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3 years ago

Evaluate the expression and enter your answer 9+|9+2|

Mathematics

1 answer:

Jet001 [13]3 years ago

3 0

9+|9+2|

Add 9 and 2

9+11

Add 9 and 11

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Determine whether the forces in the pair are pulling at right angles to each other.

prohojiy [21]

Answer:

C) 3.0

Step-by-step explanation:

Let the length of the other side be x.

Using Pythagoras theorem for right-angled triangle,

4.2^2=2.9^2+x^2

or,x^2=4.2^2-2.9^2

or,x^2=9.23

or,x=√9.23=3.0 units

7 0

4 years ago

Solve 19.9=9y-8. Plz help me to answer this tysm❤

Ilia_Sergeevich [38]

Answer:

3.1

Step-by-step explanation:

19.9 = 9y - 8

+8 +8

27.9= 9y

/9 /9

3.1 = y

Check:

9(3.1) - 8 =

27.9 - 8 = 19.9

7 0

3 years ago

Deshawn leaves his house to run 5 miles. So

kow [346]

Answer:

He would need to run 7 more times to meet his goal of 5 miles

3 0

4 years ago

Cecily picked 219 apples and she divides them equally into 3 baskets how many apples are in each basket

Lynna [10]

There will be 73 apples in each basket,
to solve this you divide 219 into three.
Hope this helped!!

6 0

3 years ago

Read 2 more answers

PLEASE Help! ASAP PLZ

ira [324]

Answer:

0.57 yr

Step-by-step explanation:

To find the doubling time with continuous compounding, we should look at the formula:

$FV = PVe^{rt}$

FV = future value, and

PV = present value

If FV is twice the PV, we can calculate the doubling time, t

$\begin{array}{rcl}2 & = & e^{rt}\\\ln 2 & = & rt\\t & = & \dfrac{\ln 2}{r} \\\end{array}$

1. David's doubling time

$\begin{array}{rcl}t & = & \dfrac{\ln 2}{0.06125}\\\\& = & \textbf{11.317 yr}\\\end{array}$

2. Violet's doubling time

The formula for interest compounded periodically is

$FV = PV\left (1 + \dfrac{r}{n} \right )^{nt}$

where

n = the number of payments per year

$\begin{array}{rcl}9600 & = & 4800\left (1 + \dfrac{0.065}{4} \right )^{4t}\\\\2 &= & (1 + 0.01625 )^{4t}\\& = & 1.01625^{4t}\\\ln 2& = & 4 (\ln 1.01625)\times t \\& = & 0.064478t\\t& = & \dfrac{\ln 2}{0.064478}\\\\& = & \textbf{10.750 yr}\\\end{array}$

3. David's doubling time vs Violet's

11.317 - 10.750 = 0.57 yr

It would take 0.57 yr longer for David's money to double than Violet's.

8 0

3 years ago