Answers
Given:
A. Evaluate [tex]\dfrac{3}{8}x-4.5[/tex] when x=0.04.
B. Evaluate [tex]8.4n-3.2p[/tex] when n=2 and p=4.
To find:
The values of the given expression at the given values.
Solution:
A.
We have,
[tex]\dfrac{3}{8}x-4.5[/tex]
Putting x=0.04 in the above expression, we get
[tex]\dfrac{3}{8}(0.04)-4.5[/tex]
[tex]=0.015-4.5[/tex]
[tex]=-4.485[/tex]
Therefore, the value of the expression at x=0.04 is -4.485.
B.
We have,
[tex]8.4n-3.2p[/tex]
Putting n=2 and p=4 in the above expression, we get
[tex]8.4(2)-3.2(4)[/tex]
[tex]=16.8-12.8[/tex]
[tex]=4[/tex]
Therefore, the value of the expression at n=2 and p=4 is 4.
Related Questions
7 more than a number w is -2
Answers
Answer:
w+7=-2
Step-by-step explanation:
solve for x and y. please, i'll give brainiest. i really need help!
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Y= 8
Let me know if you need an explanation
please help me with this
Answers
9514 1404 393
Answer:
(c) 16πx^6y^10
Step-by-step explanation:
The applicable rules of exponents are ...
(ab)^c = (a^c)(b^c)
(a^b)^c = a^(bc)
__
Putting the expression for r in the formula, you have ...
A = πr^2
A = π(4x^3y^5)^2 . . . . . substitute for r
A = π(4^2)(x^(3·2))(y^(5·2)) = 16πx^6y^10
Show how to simplify this problem using the distributive property.
4(12 + 6)
Answers
Hey there!
4(12 + 6)
4(12) + 4(6)
4(12) = 48
4(6) = 24
48 + 24 = ?
48 + 24 = 72
Answer: 72 ☑️
Good luck on your assignment and enjoy your day!
~LoveYourselfFirst:)
(4*12)(4*6)
48+24=72
15 In rectangle PRST, ST and RT are extended as shown in the diagram below. The measure
of ZPTR is x° and the measure of ZRTS is (2x – 57).
P
R
X
U
(2x - 57)
V
Find the measure of ZUTV.
Find the measure of ZSTV.
Answers
Answer:
Z PTS = 90°
or, Z PTS = Z PTR + Z PTS
or, 90° = x° + ( 2x - 57 )°
or, 3x° = 90° + 57°
or, 3x° = 147°
or x° = 49°
ans: Z PTR = Z UTV = 49°
Z STU = 180°
or, Z UTV + Z STV = 180°
or, 49° + Z STV = 180 °
or, Z STV = 180° - 49°
= 131°
ans : Z STV = 131°
A plot of land is in the shape of a triangle. Two of the angles measure 48 degrees and 74 degrees. The length of the side between them is 90 m.
a) calculate the perimeter of the plot, to the nearest meter.
b) calculate the area of the plot, to the nearest square meter.
Answers
Answer:
Perimeter = 271 meters
Step-by-step explanation:
third angle measure would have to be 180 - 122 = 58 degrees
you can use the law of sines:
sin 58° = sin 74°
90 b
.85 = .96
90 b
cross-multiply: .85b = 86.4
b = 102
now do again to find third side:
sin 58° = sin 48°
90 c
.85 = .74
90 c
.85c = 67
c = 79
now you know all 3 sides so add them to get perimeter (79+102+90) = 271
11 out of 24 peopled surveyed stated that they prefer glazed donuts at Dunkin Donuts. If 288 people buy a donut, how many can you predict will get a glazed donut?
Answers
explanation: if you divide 288 by 24 you get 12. with that you multiply 11 times 12 and get 132 which would get you to a fraction of 132/288.
Press A can make 100 forms an hour. The table below shows the productivity of press B. How much faster is press B than press A?
Answers
Answer:
3.3
Step-by-step explanation:
I think so I don't know
Which description corresponds to the relationship shown in the table
Answers
Answer:
A
Step-by-step explanation:
earning $10 an hour because it increases by 40
I need step by step please w + 4 = (-6)
Answers
Answer:
w = -10
Step-by-step explanation:
[tex]w+4=(-6)\\\\w+4=-6\\\\w+4-4=-6-4\\\\\boxed{w=-10}[/tex]
Hope this helps.
The answer is -10
4 + -6 is -10
Or if you’re not finding the sum it’s 4w = -6.
I hope this helped!
How do I solve this using long division?
