1. Evaluate the expression when x=2, y = 3, and z= -9:

Answers

Answer 1
Answer:

Answer:

-7

Step-by-step explanation:

substitute the given values into the expression

xy-x

(-2 times 3)-1

-6 - 1 = -7


Related Questions

Jerry wonders "how many $10 bills are equal to a $1,000 bill?
How can i solve this exponent
If a population consists of 10,000,000 people and census is taken, how many people are sampled?
What is 37% of 293? Plz help me people this is for tomorrow
In pattern number 9,12,15,18,21 what come next

What is an equivalent fraction for 4 21/4

Answers

The answer is 5 1/4, because 4 goes into 21, 5 times, adding 1 whole number making it 5. also, 21-20=1 (just giving all information), and, the denominator always stays the same, but not needed for multiplying and dividing (cuz dividing is almost the same as multiplying). So the answer to ur question is 5 1/4. Hope it helps! ;)
4 and 21/4
9 and 1/4
Happy to Help!

Solve 2c+5=c+8
hellppp mee pleasee

Answers

2c+5=c+8
-c -c
c+5=8
-5 -5
c=3
Hello,

Shall we begin?

2c+5 = c + 8
2c - c = 8 - 5
c = 3
 
Answers: c = 3

Name a pair of fractions that use the least common denominator and are equivalent to 9/10 and 5/6

Answers

The fractions that use the least common denominator and are equivalent to 9/10 and 5/6 are 27/30 and 25/30 respectively

Given:

9/10

5/6

find the least common multiple of the denominators 10 and 6

10 = 10, 20, 30, 40, 50

6 = 6, 12, 18, 24, 30, 36, 42

The least common multiple is 30

find an equivalent fraction that has 30 as the denominator using x as numerator

9/10 = x/30

9 × 30 = 10 × x

270 = 10x

x = 270/10

x = 27

5/6 = x/30

5 × 30 = 6 × x

150 = 6x

x = 150/6

x = 25

Therefore, the pair of fractions that use the least common denominator and are equivalent to 9/10 and 5/6 are 27/30 and 25/30 respectively

Read more:

brainly.com/question/10600831

The Lowest Common Denominator is 30
9/10 = 27/30
5/6 = 25/30

Two increased by the product of a number and 9 is greater than or equal to 25.

Answers

Answer:

x≥2.56

Step-by-step explanation:

first we can write the inequality

2+9x≥25

we can now solve this with algebra

9x≥23

x≥2.56

The median of the data set is 81 what number is missing in data set 82, 87, 77, 70, 80, 88

Answers

The missing dataset is 81 at the 4th position.

We have the following data set -

82, 87, 77, 70, 80, 88

whose Median is -  81

We have to find out the missing data in this dataset.

What is the formula to find the Median of a set of odd number of elements (say N) ?

If a set consist of odd number of elements, then the median of that set of numbers is the is the element at the position ((N+1)/(2)) ^(th).

Let the missing element be x. Now, the data set becomes -

82, 87, 77, 70, 80, 88, x

To total number of elements in the dataset = 7, which is a odd number.

The element at the ((N+1)/(2)) ^(th) position for odd number of elements equals to Median which is equal to 81.

Hence, the missing dataset is 81 at the position -    ((7+1)/(2)) ^(th) = (8)/(2) = 4th position.

To solve more questions on median, visit the link below -

brainly.com/question/9820885

#SPJ5

the number that missing is clearly 81

Part B) Which of the following functions most appropriately models the data, where x represents the number of millions of dollars of revenue from Tallahassee theaters?

f(x) = -0.805x + 38.967
f(x) = 0.805x + 38.967
f(x) = -0.001x2 - 0.543x + 37.389
f(x) = 0.001x2 - 0.543x + 37.389

Answers

The correct answer for the data is (d) f(x) = 0.001x² - 0.543x + 37.389.

What is an expression?

To determine which function most appropriately models the data, we need to examine the characteristics of the data and compare them with the characteristics of the functions.

The data represents the revenue from Tallahassee theaters, which means that the revenue is likely to increase as the number of theaters and the number of people attending the theaters increases. Therefore, we can eliminate options (a) and (b) because they have negative coefficients on x, which would indicate a decreasing revenue as x increases.

Option (c) is a quadraticfunction, which allows for a more complex relationship between the revenueand the number of theaters. However, the coefficient on the x² term is very small (0.001), which suggests that the quadratic term has little effect on the revenue compared to the linear term. In addition, the constant term (37.389) is relatively low, which would imply a low revenue even when the number of theaters is zero.

Option (d) is also a quadratic function, but it has a larger coefficient on the x² term (0.001) and a higher constant term (37.389), which would result in a higher revenue even when the number of theaters is zero. Therefore, option (d) is the most appropriate function to model the data.

So, the correct answer is (d) f(x) = 0.001x² - 0.543x + 37.389.

To know more about an expression follow

brainly.com/question/21859959

#SPJ7

Answer:

its c

Step-by-step explanation: