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
maksim [4K]
3 years ago
13

Find the values of x and y?

Mathematics
2 answers:
Andrew [12]3 years ago
5 0

Answer:

x=20, y=70

Step-by-step explanation:

∠40°+∠adjacent to it =180°

∠adjacent= 180-40=140°

we see that 2 of the sides of one of the small triangles are congruent so that triangle is isoscel so the base angles are congruent as well

because sum of angles in a triangle has to be 180,

140 +x+x=180 so x=20°

from the right triange we see thhat y +90+20 =180 because sum of angle in a triangle has to be 180 so y=70

lakkis [162]3 years ago
4 0

Answer:x=20 y=70

Step-by-step explanation:

You might be interested in
How does multiplication relate to time conversion?
anygoal [31]
That would first be a conversion factor is a number used to change one set of units to another, by multiplying or dividing. when a conversion is necessasry
8 0
3 years ago
What is the volume in cubic centimeters of a cube that measures 13 cm wide
Andrei [34K]

Answer:

2197 cubic centimeters

Step-by-step explanation:

13^3=2197

8 0
3 years ago
Find area of a rectangle that measures 18yd by 14yd
adell [148]

Answer:

32.

Step-by-step explanation:

5 0
3 years ago
Look at picture. Does anybody know the answer I’m lost?
masha68 [24]

Let x,y be the dimensions of the rectangle. We know the equations for both area and perimeter:

A=xy=36

P=2(x+y)=36 \iff x+y=18

So, we have  the following system:

\begin{cases}xy=36\\x+y=18\end{cases}

From the second equation, we can deduce

y=18-x

Plug this in the first equation to get

xy=x(18-x)=-x^2+18=36

Refactor as

x^2-18x+36=0

And solve with the usual quadratic formula to get

x=9\pm3\sqrt{5}

Both solutions are feasible, because they're both positive.

If we chose the positive solution, we have

x=9+3\sqrt{5} \implies y=18-x=18-9-3\sqrt{5}=9-3\sqrt{5}

If we choose the negative solution, we have

x=9-3\sqrt{5} \implies y=18-x=18-9+3\sqrt{5}=9+3\sqrt{5}

So, we're just swapping the role of x and y. The two dimensions of the rectangle are 9+3\sqrt{5} and 9-3\sqrt{5}

6 0
3 years ago
H represents the height of<br> H = 210 +33t<br> How fast does the tree grow
lisabon 2012 [21]

Answer:

243

Step-by-step explanation:

you just add

3 0
3 years ago
Other questions:
  • A cake recipe calls for 1 cup of oil. Jean needs to make 12 cakes for her school bake sale. How many quarts of oil will Jean nee
    9·2 answers
  • Polynomial Equation question<br>(Screenshot included)
    5·1 answer
  • Eric is baking a cake the recipe calls for 2 1/2 pounds of flour for every 1/4 cup of sugar.How many pounds of flour should Eric
    8·1 answer
  • Kwan deposited $8,006 in a savings account with simple interest. Three months later, the account held $8,246.18. What was the in
    13·1 answer
  • What is the value of the fourth term in the geometric sequence
    6·1 answer
  • You have $576 in your checking account. Your cell phone company deducts $32 each month from your account. If you do not put any
    9·2 answers
  • \frac{(2_1-4_{2}) ^{4} } {2} <br> Quick I need help<br> Plz
    5·1 answer
  • HELP PLEASE 20 POINTS
    8·2 answers
  • Help me please and thank you
    8·2 answers
  • Chelsea is making a kite in the shape of a triangle. To determine if the triangle is a right triangle, Chelsea completed the fol
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!