Answer:
[tex]\frac{2}{9}[/tex]
Step-by-step explanation:
1. [tex]\frac{2}{3} -\frac{4}{9}[/tex]
2. Multiply [tex]\frac{2}{3}[/tex] by [tex]\frac{3}{3}[/tex] to get a denominator equal to [tex]\frac{4}{9}[/tex]
3. [tex]\frac{2}{3} *\frac{3}{3} =\frac{6}{9}[/tex]
4. [tex]\frac{6}{9}-\frac{4}{9} =\frac{2}{9}[/tex]
The expression is: [tex]\frac{2}{3}*\frac{3}{3} -\frac{4}{9}[/tex]
Answer:
6/9-4/9
Step-by-step explanation:
ez pls mark branliest
In the figure below
Order the set of numbers from least to greatest: square root 64, 8 and 1 over 7, 8.14 repeating 14, 15 over 2
A 15 over 2, square root 64, 8 1 over 7, 8.14 repeating 14
B 8 1 over 7, 8.14 repeating 14, square root 64, 15 over 2
C square root 64, 8 1 over 7, 8.14 repeating 14, 15 over 2
D 15 over 2, square root 64, 8.14 repeating 14, 8 1 over 7
Answer:
D
Step-by-step explanation:
15/2= 7.5
square root of 64= 8
8 1/7= 8.14285...
-(x+4)+3x=1=2x+5 distributive propert
Answer:
=5(9)+6+1. =45+7 =52
=52.move the x with the negative exponent into the denominator and change the sign. 1,3x'y+2xy-5y.solve when x = - 2;y = 3
Step-by-step explanation:
How many members did not vote for the art club the percent is 75% and there are 60 people?
Answer:
45 people
Step-by-step explanation:
Find what 1/4 (25%) of 60 is by dividing it by 4.
You get 15, then multiply that (25%) by 3 to get 75%.
15x3 = 45
45 is your answer.
5. During a game of golf, Kayley hits her ball out of a sand trap. The height of the golf ball is modeled by the
equation h=-16r² + 20 - 4, where h is the height in feet and is the time in seconds since the ball was hit.
Find how long it takes Kayley's golf ball to hit the ground.
a. Write the equation that you are trying to solve.
b. Solve the equation by factoring.
Answer:
(a) [tex]\sf -16r^2+20r-4=0[/tex]
(b) r = 1, r = 1/4
Step-by-step explanation:
Given equation: [tex]\sf h=-16r^2+20r-4[/tex]
where:
h = height (in feet)t = time (in seconds)Question (a)
The ball will hit the ground when h = 0
[tex]\sf \implies-16r^2+20r-4=0[/tex]
Question (b)
To factor [tex]\sf -16r^2+20r-4=0[/tex]
Divide both sides by 4:
[tex]\sf \implies-4r^2+5r-1=0[/tex]
Swap signs:
[tex]\sf \implies 4r^2-5r+1=0[/tex]
Split middle term:
[tex]\sf \implies 4r^2-4r-r+1=0[/tex]
Factorize the first two terms and the last two terms separately:
[tex]\sf \implies 4r(r-1)-(r-1)=0[/tex]
Factor out common term (r - 1):
[tex]\sf \implies (4r-1)(r-1)=0[/tex]
Therefore:
[tex]\sf \implies (4r-1)=0 \implies r=\dfrac14[/tex]
[tex]\sf \implies (r-1)=0 \implies r=1[/tex]
If the scores from an intelligence test are normally distributed, then you would predict that the largest number of people would receive an IQ score of _____ on that test.
Using the normal distribution, it is found that the prediction is that the largest number of people would receive an IQ score of 100 on that test.
Normal Probability DistributionThe z-score of a measure X of a normally distributed variable with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex] is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The z-score measures how many standard deviations the measure is above or below the mean. Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.IQ scores have mean of 100, and since in the normal distribution most measures are around the mean, an IQ score of 100 is the prediction.
