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Irina-Kira [14]
2 years ago
12

How do the 3s in 7.315 and 893.5 compare?

Mathematics
2 answers:
mash [69]2 years ago
7 0

Answer:

1/10 the value is 100% right!

Step-by-step explanation:

Naya [18.7K]2 years ago
3 0

Answer:

1/10 i took the quiz and this was righ

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Find the product. -1/4y(2y^3 - 8)
Marina86 [1]
<span>-1/4y(2y^3 - 8)
= -1/2 y^4 + 2 y</span>
8 0
3 years ago
(2x-y=24)4<br> 3x+4y=36 <br> Solve for x
dangina [55]

Answer:

x = 420/11

Step-by-step explanation:

4 0
2 years ago
I need help asap:
lisov135 [29]

Answer:

79.4° to the nearest tenth of a degree

Step-by-step explanation:

You are trying to find the angle opposite the side of length 27.

Let the length of that  side be c and a and b be the lengths of the other two sides and let C be the measure of the angle you are looking for

Using the law of cosines

c = \sqrt{a^{2}  + b^{2}  - 2abcos C}

27 = \sqrt{19^{2}  + 23^{2} - 2(19)(23)cosC}

27^{2}  = 19^{2}  + 23^{2}  - 2(19)(23)cosC

729 = 361 + 529 - 874cosC

729 = 890 - 874cosC

-161 = -874cosC

-161/-874 = cosC

.1842105.... = cosC

C = arccos .1842105.... = 79.4° to the nearest tenth of a degree

5 0
3 years ago
4|w − 5| = 4
anastassius [24]

Answer:

   w = 9 or  w = 1

Step-by-step explanation:

4|w − 5| = 4

Divide both sides by 4

w - 5 = 4                         w - 5 = -4

   + 5    + 5                          + 5     + 5

     w = 9                             w = 1

7 0
3 years ago
What is the equation of a line that is parallel to the line 2x + 5y = 10 and passes through the point (–5, 1)? Check all that ap
Bond [772]

So the right options are:

y=-\frac{2}{5}x-1

2x+5y = -5

y-1=-\frac{2}{5}(x+5)

Further explanation:

Given equation of line is:

2x+5y=10

We have to convert it into point-slope form

2x+5y=10\\5y=-2x+10\\Dividing\ both\ sides\ by\ 5\\y=-\frac{2}{5}x+\frac{10}{5}\\y=-\frac{2}{5}x+2

The co-efficient of x is the slope of the line

So,

m= -\frac{2}{5}

As the required line is parallel to given line, it will also have same slope.

Let m1 be the slope of required line

Then the line will be:

y=m_1x+b

Putting the value of slope

y=\frac{2}{5}x+b

Putting (-5,1) in the equation to find the value of b

1=-\frac{2}{5}(-5)+b\\1=2+b\\b=1-2\\b=-1

Putting the values of slope and b in equation

y=-\frac{2}{5}x-1

Multiplying the whole equation by 5 will give us:

5y = -2x-5

2x+5y = -5

Another form of equation of line is Point-slope form

y-y_1=m(x-x_1)

Putting the values of slope and point in the equation, we get

y-1=-\frac{2}{5}(x+5)

So the right options are:

y=-\frac{2}{5}x-1

2x+5y = -5

y-1=-\frac{2}{5}(x+5)

Keywords: Point-Slope form, Parallel lines

Learn more about point slope form at:

  • brainly.com/question/4464845
  • brainly.com/question/4522984

#LearnwithBrainly

4 0
2 years ago
Read 2 more answers
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