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2 years ago

Pls help if you only know the correct answer!! thanks!! :)

Mathematics

1 answer:

BabaBlast [244]2 years ago

7 0

If the party has 35 guests and each guest is expected to “drop in” there would be around “17.5” guests. I believe that they should order just Fried chicken.
I don’t see the answer choices so I will list different possibilities.

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The law of cosines is used to find the measure of Z.

Shtirlitz [24]

Answer:

C. $Z=51^{\circ}$

Step-by-step explanation:

We have been given a triangle. We are asked to find the measure of angle Z using Law of cosines.

Law of cosines: $c^2=a^2+b^2-2ab\cdot \text{cos}(C)$ , where, a, b and c are sides opposite to angles A, B and C respectively.

Upon substituting our given values in law of cosines, we will get:

$16^2=19^2+18^2-2(19)(18)\cdot \text{cos}(Z)$

$256=361+324-684\cdot \text{cos}(Z)$

$256=685-684\cdot \text{cos}(Z)$

$256-685=685-685-684\cdot \text{cos}(Z)$

$-429=-684\cdot \text{cos}(Z)$

$\frac{-429}{-684}=\frac{-684\cdot \text{cos}(Z)}{-684}$

$0.627192982456=\text{cos}(Z)$

$\text{cos}(Z)=0.627192982456$

Now, we will use inverse cosine or arc-cos to solve for angle Z as:

$Z=\text{cos}^{-1}(0.627192982456)$

$Z=51.1566718^{\circ}$

$Z\approx 51^{\circ}$

Therefore, the measure of angle Z is approximately 51 degrees.

6 0

3 years ago

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The equation of a parabola is 12y=(x-1)^2-48

Novosadov [1.4K]

Vertex = (1,-4)
Focus = (1, -1)
Directix =
y= -7

Hope this helped

7 0

3 years ago

Kelly works two jobs. She usually works at a retail store for 7 hours during the day and is paid $22.22 per hour by the store. I

Ede4ka [16]

Answer:

Hey,

so if she works for seven hours at both jobs then we multiply how much she gets paid per hour times seven or 22.22*7=155.54 and 13.55*7=94.85. Then we add what is underlined, 155.54+94.85= our answer which is 250.39 per day.

Wbob1314 hope it helped

6 0

3 years ago

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Please need help asap ❤️You have placed your money in a bank account with an interest rate of 5.8% compounding annually. After 5

xenn [34]

$6857 was originally kept
Hope it helps

5 0

3 years ago

| 3х – 9| = 24 ??????????????????????????????????

Nadya [2.5K]

Answer:

x= 11

Step-by-step explanation:

3x= 24+9

3x= 33

x= 33/3

x= 11

hope it helps ,pls mark me as brainliest

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3 years ago

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