Find the length of each missing side and each missing angle in the isosceles triangles below

Mathematics

1 answer:

goldenfox [79]3 years ago

4 0

Answer:

x = 5

y = 46

z = 88

Step-by-step explanation:

x is opposite one of the equal base angles. The other side is marked 5. Therefore x = 5

y is opposite one of the equal sides. It is an angle. It is equal to the other base angle whose measurement is given. y = 46

y + 46 + z = 180 All triangles have 180 degrees. y = 46 (above)

46 + 46 + z = 180

92 + z = 180 Subtract 92

z = 180 - 92

z = 88

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Find the square root of ±144−−−√.

fgiga [73]

Answer:

±12

Step-by-step explanation:

3 0

3 years ago

Pls help pls show working brainliest given to clearest answer

myrzilka [38]

Answer:

$x_1=\frac{1+\sqrt{61}}{6}\approx1.47,x_2=\frac{1-\sqrt{61}}{6}\approx-1.14$

Step-by-step explanation:

To solve a non-factorable quadratic equation in the form of $ax^2+bx+c=0$ , you need to use the quadratic formula where $x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$ :

$3x^2+x-5=0$

$x=\frac{-1\pm\sqrt{1^2-4(3)(-5)}}{2(3)}$

$x=\frac{-1\pm\sqrt{1+60}}{6}$

$x=\frac{-1\pm\sqrt{61}}{6}$

Because of the $\pm$ sign, quadratic equations always have two solutions, whether both are real, only one is real, or both are complex (in the form of $a+bi$ where $a$ is the real part and $b$ is the imaginary part where $i=\sqrt{-1}$ ). In this case, because the discriminant is positive (defined as $b^2-4ac$ ), then there are 2 real solutions.