Answers
Answer:
x + 5
Explanation:
x^2 + 3x − 10 /x−2
= x^2 + 3x − 10 /x − 2
= (x−2)(x+5) /x−2
= x + 5
The sum of three consecutive odd integers is –87. What are the integers?
A.
–31, –33, –35
B.
–30, –29, –28
C.
–31, –30, –29
D.
–31, –29, –27
Answers
NOBODY HAS HELPED ME TODAY ??? please help me !!!
Answers
28/20 = 2x+3/15
28(15)/20 = 2x+3 = 2x+3 = 21
2x=18
x=9
Someone please explain
Answers
Answer:
D) 6
Step-by-step explanation:
set Q has 16 values which are all even values from 4 to 36
set Z has 11 values that are multiples of 3 from 4 to 36 (6,9,12,15,etc.) however, we have to eliminate the odd ones, leaving the following six:
6, 12, 18, 24, 30, 36
Answer:
D. 6
Step-by-step explanation:
Key skills needed: Set Similarity
1) The easiest way to teach this is by writing out each set, but I will show it to you in 2 ways.
2) The first way is by writing everything out.
Set Q = 4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36
Set Z = 3,6,9,12,15,18,21,24,27,30,33,36
(I only wrote out Set Z to 36 since Set Q ends at 36. Anything greater than 36 won't even be there in Set Q, so no point in writing more.
The numbers that are common in both sets are --> 6,12,18,24,30,36Therefore D would be your answer.3) The next way is with using a simple pattern.
Set Q contains all even numbers from 4 to 36
Set Z contains all multiples of 3 (no limits)
Therefore, the numbers that are in both sets would be:
The even multiples of 3 that are bigger than 4 and less than 36.
4) Those even multiples of 3 would be ---> 6,12,18,24,30,36
That means there are 6 numbers in common. That means D is your answer.Both show that D is the answer, so I would say D as the answer very confidently.
Hope you understood and have a nice day!! :D
WILL MARK BRAINLIEST TO THE PERSON WITH THE BEST ANSWER!!! PLEASE ANSWER ALL QUESTIONS AND PLEASE SHOW FULL SOLUTIONS! PLEASE MAKE SURE YOU DID IT RIGHT. I NEED EVIDENCE THAT SHOWS WHY ITS THE ANSWER. THANK YOU.
Answers
Hey there!
Here is a graph of the points:
A scatterplot is a graph, but the points won't be able to connect in a straight line, and they have no relation.
A line of best fit is a line that goes evenly through the points, or as best as it could.
Genie worst five hours on Tuesday three hours on Wednesday 4.5 hours on Thursday if H represents her hourly pay rate which expression below shows the amount she earned
Answers
Answer:
12.5H
Step-by-step explanation:
Number of hours worked per day:
Tuesday = 3 hours
Wednesday =5 hours
Thursday = 4.5 hours
H = hourly pay rate
Total amount earned = 3 hours × H + 5 hours × H + 4.5 hours × H
= 3H + 5H + 4.5H
= 12.5H
The expression which shows the total amount she earned = 12.5H
A watch loses 15 seconds every hour. How many minutes will the watch lose in a day?
Answers
Answer:
360 seconds
Step-by-step explanation:
15 * 24 =360
Answer:
minutes lost per day 360/60=6
hope that helps
Sorry if its wrong
What is the circumference of a circle with radius 2.1 cm? Use > (inserts wavey = sign) 3.14.
Answers
Step-by-step explanation:
The formula for the circumference of a circle is 2*pi*radius
Circumference = 2(3.14)(2.1)
= 13.188cm
7(2x+3)=3(4x+6)+2x+3
Answers
Answer:
[tex]7(2x + 3) = 3(4x + 6) + 2x + 3 \\ 14x + 21 = 12x + 18 + 2x + 3 \\ 14x - 14x = 21 - 21 \\ 0 = 0[/tex]
Suppose y varies directly with x. Write an equation if y = 4 when x = 0.4.
Answers
0.04
step by step explanation:
i’m here for the points sorry
True or False: If there are multiple operations inside a parentheses, you do not need to complete these in the order of PEMDAS.
Answers
Answer:
False
Step-by-step explanation:
I would say false. The operations inside should always go by PEMDAS unless instructed otherwise
Answer:
FALSE
Step-by-step explanation:
Within a set of parentheses, the order of operations should be followed. This is because you will get the wrong answer if you don't.
