Answer:
The answer is "0.6827".
Step-by-step explanation:
[tex]\bold{X \to N(\mu = 25, \sigma^2 = 16)}[/tex]
[tex]\to P(21 < X < 29) = P(\frac {21-25}{4} < \frac{X- \mu}{\sigma}< \frac{29-25}{4})[/tex]
[tex]= P(-1 < Z< 1)\\\\= P(Z> -1)-P(Z>1)\\\\= 1-P(Z< -1)-P(Z>1)\\\\= 1-P(Z> 1)-P(Z>1)\\\\= 1- 2 \times P(Z>1)\\\\=1-2 \times 0.15866 \\\\ = 1- 0.31732\\\\=0.6827[/tex]
Find the value of the following in its simplest form.
2/5 divided by 4
Write your answer as a fraction in the form: 1/3
Will mark the brainliest boys✅
Answer: 1
Step-by-step explanation:
Id hari bought a watch of Rs 525 with 15% discount then what is the selling price of the watch after discount?
Step-by-step explanation:
Cost price of the watch = $525
Discount percentage = 15%
So selling price = 525 - 15% of 525
= 15/100 x 525 = 262.5
Selling price = 525 - 262.5 = $262.5
Selling price = $262.5
What is the 2/6 equal to
Answer:
2/6 equals 0.3333333333333 and many more threes
Step-by-step explanation:
Please help I’ll Mark brainliest
Answer:
y=9/2x-5
Step-by-step explanation:
I used desmos and messed around, but I guarantee that this is correct
WILL GIVE BRAINLIEST!!!! if you show your work...
Answer:
(x² + 7x + 6) ÷ (x² + 2x + 1)
This should be in the form of a fraction, I just don't know how to format it that way on here.
Step-by-step explanation:
Since your denominators are equal on both fractions, you just need to subtract your numerators.
3x² + 9x + 12 - (2x² + 2x + 6)
When there is a - in front of an expression in parenthesis, you should change the sign of each term in the expression of the numerator being subtracted.
So this:
2x² + 2x + 6
Will become this:
2x² - 2x - 6
This is how it will look:
3x² + 9x + 12 - 2x² - 2x - 6
Now all you have to do is collect the like terms.
3x² and -2x² are like terms so you will add them together: 3x² + (-2x²) = 3x² - 2x² = x²
This is how your numerator should look so far:
x² + 9x + 12 - 2x - 6
Now we move on to the next like terms.
9x and -2x are like terms so we add them together: 9x + (-2x) = 9x - 2x = 7x
This is how your numerator should look so far:
x² + 7x + 12 - 6
Now we move on to the last set of like terms.
12 and -6 are like terms so we add them together: 12 + (-6) = 12 - 6 = 6
This is how your numerator should be now:
x² + 7x + 6
Now all you have to do is put your numerator on top of your denominator which is the same as in the start of your equation (x² + 2x + 1).
You are done! I hope this was clear and you understand :)
factorise x^2 - 3x + 2
Answer:
(x - 1)(x - 2)
Step-by-step explanation:
x² - 3x + 2
x² - x - 2x + 2
x(x - 1) - 2(x - 1)
(x - 1)(x - 2)
-TheUnknownScientist
7+2d < -3d + 8 pls help me solve this question
Answer:
d < 0.2.
Step-by-step explanation:
7+2d < -3d + 8
2d + 3d < 8 - 7
5d < 1
d < 0.2.
Meliza wanted to do some shopping on iTunes. She bought one movie for $6.99 and then by 10 songs. Releases total iPhones cost was $21.99. How much does each song cost? Write your answer in a complete sentence
Answer:
1.5 for each song.
Step-by-step explanation:
subtract $6.99 by $21.99 = 15 divided by 10 = 1.5
The difference between 7 and X.
Answer:
6
Step-by-step explanation: yuh
imjp im srry
Answer:
7 is is a constant term and x is a variable
Step-by-step explanation:
Hope you got it.
If you are an expert in your field, the purpose of your presentation will remain the same for all types of presentations.
True
False
Answer: False I'm pretty sure
Step-by-step explanation:
Answer:
FALSE
Step-by-step explanation:
If you are an expert in your field, the purpose of your presentation will have to be changed, it can't be same for all types of presentations.
What is the equation of the line through the origin and (7, 2)?
