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2 years ago

What is the answer please

Mathematics

1 answer:

FrozenT [24]2 years ago

3 0

If a ≥ 0 then √a denotes the non negative square root of a.

(x-9)^2 = (-(x-9))^2

So both x−9 and −(x−9) are square roots of (x−9)2, but we want to pick whichever is non negative.

x−9| does that for us.

Answer should be √(x-9)^2) = x-9

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Carla is selling chocolate bars for a fundraiser. Her goal is to sell 600 chocolate bars to win the top prize for selling them.

IceJOKER [234]

Answer:

She needs to sell for 64 more hours

Step-by-step explanation:

4 0

3 years ago

What does OD= Pls answer

Elodia [21]

Answer:

OD = 9.375"

Step-by-step explanation:

We can draw a line from O to B to create a triangle.

Then, Triangle ODB and Triangle ACB are similar, so their corresponding side's ratio are similar as well.

Triangle ACB, we can use pythagorean theorem to figure out CB:

AC^2 + CB^2 = AB^2

15^2 + CB^2 = 17^2

225 + CB^2 = 289

CB^2 = 64

CB = 8

Now relating the corresponding sides, we can figure out OD:

$\frac{OD}{DB}=\frac{AC}{CB}\\\frac{OD}{8-3}=\frac{15}{8}\\\frac{OD}{5}=\frac{15}{8}\\8OD=5*15\\OD=\frac{5*15}{8}\\OD=9.375$

8 0

3 years ago

Hurry pls!!! PLS ANSWER THE ATTACHMENT BELOW!!!

seraphim [82]

Answer:

Step-by-step explanation:

You just have to replace the value of n with 4.

C(n) = 46 + 3n

C(4) = 46 + 3(4)

= 46 + 12

= 58

4 0

2 years ago

Read 2 more answers

After 5 years, a $2,450 investment is worth $3,123.75.

kondaur [170]

Answer:

5.5%

Step-by-step explanation:

To solve this problem we can use a modified version of the simple interest formula which is shown below:

$r=\frac{I}{Pt}$

I = interest amount

P = principal amount

t = time (years)

The first step is to find the interest gained from the investment.

$3,123.75-2,450=673.75$

Next, plug in the values into the equation:

$r=\frac{673.75}{(2,450)(5)}$ Multiply the bottom values

$r=\frac{673.75}{12,550}$ Divide the values

$r=.055$

The last step is to convert 0.055 into a percent:

$0.055(100)=5.5$

The interest rate is 5.5%

3 0

3 years ago

There are five times as many cars as trucks on the road. Which fraction represents the number of vehicles that are trucks?

jonny [76]

Well, the ratio of cars to trucks is 5:1, so for every 1 truck, there are 5 cars, the sum would be 6. So that's the denominator, and then the numerator would be 1, since there's only 1 truck out of every 6 vehicles.

Answer: D. 1/6

5 0

2 years ago