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
FrozenT [24]
3 years ago
15

Use the distributive property to find the product of the rational number. 5/2 (- 8/5 + 7/5)

Mathematics
1 answer:
Serjik [45]3 years ago
7 0

9514 1404 393

Answer:

  -1/2

Step-by-step explanation:

The factor outside parentheses multiplies each term inside.

  5/2(-8/5 +7/5)

  = (5/2)(-8/5) +(5/2)(7/5)

  = -8/2 +7/2 = -1/2

You might be interested in
Find the exact value of sin(255∘)
Masteriza [31]

Check the picture below.

\textit{Sum and Difference Identities} \\\\ sin(\alpha + \beta)=sin(\alpha)cos(\beta) + cos(\alpha)sin(\beta) \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ sin(255^o)\implies sin(135^o+120^o) \\\\\\ sin(135^o)cos(120^o)~~ + ~~cos(135^o)sin(120^o) \\\\\\ \left( \cfrac{\sqrt{2}}{2} \right)\left( -\cfrac{1}{2} \right)~~ + ~~\left( -\cfrac{\sqrt{2}}{2} \right)\left( \cfrac{\sqrt{3}}{2} \right)\implies -\cfrac{\sqrt{2}}{4}~~ - ~~\cfrac{\sqrt{6}}{4}\implies \cfrac{-2-\sqrt{6}}{4}

5 0
2 years ago
How tall am i?????????????????????/
Ksju [112]
5’6 - 5’8
that seems like an average height right
5 0
3 years ago
Given: y = 3x - 4.<br><br> For what value of x does y equal zero?
Greeley [361]
X = 4/3 because set y=0.
so 0=3x-4. add 4 to both sides so
4=3x. divide both sides by. 3 and you get x=4/3.
4 0
3 years ago
Read 2 more answers
Suppose that Upper X has a discrete uniform distribution f left-parenthesis x right-parenthesis equals StartLayout left-brace1st
emmasim [6.3K]

Answer:

the probability that the sample mean is greater than 2.1 but less than 2.4 is 0.2444

Step-by-step explanation:

Given the data in the question;

x        f(x)         xp(x)               x²p(x)

1         1/3        0.33333        0.33333

2        1/3        0.66667        1.33333

3        1/3        1.00000        3.0000

∑                    2.0000          4.6667

∑(xp(x)) = 2

∑(x²p(x)) = 4.6667

Variance σ² = ∑(x²) - ∑(x)² = 4.6667 - (2)² = 4.6667 - 4 = 0.6667

standard deviation σ = √variance = √0.6667 = 0.8165

Now since, n = 33 which is greater than 30, we can use normal approximation

for normal distribution z score ( x-μ)/σ

mean μ = 2

standard deviation = 0.817

sample size n = 33

standard of error σₓ = σ/√n = 0.817/√33 = 0.1422

so probability will be;

p( 2.1  < X < 2.4 ) = p(( 2.1-2)/0.1422) <  x"-μ/σₓ  <  p(( 2.4-2)/0.1422)

= 0.70 < Z < 2.81    

=  1 - ( 0.703 < Z < 2.812 )

FROM Z-SC0RE TABLE

=  1 - ( 0.25804 + 0.49752 )

= 1 - 0.75556

p( 2.1  < X < 2.4 ) = 0.2444

Therefore,  the probability that the sample mean is greater than 2.1 but less than 2.4 is 0.2444

7 0
3 years ago
How many sqft is in a rectangle of 360 by 190 feet
monitta

Answer: 68400

Explanation: The question is asking for area so you do base times height. In this case you multiply 360 times 190.

4 0
3 years ago
Other questions:
  • S the relation {(3, 5), (–4, 5), (–5, 0), (1, 1), (4, 0)} a function? explain. type your answer below
    8·1 answer
  • What is the ratio of 10,12
    12·1 answer
  • The museum guide provides 10 brochures telling about the museum's history to each tourist group. If 12 groups visited today, how
    10·2 answers
  • Wwwwwwwwwwwwqqqqqqqqqqqqqqqqqqqq
    10·2 answers
  • Y/16 = 3 pls heeeeeellllpppppppp
    10·2 answers
  • Z+(z-6)-2=-10<br> How donI solve this?
    6·2 answers
  • The earth spins 360 degrees about its axis in 24h. How many degrees does it spin in 10h?
    6·1 answer
  • I need urgent help with this
    9·2 answers
  • Will give 15 points and brainliest
    7·2 answers
  • Question 7 of 10 A medical company tested a new drug for possible side effects. The table shows the relative frequency that a st
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!