3 years ago

Please help, i will give brainliest!

Mathematics

1 answer:

Lena [83]3 years ago

5 0

Answer:

yes please, ask the question

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A human heart beats an average of 80 beats per minute. How many heart beats is this in a day

vovangra [49]

Answer:

115200

Step-by-step explanation:

80 Beats Per Minute x 60 Minutes (1 hour) x 24 Hours (1 Day) = 115200

3 0

3 years ago

Help!

Olin [163]

Answer:

2/16

1/8

Step-by-step explanation:

8/1=8

2/16=0.125 which is equal to 1/8

2/14=1/7

1/8=1/8 is 2/16 simplified so they are the same

14/2=7

6 0

3 years ago

Need help pleaseee i have a test on friday

larisa [96]

Answer:

x = 8

Step-by-step explanation:

Using the sine or cosine ratio in the right triangle and the exact value

sin30° = $\frac{1}{2}$ , then

sin30° = $\frac{opposite}{hypotenuse}$ = $\frac{4}{x}$ = $\frac{1}{2}$ ( cross- multiply )

x = 8

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3 years ago

Out of the 40 students in the 7th grade 60% of the students carry cell phones. What fraction of the students carry a cell phone?

nexus9112 [7]

If you have 60% out of 40 students that is 24 students

6 0

3 years ago

Read 2 more answers

If the probabilities that an automobile mechanic will service 3, 4, 5, 6, 7, or 8 or more cars on any given workday are, respect

Readme [11.4K]

Answer:

$P(X\geq 5)=0.69$

Step-by-step explanation:

We need to find the probability that the mechanic will service or more cars.

It's a simpler one given that we have the probabilities of servicing 4 or less cars.

P(at least 5 cars) is given by subtracting the probabilities of servicing both 3 and 4 cars.

$P(X\geq 5)=1-p(x=4)-p(x=3)\\P(X\geq5)=1-0.12-0.19\\P(X\geq5)=1-0.31\\=0.69$

5 0

3 years ago