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2 years ago

Help&EXPLAIN •••••••••••••••••••

Mathematics

1 answer:

TiliK225 [7]2 years ago

5 0

Answer:

68cm^2

Step-by-step explanation:

Well there's not much to explain - the problem statement does it for us.

The surface area is equal to the sum of areas of the walls. There's 2 l*w walls, 2 l*h walls and 2 h*w walls.

SA = 2*l*h + 2*l*w + 2*h*w

SA = 2*4cm*6cm + 2*4cm*1cm + 2*6cm*1cm = 48cm^2 + 8cm^2 + 12cm^2 = 68cm^2

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In Richmond, Chloe ordered $40 worth of sushi. She knew that when the bill came, she would need to pay Richmond sales tax for 5%

maks197457 [2]

Answer:

$50

Step-by-step explanation:

Given data

Cost of sushi= $40

Tax= 5%

Tip= 20%

Let us find the amount of the tax and the tip

Tax

=5/100*40

=0.05*40

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Hence the total amount paid is

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2 years ago

Hello i need help solving the following inequality X (X + 3) ⩽ X (2X + 5) thanks

igor_vitrenko [27]

Answer:

-2 ⩽ x

Step-by-step explanation:

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2 years ago

Maggie owes $500 and will make 4 payments. The first payment is 10% of the original amount, the second payment is 15% of the ori

Likurg_2 [28]

Answer:

last payment is 45% and is $225

Step-by-step explanation:

7 0

2 years ago

Please help me I need help please

MakcuM [25]

Answer:

p = 4

Step-by-step explanation:

Given equation:

$x^2+(p-3)y^2-4x+6y-16=0$

Standard equation of a circle:

$(x-a)^2+(y-b)^2=r^2$

(where $(a,b)$ is the centre of the circle, and $r$ is the radius)

If you expand this equation, you will see that the coefficient of $y^2$ is always one.

Therefore, $p-3=1$

$\implies p=1+3=4$

Additional information

To rewrite the given equation in the standard form:

$\implies x^2+y^2-4x+6y-16=0$

$\implies x^2-4x+y^2+6y=16$

$\implies (x-2)^2-4+(y+3)^2-9=16$

$\implies (x-2)^2+(y+3)^2=16+4+9$

$\implies (x-2)^2+(y+3)^2=29$

So this is a circle with centre (2, -3) and radius √29

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1 year ago

Write the following decimal number in its equivalent fraction form. Show all work for full credit. 0.888

STALIN [3.7K]

0.888 = 888 / 1000

hope that helps

6 0

3 years ago

Read 2 more answers