1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dangina [55]
3 years ago
7

Evaluate the expression for x=5, y=-3 and z=7 (x2 – z) (22+5)

Mathematics
1 answer:
zepelin [54]3 years ago
8 0

Answer:

81

Step-by-step explanation:

(Refer to image)

Plug in x and z and follow order of operations to simplify the expression

You might be interested in
Select the correct answer. What is the range of this data? (3,3, 0, 8, 7, 10, 2, 6, 12, 0}
Natasha2012 [34]

Answer:

D: 12

Step-by-step explanation:

The range is the difference between the largest value in the date minus the smallest value in the data.

In this set of numbers given, the largest value is 12 and the smallest value is 0

so: 12-0 = 12

The range of this data is 12

8 0
3 years ago
Walter has 1/4 of a yard of string. He used 3/5 of it on a school project. How much string did he use?
zalisa [80]

Answer:

3/20 or .15

Step-by-step explanation:

You need to find 3/5 of 1/4, so you need to multiply

3/5*1/4= 3/20

3/20 or .15

3 0
3 years ago
Find the unit rate.<br><br> 6 2/5 revolutions in 2 2/3 seconds
topjm [15]
1) Convert mixed fractions into fractions.

6 2/5 = ((6*5) + 2) / 5 = 32 / 5
2 2/3 = ((2*3) + 2) / 3 =  8 / 3

2) 32 / 5 ÷ 8 / 3 ; where 32/5 is the 1st fraction and 8/3 is the 2nd fraction
a) Get the reciprocal of the 2nd fraction:
   From 8/3 to 3/8
b) Multiply 1st fraction to the reciprocal of the 2nd fraction
  32 / 5 * 3 / 8 = (32*3) / (5*8) = 96 / 40
c) Simplify the fraction.
96 / 40 divide by 4 will become 24/10.
24 / 10 divide by 2 will become 12 / 5. The simplified fraction of 96/40.

 The unit rate is 12 / 5 = 2 2/5 revolutions per second.
<span>
</span>
7 0
3 years ago
Read 2 more answers
Find the volume of the cone. Round your answer to the nearest tenth. Use 3.14 for n.
Luba_88 [7]

Step-by-step explanation:

use formula

volume of cone =1/3 πr²h

3 0
2 years ago
HELP
ozzi

9514 1404 393

Answer:

  (C)  Step 1: 15x − 20 = 1; Step 2: 15x = 21

Step-by-step explanation:

The first step is to eliminate the parentheses, using the distributive property.

  5(3x − 4) = 1

  15x -20 = 1

The second step is to add 20 to both sides of the equation.

  15x = 21

This pair of steps is shown in the 3rd choice.

_____

<em>Comment on the answers</em>

The distributive property seems to be applied incorrectly a lot of the time. Here, you can choose the correct answer by looking at the result of properly applying the distributive property: 5(3x-4) = 15x-20. Only the correct choice has this as the first step.

3 0
2 years ago
Read 2 more answers
Other questions:
  • Ethan has 3 pounds of mixed nuts. How many ounces of mixed nuts does Ethan have?
    7·1 answer
  • 1,000 kilograms equals 1 _______?
    7·1 answer
  • PLZ HELP FAST!!!!!!!!!!!!​
    9·2 answers
  • What do the vertical lines mean?
    11·1 answer
  • I need the explanation and the answer of 14/40 in simplest form
    5·1 answer
  • Cosx=5/17. Solve for x
    12·2 answers
  • Is 34515 divisible my 9
    9·1 answer
  • Complete the statement. Round to the nearest hundredth if necessary<br> 18 ft = { }yd
    14·2 answers
  • Someone please solve this
    10·1 answer
  • What is the value of l-12l
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!