Answers
Answer: -2x
Step-by-step explanation:
i'm pretty sure that's right ;)
Related Questions
If sin(t) = 3/5 and t is in the 2nd quadrant, find cos(t).
Answers
Cosine is [tex]\frac{hypotenuse}{adjacent}[/tex].
Apply the equation:
[tex]sin(t) = \frac{3}{5} \\3^2 + b^2 = 5^2\\b^2 = 5^2 - 3^2\\\\\sqrt{b^2} = \sqrt{5^2}- \sqrt{3^2}\\\\\\b = 5 - 3 \\\\b = 2[/tex]
B is the adjacent side so
cosine is:
Cos(t) = 5/2
Have a great day,
And I hope this helps you!
Below are two different functions, f(x) and g(x). What can be determined about their y-intercepts? graph going through negative 1, negative 1 and negative 4, negative 1 x g(x) 4 9 6 13 8 17 (1 point) The function g(x) has a higher y-intercept. The function f(x) has a higher y-intercept. They both have the same y-intercept. The relationship between y-intercepts cannot be determined.
Answers
Answer:
The function g(x) has a higher y-intercept.
Step-by-step explanation:
First function f(x):
Slope = (-1, - (-1) / -4 - -1) = 0
So its equation is y = -1.
The y-intercept is (0, -1).
Second function g(x):
Slope = (13-9)/ (6-4) = 2.
y - y1 = m(x - x1) where m = slope and (x1, y1) is a point on the line, so we have:
y - 9 = 2(x - 4)
y = 2x - 8 + 9
y = 2x + 1.
So the y-intercept is (0, 1).
write an expression that removes any perfect square factors in the radicand. Assume all variables are positive.
Answers
The sum of three consecutive integers is −387. Find the three integers.
Answers
Answer: -130, - 129, - 128
Step-by-step explanation:
x + x+1 + x+2 = - 387
3x + 3 = - 387
3x = - 387 - 3
x = - 390/3
x = - 130
Hai! What Is 4 Squared???
Answers
Answer:
16
Step-by-step explanation:
[tex]x^{2}[/tex] = [tex]x[/tex] multiplied by [tex]x[/tex]
so [tex]4^{2}[/tex] = 16
Answer:
16
Step-by-step explanation:
4 squared should look like this:
4²
That means we just multiply 4 twice:
4 x 4
16
The coach made the students run for 11 minutes 24 seconds and then walk for 5 minutes 48 seconds. What is the total time the students ran and walked?
The coach made the students run for 11 minutes 24 seconds and then walk for 5 minutes 48 seconds. What is the total time the students ran and walked?
Answers
Answer:
17minutes 10sec
Step-by-step explanation:
Total time running and walking
= time ran + time walked
= 11 minutes 24 sec + 5 minutes 48sec
= 16minutes 70sec
( now we know 60 sec = 1 min) so..
= 17minute 10sec
I need a bit of help I don't really get the question
Answers
Answer:
[tex]8p + 5c = p \\ 5c = p - 8p \\ 5c = - 7p \\ \frac{5c}{5} = \frac{ - 7p}{5} \\ \\ c = - \frac{7}{5} p[/tex]
therefore:
[tex]{ \boxed{ \boxed{c = - 1 \frac{2}{5} \: p}}}[/tex]
Complete the missing parts of the
table for the following function.
y = (3)*
X -2 -1 0 1 2 3
y| [?] 2 [1
2
1
글을
[]
1
1
Answers
Answer:
y=1
Step-by-step explanation:
the missing parts of the table
15.
(4x +- 21)
(x - 23)
Answers
Answer:
4
2
−
1
1
3
+
4
8
3
Step-by-step explanation:
Can someone help me (Geometry)
Answers
[tex]x+x+4=72\\\\\Rightarrow2x=68\\\\\Rightarrow x=34[/tex]
3) Sandy can read 25 words in 5 seconds. At that
rate,
how many words can she read in 6 seconds?
Answers
Answer:
30 words
Step-by-step explanation:
30/5 = 6
A study took a group of adults and randomly divided them into two groups. One group was told to drink tea every night for a week, while the other group was told not to drink tea that week. Researchers then compared when each group fell asleep. Does this describe an observational research study or an experimental research study?
Answers
Answer:
2nd one
Step-by-step explanation:
experimental research
The case described here is an experimental research study.
In an experimental research study, the researcher deliberately manipulates one or more variables (in this case, whether or not the participants drink tea) and observes the effects on other variables (in this case, the time each group falls asleep). The researcher randomly assigns participants to different groups, ensuring that any differences observed between the groups can be attributed to the manipulation of the variable of interest.
In this scenario, the researcher randomly divided the adults into two groups and instructed one group to drink tea every night while the other group was told not to drink tea. By manipulating the variable (tea consumption) and comparing the outcomes (time of falling asleep) between the two groups, the study follows the experimental research design.
