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kicyunya [14]
3 years ago
9

Use the reference angles to find the exact value of the expression cot -11 pi/6. Do not use a calculator

Mathematics
1 answer:
laiz [17]3 years ago
7 0

Answer:

\sqrt{3}

Step-by-step explanation:

cot(-11pi/6)=cot(-pi-5pi/6)= -cot(5pi/6)=cot(pi/6)=\sqrt{3}≈1.73

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Write the expression in complete factored form. p(b + 9) - (b + 9) =
kvasek [131]

Answer:

(p-1)(b+9)

Step-by-step explanation: Both terms are a(b+9), but one term has a=p and the other is -1. So add them and get the answer

8 0
3 years ago
The SAT mathematics scores in the state of Florida for this year are approximately normally distributed with a mean of 500 and a
creativ13 [48]
99.7%

This is because the likelihood of a point being within 2 SDs of the mean is 99.7%. 
7 0
3 years ago
Sally was walking to Ocean Front Housing Complex, In miles, how far is her distance?
Vanyuwa [196]

Answer:

Sally is 10 miles

The coordinate ofthe deli is (1, -1)

Step-by-step explanation:

✍️Coordinate of Sally = (-3, 2)

Coordinate of Ocean Front = (5, -4)

The distance of Sally to Ocean Front Housing Complex = the distance between point (-3, 2) and (5, -4).

Use the distance formula, d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}, to calculate the distance between (-3, 2) and (5, -4):

d = \sqrt{(5 -(-3))^2 + (-4 - 2)^2}

d = \sqrt{(8)^2 + (-6)^2}

d = \sqrt{64 + 36}

d = \sqrt{100} = 10

✅The distance of Sally is 10 miles

✍️the coordinate of Deli would be half the distance between Sally and Ocean Front.

Therefore, use the midpoint formula to calculate the coordinate of the midpoint between Sally (-3, 2) and Ocean Front (5, -4).

Midpoint of (-3, 2) and (5, -4).

M(\frac{x_1 + x_2}{2}, \frac{y_1 + y_2}{2})

Plug in the values

M(\frac{-3 + 5}{2}, \frac{2 +(-4)}{2})

M(\frac{2}{2}, \frac{-2}{2})

M(1, -1)

✅The coordinate ofthe deli is (1, -1)

8 0
3 years ago
HELP PLZZ Select the correct answer.
stira [4]

Answer:

none

Step-by-step explanation:

There is not a given angle side angle or a side angle side (no two angles and no two sides) so no to the first two.

HL includes two given side, which one must be the hypotenuse, and a right angle so no to that one.

6 0
3 years ago
Assume the probability of having a boy or a girl is the same. What is the probability a family has three boys?
almond37 [142]
The probability of having a boy: 1/2

1/2(1/2)(1/2)=1/8

The probability of a family having three boys is 1/8.

Hope this helps!
3 0
3 years ago
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