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Talja [164]
3 years ago
14

HELP PLSSSS 8^2 b - 3 when b = 3

Mathematics
1 answer:
zheka24 [161]3 years ago
3 0

Answer:

0

Step-by-step explanation:

If b is 3 then the quiz can be rewritten as

8²3-3

8²0

64×0=0

Well it's just a trial

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Find the zeros of the quadratic equation-<br> v(5v-7)=0
vovangra [49]

Answer:

Step-by-step explanation:

v(5v-7)=0

We multiply parentheses

5v^2-7v=0

a = 5; b = -7; c = 0;

Δ = b2-4ac

Δ = -72-4·5·0

Δ = 49

The delta value is higher than zero, so the equation has two solutions

We use following formulas to calculate our solutions:

v1 = −b−√Δ/2a

v2 = -b+√Δ/2a

√Δ = √49 = 7

v1 = -(−7)−7/2*5 = 0/10 = 0

v2 = -(−7)+7/2*5 = 14/10 =  1+2/5

3 0
3 years ago
A group of 2n people, consisting of n men and n women, are to be independently distributed among m rooms. Each woman chooses roo
vfiekz [6]

Step-by-step explanation:

Assume that

X_i = \left \{ {{1, If , Ith, room, has,exactly, 1,man, and , 1,woman } \atop {0, othewise} \right.

hence,

x = x_1 + x_2+....+x_m

now,

E(x) = E(x_1+x_2+---+x_m)\\\\E(x)=E(x_1)+E(x_2)+---+E(x_m)

attached below is the complete solution

7 0
3 years ago
Im reading the book Elie Wiesel
Amiraneli [1.4K]

Answer: 1. tells the dentist that he doesn't feel well and that he will come back next time.

2. get sent to the crematory

3.Because the boy was young and beautiful.

hopes this helps

8 0
3 years ago
1. If Jose says that 75% of his class of 28 students
kondaur [170]
C. 21 kids ride the bus
5 0
3 years ago
Read 2 more answers
Need help with these
ella [17]

Answer:

  1. C
  2. Not clear
  3. A
  4. A
  5. C

Step-by-step explanation:

1) 2x + 246 = 360° (Vertically opposite and angle at a point)

2x = 360 - 246

2x = 114°

x = 114 / 2

x = 57°

3) Since <ABD is a right angle (i.e its sum is 90°)

<CBD = 90° - 75° = 15°

5) <1 = <2 (Vertically opposite angles are equal)

12x + 3 = 10x + 15

12x - 10x = 15 - 3

2x = 12

x = 6

Therefore,

<2 = 10(6) + 15

<2 = 75°

4 0
3 years ago
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