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Oksi-84 [34.3K]
3 years ago
10

Maura spent 1 1/2 hours on science homework. This was 2/3 of the total time she spent on homework. How much time did she spend o

n homework?
Mathematics
1 answer:
Rudik [331]3 years ago
8 0
It is about 2.25 hours


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140÷(x+9)+(x+4)² when x =1 show work​
Dmitrij [34]

Answer:

39

Step-by-step explanation:

If x=1, then it's equal to 140/(1+9, or 10)+(1+4, or 5)^2, and that is equal to 140/10+5^2, or 140/10+25, and 140/10=14, and 14+25=39

brainliest pls

4 0
2 years ago
The time, T (seconds) it takes for a pot of
Natali [406]

Answer:

h=3 is  the answer

7 0
3 years ago
How do you simplify without using a calculator (-5)(7)+4×5​
Evgesh-ka [11]

Answer:

-15 Is the answer

Step-by-step explanation:

(-5)(7)+4×5​

= -15

(-5)(7) + 4×5 = -15/1 = -15

Multiple: -5 * 7 = -35

Multiple: 4 * 5 = 20

Add: the result of step No. 1 + the result of step No. 2 = -35 + 20 = -15

Hope this helps.

7 0
2 years ago
Question 1
Aleksandr-060686 [28]

Answer:

<em>T5 = 512</em>

Step-by-step explanation:

Given the sequence

2,8, 32, 128,...

The sequence is a geometric progression

nth term of a geometric progression is expressed as:

Tn = ar^n-1

a is the first term = 2

n is the number of terms = 5 (next term is the 5th term)

r is the common ratio = 8/2 = 32/8 = 4

Substitute and get the fifth term

T5 = 2(4)^5-1

T5 = 2(4)^4

T5 = 2*256

<em>T5 = 512</em>

<em>Hence the next term is 512</em>

7 0
3 years ago
The human lung has about 80 million alveoli. Give two features of the alveoli that allow large amounts of oxygen to enter the bl
I am Lyosha [343]

Answer:

Alveoli forms the respiratory surface in human body.Each alveolus is sac like structure bounded by a single layer of epithelial cells.It is bound on the outside by a network of capillaries. The pulmonary artery from the heart containing deoxygenated blood enters the lungs and then becomes oxygenated after passing in the capillaries through the lungs.

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3 years ago
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