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
andrew-mc [135]
3 years ago
8

{[(30−60)÷(−30)]2−15}÷(−7) the -30 is squared

Mathematics
2 answers:
Anit [1.1K]3 years ago
5 0
1 is y = 15x in 9 years he will have saved $13,500
lyudmila [28]3 years ago
3 0

Answer:

Step-by-step explanation:

1 is y = 15x, in 9 years he will have saved $13,500

2 is x2 − 4x − 211 is y = 15x, in 9 years he will have saved $13,500

2 is x2 − 4x − 21

You might be interested in
What is 160% of 19? What is 0.9% of 54? What is 15% of 376?
mafiozo [28]
160% of 19 is 30.4

Convert 160 into a decimal: 160%/100 = 1.6
Multiply the decimal by 19: 1.6 × 19 = 30.4 <-- our answer.
------

0.9% of 54 is 0.486

Convert 0.9% in a decimal: 0.9%/100 = 0.009
Multiply the decimal by 54: 0.009 × 54 = 0.486 <-- our answer.
-------

15% of 376 is 56.4

Convert the percentage into a decimal: 15%/100 = 0.15
Multiply the decimal by 376: 0.15 × 376 = 56.4 <-- our answer.


8 0
3 years ago
How many ounces of 20% hydrochloric acid and 70% hydrochloric acid must be mixed to obtain 20 ounces of 50% hydrochloric acid so
Sliva [168]
I can’t solve it sorry....................................................<3
5 0
3 years ago
Select the correct interpretation of the probability of getting an 11 when a pair of dice is rolled. Interpret an event as signi
JulijaS [17]

Answer:

1/18

Step-by-step explanation:

We are considering that we have 2 dices with 6 faces each (so, the probability to gettig any face in any dish is 1/6). To get an 11, we only have two ways to obtain it:

Dice 1= 6 and Dice 2 =5

or

Dice 1= 5 and Dice 2 =6

So, the probability of the event is given as:

P(Dice1=5 ∧ Dice2=6) ∪ P(Dice1=6 ∧ Dice2=5) = P(Dice1=5) x P(Dice2=6) + P(Dice1=6) x P(Dice2=5) = 1/6 x 1/6 + 1/6 x 1/6 = 1/36 + 1/36 = 2/36 = 1/18.

As 1/18 = 0,055, and 0,055 > 0,05, we consider the event as not significative (according to the definition of significance in the sentence).

7 0
4 years ago
Read 2 more answers
8/1 ÷ 1/4 what's the result?
jonny [76]
The correct answer is 32
3 0
4 years ago
Read 2 more answers
Somebody help hurry ASAP
Alex777 [14]

Answer:

the answer is 1

Step-by-step explanation:

the bottom says 6 and the other top says 7 so the only right answer is 1

7 0
3 years ago
Other questions:
  • Lissette's age is 3 years less than twice the age of her sister Francesca. Lissette is 13. Write an equation that can be used to
    10·1 answer
  • T is the midpoint of MV. If MT = 6x and TV = 3x + 3, find the value of x, MT, TV, and MV.
    6·2 answers
  • At a pet show, There are dogs, cats and rabbits. There are 480 contestants altogether. 1/2 of the contestants are cats, 1/6 of t
    9·1 answer
  • In 2011 I he population of Laos was about 6.586 ×10^6
    5·1 answer
  • Nicole works at a flower shop.
    6·1 answer
  • Find the slope of the line that passes through the points (2, 4) and (6, 12)
    10·1 answer
  • What is the answer for r?<br> 13=r/9+8
    6·2 answers
  • Help show your work to
    13·2 answers
  • What is the area of the base
    15·2 answers
  • A bakery owner sold her last two cakes for $36 each. She made a profit of 24% on one cake, but had an 8% loss on the other. What
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!