Step-by-step explanation:
Step one:
given data
amount deposited=$48
after the purchase of groceries
account balance= $19
cell phone bill, which= $31
Step two:
The account balance after paying for groceries will be
=19-31= $-12
she will have a deficit of $12, hence a negative account balance
<em>To start, Deena had a positive balance.
-------True</em>
<em>
</em>
<em>In this situation, 0 represents an empty bank account.
-----True</em>
<em>
</em>
<em>After paying for groceries, Deena had a negative balance.
---True</em>
<em>
</em>
<em>After paying her cell phone bill, Deena had –$12 in the account.
...True</em>
<em>
</em>
<em>The smallest balance in the account was $19.
....True</em>
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Answer:
a. y = -2x + 7
Step-by-step explanation:
First, find the slope by plugging the points into the slope formula,
, which equals -2. Then use the slope and the point (7,-7) to make an equation in slope-point form. y+7=-2(x-7), finally solve for y to get y=-2x+7.
Answer: a) (1008.34,1019.658) b) (1009.24,1018.76)
Step-by-step explanation:
Since we have given that
n = 75
mean = 1014 hours
Standard deviation = 25 hours
At 95% two sided , z = 1.96
So, confidence interval would be

(b) Construct a 95% lower confidence bound on the mean life.
z = 1.65
So, confidence interval would be

Hence, a) (1008.34,1019.658) b) (1009.24,1018.76)
The area of the trampoline is mathematically given as
a = 3.14
<h3>What is the area?</h3>
Question Parameters:
You found one online that has a circumference of 6.28 yards
Generally, the equation for the Circumference is mathematically given as
C = 2*pi*r
Thererfore
6.28 = 2*3.14*r
r = (6.28)/(6.28)
r = 1
In conclusion, where radius is

a = 3.14*1^2
a = 3.14
Read more about Arithmetic
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