3 years ago

Factorise 3x squared-13x-10

Mathematics

1 answer:

SIZIF [17.4K]3 years ago

5 0

It cannot be factored

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What is the scale factor of 5mm:1cm

Goryan [66]

<span>
1 cm = 10mm

5 mm : 10mm : :1 : 2

hoped i helped. ^-^
</span>

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4 years ago

3x+4y-3z=4;5x-y+2z=3;x+2y-z=-2 Solving Systems in three variables

Harlamova29_29 [7]

Answer: x = 3, y = 1, z = 2

<u>Step-by-step explanation:</u>

EQ 1: x - y - z = 0

EQ 3:<u> -x + 2y + z = 1 </u>

y = 1

EQ 2: 2x - 3y + 2z = 7 → 1(2x - 3y + 2z = 7) → 2x - 3y + 2z = 7

EQ 3: -x + 2y + z = 1 → -2( -x + 2y + z = 1) → <u>-2x + 4y + 2z = 2</u>

y + 4z = 9

y = 1 ⇒ 1 + 4z = 9

4z = 8

z = 2

Input y = 1 and z = 2 into one of the equations to solve for x:

EQ 1: x - y - z = 0

x - (1) - (2) = 0

x - 3 = 0

x = 3

Check:

EQ 2: 2x - 3y + 2z = 7

2(3) - 3(1) + 2(2) = 7

6 - 3 + 4 = 7

3 + 4 = 7

7 = 7 $\checkmark$

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Svetach [21]

Answer:

the answer is 54pi cm^3

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

The base of a triangle is twice the height of the triangle.

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Answer:

Step-by-step explanation:

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3 years ago