All categories

3 years ago

If x = 9 and y = –1, evaluate the following

1 answer:

7 0

First you need to input your variables.
5/9-(-1)=x
following the order of operations, you need to divide first.
5/9 is going to be the smallest fraction you can get so you move on to subtracting. knowing that subtracting a negative number acts as adding that number as a positive.
5/9+1= 1 5/9 as a mixed fraction which is the simplest form.

You might be interested in

What is 5√ ? Place a dot on the number line at the best approximation.

Anon25 [30]

The square root of a number X is a real number that multiplied with itself gives the number X.
The square root of 5 is a real number that multiplied by itself gives the number 5.
X*X=5
Square root of 5 is 2.226
On the number line this number lies between the real numbers 2 and 3.
The number is noted with *.
1__________2__*__2.5_____3____________4__....

8 0

3 years ago

Read 2 more answers

Part of the population of 5,000 elk at a wildlife preserve is infected with a parasite. A random sample of 50

sdas [7]

Answer:

720 infected

Step-by-step explanation:

3 0

3 years ago

Suppose that the height (in centimeters) of a candle is a linear function of the amount of time (in hours) it has been burning.

kolbaska11 [484]

If the height of candle after 10 and 26 hours are 25 cm and 17 cm then the height of candle after 21 hours is 19.5 cm.

Given height of candle after 10 hours is 25 cm , height of candle after 26 hours is 17 cm.

We have to find the height of candle after 21 hours.

We have been given two points of linear function (10,25),(26,17).

We have to first form an equation which shows the height of candle after x hours.

let the hours be x and the height be y.

Equation from two points will be as under:

$(y-y_{1} )=(y_{2} -y_{1} )/(x_{2} -x_{1} )*(x- x_{1} )$

(y-25)=(17-25)/(26-10)* (x-10)

y-25=-8/16 *(x-10)

16(y-25)=-8(x-10)

16y-400=-8x+80

8x+16y=480

Now we have to put x=21 to find the height of candle after 21 years.

8*21+16y=480

168+16y=480

16y=480-168

16y=312

y=312/16

y=19.5

Hence the height of candle after 21 hours is 19.5 cm.

Learn more about equation at brainly.com/question/2972832

#SPJ4

6 0

2 years ago

Could someone help with this?

nexus9112 [7]

Answer:

30t

Step-by-step explanation:

2(15)t

30t

7 0

3 years ago

Read 2 more answers

The experimental probability of a biased coin landing on heads is 0.6

Setler [38]

Answer:

Step-by-step explanation:

1-.60=.4 is the probability for tails

80x .40=32

3 0

3 years ago