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2 years ago

Can someone help me with this ASAP please I’m being timed !

Mathematics

1 answer:

Ugo [173]2 years ago

8 0

Answer:

I think It's option C

Step-by-step explanation:

But I am not sure It's correct or not

I hope It's helpful

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2. Use the following picture for this question:

Art [367]

Answer:

a. $24\sqrt{3}$ and 41.6

b. 52.1

Step-by-step explanation:

Considering the left side triangle the blue dotted side is the side "opposite" to the angle given and the side 24 is the side that is "adjacent" to the angle given. The trigonometric ratio tan relates opposite to adjacent. Also, let the blue dotted side be y.

<u>Note:</u> the exact value of tan 60 is $\sqrt{3}$

Thus, we can write $Tan(60)=\frac{y}{24}\\y=24*Tan(60)\\y=24*\sqrt{3} \\y=24\sqrt{3}$

Approximate value (rounded to nearest tenth): $24\sqrt{3} =41.6$

Considering the triangle to the right, the side "opposite" to the angle given (53 degrees) is 41.6 (just found in part (a)) and the side "hypotenuse" (side opposite to 90 degree angle) is x. The trigonometric ratio sine relates opposite and hypotenuse.

Thus we can write and solve:

$Sin(53)=\frac{41.6}{x}\\x=\frac{41.6}{Sin(53)}=52.1$

4 0

3 years ago

The dosage for a certain drug calls for 20mg per kg per day and is divided into two doses(1every 12 hours) if a person weighs 19

podryga [215]

Answer:

893.42

Step-by-step explanation:

1kg=2.205pounds

so 20mg is for 2.205pounds

therefore for 197pounds will be 1784.84mg

but the dose is once every 12hrs meaning twice a day so divide 1784.84/2 to get the pounds

4 0

3 years ago

A lawnmower that regularly sells for $150 is on sale for $120. By what percentage was the price decreased?

yanalaym [24]

Answer:

20%

Step-by-step explanation:

Find the difference of both prices.

150 - 120 = 30

Calculate the ratio of the decrease in price to the original price.

30/150 = 0.2

Multiply the decimal by 100 to get your percentage.

0.2(100) = 20

8 0

3 years ago

What inequalities is not true when x = -2

Sholpan [36]

A= -6(-2) < -10
12 < -10
NOT TRUE

B= -2(-2) > -3
4 > -3
TRUE

C= -2/4 < 0
-1/2 < 0
TRUE

D= -4 < (-2)-5
-4 < -7
TRUE

So the answer is A

4 0

3 years ago

How long will it take an account with a 6.7% interest rate, compounded continuously to double?

liraira [26]

2p=pe^0.067t
2=e^0.067t
t=(log(2)/log(e))/0.067
T==10.3 years

7 0

3 years ago