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3 years ago

Plz help meee 2 more problems and I am done

Mathematics

1 answer:

makkiz [27]3 years ago

7 0

Answer:

Step-by-step explanation:

Figure 1,

EA and EB are the opposite rays.

EC bisects angle FEG.

a). m∠FEC = $\frac{1}{2}(m\angle FEG)$

(2x + 6) = $\frac{1}{2}(40)$

2x + 6 = 20

2x = 14

x = 7

b). ED⊥AB

Therefore, m∠AED = 90°

m∠AED = 11y + 13 = 90°

11y = 90 - 13

11y = 77

y = 7

Figure 2,

NC bisects ∠WNB,

Therefore, ∠WNC ≅ ∠CNB

m∠WNC = m∠CNB

3v - 4 = 2v + 6

3v - 2v = 4 + 6

v = 10

Therefore, m∠WNC = x = (3v - 4)

x = 3(10) - 10

= 30 - 10

x = 20

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This is a picture of a cube and the net for the cube.

Nataliya [291]

Answer:

1196 mm^2

Step-by-step explanation:

That's really well described. All in all you have 6 squares all laid out flat. Each square has a side of 14 mm.

The area of 1 square = 14mm * 14mm = 196 mm^2

The area of 6 squares = 6 * 196 mm^2 = 1176 mm^2

3 0

3 years ago

In 2004, the world's fastest knitter was able to knit 225 stitches in 3 min. How long would she take to knit a scarf that was 20

maw [93]

Answer: She would take 51 minutes and 12 seconds

Step-by-step explanation: The world's fastest knitter was able to achieve 225 stitches in 3 minutes. This can be broken down into stitches per minute or even per second. For every minute the number of stitches made can be derived as;

Number per minute = Total stitches / Time

Number per minute = 225/3

Number per minute = 75

Also, number per second = 75/60

Number per second = 1.25

The above calculations show that the knitter was able to make exactly 1.25 stitches per second.

She eventually knitted a scarf that was 20 cm by 120 cm (1.2 metres equals 120 centimetres). This means the scarf had a total area of

Area = L x W

Area = 120 x 20

Area = 2400

She also used yarn that resulted in 1.6 stitches per centimetre. The total area of the scarf has been derived as 2400 square centimetres. Therefore the total number of stitches used for the entire scarf is derived as;

Total stitches = Area x stitches per square cm

Total stitches = 2400 x 1.6

Total stitches = 3840

Having earlier calculated her work rate as 1.25 stitches per second, knitting 3840 stitches would take the following amount of time;

Time taken = Total Stitches / Stitch per second

Time taken = 3840/1.25

Time taken = 3072

Therefore she took 3,072 seconds. Converting this into minutes results in (60 seconds equals 1 minute)

Time in minutes = 3072/60

Time in minutes = 51.2 minutes

Also the fraction 0.2 can be converted into the appropriate unit (that is seconds) as follows;

Conversion rate = 0.2 x 60

Conversion rate = 12

Hence the fastest knitter was able to knit a scarf measuring 20 cm by 1.2 m in exactly 51 minutes and 12 seconds

6 0

3 years ago

HELP FAST 10 POints ............

Pepsi [2]

Answer:

-2

Step-by-step explanation:

X-intercept is when the y-value is 0, and according to the table when y is 0 x is -2.

5 0

2 years ago

Read 2 more answers

The price of cupcakes is $7 more than the price of a cake, which is d dollars.what does the expression d+7 represent?

bixtya [17]

Answer:

The price of the cupcakes

Step-by-step explanation:

The expression represents the price of the cupcakes. D represents the dollar amount. If you were to do d-7 then you would get the price of the cake but since it's d+7 it would be the cupcakes

4 0

3 years ago

The system of equation y=-2x+3 and y=x is graphed.what is the solution to the system of equations

zloy xaker [14]

Answer:

(x, y) = (1, 1)

Step-by-step explanation:

Using the second equation to substitute for y in the first equation, we have ...

x = -2x +3

3x = 3 . . . . . . . add 2x

x = 1 . . . . . . . . .divide by 3

y = x = 1

The solution is (x, y) = (1, 1).

_____

If you have the graph, you can read the solution from it as the coordinates of the point where the lines cross.

4 0

4 years ago