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
Paladinen [302]
3 years ago
7

Add: (4a.”+ 6a2- 10a - 4) +(6a + a²+ a + 7)

Mathematics
1 answer:
sineoko [7]3 years ago
3 0
(2a-1 )exponent two•(3a + 2) exponent 2• (4a-3) exponent 2
You might be interested in
Which is the graph of y = ⌊x⌋ – 2?
antoniya [11.8K]

Answer:

please mark me brainliest and follow me my friend.

3 0
3 years ago
Read 2 more answers
1. Jan spends part of her year as a member of a
antiseptic1488 [7]

Answer:

13 months in a half......

3 0
3 years ago
The slope of the line below is -2. use the coordinates of the labeled point (4,-6) to find a point - slope equation of the line
devlian [24]

Answer:

A

Step-by-step explanation:

Use the equation y-y1=m(x-x1) and sub in the values of the provided information

3 0
2 years ago
A consumer organization inspecting new cars found that many had appearance defects (dents, scratches, paint chips, etc.). While
Murljashka [212]

Answer:

The expected number of appearance defects in a new car  = 0.64

standard deviation = 0.93(approximately)

Step-by-step explanation:

Given -

7% had exactly three, 11% exactly two, and 21% only one defect in cars.

Let X be no of defects in a car

P(X=3) = .07 , P(X=2) = .11 , P(X=3) = .21

P(X=0 ) = 1 - .07 - .11 - .21 = 0.61

The expected number of appearance defects in a new car =

E(X) = \nu = = \sum X P(X) =3\times 0.07 + 2\times0.11 + 3\times0.21 + 0\times0.61 = 0.64

\sigma^{2}  = variation of E(X) = \sum (X - \nu) ^{2}P(X) = (3 - 0.64) ^{2}\times0.07 + (2 - 0.64) ^{2}\times0.11 + (1 - 0.64) ^{2}\times0.21 + (0 - 0.64) ^{2}\times0.61

 = (2.36) ^{2}\times0.07 + (1.36) ^{2}\times0.11 + (.36) ^{2}\times0.21 + ( 0.64) ^{2}\times0.61 = 0.8704

standard deviation  =  \sqrt{\sigma^{2}} = \sqrt{0.8704^{2}} = 0.93(approximately)

4 0
3 years ago
Question 7 of 10
Mama L [17]

Answer:

B

Step-by-step explanation:

Given a quadratic equation in standard form

ax² + bx + c = 0 ( a ≠ 0 )

Then the discriminant is

Δ = b² - 4ac

• If b² - 4ac > 0 then 2 real irrational roots

• If b² - 4ac > 0 and a perfect square then 2 real rational roots

• If b² - 4ac = 0 then 1 real double root

• If b² - 4ac < 0 then 2 complex roots

Given

x² + 3x - 7 = 0 ← in standard form

with a = 1, b = 3, c = - 7 , then

b² - 4ac

= 3² - (4 × 1 × - 7) = 9 + 28 = 37

Since b² - 4ac > 0 then 2 real irrational roots

8 0
3 years ago
Other questions:
  • The submarine is cruising at a depth of 50 meters, then dives 75 meters, then ascends (moves in the direction of the surface )60
    6·1 answer
  • Help please please please:((((
    12·1 answer
  • MATHEMATICS Matemáticas
    11·1 answer
  • Solve the inequality -5/4(8x+4)&lt;6-3x. Show your work.
    6·2 answers
  • HURRY
    12·1 answer
  • What is the answer for 12 and 13
    15·1 answer
  • Help Please im struggling dont have to answer just please explain what I have to do
    6·2 answers
  • Taylor has a $30.00 gift card that she can spend at the store. She has already bought a $9.00 picture frame. What is the most sh
    11·1 answer
  • I am an odd number between 10 and 20. I can be divided by 3. What number am I?
    8·2 answers
  • Find the missing measurement
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!