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3 years ago

7 less than a number d

Mathematics

2 answers:

amm18123 years ago

8 0

7>d
hope this help!!!
ask me if you got a question. hahahah

Ksenya-84 [330]3 years ago

7 0

The equation for 7 less than a number d would be d - 7, since whenever it says less THAN, you would take that number and put it to the end of the equation. If it says 7 less a number d, then that would be 7 - d.

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dmitriy555 [2]

Answer:

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Step-by-step explanation:

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3 years ago

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A rectangle is divided into four smaller rectangles whose areas in sq cm are 35, 42, 10, and N, as shown. The length of each sid

Rom4ik [11]

Answer:

The value of N is 12 sq cm.

Step-by-step explanation:

1. Find the greatest common factor of 35 and 42 to find the length (horizontal). The GCF is 7.

2. The horizontal length of the 35 and 42 sq cm is 7, and the heights are 5 and 6 respectively.

3. Moving on tot he 10 sq cm rectangle, since the height of just that one rectangle is and 10/5 is 2, the horizontal length is 2.

4. For n, the horizontal length is 2 and the height is 6. 2 X 6 is 12 sq cm.

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3 years ago

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Use the quadratic formula to solve the equation x^2-7x-6=0

olganol [36]

Answer:

$\frac{7\pm\sqrt{73}} {2}$

Explanation:

We have been given with the quadratic equation $x^2-7x-6=0$

We have general formula to find the roots of a quadratic equation first we find the discriminant with formula

$D=b^{2}-4ac$

and after that to find the variable suppose x we have the formula

$x=\frac{-b\pm\sqrt{D}} {2a}$

And general quadratic equation is

$ax^2+bx+c=0$

On comparing the given quadratic equation with genral quadratic equation we will have values

a=1, b=-7 and c=-6

After substituting these values in the formula we will get

$D=(-7)^2-4(1)(-6)={73}$

After substituting in the formula to find x we will get

$\frac{-(-7)\pm\sqrt{73}} {2}= \frac{7\pm\sqrt{73}} {2}$

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4 years ago

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Sophie [7]

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3 years ago

The initial outlay or cost is $1,000,000 for a four-year project. The respective future cash inflows for years 1, 2, 3 and 4 are

trasher [3.6K]

Answer:

The Payback Period from non discounted cash flows is 2 Years and 8 months

Step-by-step explanation:

With an initial outlay of $1,000,000

and Cash inflows for 4 years consecutively of $500,000 + $300,000 + $300,000 + $300,000

Pay back Period = the Period where Initial Outlay minus Cash Inflows equal Zero

= 1,000,000 - 500,000 (yr 1) - 300,000 (yr 2) - 200,000 (2/3 of Year 3) = 0

Pay back Period therefore is equal to 2 years & 8 months.

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4 years ago