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kherson [118]
3 years ago
7

Algebra 1 brainilest if correct and reported if not answered.

Mathematics
1 answer:
svlad2 [7]3 years ago
3 0
The answer is D :) hope this helped
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if the result, when solving a system by either elimination or substitution, is -5 = -5, the solution is:​
Bond [772]

Answer:

Infinitely many solutions

Step-by-step explanation:

When the solved system has the same number on each side, the system has infinite solutions.

3 0
3 years ago
HOW can you find the number of permutations of a set of objects?
Ne4ueva [31]
Hope this handy formula helps!
P(n,r)=\frac{n!}{n-r!}
3 0
3 years ago
Herons formula triangle is​
Amanda [17]

Answer:

Heron's formula (sometimes called Hero's formula), named after Hero of Alexandria, gives the area of a triangle when the length of all three sides are known. Unlike other triangle area formulae, there is no need to calculate angles or other distances in the triangle first.

7 0
3 years ago
The sum of two numbers is 25. Their difference is 9. What are the two numbers?
Lynna [10]
Using x and y as the numbers

x+y=25 -------#1
x-y=9  -------#2

Using addition of #1 and #2
x+y+x-y= 25+9
2x+0y=34
2x=34
x=17

Using the value of x and plugging said value into #1 or #2, we can find y
x=17

x+y=25
17+y=25
y=8

OR

x-y=9
17-y=9
-y=-8
y=8

The numbers are 8 and 17
5 0
4 years ago
Read 2 more answers
Helpppppp math plsssssss
Mekhanik [1.2K]

42+x=90

x=48

48+12=60

x=60



8 0
4 years ago
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