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ElenaW [278]
3 years ago
9

Plzzzzz helpppp!!!!!!

Mathematics
2 answers:
disa [49]3 years ago
8 0

Answer:

x=11

Step-by-step explanation:

because a each angle of a square or rectangle is 90° which means you add 9 to 90 and then divided 99 by 9 which is 11

oksano4ka [1.4K]3 years ago
7 0

Answer:

x = 11

Step-by-step explanation:

9x - 9 = 90

    + 9  + 9

9x = 99

9x/9  99/9

x = 11

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What is the missing number ?? /6 =25/30
matrenka [14]

Answer:

5

Step-by-step explanation:

\frac{25}{30} ( divide numerator and denominator by 5 ) , then

\frac{25}{30} = \frac{5}{6} ( with missing number ? = 5 )

8 0
2 years ago
Read 2 more answers
HELP PLEASE!!! 10 PTS!!
allsm [11]

Answer:

m∠DEC = 78°

Step-by-step explanation:

Given information: AC = AD, AB⊥BD, m∠DAC = 44° and CE bisects ∠ACD.

If two sides of a triangles are congruent then the opposite angles of congruent sides are congruent.

AC = AD                 (Given)

\angle ADC\cong \angle ACD

m\angle ADC=m\angle ACD

According to the angle sum property, the sum of interior angles of a triangle is 180°.

m\angle ADC+m\angle ACD+m\angle DAC=180

m\angle ACD+m\angle ACD+44=180

2m\angle ACD=180-44

2m\angle ACD=136

Divide both sides by 2.

m\angle ACD=68

CE bisects ∠ACD.

m\angle ACE=m\angle DCE=\dfrac{\angle ACD}{2}

m\angle ACE=m\angle DCE=\dfrac{68}{2}

m\angle ACE=m\angle DCE=34

Use angle sum property in triangle CDE,

m\angle CDE+m\angle DCE+m\angle DEC=180

68+34+m\angle DEC=180

68+34+m\angle DEC=180

102+m\angle DEC=180

Subtract 102 from both sides.

m\angle DEC=180-102

m\angle DEC=78

Therefore, the measure of angle DEC is 78°.

6 0
3 years ago
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tigry1 [53]
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4 0
3 years ago
Helpppp. I don’t understand
Pie
Multiply 2^(-5) by 2^6.  The correct result is 2^1, or just 2 (inches).
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3 years ago
Consider the statement "There are no simple solutions to life’s problems." Write an informal negation for the statement, and the
Blizzard [7]

solution is in the attachment

3 0
3 years ago
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