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Ann [662]
3 years ago
12

NEED IMMEDIATE MATH HELP!!!! WILL MAKE BRAINLIEST!!!

Mathematics
1 answer:
Anastaziya [24]3 years ago
3 0
The ladder is making a right triangle so just use sin, cos, and tan to find either of the unknown angles.
(a) Using sin, you can find the missing angle and come up with the equation sin<span>ø = 9.2/10
</span><span>ø=80 degrees
</span>(b) Using a different triangle where the height of the building is unknown but all the angles are known. You can use cos to find the length of the base of the triangle. 
cos75=x/10
x=9.2 ft
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1 tank of propane holds 5 gallons and will last 12 hours. how many gallons of propane is needed for 240 hours.
MAVERICK [17]

5 gallons        x gallons

------------- = ----------------

12 hours       240 hours


using cross products

5 * 240 = 12 * x

1200 = 12 x

divide each side by 12

1200/12 = 12x/12

100 =x

You will need 100 gallons

8 0
3 years ago
Read 2 more answers
187 is 55% how do you find the answer step by step that way I know how to solve problems like these.
IceJOKER [234]

Answer:

271.5

Step-by-step explanation:

100-55=45

45% of 187

187*45=8415

8415/100=84.15

84.15 is 45% of 187

271.15

5 0
2 years ago
Read 2 more answers
Find x and y. <br><br> pls pls help
Anna [14]

Answer:

x = 65 , y = 64

Step-by-step explanation:

y - 16 and 2y + 4 are same- side interior angles and sum to 180° , that is

y - 16 + 2y + 4 = 180

3y - 12 = 180 ( add 12 to both sides )

3y = 192 ( divide both sides by 3 )

y = 64

then

2y + 4 = 2(64) + 4 = 128 + 4 = 132

the exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

2y + 4 is an exterior angle of the triangle , then

x + 67 = 132 ( subtract 67 from both sides )

x = 65

7 0
1 year ago
Plz help and no spam plz. A large university accepts 60% of the students who apply. Of the students the
mihalych1998 [28]
2,600 students actually enroll.
3 0
2 years ago
Read 2 more answers
Charlie wants to order lunch for his friends hell order 6 sandwiches and a $2 kids meal for his little brother Charlie has $32 h
padilas [110]

Answer:

Charlie spent 5$ per sandwich

Step-by-step explanation:

He ordered 6 sandwiches

6x5 =30

He spent 2$ on kids meal

30+2 = 32$

Hope this helped, if you want please mark branliest it would be appreciated

3 0
3 years ago
Read 2 more answers
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