Use the Quadratic Formula
Use the Quadratic Formula to find the zeros of the given
expression. Be sure to show your steps!
2x2-7x+3
Plz help no links
Answer:
1/2 and 3
Step-by-step explanation:
The quadratic formula is as given:
( -b±√(b^2-4ac) )/2a
To use it, plug in the a,b and c values.
ax^2+bx+c
In this case a is equal to 2, b is equal to -7, and c is equal to 3
plugging it into our formula gives us:
(-(-7)±√(-7^2-4*2*3) )/2*2
Which is equal to:
7±√(49-24) / 4
= 7±√25 / 4
=7±5 / 4
=2/4, 12/4= 1/2, 3
pls read and help me
given conversion factor 12in/1ft what is the above line segments unit of measure in inches round your answer to the nearest tenth
Answer:The correct answer is 75.6
Step-by-step explanation:
because i took the quiz myself
PLEASE HELP ME WITH THIS!!!!!!!!!!!!!!!!!!
Answer:
You may use cos 60° or sin 30°. Let's use cos 60°.
cos 60° = opp/hyp = (2 mm)/j
or
j = (2 mm)/(cos 60°) = 4 mm
trig questions above solve for x and round to the nearest tenth
Answer:
x= 51.3
x=35.1
Step-by-step explanation:
10.)
For this one we have the adjacent side and the hypotonouse
Which means we'll use CAH
cos(x)=25/40
x= 51.31781255
(assuming that we have to round to the nearest tenth again)
x=51.3
12.)
For this one we have the adjacent and hyptonouse
we'll use CAH again
cos(x)=27/33
x= 35.09680123
x=35.1
Please give me the answer and explanation .
Answer:
What is the question though?? Pls send an attachment on an new question :))
Step-by-step explanation:
Which statement best describes the relationship between the two variables? There is an association because the relative frequencies by column are similar. There is an association because the relative frequencies by row are similar. There is no association because the relative frequencies by column are similar. There is no association because the relative frequencies by row are similar.
Answer:
I think it is B if it is your welcome if not sorry its been a while since I learned about these.
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
A cooking school is teaching students how to make pasta noodles. The line plot displays how much flour each student used. How many total cups of flour did the students use to make the pasta?
Answer:
[tex]Total = 11\frac{1}{8}\ cups[/tex]
Step-by-step explanation:
Given
See attachment for plot
Required
Total number of cups used
The number of dot on each dataset represent the number of student
So, to get the total number of cups, we simply add the product of the number of cups and the number of student for each data item
So, we have:
[tex]Total = \frac{1}{8} * 6 + \frac{1}{4} * 5 + \frac{3}{8} * 2 + \frac{1}{2}*0 + \frac{5}{8} * 4 + \frac{3}{4} * 2 + \frac{7}{8} * 5[/tex]
[tex]Total = \frac{6}{8} + \frac{5}{4} + \frac{6}{8} + 0+ \frac{20}{8} + \frac{6}{4} + \frac{35}{8}[/tex]
Solve
[tex]Total = \frac{6+10+6+0+20+12+35}{8}[/tex]
[tex]Total = \frac{89}{8}[/tex]
[tex]Total = 11\frac{1}{8}\ cups[/tex]
help me plzz please please please
Answer:
Q1: 18 degrees
Q2: 60 sides
Step-by-step explanation:
The sum of the exterior angles is always 360 degrees. With this, do 360/20 to get the amount of sides that are within the shape.
360/20 --> 18 degrees.
Now with the interior angles, it can be found with the equation ((n-2) * 180 degrees) / n = Angle Given. With this, plug 174 degres into your equation.
(n-2) * 180 degrees) / n = Angle Given
(n-2) * 180 degrees) / n = 174
180n -360 / n = 174
180n -360 / 174n
360 = 6n
n = 60
It would be 60 sides.
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Answer:
k=5
Step-by-step explanation:
[tex]f(x)=x^2-6x+14[/tex]
[tex](\frac{b}{2} )^2= (\frac{-6}{2})^2= (-3)^2=9[/tex]
[tex]f(x)-5=x^2-6x+9[/tex]
[tex]f(x)-5=(x-3)^2[/tex]
[tex]f(x)=(x-3)^2+5[/tex]
[tex]k=5[/tex]
1.35b = 40.5
what is the value of b ?
