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Katyanochek1 [597]
3 years ago
10

Four less than the square of a number

Mathematics
1 answer:
matrenka [14]3 years ago
6 0

Answer: x² - 4


<u>Four less than</u> the <u>square of a number</u>

       ↓                                   ↓

(Take away 4)                     x²


Four less than the square of a number = x² - 4

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Simplified what is 5(x+1)
Anuta_ua [19.1K]
5(x + 1)....distribute the 5 thru the parenthesis...that means multiply the 5 by everything in the parenthesis.

5(x + 1) = 5 * x + 5 * 1 = 5x + 5
7 0
3 years ago
Read 2 more answers
Two friends are collecting cards. Frank has 7 more than half the number of cards as his friend. Together they have 42 cards. How
Naddika [18.5K]

Answer:

The number of cards Frank has is 18 and the number of cards his friend has is 24.

Step-by-step explanation:

<u><em>The correct question is </em></u>

Two friends are collecting cards. Frank has 6 more than half the number of cards as his friend. Together they have 42 cards. How many cards does each friend have?

Let

x ----> the number of cards that Frank has

y ----> the number of cards that his friend has

we know that

Together they have 42 cards

x+y=42 ----> equation A

Frank has 6 more than half the number of cards as his friend

x=\frac{y}{2} +6 ---> equation B

Solve the system by substitution    

Substitute equation B in equation A

\frac{y}{2} +6+y=42

solve for y

\frac{3}{2}y=42-6\\\\\frac{3}{2}y=36\\\\y=36(2)/3=24

<em>Find the value of x</em>

x=\frac{24}{2} +6=18

therefore

The number of cards Frank has is 18 and the number of cards his friend has is 24.

7 0
3 years ago
If g(x) = −3x + 4, what is the value of g(−3)?<br> A. 13 <br> B. 5 <br> C. −5 <br> D. -13
Nady [450]
G(-3)=-3(-3)+4= -5
The g(-3)= -5
3 0
3 years ago
Read 2 more answers
Someone please help!!
rewona [7]

Answer:

Option 2: (1,0) is the correct answer

Step-by-step explanation:

Given inequality is:

y>-5x+3

In order to find which point is solution to the given inequality we'll put the point one by one in the inequality. If the point satisfies the inequality, then the point is the solution of the inequality.

Putting (0,3) in inequality

3 > -5(0)+3\\3>0+3\\3>3

Putting (1,0) in inequality

0>-5(1)+3\\0>-5+3\\0>-2

Putting (-3,1) in inequality

1 > -5(-3)+1\\1> 15+1\\1>16

Putting (-1,-2) in inequality

-2>-5(-1)+3\\-2>5+3\\-2>8

The inequality is true for (1,0)

Hence,

Option 2: (1,0) is the correct answer

4 0
3 years ago
A _______________________ is a comparison of two measurements in which the denominator has a value of one unit.
Galina-37 [17]
I think the answer is unit rate.
8 0
4 years ago
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