MATHEMATICS COLLEGE

I need help with this! thanks​
I need help with this! thanks​ - 1

Answers

Answer 1
Answer:

Answer:

it should be about 6. try measuring the the 3 line with paper or something then put it on the other line

Step-by-step explanation:

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There are 24 boys for every 36 girls
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A plane leaves the airport in galisteo and flies 170 km at 68 degrees east of north; then it changes direction to fly 230 km at 36 degrees south of east, after which it makes an immediate emergency landing in a pasture. When the airport sends out a rescue crew, in which direction and how far should this crew fly to go directly to this plane?

Answers

Answer:

4.68° south east 317.36 km

Step-by-step explanation:

We can find the angle between the two distances (vectors) because according to the diagram, we can draw two right triangles between them.

The complement of the 36 degree angle is 54 (90-36=54), and the complement of the 68 angle is 22, (90-68=22) the sum of 22 and 54 is 76. So the angle between the two distances is 76.

Then we apply the cosine law

b^(2) =a^(2) +c^(2) -2*a*c*cosB\n \nb^(2) =230^(2) +170^(2) -2*230*170*cos(76)\n\nb=\sqrt{230^(2) +170^(2) -2*230*170*cos(76)} \n\nb=317.36 km

then we apply the sin law

(sin(C))/(c) =(sin(B))/(b) \n\nsin(C)=c*(sin(B))/(b)\n\nsin(C)=170*(sin(76))/(317.36)\n\nsin(C)=0.52\n\narcsin(0.52)=C=31.32\n\n

and because in any triangle, the sum of the inside angles is equal to 180

180=76+31.32+68+y\n\ny=180-76-31.32-68\n\ny=4.68^(o)

180= 76+C+(68+Y)

y=180-76-C-68

So the emergency plane has to travel 317.36 km, 4.68° southeast.

They taught me like i was supposed to learn this in kindergarten so im posting it here

Answers

Answer:

rewrite as improper fraction

then rewrite as multiplication

next multiply and put a non simplified answer

finally put a simplified answer including the correct sign

Step-by-step explanation:

You got this!

Greatest comment factor of 14^3 and 13^4

Answers

Answer:

14^3 = 2,744. Common factors are 1,2,4,7,8,14,28,49,56...

13^4 = 2,197. Common factors are 1, 13, 169, and 2197.

Imari spent half her weekly allowance playing mini-golf. To earn more money, her parents let her wash the car for $4. If she ended up with $12 how much is her weekly allowance? (Prove Your Answer)

Answers

Answer:

$16

Step-by-step explanation:

She spends half of her weekly allowance.

She earns $4.

12-4=8.

8 is half of what she originally had. 8 times two is 16, her weekly allowance

Answer:

$16

Step-by-step explanation:

let x=Imari's allowance

12-4=1/2x

1/2x=8

x=16

at the same time a 15 foot pole casts a 7.5 foot shadow a nearby tree casts an 11 foot shadow how tall is the tree​

Answers

answer: 22

15/7.5 = x/11

cross multiply

7.5x = 165

divide by 7.5 on both sides to get the x alone

7.5x/7.5 = 165/7.5

x = 22

the tree is 22 feet

sorry if it’s wrong

ASAPP PLEASEESolve the following equation algebraically:
x2 = 20
a.4.47
b. -3.97, 3.97
c. -10, 10
d. -4.47, 4.47

Answers

Answer: if using the quadratic formula it is D :)

hope this helps

Step-by-step explanation:
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