Step-by-step explanation:
1: we plug in 3 instead of x. so we get
3(9)+5(3) = 42
2: we use pemdas or bedmas
27+12+1 = 40
if you have any other question feel free to ask.
Help ME PLEASE EXPLAIN HURRY!!!!!
Find the value of x.
Answer: 38
Step-by-step explanation: this is a 90 degree angle and 90-52= 38
Grace Charges $12 An Hour To Babysit And an Additional $20 for Homework help Write an Expression that can be used to find the total amount of money Grace makes for an hour
Plaese help
Answer:
12h+20=M
Where H=hours babysitting and M= money made or total amount
in this case since it's only an hour the equation would be 12(1)+20=M
12*1=12 and 12+20=32 so in the one hour with homework help would give you 32=M just for one hour.
Note that the 20 never changes considering it's only the charge for helping with homework and not over an hour.
But since this only asked for an hour and never specified if it was with the homework help here's this
12h=M
Step-by-step explanation:
Hope this helped.
PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS PLS
If f(x) = 7 4x and g (x) = startfraction 1 over 2 x endfraction, what is the value of (startfraction f over g endfraction) (5)? eleven-halves startfraction 27 over 10 endfraction 160 270
The value of the function [tex]\frac{f}{g} (5)[/tex] is 270.
Given functions are:
[tex]f(x) = 7+4x\\\\g(x) = \frac{1}{2x}[/tex]
What is the [tex]\frac{f}{g} (x)[/tex] ?[tex]\frac{f}{g} (x)[/tex] is the ratio of functions f(x) and g(x) i.e. [tex]\frac{f(x)}{g(x)}[/tex].
So, [tex]\frac{f}{g} (x) =\frac{7+4x}{\frac{1}{2x} }[/tex]
[tex]\frac{f}{g} (x) =2x(7+4x)[/tex]
[tex]\frac{f}{g} (5) =2*5(7+4*5)[/tex]
[tex]\frac{f}{g} (5) =270[/tex]
Therefore, the value of the function [tex]\frac{f}{g} (5)[/tex] is 270.
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Answer:
270
Step-by-step explanation:
edge2022
Select the correct answer from each drop-down menu.
Answer:
x = 95 , y = 147 , z = 128
Step-by-step explanation:
the exterior angle of a triangle is equal to the sum of the two opposite interior angles.
x is an exterior angle of the triangle , then
x = 45 + 50 = 95
vertex of triangle ( with x in it ) = 180 - 95 - 52 = 180 - 147 = 33
the vertex and y are adjacent angles on a straight line and sum to 180 , then
y = 180 - 33 = 147
z is an exterior angle of the triangle , then
z = 95 + 33 = 128
Which polygon has fewer than five lines of symmetry?
Answer:
Regular Polygons
Step-by-step explanation:
c) What is the value
of the digit 7 in the number 4.7237 as a fraction
Answer:
7/10, 7/10,000
Step-by-step explanation:
There are two digits 7.
The one to the left is in the tenths place, so its value is 7/10.
The one tot eh right is in the ten-thousandths place, so its value is 7/10,000.
Answer:
THE ONE IN THE TENTHS PLACE WOULD BE 7/10
THE ONE N THE MILLOINTHS PLACE WOULD BE 7/1,000,000
Step-by-step explanation:
Good Luck!
What is the slope in this equation
Please help me solve this ! Which figure can be formed from the net?
Answer:
A
Step-by-step explanation:
It is th eonly one with a asquare base and it maches the net.
Have an amazing day!
PLEASE RATE!
Option A is correct!
How??First of all, it's base is square just like the net. The net in option D also has a square base.Now, Confusion is there that which one is correct?To understand that, look at the dimensions. The dimensions of Figure in Option A matches the net completely.. Hence, it is the correct option!!~Question: Researchers in Pakistan wanted to better understand the effects of anthracycline (a chemotherapeutic drug) on the hearts of young children. More information on the details of their study can be found here: https://datadryad.org/stash/dataset/doi:10.5061/dryad.cg849
((The data set can be downloaded. After going to the website, the download is to the right)).
One variable the researchers calculated in these children was the E/A ratio. The E/A ratio is a measurement that reflects the health of the heart. The (E) velocity is greater than the late (A) velocity in a healthy heart. Particularly low or particularly high elevated E/A ratios indicate signs of heart issues.
The mean E/A ratio of the 110 patients in the study was 1.35. The standard deviation was 0.33.
