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
meriva
3 years ago
5

Please help ASAP 40 PTS

Mathematics
2 answers:
Shkiper50 [21]3 years ago
4 0

Answer:

B) 70°

Step-by-step explanation:

The triangle with x is an isosceles triangle, with base angles = 40

40 is the the angle of the triangle with angle y too (vertically opposite angles)

180 - 40 = 140 is the sum of the two base angles

y = 140/2 = 70

umka21 [38]3 years ago
3 0

Answer:

70

Step-by-step explanation:

The angle not marked in the top triangle is 40 degrees since it is an isosceles triangle.  That makes the angle opposite it in the other triangle 40 degrees since they are vertical angles and vertical angles are equal.

The bottom triangle has 3 angles that sum to 180 degrees,  The other angle not marked is also y since it is an isosceles triangle.

40 + y +y = 180

Subtract 40 from each side and combine like terms

40-40 +2y = 180-40

2y = 140

Divide by 2

2y/2 = 140/2

y = 70

You might be interested in
A broker charges 70 per square foot to install windows how much does it cost to install the windows shown
ozzi
XjsikJvenrmbrvr d vetch tmtvtntbrxctvy ft rvrnhwksixucjmevectvtggt
8 0
3 years ago
Jeremy’s dad is making cupcakes for his birthday. He needs 50 cupcakes in all. So far he made 13 chocolate cupcakes and 15 vanil
Iteru [2.4K]

Answer:

22 cupcakes

Step-by-step explanation:

13+15=28

50-28=22

4 0
3 years ago
Read 2 more answers
A colony of bacteria is grown under ideal conditions in a laboratory so that the population increases exponentially with time. A
Naddik [55]

Answer:

Initial bacterias = 6006000

Altought I believe is safe to assume that the values were 192,000 and 384,000 instead of 192,192,000 and 384,384,000, in that case the initial bacterias is 6000

Step-by-step explanation:

A exponential growth follows this formula:

Bacterias  = C*rⁿ

C the initial amount

r the growth rate

n the number of time intervals

Bacterias (55 hours) = 192,192,000

Bacterias (66 hours) = 384,384,000

Bacterias(55hours)=C*r^{{\frac{55-t}{t}}} \\Bacterias (66hours) = C*r^{\frac{66-t}{t}}}

If you divide both you can get the growth rate:

\frac{Bacterias (66hours)}{Bacterias(55hours)}=\frac{C*r^{\frac{66-t}{t}}}{C*r^{{\frac{55-t}{t}}}} \\\frac{384,384,000}{192,192,000} =r^{\frac{66-t}{t} -\frac{55-t}{t} } \\2 =r^{\frac{11}{t}}

So with that r = 2 and each time interval correspond to 11 years

Then replacing in one you can get the initial amount of C

Bacterias (55hours)=C*2^{\frac{55-11}{11} } 192,192,000 = C*32\\C= 6006000

7 0
3 years ago
After travelling 2/5 of a Journey
Trava [24]

Answer:

= 100 km

Step-by-step explanation:

Total length = 5/5

Covered length = 2/5

Remaining length = 5/5 - 2/5 = 3/5

If 3/5 = 60 km

What about 5/5 = ?

= 5/5 x 60 x 5/3 (reciprical)

= 60 x 5/3

= 300/3

= 100 km

Covered distance = 100 - 60 = 40 km

6 0
3 years ago
Can somebody help me on this problem please I will give you brainliest:)
vodka [1.7K]
That’s confusing do you know the formula your supposed to use?
5 0
2 years ago
Other questions:
  • How to solve 1/5(x+10)=5x+25
    8·1 answer
  • PLEASE HELP AND EXPLAIN
    7·2 answers
  • First year of high school heh need a little help​
    12·1 answer
  • The time period of a simple pendulum is directly related to the square root of its length. An 8 foot pendulum has a period of 3.
    13·1 answer
  • Slope intercept of (2,1) and (4,0)
    9·1 answer
  • Please help me with this problem!
    13·2 answers
  • How do you find slope
    10·1 answer
  • The points given in the table lie on a line. Find the slope of the line.
    9·1 answer
  • Use any pair of points to calculate the slope of the line.
    8·2 answers
  • Simplify the following expression to remove negative exponents.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!