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8090 [49]
3 years ago
13

Given the function f(x) = −2x2 + 4x − 7, find f(−4). −55 −7 9 25

Mathematics
2 answers:
11111nata11111 [884]3 years ago
5 0

-27 is the answer for f (-4).

kompoz [17]3 years ago
3 0

Answer:

-55

on edge

Step-by-step explanation:

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1.A five - layer of cake weighs half a kilogram per layer.In each layer,the cake is decorated with icing which weighs 15g.3 cand
julia-pushkina [17]

Answer:  2.815 kilograms

======================================================

Work Shown:

1 layer = 0.5 kg

5 layers = 5*(0.5 kg) = 2.5 kg

icing = 15 g = 15/1000 = 0.015 kg

1 candle = 100 g = 100/1000 = 0.1 kg

3 candles = 3*(0.1 kg) = 0.3 kg

------------------------

The five layers combine to 2.5 kg. On top of that we have 0.015 kg of icing, and then finally the three candles add 0.3 kg more weight.

The total weight is therefore: 2.5+0.015+0.3 = 2.815 kilograms

3 0
3 years ago
A sweater was on sale at 40% off the regular price. Ella saved 20$ by buying the sweater on sale. What was the regular price of
barxatty [35]

Answer:

the answer is $50 for the full price of the sweater

Step-by-step explanation:

if you know $20 is 40% what is 20% it is $10 and then multiple it by 5 because  20 times 5 is 100 and you get 50

8 0
2 years ago
Which construction is illustrated above?
Leni [432]

Answer:

The construction is a parallel line to a given line  from a point not on the line.

Step-by-step explanation:

For a given figure,

To construct a parallel line

Step 1 : Draw transversal line through any point not on line which is given.

Step 2: Using construction copy an angle, construct same angle formed by transversal line and given line.

Step 3: This is the last step in which when the copy of an angle completed draw a line parallel to the line.

6 0
3 years ago
Read 2 more answers
Help please?? <br><br>Answer:
Sveta_85 [38]
1. Yes, a regular hexagon can be drawn using rotations.
2.To find the answer, first find the number of sides of a hexagon. A hexagon has six sides.
Divide 360 by 6 = 360/6=60 degrees.
So the angle of rotation for a point on the circle for drawing a regular hexagon is 60 degrees.


3 0
2 years ago
Principal: $1000, annual interest rate: 4.8%, time: 2 yr
Anna11 [10]

Answer: $1096

Step-by-step explanation:

$1000+$1000(0.048)(2)

5 0
3 years ago
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