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Inessa [10]
3 years ago
9

Combine like terms 10 - 4x + 3y - 17x

Mathematics
2 answers:
Dafna1 [17]3 years ago
6 0

Answer:

-21x + 3y + 10

Oksana_A [137]3 years ago
4 0

Answer:

-21x + 3y + 10

Step-by-step explanation:

10 - 4x + 3y - 17x

= -4x - 17x + 3y + 10

= -21x + 3y + 10

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Hello ^ Please help! Thanks
Ivan
The angle measure of a straight line is 180°, and so if the you know that one angle off of it is (5x)°, then you know that the other section is (180 - 5x)°.

Because it's an isosceles triangle, there are two identical angles, which happen to be the angles with the measure of (5x - 30)° and (180 - 5x)°.
Since they have the same measure, 5x - 30 = 180 - 5x. Solve:

5x-30=180-5x\\\\10x=210\\\\x=\frac{210}{10}=21

Thus, x = 21°.
8 0
3 years ago
Read 2 more answers
Whats the answer in these boxexs
svetoff [14.1K]

Answer: 17 nickels, 8 dimes

Step-by-step explanation:

Since we are given system of equations, we can use elimination method to find n or d. First, let's eliminate n. To do so, we need to make sure they are equal to each other. Then, we would have to multilpy the second equaiton by 0.05.

0.05N+0.1D=1.65

0.05N+0.05D=1.25

Now, we can subtract the 2 equations.

0.05D=0.4

D=8

Now that we know the number of dimes, we can plug it into any of the equations to find nickels.

N+8=25

N=17

There are 17 nickels and 8 dimes.

5 0
2 years ago
Question 13
Mrac [35]

Answer:

71.6 degrees

Step-by-step explanation:

Given the vectors

u= <8,4> v = <9.-9> (5 points)

u*v = (8, 4)*(9, -9)

u*v = 8(9)+(4)(-9)

u*v = 72 - 36

u*v = 36

|u| = √8²+4²

|u| = √64+16

|u| = √80

|v| = √9²+9²

|v|  = √81+81

|v|  = √162

Using the formula

u*v = ||u||v| cos theta

36 = √80(√162)cos theta

36 = √12960 cos theta

cos theta = 36/√12960

cos theta = 36/113.8

cos theta = 0.3162

theta = arccos(0.3162)

theta = 71.56 degrees

Hence the angle between the given vectors to the nearest tenth of a

degree is 71.6 degrees

5 0
2 years ago
Explain due today I will give brainlist and two thanks ,pls help
Advocard [28]

Answer:

0.666666667

Step-by-step explanation:

8 0
1 year ago
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6TH GRADE MATH SHOW WORK PLEASE
Luda [366]
The surface area would be all those areas combined. The shape has been split up into 6 smaller quadrilaterals, so we can easily solve from there. The leftmost one would be 3*4 = 12. The two rectangles beside it can be combined: 4*7 = 28, the one beside it would be: 3*4 = 12, and the last column would be 4*7 = 28. The last thing you need to do is add them together: 12+28+12+28 = 80.

The surface area of the rectangular prism is 80
6 0
3 years ago
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