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
Natasha2012 [34]
2 years ago
6

Can Anybody Check My Answers for both 3 and 4. I will give Brainliest Answer.

Mathematics
1 answer:
romanna [79]2 years ago
8 0

Answer:

yea you correct

Step-by-step explanation:

nice work

You might be interested in
HELP ME PLEASE, ILL GIVE BRAINLIEST TO YOU Each year, the Department of Water Works measures the chloride concentration level in
Lunna [17]
- 1 1/3 - 2  1/5

= -4/3 - 11/5

= -20/15 - 33/15

= -53/15 

= -3 8/15 mg/L


3 0
3 years ago
Read 2 more answers
What are the properties of real numbers?
expeople1 [14]
Https://mathbitsnotebook.com/Algebra1/RealNumbers/RNProp.html

3 0
2 years ago
which of the following correctly describes the end behavior of the polynomial function, f(x)=2x^4-3x^2+2x
inna [77]

Answer:

Both ends go up.


Step-by-step explanation:


4 0
3 years ago
Read 2 more answers
Given that f(x) = x2 + 10x + 21 and g(x) = x + 7, find (f•g)(x) and express
sammy [17]

Answer:

<h2>(f.g)x =  {x}^{2}  + 24x + 140</h2>

Step-by-step explanation:

given \\ f(x) = x ^{2}  + 10x + 21 \: and \: g(x) = x + 7

as \: we \: know \: (f.g)x \: is \: same \: as

f(g(x))

so \:

f(x + 7) = ( x + 7) ^{2}  + 10(x + 7) + 21

f(x + 7) =  {x}^{2}  + 14x + 49 + 10x + 70 + 21

f(x + 7) = x^{2}  + 24x + 140

therefore

(f.g)x =  {x}^{2}  + 24x + 140

3 0
3 years ago
scientist needs 120 liters of a 20% acid solution for an experiment. The lab has available a 25% and a 10% solution. How many li
sattari [20]

Answer:

The scientist needs 80 liters of 25% solution and 40 liters of 10% solution.

Step-by-step explanation:

If x is the liters of 25% solution, and y is the liters of 10% solution, then:

x + y = 120

0.25x + 0.10y = 0.20(120)

Solve the system of equations using substitution or elimination.  Using substitution:

0.25x + 0.10(120 − x) = 0.20(120)

0.25x + 12 − 0.10x = 24

0.15x = 12

x = 80

y = 40

The scientist needs 80 liters of 25% solution and 40 liters of 10% solution.

4 0
2 years ago
Other questions:
  • I need the answers someone helppppp..
    12·1 answer
  • Please help me!!!! Super confused
    11·1 answer
  • Donna is running a track it takes her 10 minutes to run 6 laps if she keeps running at the same speed how long will it take her
    12·2 answers
  • Match the equation with the graph -0.4x-0.8y=0.10
    9·1 answer
  • What is 18÷15÷12÷9= tell me what is this answer pleas tell me
    5·2 answers
  • 17n – 5n2 + 2n3; n = -1<br> I need help plz
    7·2 answers
  • What's the answer to 6 = s/4
    13·1 answer
  • I understand but I got confused solving all three of these help.
    8·2 answers
  • If the sides of a right triangle are 6 feet and 8 feet, what is the length of the hypotenuse? *
    13·2 answers
  • Hi, another math addition fraction question, please help.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!