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blondinia [14]
3 years ago
9

2.144 to the nearest decimal place

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

Answer:

2.14

Step-by-step explanation:

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A family is preparing backpacks filled with school supplies to donate to children in need. They have 9 pencils and 6 notebooks.
mel-nik [20]

Answer:3

Step-by-step explanation: i think

6 0
2 years ago
dog biscuits come in packages of 12 and pamphlets are in packages of 20 what is the smallest number of samples and pamphlets pet
notsponge [240]
<span>peter will need 60 packages of biscuits and pamphlets.</span>
5 0
3 years ago
What is the answer to this ?
Alekssandra [29.7K]

Answer: 13

Step-by-step explanation:

Pythagoras's theorem:

A^2 + B^2 = C^2

12^2 + 5^2 = x^2

144 + 25 = x^2

169 = x^2

13 = x

3 0
3 years ago
The median value of a home in a particular market is decreasing exponentially. If the value of a home was initially $240,000, th
icang [17]
1st let's calculate the decreasing rate & let V₁ be the initial value & V₂ the final's

we know that V₂=V₁.e^(r,t) where r=rate & t-time (& e=2.718)

After t= 2 years we can write the following formula

2350,000=240,000.e^(2r)==> 235,000/240000 = e^(2r) =>47/48=e^(2r)
ln(47/48)=2rlne==> ln(47/48)=2rlne=2r (since lne =1)
r= ln(47/48)/2==>r=-0.0210534/2 =-0.01052 ==> (r=-0.01052)

1) Determine when the value of the home will be 90% of its original value.
90% of 240000 =216,000
Now let's apply the formula
216,000=240,000,e^(-0.01052t), the unknown is t. Solving it by logarithm it will give t=10 years
1.a) Would the equation be set up like so: V=240e^.09t? NON, in any case if you solve it will find t=1 year

2)Determine the rate at which the value of the home is decreasing one year after : Already calculated above :(r=-0.01052)

3)The relative rate of change : it's r = -0.01052


4 0
3 years ago
Can anyone help me with this. It asks to solve and check your answer.
tankabanditka [31]
\sf 4m-21=3(5m-1)

First, distribute 3 into the parenthesis(multiply it to every term inside):

\sf 4m-21=15m-3

Add 21 to both sides:

\sf 4m=15m+18

Subtract 15m to both sides:

\sf -11m=18

Divide -11 to both sides:

\sf m=-\dfrac{18}{11}

To check our work we can plug this back into the original equation for 'm':

\sf 4m-21=3(5m-1)

\sf 4(-\dfrac{18}{11})-21=3(5(-\dfrac{18}{11})-1)

Multiply:

\sf -\dfrac{72}{11}-21=3(-\dfrac{90}{11}-1)

Distribute 3 into the parenthesis:

\sf -\dfrac{72}{11}-21=-\dfrac{270}{11}-3

Subtract:

\sf -\dfrac{303}{11}=-\dfrac{303}{11}~\checkmark

Both sides are equal to each other, so we solved it correctly.
6 0
3 years ago
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