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Ugo [173]
2 years ago
7

Question in pictures for quadratics

Mathematics
1 answer:
Anika [276]2 years ago
5 0
Sheesh run my branliest boxed like a fish
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Study habits and career goals/higher education goals
8 0
2 years ago
abcd is an isosceles trapezoid with legs ab and cd and base bc if the length of ab =-3y+54 the leingth of bc =5y+2 and the leing
Vilka [71]

ANSWER

y = 5

EXPLANATION

The given isosceles tra-pezoid has legs

ab =  - 3y + 54

and

cd = 6y + 9

The base is bc=5y+2.

The length of the legs of the isosceles tra-pezoid are equal.

This implies that,

ab = cd

Thus,

- 3y + 54 = 6y + 9

Group similar terms,

54 - 9 = 6y + 3y

45 = 9y

Divide both sides by 9.

y =  \frac{45}{9}

y = 5

8 0
3 years ago
3. Solve the equation using square roots. If the equation has no real solution, write
noname [10]
3) x² - 121 = 0

x² = 121

x' = +√121

x' = 11

_______________

x'' = - √121

x'' = -11

Solution ⇒ S{-11 ; 11 } or (x-11)(x+11)

4) 4x² + 144 = 0

4x² = -144

x² = -144 / 4

x² = -36

x = √-36

No solution ⇒ S = ∅

5) z²+10z+21 = 0

Δ = 10² - 4(1)(21)

Δ = 100 - 84

Δ = 16

x' = (-10+4) / 2 = -6/2 = -3

x'' = (-10-4) / 2 = -14/2 = -7

Solution ⇒ S{ -7 ; -3} or (x+3)(x+7)
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3 years ago
Solve the equation for y<br><br><br> 4x+7y=28 <br><br> y=
bogdanovich [222]
Let's solve for y.

4x+7y=28

Add -4x to both sides.

4x+7y+−4x=28+−4x

7y=−4x+28

Divide both sides by 7.

7y/7=−4x+28/7

y=−4/7x+4


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Answer:

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Step-by-step explanation:

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