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Lilit [14]
3 years ago
13

What is x + 2y - x - y + 5 x​

Mathematics
1 answer:
Viefleur [7K]3 years ago
6 0

Answer:

5x+y

Step-by-step explanation:

x + 2y - x - y + 5 x​

we sum the equals terms

5x+y

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AB is tangent to the circle k(O) at B, and AD is a secant, which goes through center O. Point O is between A and D∈k(O). Find m∠
drek231 [11]

Answer:

∠BAD=20°20'

∠ADB=34°90'

Step-by-step explanation:

AB is tangent to the circle k(O), then AB⊥BO. If the measure of arc BD is 110°20', then central angle ∠BOD=110°20'.

Consider isosceles triangle BOD (BO=OD=radius of the circle). Angles adjacent to the base BD are equal, so ∠DBO=∠BDO. The sum of all triangle's angles is 180°, thus

∠BOD+∠BDO+∠DBO=180°

∠BDO+∠DBO=180°-110°20'=69°80'

∠BDO=∠DBO=34°90'

So ∠ADB=34°90'

Angles BOD and BOA are supplementary (add up to 180°), so

∠BOA=180°-110°20'=69°80'

In right triangle ABO,

∠ABO+∠BOA+∠OAB=180°

90°+69°80'+∠OAB=180°

∠OAB=180°-90°-69°80'

∠OAB=20°20'

So, ∠BAD=20°20'

5 0
3 years ago
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I’m short word form 2,000,000+500,000+30,000+5,000+8
sasho [114]

Answer:

2,535,008

two million , five hundred thirty five thousand, eight

4 0
2 years ago
Audrey bought shoes that were on sale for 70% off the regular price. Audrey saved $42.
solniwko [45]
60 because .7 times 60 equals 42 therefore the answer is 60
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Prove that the expression A + B - C is equivalent to the expression C - B - A if A = 2x - 1, B = 3x + 1 and C = 5x.
zepelin [54]

Answer:

both are equal is 0

Step-by-step explanation:

After substituting, the answer is 0 to both

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IRINA_888 [86]
Teresa counted 2 leaves on May 1st and 9 leaves on September 1st.

The difference in the number of leaves is:
9 - 2 = 7

Hence, the number of leaves has increased by 7 units.
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3 years ago
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