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3 years ago

I need help please and please write it out

Mathematics

1 answer:

Degger [83]3 years ago

6 0

Step-by-step explanation:

83.10789742

round up and write

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The Martinez family visit the aquarium and saw 483 salt water fish and 358 freshwater fish later that month workers moved 139 fi

VARVARA [1.3K]

Answer:

702

Step-by-step explanation:

The total number of Fish in the aquarium is got by adding up the

Number of Salt Water Fish, and

Number of Fresh water Fish

Number of Salt water Fish = 483

Number of Fres hwater Fish = 358

Total Fish in Aquarium = 483 + 358 = 841

Later, 139 were moved to a new aquarium, the number of fish remaining is 841 MINUS 139. That is:

841 - 139 = 702 fish remaining now

6 0

4 years ago

A figure is shown with the given dimensions. What is the area of the composite figure?

inessss [21]

Answer:

Step-by-step explanation:

Split the shape into 2 so you get a triangle and a rectangle.

Find area of triangle:

1/2 x a x b = 1/2 x 3 x 4

= 6 square feet

Find area of rectangle:

b x h = 6 x 3

= 18

Add both together

18 + 6 = 24

7 0

3 years ago

the second term of a geometric sequence is 18 and the fourth term is 8 find the common ratio . And find the sum of the first 6 t

777dan777 [17]

Answer:

ratio: 2/3
sum: 73 8/9

Step-by-step explanation:

The general term of a geometric sequence is ...

an = a1·r^(n-1)

You have the 2nd and 4th terms, so ...

a2 = a1·r^(2-1) = a1·r

a4 = a1·r^(4-1) = a1·r^3

We can find r from the ratio ...

a4/a2 = (a1·r^3)/(a1·r) = r^2 = 8/18 = 4/9

Then r is ...

r = √(4/9) = 2/3 . . . . the common ratio

The first term is ...

a2 = 18 = a1·(2/3)

a1 = (3/2)·18 = 27

The sum of the first 6 terms is ...

Sn = a1·(r^n -1)/(r -1)

S6 = 27·((2/3)^6 -1)/(2/3 -1)

S6 = 27·(64/729-1)/(2/3-1) = (27)(665)/243 = 73 8/9

The sum of the first 6 terms is 73 8/9.

_____

<em>Check on the sum</em>

The first 6 terms are ...

27, 18, 12, 8, 5 1/3, 3 5/9

Their sum is 73 8/9, as above.

8 0

4 years ago

Shown below is a trapezium, name a line perpendicular to AD.

kramer

Answer:

answer is yesterday was thrusdays

6 0

3 years ago

Solve the system of two linear inequalities graphically.

Sladkaya [172]

Answer:

See attachment

Step-by-step explanation:

Isolate y in the first inequality:

$2x + 4y < -16\\4y < - 16 -2 x\\y < -4 -\frac{1}{2} x\\y < -\frac{x+8}{2} \\$

Now, with both x and y inequalities found, graph it.

7 0

2 years ago

I need help please and please write it out ​

I need help please and please write it out