Learn more about Research here:
https://brainly.com/question/16999040
#SPJ2
Add the fractions and show me step by step on how to do it
10/16 + 4/8
Answers
5+4= 9
9/8
9/8= 1 1/8
1 and 1/8
use long division to find the quotient and remainder when 2x^3 + 6x^2 - x + 5 divided by 2x^2 - 1.
Answers
Answer:
Qoutient=x+3
Remainder=8
Answer:
Quotient ---> x + 3
Reminder ---> 8
Step-by-step explanation:
See the attached image, I have included all the necessary steps!
Albert purchased a large rectangular field so that he could farm the land. The field measures 17 miles long and 14 miles wide. What is the area of his field?
Answers
Answer:
Step-by-step explanation:
Diện tích ruộng anh ta là :
17×14=238(dặm)
Vậy diện tích ruộng của anh ta là 238 dặm
The area of his field is 238 sq mi.
Given the following dimensions for the rectangular field:
Length = 17 miles
Width = 14 miles
Area of his rectangular field = area of rectangle = [tex]length \times width[/tex]
Plug in the values as follows:
[tex]Area = 17 \times 14\\Area = 238 mi^{2}[/tex]
The area of Albert's field is 238 square mile
Learn more about area of rectangle here:
https://brainly.com/question/12932084
The accompanying bar graph shows the percentage of adults in a certain city who smoked cigarettes for selected years from 1970 through 2010.
The mathematical model p + x/2 = 40 describes the percentage, p, of adults who smoked cigarettes x years after 1970. Use this information to answer questions (a) and (b) below.
Does the mathematical model underestimate or overestimate the percentage of adults who smoked cigarettes in 2010? By how much? Select the correct choice below and fill in the corresponding answer box to complete your choice.
Answers
Finding the numerical value of the function, it is found that:
Considering that the percentage of smokers in 2010 is of 23%, while the model estimates at 20%, it is found that the model underestimated the percentage by 3%.
--------------------------------
The numerical value of a function f(x) at x = a is f(a).
--------------------------------
The percentage of smokers in x years after 1970 is given by:
[tex]p + \frac{x}{2} = 40[/tex]
Then
[tex]p(x) = 40 - \frac{x}{2}[/tex]
--------------------------------
2010 is 2010 - 1970 = 40 years after 1970, thus the percentage is p(40).
[tex]p(40) = 40 - \frac{40}{2} = 40 - 20 = 20[/tex]
Considering that the percentage of smokers in 2010 is of 23%, while the model estimates at 20%, it is found that the model underestimated the percentage by 3%.
A similar problem is given at https://brainly.com/question/24488747
Plz help before 12 j
Answers
2. Not equal to
3. Is equal to
4. Not equal to
5. Is equal to
Step-by-step explanation:
1 - 5 is not equal to 8
2 - 16 is not equal to 8
3 - 12 is equal to 12
4 - 5 is not equal to 17
5 - 0 is not equal to 4
Please answer my question as quick a you can
Answers
Option a
Option be is seeming to be irrational but its notHow?
[tex]\\ \sf\longmapsto \dfrac{\sqrt{100}}{3}[/tex]
[tex]\\ \sf\longmapsto \dfrac{10}{3}[/tex]
Hence correct option is a
Jay found 1/3 of a sheet cake in the kitchen. He ate 1/2 of it.What fraction of the whole cake did he eat?
Answers
Answer:
1/6
Step-by-step explanation:
Multiply the fractions to find how much of the whole cake he ate.
1/3 * 1/2
1/6
Best of Luck!
Answer:
1/6
Step-by-step explanation:
He ate 1/2 of 1/3 of the cake, so the fraction of the whole cake he ate is 1/2 x 1/3. Multiplying fractions is easy, simply multiply the numerator of each fraction (the numbers at the top of each fraction) and the denominator of each fraction (the numbers at the. bottom of each fraction). Therefore, 1/2 x 1/3 = 1/6.
30 points please help
Which ordered pair is a solution of x−5y<7?
Group of answer choices
A. (3,2)
B. (2,−3)
C. (−3,2)
D. (−6,0)
Answers
Its option C
Verification
[tex]\\ \sf\longmapsto x-5y\lt 7[/tex]
[tex]\\ \sf\longmapsto -3-5(2)\lt 7[/tex]
[tex]\\ \sf\longmapsto -3-10\lt 7[/tex]
[tex]\\ \sf\longmapsto -13\lt 7[/tex]
What are the x-intercepts of the equation?
y=x2−9x2−16
Answers
Answer:
x = 17
Step-by-step explanation:
[tex]y = x2 - 9 \times 2 - 16[/tex]
[tex]0 = 2x - 18 - 16[/tex]
[tex]0 = 2x - 34[/tex]
[tex] - 2x = - 34[/tex]
[tex]x = 17[/tex]
let’s just pretend this is 20 characters long
Explanation needed with the answer
Answers
Answer:
[tex] x = 20° [/tex]
Step-by-step explanation:
attached
John's temperature is 98.6 degrees.
