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goldfiish [28.3K]
3 years ago
10

Use the distributive property to write the following expression without parentheses.  

Mathematics
2 answers:
I am Lyosha [343]3 years ago
4 0

Answer:

-12x+12y

Step-by-step explanation:

-\dfrac{3}{5}(20x-20y)=\\\\-\dfrac{3}{5}(20x)+-\dfrac{3}{5}(-20y)=\\\\-12x+12y

Hope this helps!

Salsk061 [2.6K]3 years ago
3 0

Answer:

-12x+12y

Step-by-step explanation:

We have the following expression:

-\frac{3}{5} (20x-20y)

TO remove the parenthesis, we need to multiply each term within them by each term on the outside of the parenthesis. Then, we can simplify our answer..

(-\frac{3}{5} )(20x)-(-\frac{3}{5} )(20y)\\\\-12x+12y

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Us the regression equation, y= 4.39x-6.77, to predict the age of a tree that is 125 cm in diameter
djverab [1.8K]

Answer:

y = 542 years

Step-by-step explanation:

Given that,

The regression equation, y= 4.39x-6.77 is used to predict the age of a tree.

y is age of a tree and x is diameter

Put x = 125 cm

Put the value of x in above equation.

y = 4.39(125)-6.77

=548.75  - 6.77

= 541.98

or

y = 542

So, the tree is 542 years old.

5 0
3 years ago
Find the 8th term in the geometric sequence 5,-15, 45...
Ratling [72]

Answer: 32805

Step-by-step explanation:

The factor between each term is -3, so you have to multiply -3 eight times (-3 to the power of 8), which is 6561. You have to multiply 6561 by 5 to get the answer.

5 0
3 years ago
URGENT! Please and Thanks :)
eimsori [14]
For this case we will define the following:
 A, B: are the values of the triangle angles
 a, b: are the values of the lengths of the sides opposite the angles A, B.
 We then have to use the law of the sine:
 \frac{sinB}{b} = \frac{sinA}{a}
 Clearing the angle B we have:
 sinB = \frac{sinA}{a}*b
 B = arcsin(\frac{sinA}{a}*b)
 Substituting values we have:
 B = arcsin(\frac{sin113}{200}*134)
 B = 38.08
 Answer:
 
the following is true:
 
A. angle B=38.08 degrees 

6 0
3 years ago
Angles of a polygon <br><br>thanks ​
tino4ka555 [31]

Answer:

900 degrees

Step-by-step explanation:

Use the formula for interior angles

Sum = (n - 2) x 180

Sum = (7 - 2) x 180

Sum = 5 x 180

Sum = 900 degrees

If this answer is correct, please make me Brainliest!

3 0
3 years ago
Help please it’s very important that I finish today
Andrew [12]

Answer:

A. Domain=an area of territory owned or controlled by a ruler or government.

B. Range=the area of variation between upper and lower limits on a particular scale.

C. Relation=the way in which two or more concepts, objects, or people are connected; a thing's effect on or relevance to another.

D. Function=an activity or purpose natural to or intended for a person or thing.

never mind sorry didn't know this was math just delete the answer

5 0
3 years ago
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