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sergey [27]
3 years ago
13

Please help am stuck on this

Mathematics
2 answers:
Marina86 [1]3 years ago
8 0

Answer:

-3,-2,-1,0,1,2,3,4,5

kobusy [5.1K]3 years ago
8 0

Answer:

Step-by-step explanation:

Builder notation :

X = {x ∈ Z : -4 < x ≤ 5}

Roster Notation :

X = { -3, -2, -1, 0, 1 , 2 , 3 , 4 , 5}

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a supplier sells 2 1/4 pounds of mulch for every 1 1/3 pounds of gravel. The supplier sells 172 pounds of mulch and gravel combi
astraxan [27]
2 1/4=2 3/12 and 1 1/3= 1 4/12
3 0
4 years ago
suppose 60% of kids who visit a doctor have a fever, and 20% of kids with a fever have sore throats. what's the probability that
kkurt [141]

Answer:

0.12

Step-by-step explanation:

Suppose there are 100 kids

60% have fever, so <em><u>what is 60% of 100?</u></em>

We convert percentage to decimal and multiply:

60/100 = 0.6

0.6 * 100 = 60 have fever

20% of the people having fever (60 of them) have sore throats, so,

<u><em>What is 20% of 60?</em></u>

We convert percentage to decimal and multiply:

20/100 = 0.2

0.2 * 60 = 12 have sore throat

So, how many people are there with fever AND sore throat, that is 12. We took initially there to be 100 people. Hence, the probability is:

\frac{12}{100}=0.12

3 0
3 years ago
Johnny bought an oil painting originally priced at $80 but on sale for for 50% off. After 10% sales tax, what was the total cost
Alecsey [184]

Answer:

$44

Step-by-step explanation:

Original price = $80

Discount on sale = 50%

Discounted price = (1 - 50%) * original price

Discounted price = 0.5 * $80 = $40

Sales tax = 10%

Sales tax amount = 0.1 * $40 = $4

Total cost = discounted price + sales tax amount

Total cost = $40 + $4 = $44

5 0
3 years ago
Melissa read 4 books each week for 4 weeks. Amanda read 5 books a week for 4 weeks. How many more books did Amanda read?
yarga [219]

Amanda read 4 more books then Melissa.

3 0
3 years ago
Read 2 more answers
If a transversal is perpendicular to one of two parallel lines, then it is perpendicular to the other one
ivanzaharov [21]
The right angle up at the number one and the unknown angle down at 2 are corresponding angles. corresponding angles are congruent. therefore angle down by two is a right angle and so the transversal is perpendicu lar to both lines
8 0
3 years ago
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