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2 years ago

HELP ASAP PLEASE Not understanding and need answers asap

Mathematics

1 answer:

Neko [114]2 years ago

7 0

Answer:

you domb if you dont know the answer B

Step-by-step explanation:

You might be interested in

Which equation would you use to solve the following situation?

Igoryamba

Answer:p=7

Step-by-step explanation:because 4 x 7 =28

4 0

3 years ago

The width of a rectangle is 5 units less than the length. The area of the rectangle is 6 units. What is the width, in units, of

Readme [11.4K]

Answer:

The width of rectangle is 1 unit.

Step-by-step explanation:

Given:

The area of rectangle is 6 units and its width is 5 units less than the length.

So, to find the width of rectangle.

Let the length be $x$ and the width be $x-5$ .

Now, to find the width we put the formula of area of rectangle:

Area = length × width

$6= x\times (x-5)$

$6=x^{2}-5x$

$0=x^{2}-5x-6$

$0=x^{2}-6x+x-6$

$0=x(x-6)+1(x-6)$

$0=(x-6)(x+1)$

On solving equation we get:

$x-6=0, x+1=0$

Therefore, we take the value x=6 as it is positive value:

$x-6=0$

$x=6$

So, the width of rectangle:

Width = $x-5$

= $6-5$

= $1$

Therefore, the width of rectangle is 1 unit.

8 0

2 years ago

Find 2 numbers, if their sum is -11 and their difference is 41

frosja888 [35]

Answer:

15, -26

Step-by-step explanation:

The generic solution to a "sum and difference" problem can be found easily. Let "a" and "b" represent the numbers you seek, and let "s" and "d" represent their sum and difference:

a + b = s

a - b = d

Adding these two equations tells you ...

2a = s + d

a = (s + d)/2 . . . . . . divide by the coefficient of a

You can find "b" several different ways. One way is to subtract the second equation from the first:

2b = s - d

b = (s - d)/2 . . . . . . divide by the coefficient of b

So, the second number can be found from any of ...

b = s - a
b = a - d
b = (s - d)/2

____

For the numbers given here, s=-11, d=41, the two numbers are ...

a = (-11 +41)/2 = 15

b = -11 -15 = -26

The two numbers are 15 and -26.

5 0

2 years ago

One-half (8 x + 4) + one-third (9 minus 3 x)

gogolik [260]

Answer:

3x + 5.

Step-by-step explanation:

factor out 1/6 (1/2 • 1/3)

distribute the 3 from the paranthesis

1/6 (3(8x + 4) + 2(9-3x))

1/6(24x + 12 + 2(9-3x))

distribute 2 through parentheses

1/6(24x+12+18-6x)

collect like terms:

1/6(18x + 12 + 18) > 1/6(18x +30)

factor out 6

1/6 • 6(3x+5)

reduce with GCF (6)

3x + 5

6 0

3 years ago

Read 2 more answers

In 2010, the average price of gasoline in the U.S. was $3.06 per gallon with a standard deviation price per gallon at $0.06 per

igomit [66]

Use Chebyshev's Theorem to 88.89 % the percentage of gasoline stations that had prices within 3 standard deviation of the mean.

What is the Chebyshev's theorem?

Chebyshev's Theorem estimates the minimum proportion of observations that fall within a specified number of standard deviations from the mean.
This theorem applies to a broad range of probability distributions.
Chebyshev's Theorem is also known as Chebyshev's Inequality.

By Chebyshev's inequality, for any distribution at least

$(1 -\frac{1}{k^{2} } )$ * 100 percentage of values falls within k standard deviation about mean .

here k=3 . Apply this to equation and find percentage that falls within 3 standard deviation about mean.

$( 1 - \frac{1}{3^{2} } ) * 100$ = 88.89

So, 88.89 % of gasoline station had price within 3 standard deviation about mean .

Learn more about Chebyshev's inequality

brainly.com/question/13184184

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3 0

2 years ago