Mathematics: PLEASE HELP WILL GIVE BRAINLIEST AND A LOT OF POINTS which expression has a negetive value

Step-by-step explanation:In circle with center O, By inscribed angle theorem:...

PLEASE HELP WILL GIVE BRAINLIEST AND A LOT OF POINTS

Ответ:

alyssadgonzalez

24.03.2021

Mathematics

2. x + y

$-\frac{11}{8} +-\frac{11}{4} = \frac{-33}{8}$

-1.375 + -2.75 = -4.125

Step-by-step explanation:

1. x - y

$-\frac{11}{8} - -\frac{11}{4} = \frac{11}{8}$

-1.375 - -2.75 = 1.375

2. x + y

$-\frac{11}{8} +-\frac{11}{4} = \frac{-33}{8}$

-1.375 + -2.75 = -4.125

3. x/y

$-\frac{11}{8} /-\frac{11}{4} = \frac{1}{2}$

1.375/-2.75 = 0.5

4. x * y

$-\frac{11}{8}* -\frac{11}{4} = \frac{121}{32}$

-1.375 * -2.75 = 3.78125

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Ответ:

jojokeys

29.11.2021

Mathematics

$(180 - 2x)\degree$

Step-by-step explanation:

In circle with center O, $m\angle BCD = x\degree ... (given) \\$

By inscribed angle theorem:

$m\angle BCD= \frac{1}{2} \times m\widehat {BD} \\\therefore x\degree = \frac{1}{2} \times m\widehat {BD} \\\therefore \widehat {BD} = 2x\degree \\\because m\widehat {BCD}+m\widehat {BD}= 360\degree \\(By\: arc\: sum\: postulate\: of\: a \: circle) \\\therefore m\widehat {BCD}+2x\degree = 360\degree \\\therefore m\widehat {BCD} = 360\degree - 2x\degree \\\\\because m\angle BAD = \frac{1}{2}(m\widehat {BCD} - m\widehat {BD}) \\\\\therefore m\angle BAD = \frac{1}{2}(360\degree - 2x\degree - 2x\degree) \\\\\therefore m\angle BAD = \frac{1}{2}(360\degree - 4x\degree ) \\\\\therefore m\angle BAD = \frac{1}{2}\times 2(180\degree - 2x\degree \\\\ \red {\boxed {\bold {\therefore m\angle BAD =(180- 2x)\degree}}} \\\\$

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PLEASE HELP WILL GIVE BRAINLIEST AND A LOT OF POINTS $let x= - \frac{11}{8} let y = -\frac{11}{4}\\$

which expression has a negetive value

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