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Katyanochek1 [597]
3 years ago
14

*need help asap!*

Mathematics
1 answer:
Sonbull [250]3 years ago
4 0

Answer:

They are simplified in hopes of finding like terms so we can add or subtract them.

When multiplying or dividing we can multiply or divide the numbers under the radicals before simplifying

Step-by-step explanation:

√8 and √32 are not like terms, so we can't simply add or subtract them.  We first want to reduce them down as much as possible...

√8 + √32  

   √8 = (√4)(√2) = 2√2

       √32 = (√16)(√2) = 4√2

So √8 + √32 is the same as 2√2 + 4√2  

These are now like terms since they share a common number under the radical sign.  

2√2 + 4√2 = 6√2

Multiplying:   (√2)(√2) = √4 = 2

Dividing:  (√16)/(√4) = √4 = 2

                or   (√16)/(√4) = 4/2 = 2

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(0.3d-1.5)/3 1/3=0.84:7/15
Anika [276]

Answer:

  d = 25

Step-by-step explanation:

Perhaps you want to solve for d:

  (0.3d -1.5)/(3 1/3) = 0.84/(7/15)

Change the division by a fraction to multiplication by its inverse.

  (0.3d -1.5)·(3/10) = (0.84)·(15/7)

  0.09d -0.45 = 1.8 . . . . . . . . . . . . simplify

  d - 5 = 20 . . . . . . . . . . . . . . . . . . divide by 0.09

 d = 25 . . . . . . . . . . . . . . . . . . . . . add 5

_____

Grouping symbols help show what is being divided by what. Especially where mixed numbers are involved, parentheses help show that the number 3 1/3 is not supposed to be interpreted as the product of 3 and 1/3.

4 0
3 years ago
What value of x makes the 2 triangles congruent by SAS? Find the length of FE
Ksju [112]

Answer:

x = 4

FE = 8

Step-by-step explanation:

Congruent means equal. Notice how both F and C equal 30 degrees while line AC and line DF are both equal to 9 inches. This means we can equal line CB to line FE to find the value of x:

2x = x + 4

Isolate variable x by subtracting both sides by x:

2x - x = x - x + 4

x = 4

Check your work:

2(4) = 4 + 4

8 = 8

Correct

7 0
3 years ago
I need help for problem 10
PIT_PIT [208]
240 is the correct answer I think. First you multiply 6x10=60 then multiply 60x2 that equals 240.
7 0
3 years ago
The weekly production cost C of manufacturing x watches is given by the formula C = 6000 + 3x, where the variable C is in dollar
Irina18 [472]

Answer:

therefore, to produce 1000 watches , it would cost 9000 dollars.

Price : 9 dollars a watch

Step-by-step explanation:

C=6000 + 3x

what is the cost of producing 1000 watches?

first do this

C= (1000)= 6000 + 3(1000)

C= (1000)= 6000 +3000

C= 9000

7 0
3 years ago
Composite Figures Question 5.<br> A. 28 m<br> B. 44 m<br> C. 22 m<br> D. 192 m
seropon [69]

Answer:

the answer is 22

Step-by-step explanation:

the answer is 22

7 0
3 years ago
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