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joja [24]
3 years ago
15

BRAINLIEST + 30PTS

Mathematics
2 answers:
tatiyna3 years ago
6 0

Answer:

x=5, y=3 and xy=8

Step-by-step explanation:

victus00 [196]3 years ago
3 0

Answer:

\frac{ {x}^{2}  {y}^{5} }{xy ^{3} }   \\   \frac{ {x}^{2} }{x}  \times  \frac{ {y}^{5} }{ {y}^{3} }  \\ x ^{2 - 1}  \times  {y}^{5 - 3}  \\  {x}^{1}  \times  {y}^{2 } \\ x {y}^{2}

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Find the value of x. Please help! Thanks.
emmasim [6.3K]

Answer:

\huge\boxed{x=\sqrt{30}}

Step-by-step explanation:

ΔABC and ΔBDC are similar (AAA).

Therefore the corresponding sides are in proportion:

\dfrac{AC}{BC}=\dfrac{BC}{CD}

substitute

AC=7+3=10\\{BC}=x\\CD=3

\dfrac{10}{x}=\dfrac{x}{3}           <em>cross multiply</em>

<em />(10)(3)=(x)(x)\\\\30=x^2\\\\x^2=30\to x=\sqrt{30}<em />

8 0
3 years ago
What is the slope of a line perpendicular to the line whose equation is
Brut [27]

Answer: slope=-1, y-intercept=(0,-4)

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What polynomial is in standard form?
galben [10]

2{x}^{3}  + 4 {x}^{2}  - 7x + 5

It is arranged according to the exponents so this should be t

8 0
3 years ago
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A bracelet is made of 4 red beads and 19 gold beads.A necklace is made of 84 red beads and 13 gold beads.Do the two pieces of je
Arturiano [62]

If you divide 84 red beads and 4 red beads you will get 21 red beads. When you divide 133 gold beads and 19 gold beads you will get 7 gold beads. So the ratio would be 21 red beads/ 7 gold beads.

equation: 84÷ 4= 21 red beads

133÷ 19= 7 gold beads

( If you were to go a bit deeper into the equation, when you simplify this ratio it will bring you to the solution of 3)

5 0
3 years ago
mike drove 20 miles in a 1/2 hour. What is his unit rate in miles per hour? A 20 miles B 30 C 40 D 50
const2013 [10]

The answer would be C. 40 mph

5 0
3 years ago
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