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
dezoksy [38]
3 years ago
15

A certain triangle has a 30° angle in a 60° angle. Which must be a true statement about the triangle

Mathematics
1 answer:
Lady bird [3.3K]3 years ago
6 0

Answer:

It is a right triangle.

Step-by-step explanation:

A right triangle is a triangle with at least one angle with 90 degrees.

We know that every triangle has 180 degrees. The other unknown angle is 180 - (30+60) = 180 - 90 = 90. That means that the other angle is 90 degrees. Therefore, it is a right triangle

We also know that in this triangle, that the square of one side plus the square of another is side is equal to the square of the hypotenuse of the triangle. (According to Pythagorean theorem)

You might be interested in
Equations!! PLS HELP ASAP!!
Likurg_2 [28]

Step-by-step explanation: Let  

Let  

y

be the total fee, and  

x

the number of months.

Equation 1:

y

=

50

+

55

x

Equation 2:

y

=

200

+

45

x

Solve the system for  

x

and

y

:

50

+

55

x

=

200

+

45

x

10

x

=

150

x

=

15

y

=

200

+

45

(

15

)

y

=

875

∴

The total amount paid to both gyms is equal after  

15

months and will be  

$

875

.

Hopefully this helps!

4 0
3 years ago
Pipers Pizza shop used 18% more cheese this month than last month, due to having a discount on the extra chesse toppings. If the
GenaCL600 [577]

Answer:

177 pounds

Step-by-step explanation:

Create an equation to represent the system.

Since it's 18% more than what was used last month an equation can be written such as the one below:

(118%)( last month's cheese ) = this month's cheese

Convert the percentages into decimals by moving the decimal place at the end of 118.00 two places to the left

118% = 1.18

( 1.18 )( last month's cheese ) = this month's cheese

Next, plug in the number for last month's cheese

( 1.18 )( 150 pounds) =

177 pounds

3 0
3 years ago
Helen's preferences over cds (c) and sandwiches (s) are given by u(s,
rusak2 [61]
<span>The fact that Helen’s indifference curves touch the axes should immediately make you want to check for a corner point solution. To see the corner point optimum algebraically, notice if there was an interior solution, the tangency condition implies (S + 10)/(C +10) = 3, or S = 3C + 20. Combining this with the budget constraint, 9C + 3S = 30, we find that the optimal number of CDs would be given by 3018â’=Cwhich implies a negative number of CDs. Since it’s impossible to purchase a negative amount of something, our assumption that there was an interior solution must be false. Instead, the optimum will consist of C = 0 and Helen spending all her income on sandwiches: S = 10. Graphically, the corner optimum is reflected in the fact that the slope of the budget line is steeper than that of the indifference curve, even when C = 0. Specifically, note that at (C, S) = (0, 10) we have P C / P S = 3 > MRS C,S = 2. Thus, even at the corner point, the marginal utility per dollar spent on CDs is lower than on sandwiches. However, since she is already at a corner point with C = 0, she cannot give up any more CDs. Therefore the best Helen can do is to spend all her income on sandwiches: ( C , S ) = (0, 10). [Note: At the other corner with S = 0 and C = 3.3, P C / P S = 3 > MRS C,S = 0.75. Thus, Helen would prefer to buy more sandwiches and less CDs, which is of course entirely feasible at this corner point. Thus the S = 0 corner cannot be an optimum]</span>
5 0
3 years ago
Rewrite the following equation in standard form.<br> y = 10x + 2
Naddika [18.5K]

Answer:  -10x + 1y = 2

Step-by-step explanation:

The standard formula says that  Ax + By = C   where A is the coefficient of the x variable, B is the coefficient of the y variable, and C is the constant value.

   y = 10x + 2   Subtract 10x from both sides of the equation .

-10x     -10x

-10x + 1y = 2  

6 0
3 years ago
elizabeth buys a circular rug with a lace border. the lace is 12.56 feet long what is the diameter of the rug
vfiekz [6]
We know that the lace is also what we would call the circumference of the circle.

And we also know that the circumference of a circle is represented by the equation: c= \pi d.

We then can use the length of the lace (12.56 ft) to solve for the diameter (d) of the rug. Let us solve for that now:

12.56=(3.14)d

d=4

We now know that the diameter of the rug is 4 ft.
3 0
4 years ago
Read 2 more answers
Other questions:
  • What is the IQR of 21 25 26 30 39 62 63 63 71
    6·2 answers
  • Anna baked <br> 3 batches of cookies with <br> c cookies in each batch. She then ate <br> 8 cookies!
    6·2 answers
  • What is <br> 5(2x+1)=4-2(4x-5)
    13·1 answer
  • 30 points, high school geometry question.
    14·2 answers
  • Consider the inequality -5(x+7)&lt;-10 write inequality representing a solution for x
    13·1 answer
  • Please help guys <br>I will be helping u in the days to come n follow u for sure​
    13·2 answers
  • Plz help me this hard
    12·1 answer
  • (4xz)³-2xy <br><br>x= 2 y=(-4) z= 1 <br><br>plz help it's for homwork.​
    12·1 answer
  • Some points because you deserve it
    14·2 answers
  • What's the exact value of sin 7/12?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!