More can be learned about the normal distribution at https://brainly.com/question/24663213
A cylinder has a height of 20 inches and a radius of 19 inches. What is its volume? Use ≈ 3.14 and round your answer to the nearest hundredth.?????????HELP PLEASEEEEEEEEEEE
Answer:
22670.8 :D
Step-by-step explanation:
Volume of a cylinder: 3.12(r^2)h
Now lets solve :)
3.14(19^2)20
3.14(361)20
(1133.54)20
22670.8 :)
Have an amazing day!!
Please rate and mark brainliest!!
posting this again please help^
I have no idea thank me for my help
the sum of a number w and twenty-four to the power of four
Is it (W+24)⁴ or W+24⁴
Answer:
(w + 24)⁴
Step-by-step explanation:
The sum is to the power of four, so it would be the entire expression.
Hope this helps!
Lydia is planning an event for 275 people. She wants to find out the food preferences for the guests, so she surveys 60 guests and discovers that 45 of those guests prefer chicken and 15 prefer fish. What is the sample for the survey?
Answer:
sample size is the number of individuals in the sample and the sample is 60 guests.
Step-by-step explanation:
She wants to find out the food preferences for the guests, so she surveys 60 guests and discover 45 of those guests prefer chicken and 15 prefer fish.
The sample is 60 guests.
4 1/2 - 1 8/10 please
Answer:
Down below!!
Step-by-step explanation:
Exact Form:
27/10
Decimal Form:
2.7
Mixed Number Form:
2 7/10
Answer:
4 1/2 - 1 8/10 = 2 7/10
Step-by-step explanation:
Step 1 : Start by making the mixed fraction into improper fractions
4 1/2 = 9/2
(For the fraction 1 8/10, make sure to simplify 8/10!)
9/2 - 1 4/5 = 9/2 - 9/5
Step 2: Next find a common denominator for both the improper fractions.
9/2 x 5/5 = 45/10
9/5 x 2/2 = 18/10
45/10 - 18/10 = 27/10
Step 3: Now, make the improper fraction into a mixed number
27/10 = 2 7/10
So this shows us that 4 1/2 - 1 8/10 = 2 7/10! Hope this helps! :D
Which is the best buy?
Pack of 8 apples for £1.65
Pack of 6 apples for £1.25
Answer:
Pack of 6 apples for £1.65 is better because the price of 1 apple is less in this answer.
Carol, an avid hiker, typically loses 2 pounds of weight during a 3-hour hike. She always brings a Camelbak hydration pack with her, drinking 50 ounces during her hikes. How much should Carol be drinking per hour to meet her total fluid needs
The amount of water Carol should be drinking per hour to meet her total fluid needs is 16.67 ounces.
How many fluids should Carol drink hourly?Division is a mathematical operations that groups a number into equal parts using another number. The sign used to denote division is ÷.
Water to be drank per hour = total water drank / hours of hike
50 / 3 = 16.67 ounces
To learn more about division, please check: https://brainly.com/question/13281206
Emilia and Rose ran around a track. Emilia ran 3 more laps than Rose. Altogether, they ran 11 laps.
How many laps did Rose run?
Given:
f(x)=x^2
g(x)=x-1
Find f(g(2))+g(f(-1))
Answer:
1
Step by step explanation:
[tex]\text{Given that,} ~ f(x) = x^2~ \text{and}~ g(x) = x-1\\\\g(2) = 2-1 = 1\\\\g(f(-1)) = g(1) = 1-1 = 0\\\\f(g(2) + g(f(-1)))= f(1+0) = f(1) = 1^2 =1[/tex]
Answer:
g(2) = 2 - 1 = 1 \\ f( -1 ) = { - 1}^{2} = 1 \\ f(1) + g(1) = \\ f(1) = {1}^{2} = 1 \\ g(1) = 1 - 1 = 0 \\
[tex]g(2) = 2 - 1 = 1 \\ f( -1 ) = { - 1}^{2} = 1 \\ f(1) + g(1) = \\ f(1) = {1}^{2} = 1 \\ g(1) = 1 - 1 = 0 \\ 1 + 0 = 1 \\ [/tex]
2 regular octagons have sides of lengths 21 and 28, respectively. find the scale factor and ratio of the areas.
by definition two regular polygons of the same amount of sides will be similar. Check the picture below.
