3 years ago

Adding and Subtracting Polynomials Matching 1

Mathematics

2 answers:

Angelina_Jolie [31]3 years ago

8 0

What’s the question?

miv72 [106K]3 years ago

4 0

Answer:

Step-by-step explanation:

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Y = log2 (x – 4)<br><br> How do I solve this

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Xmin:-10 Xmax:10 and Ymir:-10 Ymax:10

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2 years ago

A student made a sketch of a potential energy diagram to represent an exothermic reaction.

Jlenok [28]

Answer:

This is not correct

Step-by-step explanation: I am just a 6th grader but i know this question, it is not correct because potential energy is mostly staying in one place this would be kenetic energy because it is moving.

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3 years ago

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1/4x - 3-4 > 4<br> PLEASE SHOW THE WORK

enot [183]

X>44

.25(x)-3-4>4
.25(x)-7>4
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2 years ago

What is the value of x in the proportion (x - 1)/5 = (4x + 2)/35?

nirvana33 [79]

Answer:

x=3

Step-by-step explanation:

1. cross multiply to get

5(4x+2)= 35(x-1)

2. distribute

20x+10=35x-35

3. combine like terms

45=15x

4. divide :)

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3 years ago

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Jack looks at a clock tower from a distance and determines that the angle of elevation of the top of the tower is 40°. John, who

zmey [24]

Answer:

18.7939 m

Step-by-step explanation:

-Let x be the distance between John and clock tower.

-Let y be the vertical distance from the eyes of the two men standing to the top of the clock tower.

#Taking the right triangle ACD:

$\Tan \ theta=\frac{Perpendicular \ Height}{Base}\\\\Tan \ 60\textdegree=\frac{y+1.5}{x}\\\\y=x \ Tan \ 60\textdegree -1.5$

#Taking the right triangle ABD:

$\Tan \ theta=\frac{Perpendicular \ Height}{Base}\\\\Tan \ 40\textdegree=\frac{y+1.5}{x+20}\\\\y=(x+20)\ Tan \ 40\textdegree -1.5$

#We equate the two yo solve for x and y;

$(x+20)\ Tan \ 40\textdegree -1.5=x\ Tan \ 60\textdegree -1.5\\\\(x+20)\ Tan \ 40\textdegree=x\ Tan \ 60\textdegree\\\\0.8391x+16.7820=1.7321x\\\\x=18.7939$

Hence, John's distance from the tower's base is 18.7939 m

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2 years ago