Answer:
7x + 2
Step-by-step explanation:
4(3x-2)-10x+5(x+2)
12x - 8 - 10x + 5x + 10 = 7x + 2
Answer:
7x-6
Step-by-step explanation:
ok so um to remove the brackets you would want to multiply the number outside the brackets
12x-8-10x+5x+2
now you want to combine like terms
7x-6
I hope this helps you!!!
Have a good day!!!!!
In AHIJ, the measure of ZJ=90°, IJ = 5 feet, and JH = 3.2 feet. Find the measure of
ZI to the nearest tenth of a degree.
5
J
H
3.2
Answer:
32.6
Step-by-step explanation:
opp/adj = 3.2/5
I= tan -1(3.2/5)
I =32.6192
=32.6
how many odd positive integers greater than 50 and less than 140 are there?
Step-by-step explanation:
there are 45 odd numbers
Answer:
45
Step-by-step explanation:
to figure this out, lets first subtract 50 from 140 so we can start at 0, it will be easier to calculate and we will get the same result
140 - 50 = 90
then since theres 1 odd intager for every even intager in an even set of numbers, we can divide 90 by 2 to get the amount of odd intagers
90 / 2 = 45
if you start at 0, 50, or even 5 million, as long as the difference between the two thresholds stay the same, you will get the same result
Please solve for X.
52–r= 5-42
Answer:
-89
Step-by-step explanation:
what’s the initial value?
What is –9.2(8x – 4) + 0.7(2 + 6.3x) simplified?
–69.19x – 32.39
–69.19x + 38.2
–72.2x + 41.21
75x – 338.2
Answer:
–69.19x + 38.2
Step-by-step explanation:
-9.2(8x - 4) + 0.7(2 + 6.3x)....distribute thru the parenthesis
-73.6x + 36.8 + 1.4 + 4.41x ...combine like terms
(-73.6x + 4.41x) + (36.8 + 1.4) =
-69.19 + 38.2 <====
hope it helps!!
tell me if I got it wrong
Answer:
–69.19x + 38.2
Step-by-step explanation:
Given: f(x) = 8x4 + 2x3 – x + 3 and g(x) = -5x3 + 7x + 2
Simplify: f(x) + g(x)
Answer:
Step-by-step explanation:
[tex]8x^4+2x^3-x+3-5x^3+7x+2\\ \\ 8x^4-3x^3+6x+5[/tex]
The figure below shows the dimensions of an arrow painted on the pavement
of a parking lot. The entire length of the arrow is 6.5 feet (ft.).
A mass weighing 9 lb stretches a spring 1.5 in. The mass is displaced 5 inch in the downward direction from its equilibrium position and released with no initial velocity. Assuming that there is no damping, and that the mass is acted on by an external force of 5 cos(6t) lb, solve the initial value problem describing the motion of the mass. For this problem, please remember to use English units: ft, lb, sec.
Answer:
[tex]9u" + 2304u = 160cos(6t)[/tex]
[tex]u(0) = \frac{5}{12}ft[/tex] and [tex]u'(0) =0[/tex]
Step-by-step explanation:
Given
[tex]w =9lb[/tex] --- weight
[tex]L = 1.5in[/tex] --- stretch
[tex]u(0) =5in[/tex] --- initial position
[tex]u'(0) =0[/tex] --- initial velocity
[tex]\gamma =0\ lbs/ft[/tex] --- no damping
[tex]F(t) = 5cos(6t)\ lb[/tex] -- External force
Required
Solve the initial value problem
The initial value problem is calculated using:
[tex]mu" + ku = F(t)[/tex]
First, convert all lengths to ft
[tex]L = 1.5in[/tex]
[tex]L = \frac{1.5}{12}ft[/tex]
[tex]L = \frac{1}{8}ft[/tex]
[tex]u(0) =5in[/tex]
[tex]u(0) = \frac{5}{12}ft[/tex]
Weight is calculated as:
[tex]w = mg[/tex] and [tex]w = kL[/tex]
Where
[tex]g = 32fts^{-1}[/tex]
Make m the subject in [tex]w = mg[/tex]
[tex]m = \frac{w}{g}[/tex]
[tex]m = \frac{9}{32}[/tex]
Make k the subject in [tex]w = kL[/tex]
[tex]k = \frac{w}{L}[/tex]
[tex]k = \frac{9}{1/8}[/tex]
[tex]k = 72[/tex]
Recall that: [tex]mu" + ku = F(t)[/tex]
[tex]\frac{9}{32}u" + 72u = 5cos(6t)[/tex]
Multiply through by 32
[tex]9u" + 2304u = 160cos(6t)[/tex]
[tex]u(0) = \frac{5}{12}ft[/tex] and [tex]u'(0) =0[/tex]
Which statement best describes the effect on an image when it is reflected over the x-axis?
