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vagabundo [1.1K]
3 years ago
12

Help I will be marking brainliest!!! A. 28.8 B. 36 C. 48 D. 38.4

Mathematics
2 answers:
galben [10]3 years ago
5 0

Answer:

It is A (28.8)

Step-by-step explanation:

sdas [7]3 years ago
4 0

Answer:

C. 48 ♡

Step-by-step explanation:

I hope this help you :)

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SURFACE AREA OF RECTANGULAR PRISMS
Sergeeva-Olga [200]

Answer:

Lateral is 196

Step-by-step explanation:

7 cm times 10 cm times 2.8 cm

and for the surface it is length times width

7 0
3 years ago
1+34n<br> Square root 7<br> Need<br> Help with question
pantera1 [17]

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what question is this

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Step-by-step explanation:

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3 years ago
Explain why the graphs of reciprocals of linear functions (except horizontal ones) always have vertical asymptotes,
Naily [24]

Answer:

The reason is because linear functions always have real solutions while some quadratic functions have only imaginary solutions

Step-by-step explanation:

An asymptote of a curve (function) is the line to which the curve is converging or to which the curve to line distance decreases progressively towards zero as the x and y coordinates of points on the line approaches infinity such that the line and its asymptote do not meet.

The reciprocals of linear function f(x) are the number 1 divided by function that is 1/f(x) such that there always exist a value of x for which the function f(x) which is the denominator of the reciprocal equals zero (f(x) = 0) and the value of the reciprocal of the function at that point (y' = 1/(f(x)=0) = 1/0 = ∞) is infinity.

Therefore, because a linear function always has a real solution there always exist a value of x for which the reciprocal of a linear function  approaches infinity that is have a vertical asymptote.

However a quadratic function does not always have a real solution as from the general formula of solving quadratic equations, which are put in the form, a·x² + b·x + c = 0 is  \dfrac{-b \pm \sqrt{b^{2} - 4\cdot a\cdot c}}{2\cdot a}, and when 4·a·c > b² we have;

b² - 4·a·c < 0 = -ve value hence;

√(-ve value) = Imaginary number

Hence the reciprocal of the quadratic function f(x) = a·x² + b·x + c = 0, where 4·a·c > b² does not have a real solution when the function is equal to zero hence the reciprocal of the quadratic function which is 1/(a·x² + b·x + c = 0) has imaginary values, and therefore does not have vertical asymptotes.

6 0
3 years ago
Solve 7m+2n=21 and 10m+4n=-10 with substitution
schepotkina [342]
I hope this helps you



10m+4n= -10


5m+2n= -5


-5m-2n= 5



7m+2n-5m-2n= 21+5


5m=26 m= 26/5


5.26/5+2n= -5


26+2n= -5


2n= -31


n= -31/2
3 0
3 years ago
Find an equation of the line with the following intercepts.
Ronch [10]

Answer:

Step-by-step explanation:

5 0
2 years ago
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