Mina created a miniature rocket launcher, and the graph shows the height of one of her
rockets relative to the ground over time, where the rocket's height (y) is measured in meters
and time (x) is measured in seconds. *
(2 points)
The Vertex represents
the maximum height of the rocket
the minimum height of the rocket
the moment before the rocket is launched
Answers
Answer:
Work individually or in teams of two to construct and launch paper rockets using a teacher-built PVC-pipe launcher.
Following the flight of their rocket, calculate the altitude their rocket achieved.
Based on the flight performance of their rockets, analyze their rocket designs, modify or rebuild them, launch again, and calculate the altitude achieved to determine if their changes affected the performance of the rocket.
Conclude the activity by writing a post-flight mission report.
Materials
Find the side of square , if it's perimeter is 18cm .also find its area
Answers
Answer:
a side of a square with a 18cm ´perimeter would be 4.5cm
area would be 20.25
Step-by-step explanation:
You can calculate the area of a square by using both the length of one side and its perimeter. Divide the perimeter length by 4 to get the measurement for each side of the square.
Use the given information to find the exact value of each of the following.
a. sin 2theta =
b. cos 2theta =
c. tan 2theta =
cot theta = 11, theta lies in quadrant III
a. sin 2theta =
Answers
Answer:
Step-by-step explanation:
cot θ=11
tan θ=1/11
[tex]\sin ~2\theta=\frac{2 \tan ~\theta}{1+\tan^2 \theta} =\frac{2*\frac{1}{11} }{1+(\frac{1}{11} )^2}=\frac{22 }{122} \\\\cos~2 \theta=\frac{1-tan^2 \theta}{1+tan^2\theta} =\frac{1-(\frac{1}{11})^2 }{1+(\frac{1}{11} )^2} =\frac{120}{122} =\frac{60}{61} \\tan 2 \theta=\frac{2 tan\theta}{1-tan^2 \theta} =\frac{2*(\frac{1}{11 } )}{1-(\frac{1}{11} )^2} =\frac{2*11}{120} =\frac{11}{60}[/tex]
Pleaseee help mee I will appreciate it
Answers
Answer:
Read explanation!
Step-by-step explanation:
A = $0.89
B = $0.92
C = $0.94
Which pair of points have -3 as the y-coordinate
A. Points C and G
B. Points F and E
C. Points B and D
D. Points B and L
I NEED THIS NOW PLEASEE
Answers
Which equation is equivalent to the given equation? If anyone can help it means a lot
Answers
Answer:
x^2 + 16x + 60 = 0
Step-by-step explanation:
Add 16x to both sides of the given equation. We get x^2 + 16x + 60 = 0.
Adaline has 24 stuffed animals. Of those, six are my mythical creatures. What percentage of Adaline's stuffed animals are mythical creatures?
Answers
Answer:
6% are Adaline's mythical creatures
Step-by-step explanation:
Its you the number of mythical creatures Adaline's has, Hope this works!!
Given the function: f(x) = x2 – 2x How can you restrict the domain so that f(x) has an inverse? What is the equation of the inverse function? x ≥ 0; f Superscript negative 1 Baseline (x) = 1 + StartRoot x + 1 EndRoot x ≥ 1; f Superscript negative 1 Baseline (x) = 1 + StartRoot x + 1 EndRoot x ≥ 0; f Superscript negative 1 Baseline (x) = 1 minus StartRoot x + 1 EndRoot x ≥ 1; f Superscript negative 1 Baseline (x) = 1 minus StartRoot x + 1 EndRoot
Answers
Answer:
D x > 2; f Superscript negative 1 Baseline (x) = 2 + StartRoot x + 2 EndRoot
Step-by-step explanation:
Apply this method when doing problems similar to this one.
9514 1404 393
Answer:
(b) x ≥ 1; f⁻¹(x) = 1+√(x+1)
Step-by-step explanation:
We can find the inverse function by solving for y:
x = f(y)
x = y² -2y
x +1 = y² -2y +1
x +1 = (y -1)²
√(x +1) = y -1
1 +√(x +1) = y
So, the inverse function is ...
[tex]f^{-1}(x)=1+\sqrt{x+1}[/tex]
For this, the root will be non-negative, so the minimum value of this function is 1. That is, the minimum value of x for which the original function has this as an inverse is 1.
The domain restriction is x ≥ 1.
The inverse function is f⁻¹(x) = 1+√(x+1)
It takes Serina .5h to walk to school. Her route is 15km long. What is
her average speed?
Answers
Answer: 3km/h
Step-by-step explanation:
15km per 5h, which is 3km per 1h. This is pretty easy. I don't know what you want for her average speed like in unit (e.g 1 hour). If you are asking for the hour unit it is 3km/h