3 years ago

Help with this question please

Mathematics

1 answer:

Dennis_Churaev [7]3 years ago

4 0

the answer would be 1/4.

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Help: <img src="https://tex.z-dn.net/?f=1.%5C%20%26x%5E4-61x%5E2%2B900%3D0%20%5C%5C%202.%20%5C%20%26%20x%5E4-25x%5E2%2B144%3

yawa3891 [41]

$\bf{1) \ x^4-61x^2+900=0 }$

Applying the factorization method, for example:

$\bf{ 0=(x^2)^2-61(x^2)+900=(x^2-36)(x^2-25)}$

$\bf{\\ &=(x+6)(x-6)(x+5)(x-5); }$

$\bf{ x_1=6 \quad x_2=-6 \quad \ \ \ x_3=5 \quad x_4=5 }$

$\bf{2) \ x^4-25x^2+144=0 }$

Applying the factorization method:

$\bf{0&=(x^2)^2-25(x^2)+144=(x^2-16)(x^2-9) }$

$\bf{ =(x-4)(x+4)(x-3)(x+3); }$

$\bf{ x_1=4 \quad x_2=-4 \quad x_3=3 \quad x_4=-3 }$

7 0

2 years ago

Given RS = 6, ST = 3, and SL = 4, find SM.

NemiM [27]

A² + b² = c²
3² + 4² = c²
9 + 16 = c²
C² = 25
C = 5
so
SM = 5

7 0

3 years ago

Read 2 more answers

Consider the linear equation: 3(x+1) = 3x + 3

vesna_86 [32]

Answer:

Yes

Step-by-step explanation:

3(5+1)=3(5)+3

15+3=15+3

18=18

7 0

3 years ago

4w^3−8w+12 factor the polynomial 5t^2+20t+50 factor the polynomial

DanielleElmas [232]

4w^3−8w+12 = 4 (w^3 - 2w + 3)

5t^2+20t+50 = 5 (t^2 + 4t + 10)

7 0

4 years ago

2. Next she needs to find her maximum heart rate m by subtracting her age a from 220. Write an

Travka [436]

Answer:

220 - a = m

Step-by-step explanation:

a is her age

7 0

3 years ago