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
Bond [772]
3 years ago
10

Help on this please!

Mathematics
1 answer:
Nana76 [90]3 years ago
8 0
2/9 - 7/12

First, multiply to find a common denominator. Multiply both pieces of the left fraction by 12, and both pieces of the right fraction by 9.

24/108 - 63/108 = -39/108 = -13/36

a= -13
b= 36
You might be interested in
How do you solve 9 tenths minus 13 fiftenths
Elena L [17]

Answer:

0.04

Step-by-step explanation:

1. 9/10 = 0.9 and 13/15 = 0.86

2. Subtract 0.9 and 0.86

3. You should end up with 0.04

Remember when a number goes like 0.86666666666 to use 0.86 or if it has 0.86666666667 to use 0.87 because you would be simplifying it.

4 0
3 years ago
An observer on top of a 50-foot tall lighthouse sees a boat at a 7° angle of depression. To the nearest foot, how far is the boa
Yuri [45]

Answer:

407.22 foot is the boat from the base of the lighthouse

Step-by-step explanation:

Given the statement: An observer on top of a 50-foot tall lighthouse sees a boat at a 7° angle of depression.

Let x foot be the distance of the object(boat) from the base of the lighthouse

Angle of depression = 7^{\circ}

\angle CAB = \angle DCA = 7^{\circ}       [Alternate angle]

In triangle CAB:

To find AB = x foot.

Using tangent ratio:

\tan (\theta) = \frac{Opposite side}{Adjacent Base}

\tan (\angle CAB) = \frac{BC}{AB}

Here, BC = 50 foot and \angle CAB =7^{\circ}

then;

\tan (7^{\circ}) = \frac{50}{x}

or

x = \frac{50}{\tan 7^{\circ}}

x = \frac{50}{0.1227845609}

Simplify:

AB = x = 407.217321 foot

Therefore, the boat from the base of the light house is, 407.22'





5 0
3 years ago
Question Help
FinnZ [79.3K]
CoComo no sabía que esto era la única cosa que trabajo perro
7 0
3 years ago
NEED HELP NOW 100 POINTS WILL MARK BRAINLIEST!!! PLZ ANSWER ALL PHOTOS (5)
maksim [4K]
1. kilogram
2. pineapple
3. 2.2315
4. 627532
5. 1.71m
6. 840in^2
7.  41ft by 36ft; 154ft
8. 1,066ft^2
9. 6,556cm^2
4 0
3 years ago
Read 2 more answers
The product of a number and 10, increased by 1
Alexxandr [17]

Answer:

10x+1

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Help i need help il give 5 pt
    7·1 answer
  • D=c-s/n answer for n
    10·1 answer
  • What is the slope of a line that is perpendicular to the line represented by the equation y = -2/5 x+ 4/5
    6·1 answer
  • Can someone help me out with this ??
    6·1 answer
  • Seven pipes empty a water tank in five days. In how many days would four pipes empty this tank? Give your answer in days and hou
    13·1 answer
  • Can somebody help me? Thank you!
    11·1 answer
  • Find the side length of<br> square area of 50 cm^2? find the perimeter.
    6·1 answer
  • Jim is twice Sharon's age together their ages add up to 27. how old is each person?​
    10·2 answers
  • Is 12 × –1 positive or negative? positive negative Submit
    11·1 answer
  • HELP ASAP will give brainliest for answer
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!