1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dexar [7]
3 years ago
6

one negative number is 4.5 more than another number. the sum of the squares of these numbers is 46.25. Find both

Mathematics
1 answer:
evablogger [386]3 years ago
8 0

Answer:

y = -6.5 and x = 2

Step-by-step explanation:

Let one negative number be -y and another number be x

We are given that one negative number is 4.5 more than another number

So, -y=x+4.5

We are also given that The sum of the squares of these numbers is 46.25.

So,x^2+(-y)^2=46.25\\x^2+(x+4.5)^2=46.25\\x^2+x^2+20.25+18x=46.25\\2x^2+18x=26.25\\x^2+9x=13.125\\x^2+9x-13.125=0\\

x=-6.5,2

When x = -6.5

-y=x+4.5

-y=-6.5+4.5

-y=-2

y=2

When x = 2

-y=x+4.5

-y=2+4.5

-y=6.5

y=-6.5

So, y = -6.5 and x = 2

You might be interested in
Which equation is y = –3x2 – 12x – 2 rewritten in vertex form?
Andrej [43]
<span>The general equation of a quadratic is expressed as y = ax^2+bx+c. To convert the general equation to vertex form, we need to obtain this form:

(y- k)= a(x - h)^2

This could be done by using completing the square method.

</span><span>y = –3x^2 – 12x – 2
</span><span>y + 2 = –3(x^2 + 4x) 
</span>y + 2 -12 <span>= –3(x^2 + 4x + 4) 
</span>y - 10 = -3(x+2)^2

Therefore, the answer is the first option.
3 0
3 years ago
Read 2 more answers
What is one possible value of 2x
Georgia [21]

Answer:

really good

Step-by-step explanation:

<h2>thanks for your help you<u> with</u><u> that</u><u> do</u><u> not</u><u> have</u><u> a</u><u> copy</u><u> of</u><u> the</u><u> receipt</u><u> for</u><u> your</u><u> time</u><u> to</u><u> help</u><u> you</u><u> with</u><u> the</u></h2>

5 0
2 years ago
You buy 3.18 pounds of apples, 1.25 pounds of pears, and 2.84 pounds of grapes. What is your total bill
algol13

Answer:

$7.27

Step-by-step explanation:

3.18 + 1.25 + 2.84 = 7.27

3 0
2 years ago
A rectangle has a perimeter of 71.8 yards and a height of 3.3 yards. What is the length of the base?
Studentka2010 [4]

The length of the base is 32.6

3.3 + 3.3 = 6.6

Subtract 6.6 from 71.8 : 65.2

Divide that by 2 : 32.6

7 0
3 years ago
Read 2 more answers
Suppose a population contains 80,000 people. All else being equal, a study based on a population sample that includes which of t
Helga [31]
I'd say A. 8000, because you'd get the most answers and the biggest variety in answers for a more accurate sample.
6 0
3 years ago
Read 2 more answers
Other questions:
  • The two-way frequency table represents data from a survey asking mall visitors whether they like seafood, meat, or both. A 4-col
    9·2 answers
  • Which is the tangent to the circle ?
    15·2 answers
  • 450 miles divided by 30.8​
    8·1 answer
  • Identify the pattern rule for this sequence: 20, 80, 40, 160, 80, 320…
    15·2 answers
  • A 5-mile cab ride costs $7.20. A 9-mile cab ride costs $11.60. Find a linear equation that models a relationship between cost c
    10·2 answers
  • For each value f(x) = 2 - 3x and g(x)= l 2- 3x l
    13·1 answer
  • Solve the equation for y 1/3x + y = 4​
    10·1 answer
  • Request edit access
    7·1 answer
  • A machine can make 5 miles of ribbon in an hour. Graph the length of the ribbon the
    9·1 answer
  • Is this positive or negative? ( slopes ) y= -2/3 x - 1
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!