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
slega [8]
2 years ago
8

(2 − 3)(1 − ) − (3 − )(3 + )

Mathematics
1 answer:
Lostsunrise [7]2 years ago
4 0

Answer:

your equation is wrong!! the answer is 10

Step-by-step explanation:

the correct order of the equation is:

(2-3)(-1)-(-3)(3)

first, solve in the parentheses from left to right:

(2-3)(-1)-(-3)(3)=\\(-1)(-1)-(-3)(3)=\\1-(-3)(3)=\\

If we have 2 negative signs then we will change them to positive :

1-(-3)(3)=\\1+3(3)\\

now we have an equation with parentheses, we will multiply 3(3)\\ because the parentheses go first.

1+3(3)=\\1+9=10

You might be interested in
Solve for p...<br> -5(p + 3/5) = -4
Alla [95]

Step-by-step explanation:

-5(p + 3/5 ) = -4

-5p - 3/5 *5 = -4

-5p - 3 = - 4

-5p = -4 +3

-5p = -1

therefore p = 1/ 5

7 0
3 years ago
The following data gives the speeds (in mph), as measured by radar, of 10 cars traveling north on I-15. 76 72 80 68 76 74 71 78
____ [38]

Answer:

71.123 mph ≤ μ ≤ 77.277 mph

Step-by-step explanation:

Taking into account that the speed of all cars traveling on this highway have a normal distribution and we can only know the mean and the standard deviation of the sample, the confidence interval for the mean is calculated as:

m-t_{a/2,n-1}\frac{s}{\sqrt{n} } ≤ μ ≤ m+t_{a/2,n-1}\frac{s}{\sqrt{n} }

Where m is the mean of the sample, s is the standard deviation of the sample, n is the size of the sample, μ is the mean speed of all cars, and t_{a/2,n-1} is the number for t-student distribution where a/2 is the amount of area in one tail and n-1 are the degrees of freedom.

the mean and the standard deviation of the sample are equal to 74.2 and 5.3083 respectively, the size of the sample is 10, the distribution t- student has 9 degrees of freedom and the value of a is 10%.

So, if we replace m by 74.2, s by 5.3083, n by 10 and t_{0.05,9} by 1.8331, we get that the 90% confidence interval for the mean speed is:

74.2-(1.8331)\frac{5.3083}{\sqrt{10} } ≤ μ ≤ 74.2+(1.8331)\frac{5.3083}{\sqrt{10} }

74.2 - 3.077 ≤ μ ≤ 74.2 + 3.077

71.123 ≤ μ ≤ 77.277

8 0
2 years ago
Can somebody please answers this thank you , just a, b, and c .
Shkiper50 [21]

Answer:

A) - 8 - 13 +4

B)+4 +7 - 2

C)-7 +3 - 20

5 0
2 years ago
Y = 8x- 18<br> y-intercept:<br><br> x-intercept <br> :
dexar [7]

Answer:

the y-intercept is -18

Step-by-step explanation:

hope i couldve help :)

6 0
3 years ago
What is the answer to <br> 2/5x &gt;7
goblinko [34]
X>35/2

That’s the answer
7 0
2 years ago
Other questions:
  • Any number raised to the power of zero is zero true or false
    14·2 answers
  • If f(x) = 4x + 5, what is the value of f(-3)?<br> (1) -2<br> (3) 17<br> (2) - 7<br> (4) 4
    15·1 answer
  • What’s —-1+1 just testing this app btw
    13·2 answers
  • Look at the steps used when solving 4(x−3) = 8
    11·2 answers
  • 5. The base area of a prism is 150 square feet. Its height is 8 feet.
    10·1 answer
  • Grandpa's age is 6 years less than 6 times juniors age. their sum of their age is 78.
    7·2 answers
  • Anyone here really smart in technology math ?
    11·1 answer
  • Which equation has no solution?
    6·1 answer
  • 8/9+ (-5/6) divided by 1/6
    13·1 answer
  • At a graduation dinner, an equal number of guests were seated at each of 12 large tables, and 8
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!