A. y = 2x
O B. y = 7/2 x
C. y = 2/7 x
D. y = 7x
C. y = 2/7 x
When x = 7, y = 2
(2) = (2/7)(7)
2 = 2
The height of the TEXAM building is 636
feet. A flagpole extends from the building at
a point one-sixth of the distance from the
ground to the roof. How many yards from
the ground is the flagpole mounted?
Answer:
Step-by-step explanation:
First convert 636 feet to yards. That is 212 yards. If the flagpole is 1/6 of the distance from the ground to the roof, it is 1/6 of the height of the building, or
1/6(212) which is 35 1/3 yards off the ground. Remember that the word "of" means to multiply.
How much would a bicycle cost if it were marked down 15% from its original price of $289
Answer:
$260.65
Step-by-step explanation:
189/100=1.89
1.89x15=28.35
289-28.35=260.65
Have a good day:)
Answer:
$245.65
Step-by-step explanation:
1. Determine how much is being spent.
- You are paying for only 85% of the bike since it is discounted by 15%.
2. Multiply 0.85 and 289.
- If you are only paying for 85% of the bike, that is what needs to be found.
Mila had 2.5 gallons of sweet tea to share with her 7 classmates. How many gallons of sweet tea does each person get?
Answer:
0.36 gallon
Step-by-step explanation:
Mila has 2.5 gallons of sweet tea to share with her 7 classmates
Therefore the amount of tea in which each person will get can be calculated as follows.
= 2.5/7
= 0.36 gallons
Hence each classmate will get 0.36 gallon of sweet tea
HELP! WILL GIVE BRANLIEST!
Answer:
3/16
Step-by-step explanation:
(3/7)/4=3/16
HELP ME!!
Large balloons are sold in packages of 12. Select the expressions that can represent the total number of balloons in p packages of large balloons.
A. 12 – p
B. 12 × p
C. p + 12
D. p ÷ 12
E. 12p
Answer:
B
jwjsjshsdhdhdhdhshdjjddjdj
Answer:
the answer is 12p
Step-by-step explanation:
Amelia has 120 ten-dollar bills and 75 twenty-dollar bills. What is the ratio of ten-dollar bills to twenty-dollar bills?
• Do not compare the money values.
• Simplify your answer.
• Enter your answer as a fraction.
Provide your answer below:
3
E FEEDBACK
MORE INSTRUCTION
SUBMIT
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Answer:
12/3.6 Because you divide 120 by 10 and you get 12 then you divide 75 by twenty and get 3.6 I think hope this helps
1. If the discriminant of a quadratic equation is zero, what do you know about the type and number of roots of the quadratic equation?
A. The quadratic equation has one real number root.
B. The quadratic equation has one imaginary and one real number root.
C. The quadratic equation has two imaginary number roots.
D. The quadratic equation has two distinct real number roots.
Answer:
C
Step-by-step explanation:
Using the concept of the discriminant of a quadratic equation, the correct option is:
A. The quadratic equation has one real number root.
--------------------------
A quadratic equation is given by:
[tex]y = ax^2 + bx + c[/tex]
The discriminant is:
[tex]\Delta = b^2 - 4ac[/tex]
If the discriminant is positive, that is, [tex]\mathbf{\Delta > 0}[/tex], the equation has two distinct real roots.If the discriminant is zero, that is, [tex]\mathbf{\Delta = 0}[/tex], the equation has two equal real roots, which is also considered one real root.If the discriminant is negative, that is, [tex]\mathbf{\Delta < 0}[/tex], the square root of a negative number will be calculated, and thus, the equation has two imaginary number roots.In this question, [tex]\Delta = 0[/tex], thus, one real root, option A.A similar problem is given at https://brainly.com/question/2288755
Can someone help me with this? Thanks!
Answer:
b=4
Step-by-step explanation:
4b+5=1+5b (subtract 4b on both sides to get the b's together)
-4b -4b
5=1+5b-4b (subtract 1 from both sides)
-1 -1
4=1b (divide by 1)
b=4
Can someone help and explain and do the solution pls :(
Consider ∆JWZ and ∆JKZ
WZ~KJ (given)
/ WZJ~/ KJZ (given)
JZ~JZ (common)
Therefore,
∆JWZ~∆JKZ by SAS congruence rule.
JW~ZK by CPCT.
