MATHEMATICS MIDDLE SCHOOL

What is the value of |5 - 2x |- 13 /8whenX = 3?
A. -12
B. -6
c. -4
D.4
E 4 2/3

Answers

Answer 1
Answer:

Answer:

Use a calculator

Step-by-step explanation:

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What is the domain and range of the graph?

Answers

Answer:

Domain= how many boxes there are from each circle to the other, and the range is basically the height. In this case, Domain= 8, Range=2

The quotient of 700 and a number??????

Answers

700/n is your answer

7. The sun is at an angle of elevation of 58ยบ. A tree casts a shadow 20 meters long onthe ground. How tall is the tree?

Answers

The height of tree is 32 meter

Solution:

Given that,  The sun is at an angle of elevation of 58 degree

A tree casts a shadow 20 meters long on  the ground

The sun, tree and shadow forms a right angled triangle

The figure is attached below

ABC is  a right angled triangle

AC is the height of tree

AB is the length of shadow

AB = 20 meters

Angle of elevation, angle B = 58 degree

By definition of tan,

tan \theta = (opposite)/(adjacent)

In this right angled triangle ABC,

opposite = AC and adjacent = AB

Therefore,

tan\ 58 = (AC)/(AB)\n\ntan\ 58 = (AC)/(20)\n\n1.6 = (AC)/(20)\n\nAC = 1.6 * 20\n\nAC = 32

Thus height of tree is 32 meter

What is chemical formula

Answers

A chemical formula tells us the number of atoms of each element in a compound. It contains the symbols of the atoms of the elements present in the Compound. Hope that helps.:)

Write a few sentences about different ways to show subtraction for a problem 32-15.

Answers

32-15 = 17
17 + 15 = 32
32-17 = 15
15+17 = 32
i can not understand what do you mean! because 32-15=17 and it does not  have different ways ! :))) 

brandus bought 1/3 pound of ground turkey and 3/4 pound of ground beef to make sausages. how many pounds of meat did he buy.

Answers

to add fractions together multiply each fraction by the denominator of the other
like this:
(1/3) * (4/4) + (3/4) *(3/3) =
(1*4)/(3*4) + (3*3)/(4*3) =
4/12 + 9/12 = 13/12 or 1 + 1/12

The Answer is 1   1/12 . Because 1/3 + 3/4= 4/12+ 9/12 = 13/12 = 1  1/12                                      

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