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Nady [450]
3 years ago
10

frac r9+8−13= 9r​ +8" alt="-13 =\dfrac r9+8−13= 9r​ +8" align="absmiddle" class="latex-formula">

Mathematics
2 answers:
Murljashka [212]3 years ago
7 0
Don’t know but it I’ll be here with a big boi 2
just olya [345]3 years ago
4 0

Answer:

r = -189

Step-by-step explanation:

multiply both sides by 9 to get rid of the fraction.

-117=r+72

now subtract 72 from both sides.

-117-72=r

r = -189

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aleksandrvk [35]
2x²-5x+8=0
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looks like the second choice is correct.
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4 years ago
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What are two numbers that add up to 5 and multiply to -24
Ganezh [65]

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-4 and 6

Step-by-step explanation:

6 0
3 years ago
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What is the surface area of the pyramid
Margaret [11]

find the area of the base which is 8*8=64 in^2

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3 years ago
Absolute 10.7 of percent 11
leva [86]

Answer:   = 11.88

This is a 3 step / 4 show workings.

10.7 + Percentage increase = 11%

10.7 + (11% × 10.7) =  10.7 + 11% × 10.7

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111% × 10.7 = 111 ÷ 100 × 10.7

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5 0
3 years ago
Two vectors, X and Y form a right angle. Vector X is 48 inches long and vector Y is 14 inches long. The length of the resultant
krok68 [10]
First Photo - This is the problem drawn into the paper. If you have two vectors and they form a right angle (90°) between them, the Resultant Vector will appear like this, from the right angle.

Obs.:
1 - VR = Resultant Vector;
2 - The angle formed by the VR and the two vectors ISN'T a bisector.

Second Photo - You can move the bottom extremity of the Y vector to the arrow of the X vector and the tips from the Y and VR vectors will meet, forming a Right Triangle, whose the VR is the Hypotenuse (Opposes the right angle / Larger Side).

Now you just put the values in the Pythagorean Theorem:
{a}^{2} = {b}^{2} + {c}^{2}
Where VR is the "a".

{vr}^{2} = {x}^{2} + {y}^{2} \\ {vr}^{2} = {48}^{2} + {14}^{2} \\ {vr}^{2} = 2304 + 196 \\ {vr}^{2} = 2500 \\ vr = \sqrt{2500} \\ vr = 50 \: inches

8 0
4 years ago
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