required length:

  AD = 3(8) +7 = 24 +7

  AD = 31 . . . . units

The length of segment AD must be 31 units for ABCD to be a parallelogram.

8 0
3 years ago
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How to get x when x^3-x^2+x-1=0?
Art [367]

Answer:

x = 1 or x = ± i

Step-by-step explanation:

Note the sum of the coefficients

1 - 1 + 1 - 1 = 0

This indicates that x = 1 is a root, thus (x - 1) is a factor

Using long division or synthetic division, then

x³ - x² + x - 1 = (x - 1)(x² + 1), thus

(x - 1)(x² + 1) = 0

Equate each factor to zero and solve for x

x - 1 = 0 ⇒ x = 1

x² + 1 = 0 ⇒ x² = - 1 ⇒ x = ± \sqrt{-1} = ± i

6 0
3 years ago
find the ninth term of the geometric sequence, given the first term and the common ratio: a1=1, r=-1/3
olasank [31]

Answer:

0.0001524

Please Mark Brainliest If This Helped!

3 0
2 years ago
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