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3 years ago

877.71 rounded to the nearest tenth

Mathematics

2 answers:

Luba_88 [7]3 years ago

8 0

The answer is 877.7. Seriously bro how did you not know that that’s like so simple not trying to hate or anything.

Ierofanga [76]3 years ago

3 0

877.7 is the correct answer!

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PLEASE HELP!!! How many solutions does the system have?

Sholpan [36]

Answer:

Infinitely many.

Step-by-step explanation:

3x + 2y = 4

-6x - 4y = -8

Note that the second equation is obtained from the first by multiplying the first one by -2. Thus the graph of the 2 equations is the same line and there are infinitely many solutions.

4 0

3 years ago

Need now<br><br>find the discriminant of the following equation. 9x^2+12x+4=0

andrey2020 [161]

So to find the discriminant of a quadratic equation, the formula is b² - 4ac with a = x² coefficient, b = x coefficient, and c = constant. In this case, our equation is $12^2-4*9*4$

Firstly, solve the multiplications and the exponents: $144-144$

Next, subtract and we find that our discriminant is 0.

*Additional Info: Since the discriminant is zero, this means that this quadratic equation has 1 real solution.

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3 years ago

(01.04 MC)The elevation of city A is 80 feet below sea level; the elevation of city C is 16 feet below sea level. The elevation

fomenos

A) The expression to represent the elevation in feet of city D is; ¹/₂ × (-16) ft

B) The solution to the expression of the elevation of City D is; -8 fr which is negative because it falls below sea level.

First of all, sea level is at 0 ft.

Thus;

If city A has an elevation of 80 ft below sea level, then;

Elevation of city A = -80 ft

The elevation of city C is 16 feet below sea level. Thus;

Elevation of city C = -16 ft

A) The elevation of city D is ¹/₂ of the elevation of city C. Thus;

Expression for Elevation of city D = ¹/₂ × (-16)

B) Solving the expression for elevation of city D gives;

Elevation of City D = -8 ft

The reason why the answer is negative is because any distance below sea level is considered to be negative and city C which is twice the elevation of city D is negative, and so city D must also have a negative elevation.

Read more about below sea level elevations at; brainly.com/question/14837848

6 0

3 years ago

Show your work please !!!!!!!!! Will mark Brianliest !!!!!!!!!! Anyone please helpppppp !!!!!!!!!!!!

Lana71 [14]

Since it is an isosceles triangle 2 lengths are the Same
To find x
5x-9=2x+12
3x=21
X=7
Now plug it in all the equations
5x-9 and 2x+12 are the shortest and the same in length

3 0

3 years ago

A triangle has side lengths of 7cm, 5c and c cm enter a value to complete the inequality that describes the possible values for

loris [4]

Answer:

sqaure root of 24.

Step-by-step explanation:

If you go by the pythagorean theorem, then what we would do is take the longest length which is 7 and square it. Because the equation is a squared + b squared = c squared. In this equation, 7 is c, and 5 would be b. So in theroy, a would be the root of 24.

4 0

4 years ago