Answer:
b=30
Step-by-step explanation:
A tea infuser in the shape of a right rectangular pyramid is 7.9 cm tall and has a base 3 cm long and 1.5 cm wide. To make the best tea, the infuser should be 80% filled with tea. What is the volume of tea needed to fill the infuser to 80% of its capacity?
Answer:
28.44 cm³Step-by-step explanation:
Full volume is:
V = lwhV = 3*1.5*7.9 = 35.55 cm³Volume of tea required:
35.55*80/100 = 28.44 cm³Help me with this math problem
Answer:
I believe that the answer is B
Step-by-step explanation:
ONCE AGAIN, HELP MEEEEEEE UDIHTJGAJHDAKMDHJ
(i am not the brightest lol)
bestiess helpssss plsss
PLEASE HELP NOT WILL HELP ME :,(
I'll make brainliest and give extra points
The following cone has a height of 4 inches and a volume of 12π. 4 in. What is the radius of the cone?
Answer:
3 in.
Step-by-step explanation:
volume = ⅓πr²h
⅓πr²h=12π
r²h=36
r²=9
r = 3 inches
A storage bin is a rectangular prism that measuring 114 cm long by 56 cm high by
56 cm deep. What is the surface area of the exterior, in square feet?
Answer:
33.12 square feet
Step-by-step explanation:
Step 1
We convert the dimensions to feet
1 cm = 0.0328084 feet
Length = 114cm
Hence
114 cm = 114 × 0.0328084 feet
= 3.74016 feet
≈ 3.7 feet
Height = 56cm
Hence
56 cm = 56 × 0.0328084 feet
= 1.83727 feet
≈ 1.8 feet
Depth(width) = 56cm
Hence
56 cm = 56 × 0.0328084 feet
= 1.83727 feet
≈ 1.8 feet
Step 2
The surface area of the rectangular prism
A=2(wl+hl+hw)
=2× (1.8×3.7+ 1.8×3.7 + 1.8 ×1.8)
≈33.12 square feet
The area of the parallelogram below is
square meters.
9 m
7 m
2 m
You have a basketball trophy in your room. The ball on the trophy has a diameter of 9 inches. What the volume of the ball?
Answer:
381.51 in^3
Step-by-step explanation:
Volume of a sphere = 4/3 x pi x r^3
r = 9/2 = 4.5
4/3 x 3.14 x 4.5^3 = 381.51 in^3
Pls help will mark brainliest
Answer:
uhh, look it up
Step-by-step explanation:
95 - 3/4 what is the value of the expression
Answer:377 /4 = 94 and 1 / 4 =94.25
Step-by-step explanation:
Subtract
95 − 3 /4
= 377 / 4
Convert integer to fraction
95 = 95 / 1
Find common denominator
95 over 1
− 3 over 4
= ( 95 × 4 ) over ( 1 × 4 )
− ( 3 × 1 ) over ( 4 × 1 )
= 380 over 4
− 3 over 4
4 is the least common multiple of denominators 1 and 4. Use it to convert to equivalent fractions with this common denominator.
Subtract
380 over 4
− 3 / 4
= ( 380 − 3 ) / 4
= 377 /4
Simplify
377 / 4
= 94 and 1 /494
Reduce fraction to lowest terms
1 is the greatest common divisor of 377 and 4. The result can't be further reduced.
Step 2 of 2: Simplify, sub-step b: Convert improper fraction to mixed number.
Convert improper fraction to mixed number
377 /4
= 94 1 /4
377 ÷ 4 = 94 remainder 1
By writing the whole number as a fraction, we will see that the solution is 377/4
How to solve the expression?
Here we want to take the difference between a whole number and a fraction:
95 - 3/4
To do this, we need to write the whole number as a fraction, to do it, we multiply and divide it by 4:
95 = (4/4)*95 = 380/4
Now we rewrite our expression as:
95 - 3/4 = 380/4 - 3/4 = 377/4
This is the solution of the expression.