A The image will reflect left or right, and the x-value will become Its opposite.
B The Image will reflect left or right, and the y-value will become Its opposite.
C The image will reflect up or down, and the x-value will become its opposite.
D The image will reflect up or down, and the y-value will become its opposite.
#6
A
Answer:
D. The image will reflect up or down, and the y-value will become it's opposite
Malala is following this recipe for bread rolls.
She uses 300 g of flour.
How much of the other ingredients does she use?
Recipe: Makes 12 bread rolls
400 g flour
6 g salt
12 g yeast
48 mL oil
360 mL water
Answer:
When she uses 300g of flour
She will uses: 4.5 g salt
9 g yeast
36 ml oil
270 ml water
And she will make 9 bread rolls
The admission fee at an amusement park is $2.25 for children and $5.40 for adults on a certain day 271 people enter the park and the admission fees collected a total of $972 how many children and how many adults were admitted?
Answer:
115 adults and 156 children were admitted at the amusement park.
Step-by-step explanation:
Given that the admission fee at an amusement park is $ 2.25 for children and $ 5.40 for adults, and on a certain day 271 people enter the park and the admission fees collected a total of $ 972, to determine how many children and how many adults were admitted se you must perform the following calculation:
5.40 - 2.25 = 3.15
271 x 2.25 = 609.75
(972 - 609.75) / 3.15 = X
362.25 / 3.15 = X
115 = X
(115 x 5.40) + ((271-115) x 2.25) = X
621 + (156 x 2.25) = X
621 + 351 = X
972 = X
Thus, 115 adults and 156 children were admitted at the amusement park.
1/2r-8=5 solve for r
Step-by-step explanation:
r-16=10
r=10+16
r=26
I hope this helps.
Answer:
r = 26
Step-by-step explanation:
Tuition will increase 3.5% next year, current tuition is $8707. What will tuition be next year?
Answer:
(8707 : 100) x 3.5 = 304,745
Step-by-step explanation:
Just divide by 100, then multiply by 3.5.
Which of the following is an advantage of using stratified random sampling?
A-Stratified random sampling saves time and money.
B-Stratified random sampling requires knowledge of the entire population.
C-Stratified random sampling can be used even when there is not a list of the population
D-Stratified random sampling provides more precise estimates than simple random sampling.
Answer:
A - Stratified random sampling reduces sampling variability.
Step-by-step explanation:
saw it on the review
What expression is eqivalent to 3 x + 2 (x - 1) -4? Answer
Answer:
The answer is 5x - 6
Pls mark as brainliest
maybe 5x -6
3 x + 2 (x - 1) -4
= 3x + 2x - 2 - 4
= 5x - 6
Laura says her triangle has angle measures of 100 degrees, 88 degrees , and 72 degrees she correct? Explain
Answer: because shes right
Step-by-step explanation:
Answer
CAN YALL PLEASE EXPLAIN
Step-by-step explanation:
The art students are using clay. Each student
needs 9/10 of a package of clay. There are 32
students in the class. How many packages of
clay does the class need?
Answer:
Step-by-step explanation:
29
A mirror is shaped like a parabolic curve with a width of 3 inches when the depth is 0.375 inches. Which equation
can be used to model the shape of the mirror?
