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3 years ago

SOMEBODY PLEASE HELP ASAP PLEASE PLEASE PLEASE WILL GIVE YOU A GIFTCARD OF YOUR CHOICE

Mathematics

2 answers:

AlladinOne [14]3 years ago

8 0

Answer:

what grade are u in

Step-by-step explanation:

algol [13]3 years ago

8 0

Answer: I hope this helps!! It would mean the world to me if i got an Amazon or Xbox giftcard thanks!! :D

Step-by-step explanation:

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Help please thanks!!!

Andreyy89

You already have the right Answer which is b

6 0

3 years ago

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Jennie has 7 tickets for carnival rides. The Ferris wheel costs 4 tickets, The roller coaster costs 6 tickets. the merry-go-roun

algol13

Answer: 6

Step-by-step explanation:

7 - 3 = 4

3 - 4 = 0

0 - 6 = -6

6 0

3 years ago

Which function has exactly one real solution? A. f(x) = -4x2 + 9x B. f(x) = 2x2 + 4x – 5 C. f(x) = 6x2 + 11 D. f(x) = -3x2 + 30x

yarga [219]

Answer:

${ \tt{f(x) = - 4 {x}^{2} + 9x }}$

Step-by-step explanation:

${ \tt{f(x) = x( - 4x + 9)}}$

5 0

3 years ago

Find c. Round to the nearest tenth.

bija089 [108]

Answer:

Step-by-step explanation:

A = 150°

B = 12°

C = 180 - (150 + 12) = 18°

b = 10 cm

Apply the sine rule:

$\frac{b}{sin(B)} = \frac{c}{sin(C)}$

Plug in the values

$\frac{10}{sin(12)} = \frac{c}{sin(18)}$

Multiply both sides by sin(18)

$\frac{10}{sin(12)}*sin(18) = \frac{c}{sin(18)}*sin(18)$

$\frac{10*sin(18)}{sin(12)} = c$

c = 14.9 cm (nearest tenth)

7 0

3 years ago

A certain circuit board consists of two resistors, green and red. The circuit board manufacturer has two huge bins filled with t

Lesechka [4]

Answer:

(a) 0.675

(b) 0.3

Step-by-step explanation:

$P(R) = 90\% = 0.9$ (Probability of functional red)

$P(\sim R) = 90\% = 1 - 0.9 = 0.1$ (Probability of non-functional red)

$P(G) = 75\% = 0.75$ (Probability of functional green)

$P(\sim G) = 1 - P(G) = 1 - 0.75 = 0.25$ (Probability of non-functional green)

(a) The probability the board is functional is the probability that the red and the green resistors are functional.

$P(\text{board is functional}) = P(R\cap G) = P(R) \times P(G) = 0.9\times0.75 = 0.675$

(b) The probability that exactly one of the resistors chosen is functional is the probability that either red is functional and green is not or green is functional and red is not.

$P(\text{exactly one is functional}) = P((R\cap \sim G) \cup (G\cap \sim R))$

$P(\text{exactly one is functional}) = P(R\cap \sim G) + P(G\cap \sim R) = (P(R) \times P(\sim G)) + (P(G) \times P(\sim R))$

$P(\text{exactly one is functional}) = (0.9 \times 0.25) + (0.75 \times 0.1) = 0.225 + 0.075 = 0.3$

6 0

4 years ago

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