2 years ago

Nool

Mathematics

1 answer:

larisa [96]2 years ago

4 0

Answer:

Step-by-step explanation:

4x = 60

60/4 = 15

width : 15

length: 45

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faust18 [17]

Which one you need G!?!?

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3 years ago

If b = -3, find<br> answer

Nookie1986 [14]

Answer:

-2

Step-by-step explanation:

$(-3)^2+3(-3)-2\\=9-9-2\\=-2$

6 0

3 years ago

Let a, b, c, and d be non-zero real numbers. If the quadratic equation ax(cx + d) = -b(cx+d) is solved for x, which of the follo

LiRa [457]

Answer:

Option d

Step-by-step explanation:

given that a, b, c, and d be non-zero real numbers.

$ax(cx + d) = -b(cx+d) \\acx^2+x(ad+bc)+bd =0$

we can factorise this equation by grouping

$(acx^2+xad)+)xbc+bd) =0\\ax(cx+d) +b(cx+d) =0\\(ax+b)(cx+d) =0$

Equate each factor to 0 to get

$x=\frac{-b}{a} , \frac{-d}{c}$

Ratio of one solution to another would be

$\frac{-b}{a} / \frac{-d}{c} \\=\frac{ad}{bc}$

So ratio would be ad/bc

Out of the four options given, option d is equal to this

So option d is right

4 0

3 years ago

Distance between the two points -6,8 and -1,-4

Tresset [83]

Answer:

-3,2

Step-by-step explanation:

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3 years ago

Seth traveled 1 mile in 57.1 seconds. About hos fast does Seth travel in miles per hour?

mars1129 [50]

Seth traveled 1mi/57.1s

you need to convert mi/s to mi/h

we need to found how many seconds are in an hour (3,600)

so 3,600/57.1=63.047

63.047mi/h

63mi/h (rounding)

8 0

3 years ago