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zzz [600]
3 years ago
14

WHATS X AND Y?? Y = 3x+ 4 and 2x – 4y = -6

Mathematics
1 answer:
Georgia [21]3 years ago
4 0

Answer:

X=-1, y=1

Step-by-step explanation:

Substitute value of y in first equation (3x+4) with y of second equation.

2x-4(3x+4)=-6

2x-12x-16=-6

-10x=10x=-1

solve for y but putting -1 for x value in either equation

y=3(-1)+4

y=-3+4

y=1

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Alexander Graham Bell, the inventor of the telephone, also invented a kite made out of "cells' shaped like triangular pyramids.
IceJOKER [234]

Answer:

The fabric needed for each pyramid cell of the kite will have an area of 173 cm².

Step-by-step explanation:

Area of a face of the triangular pyramids = (1/2)(b)(h)

where

b = base of a triangle of the triangular pyramid = 20 cm

h = height of each triangle of the triangular pyramids = 17.3 cm

Area = (1/2)(20)(17.3) = 173 cm²

Just like the image presented with the question, each face of the pyramid that has a cell of fabric has only one, So, the fabric needed for each pyramid cell of the kite will have an area of 173 cm².

Hope this Helps!!!

5 0
3 years ago
A golf ball of diameter 1.68 inches rolls a distance of 4m in a straight line. How many times does the ball. completely? (1 inch
marin [14]

Answer: 29.9

Step-by-step explanation:

We know that

1 m = 100 cm

4 m = 400 cm

Circumference of ball

= 3.14 x

= 13.37 cm

400 / 13.37

4 0
3 years ago
If two balanced die are rolled, the possible outcomes can be represented as follows. (1, 1) (2, 1) (3, 1) (4, 1) (5, 1) (6, 1) (
m_a_m_a [10]

3 of the 36 outcomes have a sum of 10. The probability is 3/36 = 1/12

6 0
3 years ago
Read 2 more answers
Rewrite the fraction in simplest form.<br> 24/36
Delicious77 [7]
24:2 = 12, 12:2 = 6, 6:3= 2
36:2 = 18, 18:2 = 9, 9:3= 3
So the answer is 2/3
make sure you divide the top and bottom number with the same number :D
5 0
4 years ago
A 2.25 units<br> C 5 units<br> B 4 units<br> 0 16 units
S_A_V [24]

Answer:

B

Step-by-step explanation:

If 2 chords of a circle intersect, then the product of the parts of one chord is equal to the product of the parts of the other chord , that is

BW × WD = AW × WC ( substitute values )

6 BW = 3 × 8 = 24 ( divide both sides by 6 )

BW = 4 units

5 0
3 years ago
Read 2 more answers
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