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
Hitman42 [59]
2 years ago
9

PLEASE HELP!!

Mathematics
1 answer:
siniylev [52]2 years ago
6 0
1.) Substitute into the inequality is it true:
      1 < 2(-4)+5
      1 < -3   False so the answer is b. No
2.) since y < the expression for the line, shade below
You might be interested in
Jon overdrew his checking account and now has a balance of –$75. How much money does Jon need to deposit in his account to break
adell [148]
Cause it’s -$75 he would have to put $75 to achieve a balance of $0
6 0
3 years ago
Read 2 more answers
Not good with factoring could use a hand.
MrRa [10]

The only factoring you need to do is already done for you:

<em>x</em>² + <em>x</em> - 12 = (<em>x</em> + 4) (<em>x</em> - 3)

What you're asked to do is decompose

(3<em>x</em> - 4) / (<em>x</em>² + <em>x</em> - 12)

into partial fractions, i.e. find <em>a</em> and <em>b</em> such that

(3<em>x</em> - 4) / (<em>x</em>² + <em>x</em> - 12) = <em>a</em> / (<em>x</em> + 4) + <em>b</em> / (<em>x</em> - 3)

Multiply both sides by <em>x</em>² + <em>x</em> - 12 :

3<em>x</em> - 4 = <em>a</em> (<em>x</em> - 3) + <em>b</em> (<em>x</em> + 4)

3<em>x</em> - 4 = (<em>a</em> + <em>b</em>) <em>x</em> + (-3<em>a</em> + 4<em>b</em>)

So we have

<em>a</em> + <em>b</em> = 3

-3<em>a</em> + 4<em>b</em> = -4

and solving this system gives

<em>a</em> = 16/7 and <em>b</em> = 5/7

so you should submit the numbers in bold:

(3<em>x</em> - 4) / (<em>x</em>² + <em>x</em> - 12) = 16 / (7 (<em>x</em> + 4)) + 5 / (7 (<em>x</em> - 3))

6 0
2 years ago
2x-2y=22 find the value of y when x equals 2
11111nata11111 [884]

Answer:

y = -9

Step-by-step explanation:

Step 1: Substitute x

2(2) - 2y = 22

Step 2: Isolate y

-2y = 18

Step 3: Divide by -2

y = -9

And you have your final answer!

8 0
3 years ago
Read 2 more answers
A piece of paint cost $400. There is a 25% mark-<br> up. What is the selling price of the painting?
Sliva [168]

Answer:

$500.

Step-by-step explanation:

6 0
3 years ago
If there is a 10% chance of sun tomorrow and a 20% chance of wind and no sun, what is the probability that it is windy, given th
professor190 [17]
Since there are two events happening simultaneously (windy and no sun), we can apply the concept of conditional probability here. P(A|B) = P(A∩B)/P(B) where it means that given B is happening, the probability that A is happening as well is the ratio of the chance for A and B to happen simultaneously over the chance of B to happen. For our case, this can be interpreted as P(A|B): it is the probability that it is windy (A) GIVEN that there is no sun (B) P(A∩B) : chance of wind and no sun P(B) : chance that there is no sun tomorrow The chance of P(A∩B) is already given as 20% or 0.20. Since there is 10% or 0.10 chance of sun, then chances of having no sun tomorrow is (1-0.10) = 0.90. Thus, we have P(A|B) = 0.2/0.9 ≈ 0.22 or 22%. So, answer is B: 22%<span>.</span>
5 0
3 years ago
Read 2 more answers
Other questions:
  • -
    8·1 answer
  • In a random sample of 500 people, 160 had blue eyes. In a group of 2500 people, how many would you expect to have blue eyes?
    12·1 answer
  • KEVIN BOUGHT 3 POUNDS OF TRI-TIP FROM B STREET BUTCHERS FOR $29.97 AND ARNOLD BOUGHT 4 POUNDS OF TRI-TIP FROM MEL"S MEAT MARKET
    14·1 answer
  • During soccer practice, Alexis tries to score a goal 3 times. For each attempt, the coach writes either G (goal) or N (no goal).
    9·2 answers
  • The rectangular prism has lateral faces. The rectangular prism has a surface area of square inches.
    6·1 answer
  • Who can help me on this????
    5·2 answers
  • Solve similar triangles can someone please answer
    7·1 answer
  • Michael is saving to buy his senior ring. The base cost of the ring is $280 plus any upgrades he wants to purchase. If he saves
    6·1 answer
  • How can X - 2/3 = 5/6
    11·1 answer
  • Label the sides with its corresponding ratio in the special right triangle given below. The answer choice may be used more than
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!