1. One patient had an E/A ratio of 0.73. What is the z-score for this patient?
2. Assuming the population of E/A ratio scores is approximately normally distributed, what's the probability that a randomly selected person has a smaller E/A ratio than the patient in question 1?
3. Another patient had an E/A ratio of 1.96. What's the z-score for this patient? What's the probability that a randomly selected patient has a higher E/A ratio?
4. Which patient has a more extraordinary E/A ratio? Why? Be sure to refer to the z-scores to support your answer.
Using the normal distribution, it is found that:
1. His z-score was of Z = -1.88.
2. There is a 0.0301 = 3.01% probability that a randomly selected person has a smaller E/A ratio than the patient in question 1.
3. Z-score of z = 1.85, there is a 0.0322 = 3.22% probability that a randomly selected patient has a higher E/A ratio.
4. Due to the higher absolute value of the z-score, the first patient had a more extraordinary result.
Normal Probability DistributionIn a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
It measures how many standard deviations the measure is from the mean. After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.In this problem:
The mean is of [tex]\mu = 1.35[/tex].The standard deviation is of [tex]\sigma = 0.33[/tex].Item 1:
Considering his ratio, we have that X = 0.73, hence:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{0.73 - 1.35}{0.33}[/tex]
[tex]Z = -1.88[/tex]
His z-score was of Z = -1.88.
Item 2:
The probability is the p-value of Z = -1.88, hence, there is a 0.0301 = 3.01% probability that a randomly selected person has a smaller E/A ratio than the patient in question 1.
Item 3:
Score of X = 1.96, hence:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{1.96 - 1.35}{0.33}[/tex]
[tex]Z = 1.85[/tex]
The probability is 1 subtracted by the p-value of Z = 1.85, hence, 1 - 0.9678 = 0.0322 = 3.22% probability that a randomly selected patient has a higher E/A ratio.
Item 4:
Due to the higher absolute value of the z-score, the first patient had a more extraordinary result.
More can be learned about the normal distribution at https://brainly.com/question/24663213
5.023 x 10^10
Write this out as a normal number.
Answer:5.023E10
Step-by-step explanation:
a triangle has an area of 68 ft and a height of 16 ft what is the length of the base
Answer:
8.5
Step-by-step explanation:
First we need to know the formula is BxH/2 for triangles. First we would do 68x2=136. Then we would do 136/16 which would give you 8.5! Hope this helps!
A triangle having area of 68 ft and a height of 16 ft, the length of the base for a triangle is, 8.5 ft
What is the area?An area is total space occupied by two-dimensional or flat surfaces. In other words we can say that it is a number of unit squares present in a closed figure. We use various units for measurement of area like, cm², m², ft², mm².
Given that,
a triangle has an area of 68 ft
a height of 16 ft
the length of the base = ?
Area of triangle = 1/2×base×height
68 = 1/2×base×16
base = 8.5 ft
Hence, the length of the base is 8.5 ft
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How is the product of 2 and –5 shown using integer tiles? 2 positive tiles and 5 negative tiles. 2 negative tiles and 5 positive tiles. 5 negative tiles and 5 negative tiles. 5 positive tiles and 5 positive tiles.
Answer:
C
Step-by-step explanation:
5 negative tiles and 5 negative tiles.
The product of 2 and - 5 is shown in 'option 3' with 5 negative tiles and 5 negative tiles.
What is Multiplication?To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
We have to given that;
The product of 2 and - 5.
After multiply, we get;
⇒ 2 × - 5 = - 10
Thus, The correct option is,
⇒ 5 negative tiles and 5 negative tiles.
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Answer number 2 and 3 please
Answer:
c
Step-by-step explanation:
The Starlight Bowling Alley charges $6 to rent shoes and $8 per game. Cameron has
only $42 to spend. Which inequality represents this scenario if X represents the
number of games Cameron can play?
Answer:
4.5 Games
Step-by-step explanation:
42 Minus 6 (shoes)= 36
36 divided by 8 (each game) would equals 4.5
please help me which is a function and why
Answer:
576
Step-by-step explanation:
-67+ r7
Question 2 please fas
Answer:
a = 3, b = 2
Step-by-step explanation:
It is given that both the polynomials are equal.