If you want to learn more about fractions, you can read:
https://brainly.com/question/11562149
Calculate the perimeter and the area. Can yall help and if you could show the steps
Answer:
area of circle=π[tex]r^{2}[/tex]
=3.14*(6)^2
=3.14*36
=113.04 cm^2
perimeter of circle=2πr
=2*3.14*6
=37.68 cm
Step-by-step explanation:
A class has 16 boys and 20 girls. A prefect is to be chosen from the class. If
each student is equally likely to be chosen, calculate the probability that the
selected prefect is:
(a) a boy (b) a girl
Answer:
a) 16/36 b)20/36
Step-by-step explanation:
16 + 20 = 36
36 = how many people are in the class all together
Sorry if it is wrong
Simran used a simulation to predict the number of days of rain in his town. A number 1 or 2 indicates a week in which it rained. Numbers 3, 4, or 5 indicate a week in which it did not rain. The results of the simulation are shown above. What is the experimental probability that it will rain in Simran’s town in at least 1 of the next 4 weeks?
Answer:
The answer that I got for mine was 40%
Step-by-step explanation:
This is because there were 10 trials and 4 of the trials had rain. so 40 percent of the trials had rain. Hope it helps!
Help pleaseeeeeeeeee
9514 1404 393
Answer:
47 -6√10
Step-by-step explanation:
As you know, the area of a square is the square of the side length. It can be helpful here to make use of the form for the square of a binomial.
(a -b)² = a² - 2ab + b²
(√2 -3√5)² = (√2)² - 2(√2)(3√5) + (3√5)²
= 2 - 6√10 + 3²(5)
= 47 -6√10
__
Check
√2-3√5 ≈ -5.29399 . . . . . . . . note that a negative value for side length makes no sense, so this isn't about geometry, it's about binomials and radicals
(√2-3√5)² ≈ 28.02633
47 -6√10 ≈ 28.02633
Which is equivalent to (15x2 + 3x – 6)-(15x2 + 3x + 6)?
Answer:
creo que es hay 15también eso yo pienso
Please a correct answer gets brain thing that I forgot it name please help
Answer:
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Step-by-step explanation:
1. If you are having a cookout for 200 people and ribeyes are $200.00 per loin and you can get 50 ribeyes per
loin, how much will the steak cost? How much is the steak per person?
Answer:
$800 total paid for four loins. Everyone gets one ribeye so price of steak per person is four dollars.
Step-by-step explanation:
1 ribeye per person -> 50 ribeyes per loin -> 200 (people going)/50 (people fed per loin) = 4 (loins needed) -> $200.00 x 4 loins = $800 of loin total and 4 dollars per ribeye (1 ribeye per person)
A population has a standard deviation of 22. What is the standard error of the
sampling distribution if the sample size is 100?
A. 4.4 D
B. 0.22
C. 0.44
Ο Ο
D. 2.2
Answer:
2.2
Step-by-step explanation:
Find square root of sample size then divid it by your standard deviation
Answer:
2.2
Step-by-step explanation:
i just took the test
Given square ABCD, what is the length of AD?
For spirit week, a high school club is making wristbands from paper. The wrist bands are designed to have a height of 1.8 centimeters and a maximum diameter of 7.5 centimeters. How many Square centimeters of paper are required to make each wristband?
Answer:
Step-by-step explanation:
33
43.0 square centimeters of paper are required to make each wristband.
What is area of curved surface?The curved surface of a cylinder is equal to a rectangle whose length is
2[tex]\pi[/tex]r and whose width is h.
The area of the curved surface = [tex]\pi dh[/tex].
Given
Height of wrist band = 1.8 cm
Diameter of wrist band =7.5 cm
Wrist band is a cylinder
Area of curved surface
S = [tex]\pi dh[/tex]
= 3.14 × 7.5 × 1.8
= 42.9552 ≅ 43.0 [tex]cm^{2}[/tex]
Hence, 43.0 square centimeters of paper are required to make each wristband.
Learn more about area of curved surface here
https://brainly.com/question/1037971
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