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Nesterboy [21]
4 years ago
6

Explain how you would round the numbers 33 and 89 to estimate their sum

Mathematics
1 answer:
stiks02 [169]4 years ago
3 0
Since 33 is lower than 35 it would be rounded to 30 and since 89 is higher than 85 it would be rounded to 90. Now you have to do 90+30=120! So you're answer is 120
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10-mg Atorvastatin Placebo Headache 15 65 No headache 17 3 3. If two different subjects are randomly selected, find the probabil
balu736 [363]

Answer:

0.6384

Step-by-step explanation:

Given that:

10-mg Atorvastatin Placebo Headache  15      65       No headache 17      3

Hence the total of number of patients = 15 + 65 + 17 + 3 = 100 patients

The number of patients with headache = 15 + 65 = 80 patients

Also, C(n, x) is the number of combinations in which n items can be chosen taken x at a time it is given by the formula:

C(n,x)=\frac{n!}{(n-x)!x!}

The the probability that if two different subjects they both had a headache = \frac{C(80,2)}{C(100,2)}=\frac{\frac{80!}{(80-2)!2!} }{\frac{100!}{(100-2)!2!} }  =\frac{3160}{4950}=0.6384

4 0
3 years ago
Find the length of the midsegment of the trapezoid.
Triss [41]

Answer:

29

Step-by-step explanation:

The Trapezoid Midsegment segment theorem states that the length of the midsegment is half the sum of the length of its two parallel sides. Therefore:

MN = ½(AB + DC)

MN = ½(21 + 37)

MN = ½(58)

MN = 29

6 0
3 years ago
What is the value of x in 34 + 2x = 40
alekssr [168]

Hello from MrBillDoesMath!

Answer:

3

Discussion:

34           + 2x = 40             => subtract 34 from both sides

(34-34)   + 2x = 40 - 34     => as (34-34) = 0 and 40-34 = 6

2x                   = 6               => divide both sides by 2

x = 6/2 = 3

Check the answer:

Does 34 + 2x = 40 if x = 3 ?

Does 34 + 2(3) = 40 ?

Does 34 + 6      = 40 ?  YES! so the answer checks.

Thank you,

MrB

4 0
3 years ago
Read 2 more answers
The actual length of side t is 0.045 cm. Use the scale drawing to find the actual side length of w.
Nataly_w [17]

Answer:

Actual length of w is 0.075 units.

Step-by-step explanation:

Given the actual length of side t is 0.045 cm.

we have to use the scale drawing to find the actual side length of w.

As given the actual length of t is 0.045 cm.

Hence, we can find the scale factor using the lengths of t i.e actual length and after scale drawing by dividing.

Scale factor is \frac{0.9}{0.045}=20

Hence, we get the scale factor.

Now, scale factor=\frac{\text{length in figure}}{\text{actual length}}

⇒ 20=\frac{1.5}{\text{actual length}}

⇒ Actual length of w is \frac{1.5}{20}=0.075units

Option B is correct.

8 0
3 years ago
Read 2 more answers
In the sentence "Mary caught a frog," the common noun serves as
Gekata [30.6K]
C. The object of the sentence.

First, let's identify the common noun: 
Mary - wrong, cause it's a name.
Frog - yes, it's a common noun.

Second, let's see its role in the sentence: 
It comes after a verb, showing that it must be either an object of a predicate.
Predicate - wrong, cause "caught" is not a linking verb.
Object - correct answer.

---> Final answer: C.
3 0
4 years ago
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