3 years ago

In the diagram below, what is the value of x? A. 3 B. 13 C. 177 D. 90

Mathematics

1 answer:

Elena-2011 [213]3 years ago

5 0

The answer is A. 3° 87+90= 177+ 3= 180°

You might be interested in

X^2+y^2+14x+10y=7 <br> center and radius

Sholpan [36]

$(x-a)^2+(y-b)^2=r^2\\\\(a;\ b)-the\ coordinates\ of\ the\ center\\r-the\ radius\\\\==================================\\Use:(k+l)^2=k^2+2kl+l^2\ (*)\\==================================$

$x^2+y^2+14x+10y=7\\\\x^2+14x+y^2+10y=7\\\\x^2+2x\cdot7+y^2+2y\cdot5=7\\\\\underbrace{x^2+2x\cdot7+7^2}_{Use\ (*)}-7^2+\underbrace{y^2+2y\cdot5+5^2}_{Use\ (*)}-5^2=7\\\\(x+7)^2-49+(y+5)^2-25=7\\\\(x+7)^2+(y+5)^2-74=7\ \ \ \ |add\ 74\ to\both\ sides\\\\(x+7)^2+(y+5)^2=81\\\\(x+7)^2+(y+5)^2=9^2$

$Answer:\\\boxed{(-7;-5)-center;\ 9-radius}$

8 0

3 years ago

Read 2 more answers

Which are the roots of the quadratic function f(b)=b^2-75? Check all that apply.

barxatty [35]

A and B ............................

5 0

3 years ago

45 x 42 in standard algorithm

Serjik [45]

Answer:

1,890

Step-by-step explanation:

6 0

3 years ago

100 points please help

Sav [38]

Answer:

${ \tt{(3x - 14) \degree = (2x + 10) \degree}} \\ { \rm{ \{alternate \: angles \}}} \\ \\ { \tt{3x - 2x = 10 + 14}} \\ \\ { \boxed{ \tt{ \: x = 24 \: }}}$

5 0

3 years ago

Read 2 more answers

You and 2 friends share 7 cookies equally how many cookies do you each get

UkoKoshka [18]

Well 7/2=3.5 so i would say 3/1/2 i believe

8 0

3 years ago