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Lisa [10]
4 years ago
13

Divide x4+6x3+7x2-6x-8 by x+4

Mathematics
1 answer:
erma4kov [3.2K]4 years ago
5 0

Answer:  And i think your answer might b 21 but i dont know which variable                                                                                                                                                          

Step-by-step explanation:

i can give you how to figure it out but i didn't figure the answers out yet but here's the steps if im not mistaken.

do 6 x 3 and 7 x 2and negative 6 and negative 8 which i believe makes the answer positive when there is two negatives anyway multiply those three first. ( 6 x 3 , 7 x 2 , and -8 x -6) - multiply.

Then you add the answers for the three multiplication steps you did plus the 4 , once you do that which i think is 84? then divide by 4.                                            


Im sorry if this didnt help i tried but i hope this does. I struggle with math myself but still tried.

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7. Compare the values of the 3s in the<br> number 5,338.
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Answer:

the first 3 is 10 times the value of the second 3

7 0
2 years ago
Hailey is scuba diving in the ocean. Her boat is anchored 300 feet away at a 30° angle of depression. If her diving partner is 2
victus00 [196]

Answer:

B)313 ft

Step-by-step explanation:

Hello,I think I can help you with this

to solve this you need to find all the measures of the rigth triangle formed by Hailey, the boat, and the point on the surface of the sea just above the head of Hailey

Step 1

define

triangle

Hypotenuse=300 feet

opposite side=y

adjacent side=x

angle of depression =30°

Step 2

find the distances

cos\alpha =\frac{adjancent\ side}{hypotenuse}\\\\hypotenuse*cos\alpha =adjancent\ side\\ so\\x=adjancent\ side=hypotenuse*cos\alpha\\\\x=300\ft*cos 30 \\\\x=259.8076

so,  the point on the surface of the sea just above hailey is 259.8076 ft from the boat

sin\alpha =\frac{opposite\ side}{hypotenuse}\\\\hypotenuse*sin\alpha \\y=opposite\ side\\ so\\y=opposite\ side=hypotenuse*sin\alpha\\\\y=300\ft*sin 30 \\\\y=150

hailey is at a depth of 150 feet

Step 3

now,her partner is 25 feet directly below her,it is

partner's depth is =hailey is at a depth of 150 feet+25

Y=175

he is at the same distance from de boat ( horizontal),because it is the same point in the sea surface.

X=259.80

Step 4

to find  the distance between the partner and the boat we can use  

Pythagoras theorem

adjacentside^{2} +opposite side^{2} =hypotenuse^{2} \\\sqrt[2]{adjacentside^{2} +opposite side^{2}} =Hypotenuse\\Hypotenuse=\sqrt[2]{175^{2} +259.8076^{2}} \\\\Hypotenuse=313.24 ft

so, Hailey's diving partner is 313 ft away from the boat(B)

Have a great day.

3 0
3 years ago
I want to know how they got (1.01125) as answer from the top question? Can someone plz help me just to explain it
faltersainse [42]
Answer:
_______________________
{1 +  (0.045/4) }  = 1.01125
____________________________

What is:  "(0.045) / (4)" ???

Using a calculator:  "(0.045) ÷ (4) = 0.01125 ".
______________________________________
Then:   " 0.01125 + 1 = 1.01125 " .
______________________________________
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2 3/4 = 11/4 <=== written as an improper fraction
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