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2 years ago

A coral reef grows 0.15m every week. How much does it grow in 11 weeks?

Mathematics

1 answer:

masya89 [10]2 years ago

6 0

Multiply 0.15 by 11. It grows 1.65 meters by 11 weeks

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Twice the difference of a number and 3 is at most 27

kozerog [31]

Twice the difference of a number and 3 is at most 27

2*(n-3) <=27

to solve

distribute

2n -6 <=27

add 6 to each side

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divide by 2

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n<= 16 1/2

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2 years ago

PLEASE HELP TIMED TEST What is the value of x in the matrix equation below?

Ksivusya [100]

Answer:

x = 1

Step-by-step explanation:

Given the matrix;

$-2\left[\begin{array}{ccc}x&-1\\3&5\end{array}\right] + \left[\begin{array}{ccc}3&8\\-1&6\end{array}\right] = \left[\begin{array}{ccc}x&10\\-7&-4\end{array}\right]$

Converting to equations

From the first row of each matrices

-2x + 3 = x

Collect the like terms

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x = -3/-3

x = 1

Hence the value of x is 1

7 0

2 years ago

A slice is made perpendicular to the base of a right rectangular pyramid as shown.

Katena32 [7]

To find the area of a triangle, you will times height by base and divide by then divide by two. In this case the height is 22 and the base is 10. 22 times 10 is 220. You then would divided 220 by two, making your answer 110 cm squared.

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2 years ago

An electrician charges $75 for a house visit $50 an hour for service. What is the independent variable and what is the dependent

Neporo4naja [7]

Answer:

See the explanation below

Step-by-step explanation:

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2 years ago

Question: