MATHEMATICS HIGH SCHOOL

1/2 + 3/8
What the answer super easy points

Answers

Answer 1

Answer:

Answer:

7/8

Step-by-step explanation:

convert 1/2 to 4/8 and add to 3/8

Answer 2

Answer:

Answer:

1/2 + 3/8 = 7/8

Step-by-step explanation:

i hope this helps you! :)

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Express on simplest form in terms of i: sqrt-16

Add polynomials

Simplify:

(-5a^3 - 2a^2) + (6a^3+9a^2+8a)

Answers

If you would like to calculate (-5a^3 - 2a^2) + (6a^3 + 9a^2 + 8a), you can do this using the following steps:

(-5a^3 - 2a^2) + (6a^3 + 9a^2 + 8a) = -5a^3 - 2a^2 + 6a^3 + 9a^2 + 8a = a^3 + 7a^2 + 8a

The correct result would be a^3 + 7a^2 + 8a.

Help geometry will give brainliest

Answers

The distance from the owl to the squirrel would be found by using the law of sins/co-sins

Cos (known angle) = adjacent leg / hypotenuse ( distance wanted)

cos(50) = 14 / x

x = 14 / cos50

x = 21.78 feet

The problem doesn't say if the answer should be rounded or not. You may have to round the answer if needed.

The angle of depression is congruent to your angle of elevation (the squirrel's line of sight. These are opposite angles. You use SOH CAH TOA to find the missing information because this forms a right triangle. SO you are really trying to solve for the hypotenuse here.
You are given the "side" opposite the angle. souse the SOH part Sine=opposite/hypotenuse
so when you plug in the information you get this equation:
sin(50)=14/x
divide both sides by sin(50) and you should get
a hypotenuse of approx. 18.3

Please answer as soon as possible

Answers

Answer:

green

Step-by-step explanation:

Answer:

yellow

Step-by-step explanation:

How to solve 9x+5=28
-3x-10y=-26 by Elimination

Answers

so elimination
I assume that you meant to write
9x+5y=28 and not 9x+5=28
so

elimination is basically eliminating values

9x+5y=28
-3x-10y=-26
we can either cancel out the x terms or the y terms, I will cancel out the y terms

9x+5y=28
multipy both sides by 2
18x+10y=56
add to other equation

18x+10y=56
-3x-10y=-26 +
15x+0y=30
15x=30
divide both sides by 15
x=2

subsitute

9x+5y=28
9(2)+5y=28
18+5y=28
subtract 10 from both sides
5y=10
divide both sides by 5
y=2

x=2
y=2

9x + 5 = 28
      - 5   - 5
      9x = 23
   9 9
      x = 2⁵/₉

-3(2⁵/₉) - 10y = -26
    -7²/₃ - 10y = -26
+ 7²/₃    + 7²/₃
-10y = -18¹/₃
   -10 -10
   y = 1⁵/₆
   (x, y) = (2⁵/₉, 1⁵/₆)

How to tell when to use positive or negative symbols when dividing?