What is the range of the function y = x2? all real numbers x ≥ 0 y ≥ 0
Answer:
Step-by-step explanation:
Todos los reales
FAST 100 POINTS Shirabi spent $208 on a sewing machine to make purses. She spends a total of $10 on thread, fabric, and accessories for each purse and plans to charge $36 for each purse. The equation represents her break-even point, when x represents the number of purses sold. 208 + 10x = 36x How many purses must she sell in order to break even? 5 6 7 8
Answer:
Required Answer:-First write the given equation[tex]\qquad\quad {:}\leadsto\sf 208+10x=36x [/tex]
interchange both sides[tex]\qquad\quad {:}\leadsto\sf 208=36x-10x [/tex]
[tex]\qquad\quad {:}\leadsto\sf 26x=208[/tex]
[tex]\qquad\quad {:}\leadsto\sf x={\dfrac{208}{26}}[/tex]
[tex]\qquad\quad {:}\leadsto\sf x=6 [/tex]
Hence correct answer is 6 pursesAnswer:
6
Step-by-step explanation:
i think
Tanner collected 360 cans and bottles while fundraising for his baseball team. This was 40% of what Reggie collected. How many cans and bottles did Reggie collect? (Hint: Use Part = Percent x Whole or use a tape diagram)
Answer: the answer is 504!
Step-by-step explanation:
360*0.40=144
so they said 40% reggie collected main mor than 40% collected so you need to do add like 360+144=504
what is the weight of the bird in grams on the scale below?
Anna is working at a fast food restaurant and made $45.00 for 6 hours. Allison is working at a retail store and made $50.75 for 7 hours.
If both girls worked for 10 hours, which girl would make more money and how much would she make?
Answer:
anna would make more money; she would make $75
Step-by-step explanation:
Answer:
anna 75.00
Step-by-step explanation:
5 Practice
Question 10a
A rectangle is 18 feet long and 14 feet wide.
The area of the rectangle is
square feet.
The solution is
O Search
How do I solve this prob
Answer:
Given - A rectangle of length 18 feet and wide 14 feet
To find - Area
Solution -
Area of rectangle = Length * Breadth
=
[tex]18 \times 14[/tex]
[tex]252[/tex] square feet
18. A store sells two different kinds of rulers, plastic and wood. The receipts show that they have sold 35 total rulers today. The plastic rulers cost $2 each and the wood rulers cost $3 each. $82 worth of rulers were sold today. How many of each type of ruler were sold?
Answer:
12 wooden rulers
23 plastic rulers
Step-by-step explanation:
Total rulers sold - 35
Total profit - $82
1 wooden ruler - $3
1 plastic ruler - $2
$3 x 12 = $36
$2 x 23 = $46
$46 + $36 = $82
12 + 23 = 35 rulers
The store has sold 12 wooden rulers and 23 plastic rulers today.
What are linear and non-linear functions?A straight line on the coordinate plane is represented by a linear function. As an illustration, the equation y = 3x – 2 depicts a linear function because it is a straight line in the coordinate plane.
Any function whose graph is not a straight line is said to be nonlinear. Any curve other than a straight line can be a graph of it.
An example of a non-linear function is a quadratic function.
Let, The number of plastic rulers be denoted by 'P' and the number of wooden rulers is denoted by 'W'.
Given, They have sold 35 total rulers today.
Therefore,
P + W = 35...(i)
Also given, $82 worth of rulers were sold today.
Therefore,
2P + 3W = 82...(ii)
Multiplying the eqn(i) by 2 and subtracting from eqn(ii) we get,
W = 12 and P + 12 = 35 hence P = 23.
So, they sold 12 wooden rulers and 23 plastic rulers.
learn more about linear equations here :
https://brainly.com/question/29739212
#SPJ5
A. 5
B. 7
C. 31
D. 11
Answer:
the answer is five by using the formula for the area of a trapezoid you have to add and subtract like terms...... blah blah blah... at the end you divide both sides by _8 and there u have 5 ur welcome lol
50 points please help :(
[tex] \frac{(y - 1) {}^{2} }{9 } - \frac{( {x - 2)}^{2} }{100} = 1[/tex]
[tex] \frac{(y { - 1)}^{2} }{ {3}^{2} } - \frac{ {(x - 2)}^{2} }{ {100}^{2} } = 1[/tex]
[tex]( \frac{y - 1}{3} {)}^{2} - ( \frac{x - 2}{10 } {)}^{2} = 1[/tex]
Answer: 5 38 7
the reason is because add and multiply the check with division while also using radious
