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
galben [10]
3 years ago
13

(16 - 6) + f - 9 = 12

Mathematics
2 answers:
CaHeK987 [17]3 years ago
6 0

Answer:

f = 11

Step-by-step explanation:

STALIN [3.7K]3 years ago
5 0

Answer:

F=11

Step-by-step explanation:

parenthesis first

10+f-9=12

combine like terms

1+f=12

-1 from both sides to solve for f

f=12-1

f=11

<em>Hope this helps have a great day</em>

You might be interested in
Please help! Will give branliest for correct answer ! <br> God Bless uu!!
mafiozo [28]

Answer:

Solution given:.

area of traingle EFG=1/2b×h=1/2×7×6=21cm²

area of rectangle ABCD=l×b=(20+9)×7=203cm²

area of rectangle BHIJ=l×b=9×11=99cm²

Total area =21+203+99=323<u>cm²</u><u> </u><u>is</u><u> </u><u>a</u><u> </u><u>required</u><u> </u><u>answer</u>

8 0
3 years ago
Read 2 more answers
Select the correct answer.
Orlov [11]

Answer: C 28.47° latitude and -7.35° longitude

Step-by-step explanation:

6 0
2 years ago
Barry is trying to calculate the distance between point E(3, 1) and point F(4, 7). Which of the following expressions will he us
Masteriza [31]
Barry will use the distance formula:
d = √[(x₂ - x₁)² + (y₂ - y₁)²]
d = √[(4 - 3)² + (7 - 1)²]
d = 6.08 units
7 0
3 years ago
Read 2 more answers
An article suggested that yield strength (ksi) for A36 grade steel is normally distributed with μ = 42 and σ = 5.5.
alexandr1967 [171]

Answer:

a)P( X

We want this probability:

P( X >64)

And using the z score formula given by:

z = \frac{x -\mu}{\sigma}

We got:

P( X >64) =P(Z> \frac{64-42}{5.5}) =P(Z>4)=0.0000316

b) For this part we want to find a value a, such that we satisfy this condition:

P(X>a)=0.25   (a)

P(X   (b)

Both conditions are equivalent on this case. We can use the z score again in order to find the value a.  

As we can see on the figure attached the z value that satisfy the condition with 0.75 of the area on the left and 0.25 of the area on the right it's z=0.674. On this case P(Z<0.674)=0.75 and P(z>0.674)=0.25

If we use condition (b) from previous we have this:

P(X  

P(z

But we know which value of z satisfy the previous equation so then we can do this:

z=0.674

And if we solve for a we got

a=42 +0.674*5.5=45.707

So the value of height that separates the bottom 75% of data from the top 25% is 45.707.  

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Part a

Let X the random variable that represent the heights of a population, and for this case we know the distribution for X is given by:

X \sim N(42,25.5)  

Where \mu=42 and \sigma=5.5

And we want this probability:

P( X

And using the z score formula given by:

z = \frac{x -\mu}{\sigma}

We got:

P( X

We want this probability:

P( X >64)

And using the z score formula given by:

z = \frac{x -\mu}{\sigma}

We got:

P( X >64) =P(Z> \frac{64-42}{5.5}) =P(Z>4)=0.0000316

Part b

For this part we want to find a value a, such that we satisfy this condition:

P(X>a)=0.25   (a)

P(X   (b)

Both conditions are equivalent on this case. We can use the z score again in order to find the value a.  

As we can see on the figure attached the z value that satisfy the condition with 0.75 of the area on the left and 0.25 of the area on the right it's z=0.674. On this case P(Z<0.674)=0.75 and P(z>0.674)=0.25

If we use condition (b) from previous we have this:

P(X  

P(z

But we know which value of z satisfy the previous equation so then we can do this:

z=0.674

And if we solve for a we got

a=42 +0.674*5.5=45.707

So the value of height that separates the bottom 75% of data from the top 25% is 45.707.  

8 0
3 years ago
Identify the slope and y-intercept of 3x-2y=7
DENIUS [597]
Slope=-3/2
y-intercept=-7/2
4 0
3 years ago
Other questions:
  • Pls help me with this and show the work on how u did it step by step ty
    13·1 answer
  • Francois earns a weekly salary of$475 a5.5%commission on sales at a gift shop how much would he earn in a week if he sold $700 g
    7·1 answer
  • A store buys a pack of gum for 33 cents per pack from their supplier.  How much would 12 packs cost?
    14·2 answers
  • 45 plus what equals 90
    6·1 answer
  • 45 points+brainliest Opportunities for IT professionals in the non-IT sector are plentiful. Look around in the business world an
    5·2 answers
  • Sally Harris, a young mother, is twenty-six years old. She wishes to purchase $15,000 of a ten-year term insurance. What will be
    10·2 answers
  • Express 5601 in scientific notation
    7·1 answer
  • How do I do this? it doesn't make sense. ​
    12·1 answer
  • Heeelppp please is for today
    8·2 answers
  • I'll give brainliest:)
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!