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
Vedmedyk [2.9K]
2 years ago
11

Multiply -3x(4x - 5)

Mathematics
2 answers:
Burka [1]2 years ago
5 0
Hopes this helps if right please mark as brainlist:

Answer: -12x^2 + 15x
Elena-2011 [213]2 years ago
4 0

Answer:

-12x^2+15x

Step-by-step explanation:

-3x(4x-5)

Distributive property:

-3x*4x-(-3x)*5

-3*4x^2+3*5x

Simplify:

-12x^2+15x

You might be interested in
Help me plz and thank you
Kay [80]
The second one - 6/21
3 0
3 years ago
At a given time of day, the ratio of the height of an object to the length of its shadow is the same for all objects. If a 4-ft
Gre4nikov [31]
4/0.8=X/7.04
0.8x=28.04
X= 35.05’
4 0
2 years ago
The product of two consecutive positive integers is greater than their sum by 209. Find these numbers.
Delicious77 [7]

Answer:

I think it is -4 and -3

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
In a quality control test of parts manufactured at Dabco Corporation, an engineer sampled parts produced on the first, second, a
sammy [17]

Answer:

p value = 0.0174

Conclusion : we reject the null hypothesis

Step-by-step explanation:

Thinking step:

We need to perform a test to determine if the proportion of the good parts is the same for all three shifts at a significance level of \alpha = 0.05

Assumption : all the population for each or the three shifts is not equal.

Calculation:

Let p₁ be the sample of the first shift

     p₂ be the sample of the second shift

     p₃ be the sample of the third shift

According to the null hypothesis

H₀ = p₁ = p₂ = p₃

In other words, all the population sample proportions are equal.

Alternatively, we can assume that the three shift are not equal p₁ ≠ p₂ ≠ p₃

Tabulating and performing the \chi² test gives 8.10

degrees of freedom:

df = k - 1

   = 3 - 1 = 2

Thus the degree of freedom is 2

Solving using the MINITAB software gives: p = 0.174

The solution shows that the p value < level of significance, then p-value lies in the range 0.0174≤\alpha≤0.05

Therefore, we reject the null hypothesis based on the fact that the three shifts are not equal.

5 0
3 years ago
Students on an academic team took a test to enter a math competition. They could take the test twice. Some students improved the
katrin [286]

Juanita had the largest change. (+4 points)

6 0
3 years ago
Other questions:
  • A shape is made of 12 right triangles of equal size each triangle has a base of 4 cm and a height of 5 cm what is the total area
    7·1 answer
  • Solve for x.<br><br> 8x=4x−32
    13·1 answer
  • Please help with 24-26
    14·2 answers
  • a salesperson receives a 2.5% commission on sales. what commission does the salesperson receive for $8000 in sales?
    9·1 answer
  • 2.25meter long and 1.8 meters wide what is the area
    12·1 answer
  • Nomial function using the factored form.<br> } (x) = (x + 5)3(x - 9)(x + 1)<br> Dfghffffvntvvtdcg
    5·1 answer
  • If f(x)=2x+1 and g(x)=x^2, find g(f(3)).
    5·1 answer
  • Which ordered pair is a solution to the equation y=5x-25?
    10·2 answers
  • Which would you simplify in order to evaluate the expression when the value of the variable is 2?
    11·2 answers
  • 9,003,809,123 in word form
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!