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
just olya [345]
2 years ago
10

In the diagram, ABC is a right - angled triangle.

Mathematics
1 answer:
Firdavs [7]2 years ago
4 0

\to \rm \sin(30)  = \dfrac{AC }{AB}

\\  \\

\to \rm \sin(30)  = \dfrac{AC }{40}

\\  \\

\to \rm  \dfrac{1}{2} = \dfrac{AC }{40 \degree}

\\  \\

\to \rm  \dfrac{40}{2} =AC

\\  \\

\to \rm \: AC  = 20 m

You might be interested in
How do you know the quotient of 639÷6 is greater than 100 before you actually divide
svp [43]
The 6 in the hundreds place tells you the quotient is at least 100. The non-zero digits in the 1s and 10s places tell you the quotient is more than 100.
4 0
3 years ago
Slove system of equations y=2x-3 y=x^2-2x-8
Fiesta28 [93]

Answer:

2 solutions:

x=5 and y=7

x=-1 and y=-5

Step-by-step explanation:

y=2x-3

y=x^2-2x-8

y=y   so:

2x-3=x^2-2x-8

simplifying to:

x^2-4x-5=0

factoring to:

(x-5)(x+1)=0

x=5 or x=-1

if x=5 then y=2(5)-3=7

if x=-1 then y=2(-1)-3=-5

3 0
2 years ago
What is the rate of change of the volume of the cylinder at that instance (in cubic kilometers per second)?
Kay [80]

Answer:

hello your question is incomplete attached below is the complete question

answer : -2400 π

Step-by-step explanation:

dr/dt = -12 km/s

h = 2.5 km

r = 40 km at some instant

hence the rate of change of Volume of cylinder at that instance

= dv / dt = d(\pi r^h ) / dt  

              = \pi h\frac{d(r^2)}{dt}  = -\pi h *2r *dr/dt

hence ; dv / dt = -2400 π

3 0
3 years ago
6. In a basketball game, Anton made 5 shots in 7 tries. What is the ratio of the
Dmitry [639]

Answer:

A 7:2

Step-by-step explanation:

6 0
3 years ago
Ramon earns $1,735 each month and pays $53.10 on electricity. To the nearest tenth of a percent, what perfect of ramons earnings
Alenkinab [10]

Answer:

\boxed{3.1 \, \%}

Step-by-step explanation:

The formula for calculating percentage is

\text{Percentage} = \dfrac{\text{Part}}{\text{Whole}} \times 100 \, \%

The "part" is the electricity payment.

The "whole" is Ramon's earnings.

\begin{array}{rcl}\text{\% of earnings} & = & \dfrac{53.10}{1735} \times 100 \, \% \\\\& = & \mathbf{3.1 \, \%}\\\end{array}\\\boxed{\mathbf{3.1 \, \%}} \text{ of Ramon's earnings are on electricity}

5 0
3 years ago
Other questions:
  • Janet can do a job in three hours while Gary can do the same job in two hours. If Janet works for an hour before Gary be in help
    13·2 answers
  • 50 PTS PLUS I WILL MARK BRAINLIEST
    13·2 answers
  • 5% of what number is 2
    5·2 answers
  • The graph shows the rate at which the depth of the water in a pond is changing over time. On a coordinate plane, a graph titled
    9·2 answers
  • Are the angles complementary, supplementary, or neither? What's the answer? Photo below.
    11·1 answer
  • Paul has $2,400 in a savings account earning 3.4% simple interest. How much more interest would he earn in 5 years if the intere
    9·1 answer
  • Write the pair of fractions as a pair of fractions with a common demoninator 2/3 5/6
    10·1 answer
  • Im confused about this question
    13·2 answers
  • What is 6/7 +8/36+9/45 equal?
    9·1 answer
  • In ΔBCD, the measure of ∠D=90°, BD = 20, CB = 29, and DC = 21. What is the value of the cosine of ∠C to the nearest hundredth?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!