Positive or Negative
Answers
Answer:
positive, its above 0
Step-by-step explanation:
Answer: positive (negative is below 0 degrees)
Step-by-step explanation:
Find the distance between the pair of points.
N(-5. - 14), P(-5. - 3)
d=(Simplify your answer. Type an exact answer, using radicals as needed)
Answers
Answer:
78
Step-by-step explanation:show your work
Write a addition equation or a subtraction your choice to section your diagram
Answers
Answer:
7 - 2 = 5
Step-by-step explanation:
pls give me brainliest i need it to level up
Fun Fact: The hagfish is the only animal that has a skull but no spine.
An airplane is flying in a direction of 165° with an airspeed of 650 mph. The wind is blowing at 50 mph in a direction of N 30°E What is the ground speed and direction of the plane?
A) ground speed: 658 mph; direction 108°
B) ground speed: 639 mph; direction 161°
C) ground speed: 686 mph; direction 108°
D) ground speed: 698 mph; direction 161°
Answers
Direction is usually specified as bearing, however, with regards to vectors direction is specified relative to the positive, x-axis
The correct option for the ground speed and direction of the plane is option B
B) Ground speed: 639 mph; direction 161°
The given parameters are;
Direction of airplane = 165° (vector, measured from the horizontal x-axis)
Airspeed of airplane = 650 mph
The speed of the wind blowing = 50 mph
The direction of the wind = N30°E
Required:
The ground speed of the airplane
Solution:
The velocity of the airplane in vector form is found as follows;
[tex]\overset \longrightarrow P[/tex] = 650 × cos(165)·i + 650 × sin(165)·j ≈ -628·i + 168·j
The velocity of the wind in vector form is found as follows;
[tex]\overset \longrightarrow W[/tex] = 50 × cos(60)·i + 50 × sin(60)·j ≈ 25·i + 43·j
The sum of the vectors, [tex]\overset \longrightarrow R[/tex] = The ground speed, therefore;
[tex]\overset \longrightarrow R[/tex] = [tex]\overset \longrightarrow P[/tex] + [tex]\overset \longrightarrow W[/tex]
[tex]\overset \longrightarrow R[/tex] = (25 - 628)·i + (43 + 168)·j = -603·i + 211·j
The magnitude of the ground speed = √((-603)² + 211²) ≈ 639
The magnitude of the ground speed ≈ 639 mph
The direction, Φ ≈ arctan(211/(-603)) ≈ -19°
Φ is measured from the negative x-axis in the clockwise direction, therefore;
The direction of the airplane from the positive x-axis, in the anticlockwise direction, θ = 180° + Φ
θ = 180° + (-19) = 161°
The direction of the airplane measured from the positive x-axis, θ ≈ 161°
Therefore, the correct option is ground speed; 639 mph; direction 161°
Learn more about vectors here:
https://brainly.com/question/16403737
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Three boys cut out hundredths decimal models. Fred does not shade any of his models. Edward shades nine tenths of one model. Jeff shades one model and seven tenths of another model. What decimal represents the amount each boy shades?
Answers
Answer:
Step-by-step explanation:
Fred does not shade any model
Edwards shades nine tenths : 0.9
Jeff shades shades seven tenths : 0.7
so add 0.9 + 0.7, you get 0.16 : sixteen hundredths .
help plsss i will mark you brainlest
Answers
Answer:
x= 15
Step-by-step explanation:
Answer:
(4x-80)+60+60=180 [sum of angles of triangle]
4x-80+60+60=180
4x+40=180
4x=180-40
x=140/4
x=35
the volume of a cuboid box is 60cm³.the length and breadth of the box are respectively 6cm and 2cm. calculate its height.
take a picture and send me the answer step by step ASAP
Answers
Answer:
height = 5 cm
Step-by-step explanation:
The volume (V) of a cuboid is calculated as
V = lbh ( l is length, b is breadth, h is height )
Here l = 6, b = 2 and V = 60 , then
6 × 2 × h = 60 , that is
12h = 60 ( divide both sides by 12 )
h = 5
That is height is 5 cm
Plz help ASAP !!!!!!!!!!!
Answers
Answer:
Domain: x>-3 Range: y [tex]\geq[/tex]-5
Step-by-step explanation:
The domain at the left has an open circle, meaning it is not uncluded in the domain. The domain would start from there, not including -3, and go on towards positive infinity. The range, at its lowest starts at -5, including negatove 5, since it is a closed circle, and goes up from there.
