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Shkiper50 [21]
3 years ago
14

Evaluate -4n2+11 when n =3

Mathematics
2 answers:
Galina-37 [17]3 years ago
8 0

Answer:

so you will insert n as 3

[-4x3x2] +11

-24+11

negative times positive is negative so you will need to substract

=-13

Step-by-step explanation:

tatiyna3 years ago
4 0

Answer:

-13

Step-by-step explanation:

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Anyone mind helping me out?
Igoryamba

Answer:

611 square miles

Step-by-step explanation:

Area of triangle = (1/2)*a*b*sinC (formula when u are not given the height of the triangle, but u are given with the angle.)

= (1/2)*30*47*sin(60°)

= 610.54 square miles (2 d.p)

≈611 square miles (rounded to nearest mile)

:)

4 0
3 years ago
What's the reciprocal of 2 4/7 ?​
Gnom [1K]

Answer:

7/18

Step-by-step explanation:

²\frac{4}{7}=((2*7)+4)/7

2*7=14

14+4=18

18/7⇒7/18

4 0
3 years ago
Pls help it due soon <br> Show workings!
mel-nik [20]

Answer:

A

Step-by-step explanation:

So the triangle rule is that the 2 smaller sides of a triangle have to have a greater sum than the largest side.

I answer a 1+2 has to be greater than 3 and its not therefore A is the answer

3 0
3 years ago
1/2(2g-3)=-4(g+1) show work
brilliants [131]
1g-1.5=-4g-4 (distribute 1/2 and -4 inside their respective parenthesis)
1g=-4g-2.5 (add 1.5 to -4)
5g=-2.5 (add 4g to 1g)
g=-0.5 (divide both sides by 5)
7 0
3 years ago
A tent rental company charges a mandatory $175 setup fee and a $110 hourly rental fee. Which of the following equations can be u
LekaFEV [45]

Answer:

A. c (in $) = 110(8) +175

Step-by-step explanation:

$175 is the starting price so in terms of an equation or an equation of a line it is the "b" or y-intercept.

c is the "y" or the depedent variable to solve for.

$110 is the increasing interval that is multiplied by the known variable, "x".

8 is the second variable, "x" but is known.

7 0
3 years ago
Read 2 more answers
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