if there are 1,254 males born and 1,462 females what's the probability the next baby born will be a boy

allochka39001 [22]

Answer: a) 1:1

they are even. if it was 1:2 or 2:1 one of them on the graph would be taller but that are both at the same number

4 0

2 years ago

Read 2 more answers

50 points please give step by step instruction

fenix001 [56]

Answer:

 x = 90, 199.5, 270, 340.5 degrees

Step-by-step explanation:

cos2x + 2sinx = sin^2x

Change cos2x to 1 - 2sin^2x:

1 - 2sin^2x + 2 sinx = sin^2x

Shift the terms to make it a quadratic equation:

3 sin^2x - 2sinx - 1 = 0

Factorise the quadratic equation:

(sinx - 1)(3sinx + 1) = 0

sin x = 1 or sin x = -1/3

Solve for sin x = 1:

From graph of sin x, x = 90 and 270 degrees when sin x = 1.

x = 90, 270 degrees

Solve for sin x = -1/3

Sin x = -1/3

Basic angle = sin inverse (1/3)

= 19.471 degrees

Since sin x < 0, x is in the 3rd or 4th quadrant

x = 180 + 19.471, 360 - 19.471

x = 199.5, 340.5

Hence, x = 90, 199.5, 270, 340.5 degrees

[Sorry if I am wrong :( ]

8 0

4 years ago

A restaurant sells a coffee refill mug for 8.7. Each refill cost $1.35. Last month, Antonio spent $41.15 on a mug and refills. W

pishuonlain [190]

Answer:

8.7 + 1.35x = 41.15

Step-by-step explanation:

The mug costs $8.7 and he only bought one. He spent $41.15 so you subtract the \cost of the mug, you divide it by 1.35 to get your answer.

3 0

3 years ago

Suppose that there were a negative correlation between the variables a and b.

konstantin123 [22]

Answer:GRGGRHTHH CHICKEN STRIPS ARE 4 AND 6 CHICKEN NUGGETS

Step-by-step explanation:

6 0

3 years ago

Michele is 52 inches tall her father is 6 feet 3 inches tall exactly how many inches taller is Michele,s father than Michele

Stella [2.4K]

52 inches = 4 foot 3 so Michele's father is 2 feet taller than Michele

4 0

3 years ago