4. Evaluate and then express 2(11 x 10') in the form A X 10" where Is A < 10 and n is an integer
Answer:
Step-by-step explanation:
hello : 2,2×10² where : A =2,2 ( A < 10) qnd n =2 (is integer)
How do I solve this I have no idea 9(x-3)*2= 36
Answer:
Your answer is 5
Step-by-step explanation:
Tell me if im wrong
Answer:
0
Step-by-step explanation:
Times -1=0
Please help me I’m really bad at geometry
Answer:
x+15=180(being co-interior angle)
x=180-15
x=165
what is point?
(in mathematics)
Step-by-step explanation:
a microscopic membrane of lipids and proteins which forms the external boundary of the cytoplasm of a cell or encloses a vacuole, and regulates the passage of molecules in and out of the cytoplasm
thx for ur poi.nts buddy
kese h.o aap
Work out
(
1.8
×
10
−
3
)
÷
(
2
×
10
−
7
)
Give your answer in standard form
Answer:
1.15
Step-by-step explanation:
(1.8*10-3)/(2*10-7)
(18-3)/(20-7)
15/13
1.15
..................
This question, please!!!
Box of candy contains 0.6 of a pound of caramels 3.6 pounds of coconut What percent the contents of the box, by weight consist of caramels?
Answer:
14.28%
Step-by-step explanation:
I'm not sure if it's right but this is how I worked it out,
the box's contents are 4.2 pounds in total,
therefore in a fraction it would be 6/42
you turn a fraction into a percentage you do the numerator divided by the denominator
6÷42=0.142857(decimal form)
now you just turn it into a percentage
14.28%
please correct me if I'm wrong
Help ASAP!!! Will Mark Brainliest!!! Don't Know, Don't Answer!!!
Answer:
the question is blurry, please resend it
Each ticket to a school dance is $4. The total amount in ticket sales is $332. Write and solve an equation to find the number of students attending the dance.
Answer:
a. 4x = 332
b. 83 students
Step-by-step explanation:
Write equation:
4x = 332
Since we know that each ticket per student is $4, we can use "x" as our variable for the number of students
_________________________________________-
Solve
4x = 332
/4 /4
____________
x = 83 students
Hope this helps :)
Find the value of x. (4x + 12)° 64°
Answer:
C. 13Step-by-step explanation:
the angle of measure 4x + 12 and the angle of measure 64 are Vertically opposite angles then they are equal in measure
therefore
4x + 12 = 64
⇔ 4x = 64 - 12
⇔ 4x = 52
⇔ x = 52/4
⇔ x = 13
Multiply. Write your answer as a fraction in the simplest form 3 x 7/12
[tex]3\times \dfrac 7{12} = \dfrac{3 \times 7}{12}=\dfrac{3 \times 7}{3 \times 4} = \dfrac 74[/tex]
What is the surface area?
Answer:
24 ft^2
Step-by-step explanation:
The srface area consisists of 2 triangles and 3 rectangles.
Surface area = 2 * 1/2 *4 * 3 + 1*4 + 1*5 + 1*3
= 12 + 4 + 5 + 3
= 24 ft^2.
In the figure below, all lines intersect at point W. What is the value of angle VWX?*
Answer: 55
Step-by-step explanation:
Angle VWX and the 55 degree angle are vertical angles.
Factor −4x^2 +6x. Is this a special product?
The angle of elevation to a nearby tree from a point on the ground is measured to be 20∘
. How tall is the tree if the point on the ground is 92 feet from the tree? Round your answer to the nearest hundredth of a foot if necessary.
Answer:
33.49 feetStep-by-step explanation:
This is about the right triangle, where 92 feet side is adjacent leg to 20° angle, x - height.
Use trigonometry to find the height
x / 92 = tan 20°x = 92 tan 20°x = 33.49 feet (rounded)[tex]\\ \rm\rightarrowtail cot\theta=\dfrac{B}{P}[/tex]
[tex]\\ \rm\rightarrowtail cot20=\dfrac{92}{P}[/tex]
[tex]\\ \rm\rightarrowtail P=\dfrac{92}{cot20}[/tex]
[tex]\\ \rm\rightarrowtail P=\dfrac{92}{2.7475}[/tex]
[tex]\\ \rm\rightarrowtail P=33.49ft[/tex]
