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2 years ago

The length is :meters and the width ismeters.

Mathematics

2 answers:

dlinn [17]2 years ago

8 0

Answer:

width = 7

length = 21

Step-by-step explanation:

x + 3x = 56/2

4x = 28

x = 7

k0ka [10]2 years ago

5 0

Answer:

Length = 42, Width = 14

Step-by-step explanation:

Say width = x

3x + x = 56

4x = 56

x = 14

14 x 3 = 42.

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The value, in dollars, of a 1951 bowman willie mays baseball card is given by the function b left parenthesis x right parenthesi

vovikov84 [41]

In more conventional notation, ...
b(x) = -15x² +450x +325 . . . . 0 ≤ x ≤ 24

For 1990, x = 1990 - 1983 = 7
b(7) = -15·7² +450·7 +325 = 2740

The value of the card in 1990 was 2740.

6 0

3 years ago

What percent of 50 is 20?

Papessa [141]

Answer:

40%

Step-by-step explanation:

20/50

= 2/5

= 0/4

= 40%

3 0

2 years ago

Select all the statements that are true.

alexgriva [62]

Answer:

The product of 8x(5x−6) is 40x^2−48x

The product of (x−3)(5x−6) is 5x^2−21x+18

Step-by-step explanation:

Verify each option

Part 1) The product of 8x(5x−6) is 40x^2−48x

we have

$8x(5x-6)$

Applying distributive property

$8x(5x)-8x(6)\\40x^2-48x$

Compare with the given value

$40x^2-48x=40x^2-48x$

therefore

The statement is true

Part 2) The product of −4x(2x2+1) is −8x^3−5x

we have

$-4x(2x^{2}+1)$

Applying distributive property

$-4x(2x^{2})-4x(1)\\-8x^3-4x$

Compare with the given value

$-8x^3-4x \neq -8x^3-5x$

therefore

The statement is not true

Part 3) The product of (x−3)(5x−6) is 5x^2−21x+18

we have

$(x-3)(5x-6)$

Applying distributive property

$x(5x)-x(6)-3(5x)+3(6)\\5x^2-6x-15x+18\\5x^2-21x+18$

Compare with the given value

$5x^2-21x+18=5x^2-21x+18$

therefore

The statement is true

Part 4) The product of (2x+3)(x^2+3x−5) is 2x^3+9x^2+9x−25

we have

$(2x+3)(x^2+3x-5)$

Applying distributive property

$(2x)(x^2+3x-5)+(3)(x^2+3x-5)\\(2x^3+6x^2-10x)+(3x^2+9x-15)\\2x^3+9x^2-x-15$

Compare with the given value

$2x^3+9x^2-x-15 \neq 2x^3+9x^2+9x-25$

therefore

The statement is not true

8 0

3 years ago

Solve this: 16<x+9 or 18≤x+9

soldi70 [24.7K]

1) 16 < x + 9

x + 9 > 16

x > 16 - 9

x > 9

2) 18 ≤ x + 9

x + 9 ≥ 18

x ≥ 18 - 9

x ≥ 9

_______

Hope it helps ⚜

5 0

2 years ago

The probability than an event happens is .42. what is the probability that the event won't happen

Fed [463]

The probability that the event won't happen would be .58.

3 0

3 years ago

The length is :____meters and the width is____meters.

The length is :meters and the width ismeters.