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Nookie1986 [14]
3 years ago
12

ASAP WILL GIVE BRAINLY

Mathematics
1 answer:
Sergeu [11.5K]3 years ago
6 0

Answer:

Step-by-step explanation:

C.35%

If you divide the number of hearts drawn by the number of total draws you get your answer.

14/20=0.35

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Marie noticed that she was eating 2100 calories per day she began a diet and limited herself to 1300 calories per day. What is t
sasho [114]

Answer:

decrease of 38% (to nearest percent)

Step-by-step explanation:

Percent change = [ (difference between final and initial value) ÷ initial value] x 100

⇒ percent change = [(2100 - 1300) ÷ 2100] × 100 = 38% (to nearest percent)

6 0
2 years ago
Convert f(x) = 5x(x – 6) to standard form
Pavlova-9 [17]

Answer:

5x^{2} - 30x

Step-by-step explanation:

6 0
2 years ago
1/2 divided 1/4 Help me​
s2008m [1.1K]

The answer is two my g

3 0
3 years ago
Read 2 more answers
I need help with number three and please explain how to solve it.
Hitman42 [59]

Answer:

y=-2x+2

slope-intercept form --> y=mx+b

m= slope. the slope in the graph is down 2 over 1, -2/1 which is the same as -2.

b = <u>y-intercept</u><u>. </u><u> </u><u>the </u><u>y-intercept</u><u> </u><u>is </u><u>2</u><u>.</u>

4 0
2 years ago
The lengths of pregnancies are normally distributed with a mean of 268 days and a standard deviation of 15 days.
Zarrin [17]
Let the lengths of pregnancies be X
X follows normal distribution with mean 268 and standard deviation 15 days
z=(X-269)/15

a. P(X>308)
z=(308-269)/15=2.6
thus:
P(X>308)=P(z>2.6)
=1-0.995
=0.005

b] Given that if the length of pregnancy is in lowest is 44%, then the baby is premature. We need to find the length that separates the premature babies from those who are not premature.
P(X<x)=0.44
P(Z<z)=0.44
z=-0.15
thus the value of x will be found as follows:
-0.05=(x-269)/15
-0.05(15)=x-269
-0.75=x-269
x=-0.75+269
x=268.78
The length that separates premature babies from those who are not premature is 268.78 days
8 0
3 years ago
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