All categories

2 years ago

Find the measure of angle x

Mathematics

1 answer:

Triss [41]2 years ago

4 0

Answer:

it is heptagon and sum of interior angles of heptagon is 900 °

123°+131°+ 125°+124°+x 129°+132° = 900°

764° +x = 900 °

x = 900°-764°

x = 136°

You might be interested in

Phillip saves $8each month. How many months will it take him to save at least $60.

Studentka2010 [4]

$8 each month
How many months will it take him to save at least $60?

60 ÷ 8 = 7.5

It will take Phillip 7.5 months to save up at least $60!

5 0

3 years ago

ABC IS a right angled triangle at B and D is a point on BC. If AD=18cm , BD=9cm and CD = 4 cm, find AC

leva [86]

$AB = \sqrt{ AD^{2} - BD^{2} } = \sqrt{243} = 9 \sqrt{3} 
$
$AC = \sqrt{ AB^{2} + BC^{2} } = \sqrt{412} = 2 \sqrt{103}$

4 0

2 years ago

Prove that

Dovator [93]

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identities

secx = $\frac{1}{cosx}$ , cosecx = $\frac{1}{sinx}$

cotx = $\frac{cosx}{sinx}$ , tanx = $\frac{sinx}{cosx}$

Consider the left side

secA cosecA - cotA

= $\frac{1}{cosA}$ × $\frac{1}{sinA}$ - $\frac{cosA}{sinA}$

= $\frac{1}{cosAsinA}$ - $\frac{cosA}{sinA}$

= $\frac{1-cos^2A}{cosAsinA}$

= $\frac{sin^2A}{cosAsinA}$ ( cancel sinA on numerator/ denominator )

= $\frac{sinA}{cosA}$

= tanA = right side ⇒ proven

5 0

2 years ago

Please help me 13-18. I have MS and can’t focus on these problems and missed a lot of the lessons learning this.

olchik [2.2K]

Answer:

Please, see the attached files.

Step-by-step explanation:

Please, see the attached files.

Thanks.

4 0

2 years ago

It takes stewart 8 minutes to drive to the store. It takes him 7 times as many minutes to Drive to work than it takes him to Dri

fenix001 [56]

Answer:

Step-by-step explanation:

8 * 7 = 56

How many minutes does it take stewart to Drive to work? = 7 times 8 minutes

5 0

3 years ago