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german
3 years ago
7

The diagram shows contents of a jar of marbles you select two marbles at random one marble is drawn and not replaced the second

one is drawn what is the probability for selecting red marble and the another red marble
Mathematics
1 answer:
lesya [120]3 years ago
4 0
I need to see the image
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What is the probability of spinning a number greater than 7 or an odd number? (1 Point)
yaroslaw [1]
B) 7/10
It is B because there are 7 out of 10 possibilities that you would get a number greater than 7 or an odd number.
8 0
3 years ago
Jasmine is making cookies for everyone in her class and she wants to make sure everyone gets at least one cookie. The recipe cal
andreev551 [17]

Answer:

1.5 or 3/2 teaspoons

Step-by-step explanation:

If her class has 36 students, and there are 12 cookies in every batch, then she needs 3 batches to give everyone in her class 1 cookie each. It takes 1/2 teaspoon for every recipe, so she needs 3 of those. 3 × 1/2 = 1.5 (or 3/2)

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2 years ago
What is the value of 2x3squared +x2squared when x = 3
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6 0
3 years ago
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
Read 2 more answers
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