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ladessa [460]
3 years ago
8

What is the value of the expression x + (–y) when x = –3.8 and y = 1.7?

Mathematics
1 answer:
agasfer [191]3 years ago
6 0
-3.8 + 1.7 is just like 3.8 - 1.7 just adding a negative sign (-) to it. So, -3.8 + 1.7 = -2.1

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PLS help me Order four and seven tenths repeating, negative four and eight ninths, 490%, and −4.9 from least to greatest.
Digiron [165]

The order from least to greatest negative four and seven tenths repeating, negative four and eight ninths, 490%, and −4.9 from least to greatest is; option A

  • −4.9,
  • negative four and eight ninths
  • four and seven tenths repeating
  • 490%,

<h3>Ascending order</h3>

four and seven tenths repeating

= 4.77777777

negative four and eight ninths

= -4 8/9

= -4.888888888888888

490%

= 490/100

= 4.9

−4.9

Rearranging from least to greatest (ascending order)

  • -4.9
  • -4.888888888888888
  • 4.77777777
  • 4.9

Learn more about ascending order;

brainly.com/question/12783355

#SPJ1

6 0
2 years ago
P l e a s e h e l p p p p !!!
Mandarinka [93]

Answer:

This would be the last option I think, sorry if it's wrong.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What is the value of x in the equation 4x+8y=40 when y = 0.8
fgiga [73]

When y=0.8

4x +8(0.8) =40

-> 4x +6.4 =40

-> 4x = 33.4

-> x=33.4/4

-> x=8.35

Hope it helps...

Regards;

Leukonov/Olegion.

8 0
3 years ago
What is 2,789 to the nearest ten
klemol [59]
Hey luv!
2,789 rounded to the nearest ten would be
2,789.0

:)

You just moved one decimal
6 0
3 years ago
The shortest side of an isosceles triangle is 2x - 3 inches long. the longer sides are 6 inches longer than the shortest side. t
Zolol [24]
Side 1 = short side = 2x-3
side 2 = longer side = (short side) + 6 = (2x-3)+6 = 2x+3
side 3 = side 2 = 2x+3

Side 2 and side 3 are the longer two congruent sides

Add up the three sides and set them equal to the given perimeter of 33. Solve for x

(side1)+(side2)+(side3) = perimeter
(2x-3)+(2x+3)+(2x+3) = 33
(2x+2x+2x) + (-3+3+3) = 33
6x+3 = 33
6x+3-3 = 33-3
6x = 30
6x/6 = 30/6
x = 5

If x = 5, then the longer sides are 2*x+3 = 2*5+3 = 10+3 = 13 inches each
(note: the short side is 2*x-3=2*5-3=10-3 = 7 inches)

Answer: 13 inches
8 0
4 years ago
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