Answer: it's A
Step-by-step explanation:
y= 1/6x^2
i sacrificed my grade for u lol :/
A museum plans to rope off the perimeter of the L shaped exhibit. How much rope does it need
Answer:
200ft of rope
Step-by-step explanation:
Jordan tosses a coin off a bridge into the riverThe height of the cain, f(x) , feet, is represented by the function f(x) = - 16x ^ 2 - 16x + 60 where x represents the time, in secondslong is the coin in the air?
when the equation has a value of 0 of course the coin lands, so we need to find what x leads to that value.
-16x^2-16x+60=0
We can first divide by 4 on both sides.
-4x^2-4x+15=0
Now multiply -1
4x^2+4x-15=0
(2x-3)(2x+5)=0
x=3/2 or -5/2
But because how many seconds have to be positive, x=-5/2 is an extraneous solution.
The time it have to stay in the air is 3/2 seconds.
Jada poured 3.7 liters of water into a partially-filled bucket. The bucket then contained 15.3 liters. Which diagram (A, B, or C) represents this situation?
Answer:
which ever diagram with 11.6 at the starting point
Suppose that there are 630 seats in a row. If the person to be seated is needed to sit next to someone, then what is the fewest number of seats that need to be occupied?
Answer:
Its 210
Step-by-step explanation:
Rewrite with only sin x and cos x.
sin 3x - cos x (6 points)
Select one:
a. 2 sin x - sin3x - cos x
b. 2 sin x cos2x + sin x - 2 sin3x - cos x
c. 2 sin3x cos4x + 1
d. 3 sin x cos x - sin3x - cos x
Answer:
sin(3x) = sin(x + 2x)
= sinx cos(2x) + cosx sin(2x)
= sinx [1 - 2sin2x] + cosx [2sinxcosx]
= sinx - 2sin3x + 2cos2xsinx
Please anyone help me on this
Answer:
You see where the line is at its highest you can read that point and the the points in the middle and the one at the bottom for the end and you can have your equation by seeing the points located and doing it.
Step-by-step explanation:
Thanks and your welcome! Have a great week! Hope i helped! Plz tell me if i helped! Hope you get 100%!
For a survey, a company manager assigned a number to each of the
company's 500 employees, and put the numbers in a bag. The manager
chose 20 numbers and surveyed the employees with those numbers. Did
the manager choose a random sample?
33nb;s;dvkjlifysillgbsluipgbvfrwpiyv;tr vwis
find the area of the triangle:
Answer:
its 105
Step-by-step explanation:
A flight with 104 passengers takes off at 1:15. The plane travels 560 miles in 1 hour. At that speed, how far will the plane travel in 3 hours? What information is needed to answer the question?
Answer:
To find how far the plane will travel, we need the time and length it traveled previously to form the MPH (miles per hour)
Using this information we can make an equation
560/1 = 560 miles in 1 Hour
x/3 = X miles in 3 Hours
560/1 = X/3
X= 1680
Step-by-step explanation:
Find the quotients. 25÷34 94÷-34 -57÷-13 -53÷16
Answer:
25 ÷ 34 = 25/3494 ÷ -34 = - 94/34 = -2 28/34 = -2 14/17-57 ÷ -13 = 57/13 = 4 5/13-53 ÷ 16 = - 53/16 = -3 5/16Plz help me! Thank you if you do!!!
Two angles are supplementary. The measure of the larger angle is 5 more than 4 times the measure of the smaller angle. Find the measure of both angles.
Answer:
Step-by-step explanation:
Call the larger angle x and the smaller angle y. The fact that the angles are supplementary means that they add to 180 degrees. We could write:
x+y=180
We are also told that the measure of the larger angle is 5 more than 4 times the measure of the smaller angle, which we could write as:
x=4y+5
We have a system of two equations, which we can solve for x and y. Substitute the second into the first and solve for y.
(4+5)+y=180
5y+5=180
5y=175
y=35
Now substitute y into the first equation and solve for x.
x+35=180
x=145
x=145, y=35.
Problem 2
Label the diagrams that show these two methods for calculating 19x50