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2 years ago

The difference between the square roots of a number is 30. what is the answer?

Mathematics

1 answer:

Sveta_85 [38]2 years ago

6 0

Since 30 is not a square root you would use the closest square roots √25 and √36 which makes your answer 5 and 6

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Please help!!!! D:<br><br>(grades 7-8 probability)

dmitriy555 [2]

Answer:

1/4 ch a chance of a car any color

Step-by-step explanation:

if you only have 4 cars and they are different colors, you get 1/4 chance to pick one

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3 years ago

10. In the figure below, ABCD is a square. DEFC, BCGH and AEFB are all

zysi [14]

Answer:

a) As sides of squares are always equal.

So,

BC=CD

2b+CF=a+b

CF= a+b-2b

CF= a-b

b) Area of rectangle CDEF= CDxCF

=(a+b)(a-b)

=(a²-b²)

Hope it helps :-)

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2 years ago

Jennifer has carpet in her square bedroom. She decides to also purchase carpet for her living room which is rectangular in shape

shtirl [24]

Answer/Step-by-step explanation:

Let's highlight the dimensions of the bedroom and living room using the information given in the question:

==>Squared Bedroom dimensions:

Side length = w = x ft

Area = x*x = x²

==>Rectangular living room dimensions:

width = side length of the squared bedroom = x

length = (x + 9) ft

Area = L*W = x*(x+9) = x² + 9x

Now let's match each given expression with what they represent:

==>"the monomial, x, a factor of the expression x² + 9x" represents "the width of the carpet in the living room"

As we have shown in the dimensions of the squared bedroom above.

==>"the binomial, (x + 9), a factor of the expression x² + 9x" represents "the length of the carpet in the living room" as shown above in the dimensions for living room

==>"the second-degree term of the expression x² + 9x" represents "the area of the carpet in the bedroom"

i.e. the 2nd-degree term in the expression is x², which represents the area of the carpet of the given bedroom.

==>"the first-degree term of the expression x2 + 9x" represents "the increase in the area of carpet needed for the living room".

i.e. 1st-degree term in the expression is 9x. And it represents the increase in the area of the carpet for the living room. Area of bedroom is x². Area of carpet needed for living room increased by 9x. Thus, area of carpet needed for living room = x² + 9x

7 0

2 years ago

Which strategy would you use to find 2plus8?explain

nika2105 [10]

it is 10...,,,,....,,,,,,,,,,?,,?????

8 0

3 years ago

Nour drove from the Dead Sea up to Amman, and her altitude increased at a constant rate. When she began driving, her altitude wa

labwork [276]

Answer:

y = - 400 + 700x

Step-by-step explanation:

Nour's altitude increased at a constant rate from the Dead Sea up to Amman.

Initially, her altitude was 400 meters below from the sea level and then she arrived at an altitude was 1000 meters above sea level arrived to Amman, 2 hours later.

So, she moves (400 + 1000) = 1400 meters in 2 hours.

Therefore, her rate of change of altitude is $\frac{1400}{2} = 700$ meters per hour.

Therefore, if y represents Nour's altitude in meters relative to the sea level after x hours then the relationship between the altitude and number of hours is given by

y = - 400 + 700x (Answer)

7 0

2 years ago

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