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DiKsa [7]
3 years ago
5

Subtraction with Real Numbers 7-8-(-5)-1=

Mathematics
2 answers:
Cerrena [4.2K]3 years ago
6 0

Answer:

The answer is 3

Step-by-step explanation:

7-8-(-5)-1

-1-(-5)-1

-1 + 5 - 1

4 - 1

3

lianna [129]3 years ago
3 0
Answer:
-7
Explanation:
PEMDAS
7-8-(-5)-1
7-8+5-1
7-13-1
7-14
-7
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How can you prove a triangle is a right triangle?
Darina [25.2K]
Your answer would be option 2. Use the slope formula to see if any sides are perpendicular. This is because a right triangle must have 2 perpendicular sides that form a 90° angle for it to be a right triangle, so finding these would prove it.
I hope this helps!
6 0
3 years ago
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Tony earns $200 per week 5 dollars for every magazine subscription that she sells how much in dollars will she earn in a week in
valina [46]
The equation is 200+ 5s=x
x= how much she makes every week 
4 0
3 years ago
Can you please help me with this problem?
Hoochie [10]
Here you have to find which each variable is, for this you start of picking one equation,

x + 2y + 6z = 4
-3x + 2y - 2 = -4
4x + 2z = 16

depending the equation you pick you multiply that by a certain number that will give you the opposite of one of the other equations,
-1(x + 2y + 6z = 4)
= -x -2y - 6z = -4

With this you add or subtract it with the equation that has the same number or variable, or both,
In this case it will be the equation,
-3x + 2y + 6z = 4
You can use this one or the third equation since both have a positive 2y which will cancel with -2y from the new equation,
-x - 2y - 6z = -4
-3x + 2y -z = -4

= -4x -7z = -8
Now you since you just eliminated the variable (y) you now have 2 variables, and the last equation has only 2 variables, meaning now you find the answer to those to equations,

-4x -7z = -8
4x + 2z = 16

= -5z = 8
Now leave the variable by itself,
z = 8/5
Now you found the variable (z), with this just substitute on one of the equations we used to find (z) so you can find (x), after that substitute those answered to on of the original equations so you can find (y)




6 0
3 years ago
At 6,000 calories a day, a person with genotype X will weigh 285 lbs with much energy and high cholesterol levels. At 3,500 calo
kkurt [141]

Answer: norm of reaction

Step-by-step explanation:

norm of a reaction which is the capacity of a genotype to produce different phenotypes in response to the environment. The group of phenotypic expressions under different environmental conditions. A organism can own all the genetic complements necessary to fully development. However, if there is no suitable nutricion, the development does not occur. The environment only changes the phenotypic characteristics within certain limits ruled by the genotype (norm of reaction). The genotype do not determine a phenotypes, but a amount of possible phenotypes, a norm of reaction. A certain phenotype will  materialize itself depending on the interaction of a certain genotype with the environment.

6 0
3 years ago
(4.3 * 10-3)(2 x 10-2)​
FinnZ [79.3K]

<em>✽ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ✽</em>

<em>➷ </em>(4.3\cdot10-3)(2\cdot 10-2)<em />

<em>➷ </em>= (43 - 3)((2) (10) -2)<em />

<em>➷ </em>= 40 ((2) (10)-2)<em />

<em> ➷ </em>= 40(20 - 2)<em />

<em> ➷ </em>= (40)(18)<em />

<em> ➷ </em>= 720<em />

<em>✽</em>

<em>➶ Hope This Helps You!</em>

<em>➶ Good Luck (:</em>

<em>➶ Have A Great Day ^-^</em>

<em>↬ May ♡</em>

<em />

3 0
3 years ago
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