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3 years ago

Help me please it’s due by today

Mathematics

1 answer:

anyanavicka [17]3 years ago

4 0

Answer:

Step-by-step explanation:

Lateral SA = area of the 4 triangles

Formula to be used :-

Area (triangle) = 1/2bh

=> 4 x 1/2 x 9 x 12

=> 108 x 2

=> 216 cm²

Total SA = LSA + area of the square

Formula to be used :-

Area (square) = side length x side length

=> 216 + 9 x 9

=> 216 + 81

=> 297 cm²

<u>The correct option is (D).</u>

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lubasha [3.4K]

Answer:

No solution

Step-by-step explanation:

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Which matrix represents the system of equations shown below?<br> 4x - 2y = 8<br> 2x-3y = 12

Serjik [45]

Answer:

4x-2y=8

or, 4x = 8+2y

or x = 8+2y/4-----(eq.1)

2x-3y=12-----(eq.2)

Now,

putting value of eq.1 in eq.2, we get

2x-3y=12

or, (8+2y/4)-3y = 12

or, 8-10y/4=12

or, 8-10y=12×4

or,8-10y=48

or,-10y=48-8

or,y=40/-10

or, y = -4

again,

2x-3y=12

or, 2x-3×-4=12

or, 2x+12=12

or, x=0

In 1st option

4x-2y=8

or,4×0-2×-4=8

or,0+8=8

8=8

2x-3y=12

2×0-3×-4=12

0+12=12

12=12

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3 years ago

At Taco Bell, I made a large purchase of 13 items that cost a total of $28.17. If Chicken Burritos cost $1.89 each and a Cheesy

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Answer:

Number of Chicken Burritos purchased=7

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Step-by-step explanation:

Let x be the number of Chicken Burritos and y be the number of Cheesy Gordita Crunch.

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Total cost of 13 items=$28.17

Cost of each Chicken Burritos=$1.89

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We have to find number of each items purchased.

According to question

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Equation (1) multiply by 2.49 and then subtract equation (2) from (1)

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$x=\frac{4.2}{0.6}$

x=7

Substitute x=7 in equation (1)

$7+y=13$

$y=13-7=6$

Number of Chicken Burritos purchased=7

Number of Cheesy Gordita Crunch purchased=6

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