1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Murljashka [212]
3 years ago
8

Simplify [7+2(5 - 9)2]/[(4+1)2 - 3(22)

Mathematics
2 answers:
Neporo4naja [7]3 years ago
8 0

\bf \cfrac{7+2(5-9)^2}{(4+1)^2-3(2^2)}\implies \cfrac{7+2(\stackrel{\downarrow }{-4})^2}{(\underset{\uparrow }{5})^2-3(\underset{\uparrow }{4})}\implies \cfrac{7+2(\stackrel{\downarrow }{16})}{\underset{\uparrow }{25}-3(4)}\implies \cfrac{7+\stackrel{\downarrow }{32}}{25-\underset{\uparrow }{12}} \\\\\\ \cfrac{39}{13}\implies \cfrac{3}{1}\implies 3

recall PEMDAS, parentheses or groups first, from innermost to outermost, then exponents and so on.

svet-max [94.6K]3 years ago
4 0

Answer:

9/56 is your answer.

Step-by-step explanation:

[7+2(5 - 9)2]/[(4+1)2 - 3(22)=

[7+2(-4)2]/[(5)2-66]=

[7+2(-8)]/[10-66]=

(7+-16)/(-56)=

-9/-56=

9/56 is your answer.

You might be interested in
A zip line is setup 150ft in the air, where a person can expect to zip line at a safe declining speed to the ground as they pass
hichkok12 [17]

Answer:

139 ft

Step-by-step explanation:

So the zip line forms a right triangle.  The height of the triangle is 150 ft, and the opposite angle is 40°.  The horizontal distance covered by the zip liner can be found with trigonometry, specifically with tangent.

tan 40° = 150 / x

x = 150 / tan 40°

x ≈ 179 feet

But this includes the 40 ft long body of water, so the amount of ground covered is:

179 ft - 40 ft = 139 ft

4 0
3 years ago
Angle a is 40 work out the angle of X on the triangle
fredd [130]
50 degrees if it is a right angled triangle

4 0
3 years ago
I need help with this question ASAP!!!!!!!!!!!!!
Mazyrski [523]

The height of the flag pole is 51 ft.

Solution:

Paul creates the smaller triangle and flag pole creates the larger triangle.

Base of smaller triangle = 10 ft

Height of smaller triangle = 6 ft

Base of the larger triangle = 85 ft

Let the height of the flagpole be h.

$\Rightarrow \frac{6}{10} =\frac{h}{85}

Multiply by 85 on both sides.

$\Rightarrow 85 \times \frac{6}{10} =\frac{h}{85}  \times85

$\Rightarrow \frac{510}{10} =h

⇒ 51 = h

The height of the flag pole is 51 ft.

7 0
3 years ago
Find the measure of the arc or angle indicated.
Verizon [17]
The measure of the arc indicated is 700 degrees
4 0
3 years ago
A store sells three different packs of the same yogurt. Which pack is the best buy? Explain.
shtirl [24]

Answer:

$5.32

Step-by-step explanation:

I think its $5.32 because there is at least 6 yogurts in the pack, and its not to expensive as the first one. Plus it has 2 more yogurts then the third one.

(i am so sorry if this dosent make sense)

3 0
3 years ago
Other questions:
  • A bag of sweets contains only two different flavours - strawberry and orange The probability that a sweet is strawberry flavour
    13·2 answers
  • This is Simple Interest Ration and percent 7 grade please help
    10·1 answer
  • X = 1 + y <br> 3x - 6y = -12 <br> a. (-2,-1) <br> b. (2,3)
    5·1 answer
  • Solve for x.
    15·2 answers
  • Hi guys! Ive come across this math problem and I was wondering if I could get some help,
    6·2 answers
  • If f'(x) = cos(3^x), then the smallest value of x for which f has a relative maximum is:
    8·1 answer
  • PLZZZZZZ HELPPPPPP i will give BRAINLIEST!!!!!!!!
    5·2 answers
  • Mhanifa please help fast
    7·1 answer
  • Check screenshot. that is where the question is placed.
    6·1 answer
  • Is not a polygon because ???
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!