Therefore, h(x) = k(x)
[tex] {x}^{3} + (a + b) {x}^{2} - 4x + 2 \\ = {x}^{3} + 5 {x}^{2} - (2a - b)x + 2 \\ \\ equating \: like \: terms \: on \: both \: sides \\ (a + b) {x}^{2} = 5 {x}^{2} \\ \implies \: a + b = 5.....(1) \\ \\ - (2a - b)x = - 4x \\ 2a - b = 4....(2) \\ \\ adding \: equations \: (1) \: and \: (2) \\ \\ 3a = 9 \\ \implies \: a = \frac{9}{3} \\ \huge \red{ \boxed{\implies \: a = 3}} \\ \\ substituting \: a = 3 \: in \: equation \: (1) \\ 3 + b = 5 \\ \implies \: b = 5 - 3 \\ \huge \purple{ \boxed{ \implies b = 2}}[/tex]
Elsa 65 miles per hour for 162. 5 miles how many hours
Answer:
2:29:32
Step-by-step explanation:
time = distance/speed= 162mi/65
=162/65 =2.49231
=2 hours 29 minutes 32 seconds
=02:29:32 (hh:mm:ss)
Hope this helps!
The balanced equation below shows the products that are formed when pentane (c5h12) is combusted. c5h12 8o2 right arrow. 5co2 6h2o what is the mole ratio of oxygen to pentane? 1:6 6:8 8:1 5:8
The mole ratio of the oxygen to pentane will be 8:1
What is the mole ratio?
A mole ratio is a ratio between the amounts in moles of any two compounds involved in a chemical reaction
A chemical equation is said to be a balanced chemical equation if it has an equal number of all the constituent atoms on both sides of the reaction arrow.
The balanced chemical reaction for the combustion of pentane is as follows:
[tex]\rm C_5H_{12}+8O_2--- > 5CO_2+6H_2O[/tex]
From the above-balanced chemical equation, it is clear that 1 mol of [tex]C_5H_{12}[/tex] reacts with 8 moles [tex]O_2[/tex] to form 5 moles of [tex]CO_2[/tex]
Thus the mole ratio of the oxygen to pentane will be 8:1
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Answer:
8:1
Step-by-step explanation:
edge
1+1+1+1+1+(18+18463)+496464+94643448=
Answer:
It guess it should be 95158398
ASAP ! GOD BLESS U!!!
Answer:
24 square metres
Step-by-step explanation:
Its basic math. You do 4 x 6 and you get the area.
The area of the cross-section of this cuboid is 7 cm2. The cuboid is 4 cm long.
What type of number -75 A)rational number B)irrational C) integer D) whole number E)natural number. Reply quickly
Answer:
Rational number
Step-by-step explanation:
Hope this helps
Answer:
Your answer is: A) Rational
A rational number is any integer, fraction, terminating decimal, or repeating decimal.
Step-by-step explanation:
Hope this helped : )
Solve for x.
What is the solution for x in the equation?
please help.
A.
B.
C.
D.
Answer:
B
Step-by-step explanation:
5/3x + 4 = 2/3x
5/3x - 2/3x = - 4
x= - 4
A dinner plate is in the shape of an isosceles right triangle, the leg is 13 inches. What is the perimeter of the plate, round your answer to the nearest tenth?
Answer: 18.4 inches
Step-by-step explanation:
After 1 year, $50,000 deposited in a savings account with simple interest had earned $4,000 in interest. What was the interest rate? Use the formula i = prt, where i is the interest earned, p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.
Answer:
the interest rate should be 8% let me know if u want me to explain it
The 4th and the last terms of an A.P. are 11 and 89 respectively. If there are 30 terms in the A.P., find the A.P. and its 23rd term.
