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andre [41]
3 years ago
7

PLEASE HELP ME ( I ADDED A PHOTO)

Mathematics
2 answers:
Reil [10]3 years ago
7 0

Answer:

um 32-28 so 12.5  i think for the first one the second one is 25%

i am so sorry if i get it wrong

Step-by-step explanation:

Nostrana [21]3 years ago
4 0

Answer:

Which one do you need help with

Step-by-step explanation:

Im not just taking points I will still help you in the comments.

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Perform the indicated operation and simplify the result.
Finger [1]

Answer:

7/ (3a-1)

Step-by-step explanation:

3a^2 -13a +4        28+7a

------------------ * --------------------

9a^2 -6a+1         a^2 -16

Factor

(3a-1)(a-4)           7(4+a)

------------------ * --------------------

(3a-1) (3a-1)        (a-4)(a+4)

Cancel like terms

1                    7

------------------ * --------------------

(3a-1)                  1

Leaving

7/ (3a-1)

3 0
3 years ago
I need help with finding the circumference of a circle.
lozanna [386]

Answer:

circumference of circle = 2×radius of a circle.

hope it helps.

stay safe healthy and happy.

5 0
2 years ago
Read 2 more answers
What percent of the volunteers was at least 15 years old but no more than 24 years old?
viva [34]

Answer:

i think it is 1% sry if wrong  

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Emma is standing 10 feet away from the base of a tree and tries to measure the angle of elevation to the top. She is unable to g
Vaselesa [24]
The complete question in the attached figure 

step 1
find the tree height for an angle of elevation of 55°<span> 
tan 55</span>°=opposite side angle 55°/adjacent side angle 55°
opposite side angle 55°=the tree height h1
adjacent side angle 55°=10 ft
so
tan 55°=h/10-------> h=10*tan 55°-----> h=14.28 ft

step 2
find the tree height for an angle of elevation of 75° 
tan 75°=opposite side angle 75°/adjacent side angle 75°
opposite side angle 75°=the tree height h2
adjacent side angle 75°=10 ft
so
tan 75°=h2/10-------> h2=10*tan 75°-----> h2=37.32 ft

therefore

<span>the height of the tree is within the range [14.26,37.32]
</span>
Part 1) 4.2 ft

<span>the value is not in the interval [14.26,37.32]
therefore
 it is </span>Not Reasonable

Part 2) 14.7 ft

the value is in the interval [14.26,37.32]
therefore
 it is Reasonable

Part 3) 24.4 ft

the value is in the interval [14.26,37.32]
therefore
 it is Reasonable

Part 4) 33.9 ft

the value is in the interval [14.26,37.32]
therefore
 it is Reasonable

Part 5) 39.1ft

the value is not in the interval [14.26,37.32]
therefore
 it is Not Reasonable

Part 6) 58.7 ft

the value is not in the interval [14.26,37.32]
therefore
 it is Not Reasonable

4 0
3 years ago
Plz only correct answers!
Softa [21]

Answer:

16

Step-by-step explanation:

30- 14=16

3 0
3 years ago
Read 2 more answers
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