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
larisa86 [58]
3 years ago
7

Please help with 17, 19, and 21 using trigonometry. Thanks!​

Mathematics
1 answer:
omeli [17]3 years ago
7 0
I honestly don’t know. But the square in the bottom of the triangles indicate that it is a right triangle equaling 90 degrees. You can try using that along with other knowledge of right triangles you have. Could you possibly use Pythagorean theorem also?
You might be interested in
Dan is watching the birds in his backyard. Of the birds he watches, 9 of them, or 45%, are sparrows. How may birds are in his ba
andrezito [222]

Answer:

5

Step-by-step explanation:45 divided by 9 is 5

6 0
3 years ago
Read 2 more answers
Find a formula for the function whose graph is given below.
gayaneshka [121]
Y=(x-2)^2+3
^^^^^^^^^^^^^^^^
5 0
3 years ago
2(x+y) = 61-2y<br> 4x-4 = 18-3y
Naddik [55]

Answer:

x = 8

y = -7

Step-by-step explanation:

This is a system of equations called simultaneous equations. We shall solve it by elimination method Step 1We shall label the equations (1) and (2)−3y−4x=−11.....(1)3y−5x=−61......(2)Step 2Multiply each term in equation (1) by 1 to give equation (3)1(-3y-4x=-11).....(1)-3y-4x=-11....(3)Step 3Multiply each term in equation 2 by -1 to give equation (4)-1(3y−5x=−61)......(2)-3y+5x=61.....(4)Step 4-3y-4x=-11....(3)-3y+5x=61.....(4)Subtract each term in equation (3) from each term in equation (4)-3y-(-3y)+5x-(-4x)=61-(-11)-3y+3y+5x+4x=61+110+9x=729x=72Step 5Divide both sides of the equation by 9, the coefficient of the unknown variable x to find the value of x 9x/9 = 72/9x = 8Step 6Put in x = 8 into equation (2)3y−5x=−61......(2)3y-5(8)=-613y-40=-61Collect like terms by adding 40 to both sides of the equation 3y-40+40=-61+403y=-21Divide both sides by 3, the coefficient of y to find the value of y 3y/3=-21/3y=-7Therefore, the values of x and y that satisfy the equations are 8 and -7 respectively

4 0
3 years ago
When evaluating (6 x + 9) squared minus 5 for x = 1, the given value of 1 is substituted for what part of the expression?
STALIN [3.7K]

Answer:

the variable

Step-by-step explanation:

i got it right on edge :)

4 0
3 years ago
Read 2 more answers
Pet Supplies make a profit of $5.50 per bag on the nine of natural dog food. If the store wants to make a profit of no less than
Burka [1]

Answer:

=> (5200 X 9)/5.5=8509

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Profit is the difference between revenue and cost. The revenue, in dollars, of a company that manufactures televisions can be mo
    5·2 answers
  • Just do #6, giving all I have!
    5·1 answer
  • Reginald read his novel three nights in a row. Each night, he read for
    11·1 answer
  • Find the numerator of the equivalent fraction with the denominator 12x 3/4
    13·1 answer
  • Plssssssssss help meeeee 1 pic included... Don't let this go math people!!!
    15·2 answers
  • Which is equal to x^3-8
    9·1 answer
  • What is the circumference of the given circle in terms of pi?
    15·2 answers
  • They all equal up 180 but what is x?
    14·2 answers
  • Where should you take a lost salad
    12·1 answer
  • Please help me thank you!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!