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
LUCKY_DIMON [66]
3 years ago
9

The number of positive resl rootd for the expression for -3x³+8x²-7x+10=0 is less than or equal to​

Mathematics
1 answer:
Damm [24]3 years ago
5 0

Step-by-step explanation:

By Descartes' Rule of Signs, f(x) = -3x³ + 8x² - 7x + 10 changes sign 3 times, so there are 1 or 3 positive roots.

You might be interested in
Can some one help me plz??
Hitman42 [59]
The answer is C for this question
5 0
3 years ago
Given <br> l<br> ∥<br> m<br> ∥<br> n<br> l∥m∥n, find the value of x.
lawyer [7]

Answer:

180-63= 117

Step-by-step explanation:

the lines are parallel so the opposite of x is 63. it is a straight line so it adds up to 180

4 0
2 years ago
6×10(6)+7×10(5)+3×10(2)+8×10+2
anastassius [24]

Answer:

852

6×10(6)+7×10(5)+3×10(2)+8×10+2= 852

Step-by-step explanation:

ORDER OF OPERATIONS Will really help you solve this long problem.

Order of operations is PEMDAS.

P-parenthesis

E-exponents

M-multiplication

D-division

A-addition

S-subtraction

6)(10)(6)+(7)(10)(5)+(3)(10)(2)+(8)(10)+2

=(60)(6)+(7)(10)(5)+(3)(10)(2)+(8)(10)+2

=360+(7)(10)(5)+(3)(10)(2)+(8)(10)+2

=360+(70)(5)+(3)(10)(2)+(8)(10)+2

=360+350+(3)(10)(2)+(8)(10)+2

=710+(3)(10)(2)+(8)(10)+2

=710+(30)(2)+(8)(10)+2

=710+60+(8)(10)+2

=770+(8)(10)+2

=770+80+2

=850+2

=852

7 0
3 years ago
What is the missing justification in the proof?
nataly862011 [7]
The missing justification in the proof is
<span>B) Substitution property of equality

The expression for sin</span>² x and cos² x is substituted to the other side of the equation. Since sin x = a/c, then sin² x = a²/c². Similarly, since cos x = b/c, then cos² x = b²/c². Adding to two results to the third statement.
7 0
3 years ago
Read 2 more answers
The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per da
andriy [413]

Answer:

4.1975\cdot 10^{7}

Step-by-step explanation:

We are told that the average human heart beats 1.15\cdot 10^{5} times per day and there are 3.65\cdot 10^{2} days in one year.

To find number of heart beats in one year we will multiply number of heart beats in one day by number of days in one year.

1.15\cdot 10^{5}\times 3.65\cdot 10^{2}

Now we will solve this problem using exponent properties.

1.15 \times 3.65\cdot 10^{2+5}

1.15 \times 3.65\cdot 10^{7}

4.1975\cdot 10^{7}

Our answer is in scientific notation we can represent it in standard form as 4.1975\cdot 10^{7}=4.1975*10000000=41975000 times.

Therefore, average human heart beats in one year 4.1975\cdot 10^{7} or 41975000 times.

4 0
3 years ago
Read 2 more answers
Other questions:
  • 2x - 4y = 12 <br> 3x - 5y = 20
    15·1 answer
  • Two numbers total 66 and have a difference of 16
    7·1 answer
  • What the percent of 160 is 56? Use the bar model
    11·1 answer
  • Choose the answer based on the most efficient method as presented in the lesson. If the first step in the solution of the equati
    15·1 answer
  • All of the following are equivalent except _____.<br> 7x 2<br> 4x + 3x<br> (4 + 3)x<br> 7x
    13·2 answers
  • VOTING BRAINLIEST!!!!
    12·2 answers
  • The metric system is based on powers of what number?
    12·2 answers
  • The probability that a student will take loans to pay for their undergraduate education is 0.85, and the probability that a stud
    8·1 answer
  • Please give me the ans​
    15·1 answer
  • Which number is prime? 4 , 9, 21 , 23
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!