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
likoan [24]
2 years ago
6

Find 85 - 72 x 4 ÷ 2 (13 - 11)

Mathematics
1 answer:
Lerok [7]2 years ago
7 0

Answer:

13

Step-by-step explanation:

using BODMAS

13-11=2

SO 2*2=4

4/4=1

1*72=72

THEREFORE it is 85-72 =13

You might be interested in
What are the missing terms 64, -32, 16, -8, ___, ___?
Daniel [21]

Divide by -2 for all of the numbers

64/-32=-2

-32/ 2= -16

-16/2= -8

-8/-2= 4

4/-2= -2

Answer : 4 ,-2

5 0
3 years ago
Read 2 more answers
using the slope formula find the slope of the line through the points (0,0) and (3,9) use pencil and paper explain how you can u
maxonik [38]

Answer:

9/3

Step-by-step explanation:

you can't subtract from zero or you can't subtract a number from zero.

7 0
3 years ago
Read 2 more answers
Fred the owl is looking down at a 67° angle from the top of a tree that is 15 ft tall, when he spots a bird on the ground. How f
guapka [62]

Answer:

Fred     C. 16.30 ft

Gary     B. 169.67 m

Step-by-step explanation:

Fred the owl...

Always <u>draw a diagram first</u> (see diagram below). We assume trees are perpendicular (at 90°) to the ground. The situation forms a right-angle triangle.

We need to <u>find "x"</u>, which is the direct distance between the owl and the bird. "x" is also the hypotenuse, which is the longest side in a right-angle triangle. Since we know a side and an angle, we can find the hypotenuse using primary trigonometry ratios.

∠B will be the angle of reference (the angle we are "talking" about). The side we know is opposite to ∠B (15ft). We know it's opposite because it's not touching the angle. The side we need to find is the hypotenuse.

<u>Use the trig. ratio sine</u> because it has opposite and hypotenuse in it. The general formula is:

sinθ = opp/hyp

θ means the angle, and we know it is 67°.

Replace all the information you know:

sinB = opp/hyp

sin67° = (15ft) / x     Isolate "x". Rearrange the equation.

xsin67° = (15ft)         Divide both sides by sin67°

x = (15ft) / sin67°

x = 16.295... ft   Exact answer in decimals

x ≈ 16.30 ft     Rounded to nearest hundredth

Therefore Fred the owl is 16.30 feet from the bird.

Gary spots a monkey...

Draw a diagram first (see below). G is Gary, M is the monkey, T is the bottom of the Sears Tower. We need to <u>find "x"</u>, which is the distance between the monkey and the bottom of the tower.

The angle of reference is M, which is 69°. We need to find the adjacent side and we know the opposite side. <u>The trig. ratio that has adjacent and opposite is tangent.</u>

tanθ = opp/adj

Replace all the information you know:

tanM = opp/adj

tan69° = (442m) / x    Rearrange the formula to isolate "x"

xtan69° = 442m         Divide both sides by tan69°

x = 442m / tan69°      Solve by dividing

x = 169.6679.... m    Exact decimal answer

x ≈ 169.67m            Rounded to the nearest hundredth

Therefore the monkey is 169.67 metres from the tower.

Remember all the trig. ratios using the acronym SohCahToa.

o = opposite side

a = adjacent side

h = hypotenuse side

S = sine, sin for short

C = cosine, cos for short

T = tangent, tan for short

The operation is always dividing the first side in the acronym by the second side.

sinθ = opp/hyp

cosθ = adj/hyp

tanθ = opp/adj

4 0
3 years ago
Which of the following is true of the constructions of an equilateral triangle, a square, and a regular hexagon when they are in
lidiya [134]
<span>a regular hexagon inscribed in a circle </span>
6 0
3 years ago
Is Y=9/3x+2 proportional or no nonprotional
Fiesta28 [93]

Answer:

Non proportional

Step-by-step explanation:

y = mx = proportional

y = mx + b = non proportional

y = mx + b

y = 9/3x + b = non proportional

Hope that helps!

3 0
2 years ago
Other questions:
  • PLZ HELP!! ILL GIVE BRAINLIESTT
    6·1 answer
  • Please help thanks will mark brainliest
    12·2 answers
  • There are 1,044 apartments in Baldwin County this year, which is approximately an 8.1% increase from last
    5·1 answer
  • PLES ANSWER FAST! I THIS IS DUE IN 5 MINUTES
    13·2 answers
  • 2x=34+36y<br> slope intercept form
    8·1 answer
  • 7xy+4 for x = 5 and y=-2
    6·2 answers
  • Help me please this is due tommorow
    6·1 answer
  • Scientific notation is a way of making numbers scientific.<br> O A. True<br> OB. False
    13·1 answer
  • Which of the following questions would use the calculation
    15·1 answer
  • This test is used to determine the end behavior of a polynomial function.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!