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Basile [38]
3 years ago
13

I need help, 15 points!

Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
7 0

Answer:

3(a + 5b + 7c) and 2x(2 + 5y + 11z)

Step-by-step explanation:

3a + 15b + 21c

3(a + 5b + 7c)

4x + 10xy + 22xz

2x(2 + 5y + 11z)

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Hello please help help
irinina [24]

9514 1404 393

Answer:

  48°

Step-by-step explanation:

ΔACB is isosceles, so angles A and B have the same measure. The measure of angle C in that triangle is ...

  ∠C = 180° -2(69°) = 42°

Angle C in ΔCDE has the same measure. Angle D is the complement of that:

  ∠D = 90° -42° = 48°

_____

The relations we used are ...

  • the sum of angles in a triangle is 180°
  • base angles of an isosceles triangle are congruent
  • vertical angles are congruent
  • acute angles in a right triangle are complementary
5 0
3 years ago
Concentrate and water are mixed to make juice. Which is the stronger
vladimir1956 [14]

Answer:

As a fraction, A is 3/8 concentrate in final product and B is 4/11.

A is, in other words, 33/88, and B is 36/88 concentrate in the final mixture.

So Mixture B is stronger, slightly.

Note that in order to make the fractions the same denominator, we had to 'expand' each fraction with the denominator of the other fraction. After that, the numbers are really easy to compare.

7 0
3 years ago
Which is cheaper for a 65$ item that costs $7 .25 to ship?
SCORPION-xisa [38]
The best answer is to ship through 7.25$
Thus is cheaper then the coupon
6 0
3 years ago
Read 2 more answers
Add write your answer in simplest form 5 2/3 + 3 3/4
Flura [38]
Nine wholes with five twelves

9 5/12
4 0
3 years ago
Which is the simplified form of this expression? <br><br> (2x+3) (x-6)-2x^2+3x+30
docker41 [41]
-6x + 12

To find this answer, follow these steps:

First, multiply 2x + 3 and x - 6 using either the FOIL method or the box method. This should get you the answer of 2x^2 - 9x - 18

This should now replace the 2x + 3 and x - 6

So with that, you should have this currently:

2x^2 - 9x - 18 - 2x^2 + 3x + 30

Now, combine like terms:

The 2x^2 cancels each other out. After that, combine -9x and 3x to get -6x. Then -18 and 30.

This should leave you with the final answer of -6x + 12

Hope this helps!
8 0
3 years ago
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