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Elis [28]
3 years ago
10

Please help due ASAP I really need help

Mathematics
2 answers:
elena55 [62]3 years ago
6 0
C because it is icoceles.
Oxana [17]3 years ago
4 0

Answer:

21.25

Step-by-step explanation:

The sum of all angles in a triangle equals 180°

Since it's an isosceles triangle, the base angles are congruent.

180 = 75 + (2x + 10) + (2x + 10)

180 = 95 + 4x

-95    -95

85 = 4x

x = 21.25

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2/3 divided by 2 1/2
iVinArrow [24]

Step-by-step explanation:

Step 1: Multiply to get the lowest common denominator

Step 2: reciprocate thw second fraction(flipping the values)

Step 3: Cancel out values.

4 0
3 years ago
Simplify the complex fraction. Please show all work!
Olin [163]

Answer:

3(u^2 +u-3)

-------------------

u(u-3)^2

Step-by-step explanation:

u         1

---- + -------

u-3      u

-------------------------

    u-3

  ----------

    3

Get a common denominator for the numerator

u *u         1(u-3)

----      + -------

(u-3)u      u(u-3)

-------------------------

    u-3

  ----------

    3

u *u + (u-3)

-----------

(u-3)u      

-------------------------

    u-3

  ----------

    3

Now use copy dot flip

u *u + (u-3)        3

----------------- * -------------

(u-3)u                 u-3

3(u^2 +u-3)

-------------------

u(u-3)^2

7 0
3 years ago
Which are the solutions of the quadratic equation x^2=-5x-3
frutty [35]
The correct answer would be \frac{-5 +/-  \sqrt{13} }{2}

In order to solve for this you must first get the equation equal to 0. 

<span>x^2=-5x-3 ----> add 5x to both sides. 
x^2 + 5x = -3 ----> add 3 to both sides.
x^2 + 5x + 3 = 0

Now knowing this we can use the coefficients of each one in descending order of power as a, b and c. 

a = 1 (because it is the coefficient to x^2)
b = 5</span> (because it is the coefficient to x)
c = 3 (because it is the end number)

Now we can plug these values into the quadratic equation. 

\frac{-b +/-  \sqrt{b^{2} - 4ac } }{2a}

\frac{-5 +/- \sqrt{5^{2} - 4(3)(1) } }{2(1)}

\frac{-5 +/- \sqrt{13} }{2}

And those would be your two answers.
5 0
3 years ago
Which gives the correct vaules for points A, B, C and D?
sergejj [24]

Step-by-step explanation:

answer b

please mark as brilliant

3 0
2 years ago
Read 2 more answers
What is 4+7+3+8+3+7+3+9+= with a explaination.
zmey [24]

Answer:

44

Step-by-step explanation:

4+7=11

11+3=14

14+8=22

22+3=25

25+7=32

32+3=35

35+9=44

5 0
3 years ago
Read 2 more answers
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