[tex]\underline{\underline{\large\bf{Given:-}}}[/tex]
[tex]\red{\leadsto}\:[/tex][tex]\textsf{} [/tex][tex]\sf Number \: of \:terms \: in \: A.P,n = 30[/tex]
[tex]\red{\leadsto}\:[/tex][tex]\textsf{} [/tex][tex]\sf Fourth \: term ,a_4 = 11 [/tex]
[tex]\red{\leadsto}\:[/tex][tex]\textsf{} [/tex][tex]\sf last\:term, a_{30} = 89 [/tex]
[tex]\underline{\underline{\large\bf{To Find:-}}}[/tex]
[tex]\orange{\leadsto}\:[/tex][tex]\textsf{ } [/tex][tex]\sf The \: A.P. [/tex]
[tex]\orange{\leadsto}\:[/tex][tex]\textsf{ } [/tex][tex]\sf 23rd\: term, a_{23} [/tex]
[tex]\\[/tex]
[tex]\underline{\underline{\large\bf{Solution:-}}}\\[/tex]
The nth term of A.P is determined by the formula-
[tex]\green{ \underline { \boxed{ \sf{a_n = a+(n-1)d}}}}[/tex]
where
[tex]\sf a = first \:term[/tex][tex]\sf a_n = nth \: term[/tex][tex]\sf n = number \:of \:terms [/tex][tex]\sf d = common \: difference [/tex]Since ,
[tex]\sf a_4 = 11 [/tex]
[tex]\longrightarrow[/tex] [tex]\sf a+(4-1) d= 11 [/tex]
[tex]\longrightarrow[/tex] [tex]\sf a+3d= 11\_\_\_(1) [/tex]
[tex]\sf a_{30}= 89 [/tex]
[tex]\longrightarrow[/tex] [tex]\sf a+(30-1)d=89[/tex]
[tex]\longrightarrow[/tex][tex]\sf a+29d= 89\_\_\_(2)[/tex]
Subtracting equation (1) from equation(2)
[tex]\begin{gathered}\\\implies\quad \sf a+29d-(a+3d) = 89-11 \\\end{gathered} [/tex]
[tex]\begin{gathered}\\\implies\quad \sf a+29d-a-3d = 78 \\\end{gathered} [/tex]
[tex]\begin{gathered}\\\implies\quad \sf a-a+29d-3d = 78 \\\end{gathered} [/tex]
[tex]\begin{gathered}\\\implies\quad \sf 26d = 78 \\\end{gathered} [/tex]
[tex]\begin{gathered}\\\implies\quad \sf d = \frac{78}{26} \\\end{gathered} [/tex]
[tex]\begin{gathered}\\\implies\quad \sf d = 3 \\\end{gathered} [/tex]
Putting the value of d in equation (1) -
[tex]\begin{gathered}\\\implies\quad \sf a+3(3) = 11 \\\end{gathered} [/tex]
[tex]\begin{gathered}\\\implies\quad \sf a = 11-9 \\\end{gathered} [/tex]
[tex]\begin{gathered}\\\implies\quad \sf a = 2 \\\end{gathered} [/tex]
First term of A.P, a = 2Second term of A.P.,[tex]\sf a_2= 2+(2-1)\times 3[/tex][tex]\quad\quad\quad\sf =2+3[/tex]
[tex]\quad\quad\quad\sf =5 [/tex]
Third term of A.P.,[tex]\sf a_3= 2+(3-1)\times 3[/tex][tex]\quad\quad\quad\sf =2+6[/tex]
[tex]\quad\quad\quad\sf =8 [/tex]
[tex]\longrightarrow[/tex]Thus , The A.P is 2,5,8,. . . . . .
Now,
[tex]\begin{gathered}\\\implies\quad \sf a_n = a+(n-1)d \\\end{gathered} [/tex]
[tex]\begin{gathered}\\\implies\quad \sf a_{23 }= 2+(23-1)\times 3 \\\end{gathered} [/tex]
[tex]\begin{gathered}\\\implies\quad \sf a_{23} = 2+22 \times 3 \\\end{gathered} [/tex]
[tex]\begin{gathered}\\\implies\quad \sf a_{23} = 2+66 \\\end{gathered} [/tex]
[tex]\begin{gathered}\\\implies\quad \sf a_{23} = 68 \\\end{gathered} [/tex]
[tex]\longrightarrow[/tex]Thus , 23rd term is 68.
100 POINTS!!!
The y-intercept of a function can be found by:
A. Making x = 0
B. Making y + 0
C. Making x = 2
D. Making y = 2
EXPLAIN
Answer:
making x=0
Step-by-step explanation:
it gives you the points where the point intersects the y-axis
Answer:
A: Making x = 0
Step-by-step explanation:
The y-intercept of a function is where x is zero (i.e. [tex]f(0)[/tex])
In a factory 80 workers were female and 120 male what was the percentage of female workers?
Answer: Percentage of female workers = 40%
Step-by-step explanation: No of Female workers = 80
No of Male workers = 120
Total No of workers = 120+80= 200
percentage of female workers =80 of 200%= 40
If the skyscraper is 952 feet high, approximately how long will it take for the baseball to hit the ground? (Estimate your answer to one decimal place.)
The function of the baseball is a quadratic function
The baseball hits the ground after 7.7 seconds
How to determine when the baseball hits the ground?The function is given as:
h(t) = -16t^2 + v0t + h0
Where:
v0 = 0 --- the initial velocity
h0 = 952 -- the height of the skyscraper
So, we have:
h(t) = -16t^2 + 952
When the baseball hits on the ground, h(t) = 0.
So, we have:
-16t^2 + 952 = 0
Collect like terms
-16t^2 =- 952
Divide both sides by -16
t^2 =59.5
Take the square root of both sides
t =7.7
Hence, the baseball hits the ground after 7.7 seconds
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