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4 years ago

Help please any One who can solve this equation? ☺

Mathematics

1 answer:

malfutka [58]4 years ago

6 0

If y varies directly with x, that means they change at proportion rates. We can define their relationship using a constant k.

y = kx

Plug in what we know to find k.

-3 = 5k

k = -3/5

So:

y = -1 * (-3/5)

y = 3/5

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X2−3x−10 ( x - 4 ) ( x + 2 ) ( x - 4 ) ( x + 2 ) ( x - 5 ) ( x + 2 ) ( x - 5 ) ( x + 2 ) ( x + 8 ) ( x - 1 ) ( x + 8 ) ( x - 1 )

loris [4]

Answer:

(x+2)(x-5)

Step-by-step explanation:

Given the expression X^2−3x−10, we are to factorize it;

On factorizing;

= x² - 5x + 2x - 10

= x(x-5) + 2(x - 5)

= (x+2)(x-5)

Hence the factored form of the expression is (x+2)(x-5)

8 0

3 years ago

Tyler cut 40 1/8 inch board into 3 pieces of equal length. He then cut 3 3/4 iches off of each piece to make smaller boards. Wha

Deffense [45]

Answer:

$9\frac{5}{8}\ inches$

Step-by-step explanation:

The original board is 40 1/8 inch and it is cut in 3 pieces of equal length:

New boards = $40\frac{1}{8} : 3 = \frac{321}{8} * \frac{1}{3} = \frac{107}{8}$

And now he cuts again 3 3/4 inches off of each one of the new boards (substracts)

$\frac{107}{8} - 3\frac{3}{4} =\frac{107}{8} -\frac{15}{4} =\frac{107-30}{8} =\frac{77}{8} =9\frac{5}{8} \ inches$

6 0

3 years ago

What fraction of the months of the year have 31 days

Dmitry_Shevchenko [17]

Well 7 out of 12 months have 31 days and if you need to know what the names are they are ........January,March,May,July,August,October, and December hope this helps!

3 0

4 years ago

The perimeter of a rectangular park is 200 feet. The length of the park is 40 feet longer than the width.Find the length of the

Leto [7]

$\green{ \boxed{\sf \: length \: \: = 70 \: \: feet}}$

Step-by-step explanation:

Let assume that,

Wide = x

So,

length = x + 40

Given,

perimeter = 200 feet

We know that,

Perimeter = 2(length + wide)

So,

$200 = 2(x + 40 + x) \\ = > \frac{200}{2} = 2x + 40 \\ = > 2x + 40 = 100 \\ = > 2x = 100 - 40 = 60 \\ = > x = \frac{60}{2} \\ = > x = 30 \: feet$

So length = x + 40 = 30 + 40 = 70 feet

6 0

3 years ago

The quotient of n and 7 is 39

Harrizon [31]

N = 273

273 / 7 = 39
Dividend / divisor = quotient

Work Backwards:

n/7 = 39
n = 39 X 7
n = 273

8 0

3 years ago