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
Sonja [21]
2 years ago
8

Please please help please please

Mathematics
1 answer:
creativ13 [48]2 years ago
3 0

Answer:

75

Step-by-step explanation:

With reference angle 53°

base (b) = 45

hypotenuse (h) = K

Now

cos 53° = b / h

0.6 = 45 / K

K = 45 / 0.6

K = 75

You might be interested in
Can someone explain slope intercept form as simple as possible? Formula: y=mx+b
kirill115 [55]

Ok y is your y value from any point on the graph m is your slope x is the x value of any point from the graph and b is your y intercept that is where the line cross in the y line that is the vertical line in the graph

7 0
2 years ago
Read 2 more answers
A child lets go of a balloon that rises at a constant rate. 5 seconds after it was released, the balloon is at a height of 16 fe
Mama L [17]

Answer:

1. h = 2.4t + 4

2. 4 feet

3. 220 feet

Step-by-step explanation:

1. Write a linear model for the height, h, of the balloon as a function of the number of seconds, s that it has been raising.

Since the balloon rises at a constant rate, we find this rate by using the initial and final values of height and time at 5 seconds and 20 seconds respectively which are 12 feet and 52 feet respectively.

So, rate = gradient of line

= change in height/change  in time

= (52 ft - 16 ft)/(20 s - 5 s)

= 36 ft/15 s

= 2.4 ft/s

Now the equation of the line which shows the height is gotten from

(h - h')/(t - t') = rate

Using h'= 16 feet and t' = 5 s, we have

(h - 16)/(t - 5) = 2.4

h - 16 = 2.4(t - 5)

h - 16 = 2.4t - 12

h = 2.4t - 12 + 16

h = 2.4t + 4

where h is the height of the balloon above the ground and t is the time spent in the air in seconds.

2. What was the height of the balloon initially before the child let it go?

We obtain the initial height of the balloon before the child let go at time, t = 0 the time before the child let go.

So, substituting t = 0 into the equation for h, we have

h = 2.4t + 4

h = 2.4(0) + 4

h = 0 + 4

h = 4 feet

So, the height of the balloon before the child let go is 4 feet above the ground.

3. Use your model to predict the height of the balloon after 90 seconds.

We insert t = 90 s into the equation for h. So,

h = 2.4t + 4

h = 2.4(90) + 4

h = 216 + 4

h = 220 feet

So, the height of the balloon after 90 s is 220 feet above the ground.

8 0
2 years ago
How can you actually divide numbers without subtraction?
Tamiku [17]

#include <stdio.h> #include <stdlib.h>

// Function to perform division (x / y) of two numbers x and y. // without using division operator in the code. int divide(int x, int y)

{ // handle divisibility by 0. if (y == 0)

{ printf("Error!! Divisible by 0"); exit(1);

} // store sign of the result.

int sign = 1; if (x * y < 0)

7 0
3 years ago
What is the interest rate $14,095 at 3.8% for 5 1/2 years
ivanzaharov [21]

Answer:

373737373746372838484883848r

7 0
2 years ago
Find the area of each sector shown (the shaded section)
mihalych1998 [28]

Answer:

The area of the sector (shaded section) is 29.51 m^{2}.

Step-by-step explanation:

Area of a sector = (θ ÷ 360) \pir^{2}

where θ is the central angle of the sector, and r is the radius of the circle.

From the diagram give, diameter of the circle is 26 m. So that;

r = \frac{diameter}{2}

 = \frac{26}{2} = 13 m

θ = 360 - (180 + 160)

  = 360 - 340

  = 20^{o}

Thus,

area of the given sector = \frac{20}{360} x \frac{22}{7} x (13)^{2}

                                        = \frac{20}{360} x x \frac{22}{7} x 169

                                         = 29.5079

The area of the sector (shaded section) is 29.51 m^{2}.

4 0
2 years ago
Other questions:
  • Alex is paid $30/hr at full rate, and $20/hr at a reduced rate. The hours of work are paid at a ratio of 2:1, full rate : reduce
    5·1 answer
  • The mapping diagram shows a functional relationship.<br> Complete the statement.<br> f(3) is ___
    8·2 answers
  • PLEASE HELP!
    7·1 answer
  • A number is three times another number. The difference of these two numbers is 10. Find these number.​
    10·2 answers
  • 2-3(5n-1) 2n What is the coefficient
    15·1 answer
  • A basketball gymnasium is 25 meters high, 80 meters wide and 200 meters long. We want to connect two strings, one from each of t
    13·1 answer
  • I NEED HELP WITH THIS QUESTION PLEASE ? :(
    13·1 answer
  • Solve for the value of z.<br> (5z-4) 39
    11·1 answer
  • Schaumburg 7th Grade Class has a Student Group for Math each group member must pay $10 each year in membership dues. The number
    10·1 answer
  • For each set of measures, choose whether the conditions determine a unique triangle, more than one triangle, or no triangle.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!