Answer: 7(3x+1)
Step-by-step explanation:
there is a common factor of 7 in both 21 and 7. therefore you can take a 7 out of the equation to get 7(3x+1)
extra: 7 times 3x = 21x and 7 times 1 = 7. this is how you verify your answer is correct.
If you know two angle measures of a triangle in spherical geometry, can you always find the measure of the third angle? Explain.
A. Yes; the angle measures of a triangle always sum to 180.
B. Yes; the angle measures of a triangle always sum to 270 in spherical
geometry.
C. No; the sum of angle measures in spherical geometry is always greater than
180, but there is not a particular number they must sum to.
D. No; the sum of angle measures in spherical geometry is always greater than
270, but there is not a particular number they must sum to.
When two angle measure of a triangle are given in spherical geometry: The sum of angle measures in spherical geometry is always greater than 180, but there is not a particular number they must sum to. Choice C (No) is correct
According to the question;
Two angle measures of a triangle in spherical geometry are given.However, unlike in plane geometry where affirmatively, the sum of angles in a triangle is equal to 180°.
In spherical geometry;
The totality of the angles of a triangle on a sphere is given as 180°(1 + 4x), where x is the fraction of the sphere's surface that is enclosed by the triangle. For any positive value of x, which in each case exceeds 180°.
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A meteorologist says that there is a 50% greater chance of rain than no rain on Wednesday. What is the probability that it will rain on Wednesday?
Answer:
2/3
Step-by-step explanation:
The probability that it will rain on wednesday will be 0.75.
What is a expression? What is a mathematical equation? What is Probability?A mathematical expression is made up of terms (constants and variables) separated by mathematical operators. A mathematical equation is used to equate two expressions. Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem. The formula to calculate the probability of occurrence of an event 'A' can be written as -
P(A) = n(A)/n(S)
where -
n(A) = Number of outcomes favorable to event A.
n(S) = Total number of outcomes.
We have a meteorologist who says that there is a 50% greater chance of rain than no rain on Wednesday.
Assume that the probability that it will rain on wednesday be [x]. Now, we can write -
P[R] = P[N.R.] + 1/2
P[R] + P[R] = P[N.R.] + P[R] + 1/2
2 P[R] = 1 + 1/2
2 P[R] = 1.5
P[R] = 1.5/2
P[R] = 0.75
Therefore, the probability that it will rain on wednesday will be 0.75.
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Okay which fraction is equal to 0.370?
It should be B) because it the closest.
[tex]Let \: \: \: \: x = 0.370370.... \\ therefore \: \: \: x \: = 0.370370... \\ = > 1000x = 370.370370... \\ = > 1000x - x = 370.370370... - 0.370370... \\ = > 999x = 370 \\ = > x = \frac{370}{999} [/tex]
Answer:B)
[tex] \frac{370}{999} [/tex]
Hope it helps
REPOST*
I NEED HELP ON THESE THREE QUESTIONS*
The number line compares the numbers –6, 3, and 5.
1. Write an inequality that compares –6 and 3. Justify your inequality using the number line.
2. Write an inequality that compares 3 and 5.
3. Write an inequality that compares –6, 3, and 5.
#1
-6-3-5Hence inequality will be
[tex]\\ \sf\longmapsto -6\leqslant 5[/tex]
#2.
3<5But we need inequality
[tex]\\ \sf\longmapsto 3\leqslant 5[/tex]
#3
The inequality given by
[tex]\\ \sf\longmapsto -6\leqslant 3\leqslant 5[/tex]
Answer:
See belowStep-by-step explanation:
Given numbers:
-6, 3 and 5If we add these onto number line, we'll see them in same order from left to right.
We know the numbers increase from left to right on the number line, so the numbers to the left are smaller than the numbers to the right.
1.
-6 < 3, as -6 is to left from 32.
3 < 5, as 3 is to left from 53.
-6 < 3 < 5, as per above explanationAn angle 0 is drawn on the unit circle such that its terminal ray is in the second quadrant.
if sin 0 = 0.809, then what must be true about sin(-0)?
Answer:
sin(-θ) = -0.809
Step-by-step explanation:
To find this, simply perform the operation that is being asked, make theta negative.
If you want to find out what theta is in the first place, do this:
θ = arcsin(0.809)
θ = 54
Then to find sin of negative theta, substitute:
sin(-θ), or, sin(-54)
should equal to:
sin(-θ) = -0.809
MRs budney made 12 cupcakes. Ms dykastra made 9 cupcakes. How many cupcakes did the teachers make altogether?
Answer:
21
Step-by-step explanation:
9 + 12 = 21
Answer:
21
Step-by-step explanation:
You add 12 cupcakes plus 9 cupcakes it then will equal 21 cupcakes.
A coin collector has $2.35 in dimes and nickels. She has four more dimes than nickels. How many nickels does she have?
The coin collector has
___ nickels.
Answer:
13 nickles
Step-by-step explanation:
x= dimes
y= nickles
.1x+.05y=2.35
x-4=y
subsituting this...
.1x+.05(x-4)=2.35
.1x+.05x-.2=2.35
.15x=2.55
x=17
17-4=y
13=y
13 nickels
whats the slope of a line that goes through (-8,5) and (3,-7)?
Answer:
bk
Step-by-step explanation:
jlvlivh
Answer:
dunno what the other guy said but I'm pretty sure the answer is -12/11, or -1.09.
Four students, Amanda, Briana, Courtney, and Diana were given an assignment in their math class to create inequalities with the sme solution set as shown on the graph below.
The graph of the inequality is drawn by placing a shaded circle at 4 as the starting point of ray pointing towards negative infinity
The students that created inequalities with appropriate solution set are;
A. Amanda
D. Diana
Reasons:
Question: The table of the question is presented as follows, and the graph of the inequality is attached
[tex]\begin{array}{|l|l|}\mathbf{\underlie{Amanda}}&-3\cdot x + 5 > -7\\&\\\mathbf{\undrline{Briana}}& \dfrac{1}{2} \cdot (2\cdot x - 4) >2 \\&\\\mathbf{\undrline{Courtney}}&-7\cdot x + 8 > -3 \cdot x +24\\&\\\mathbf{\undrline{Diana}}&9\cdot x - 6 <3 \cdot x+18\end{array}\right][/tex]
Solution:
The inequality with the same solution as the given graph is x < 4
The inequalities created by the students are;
Amanda;
-3·x + 5 > -7
Rearranging the above inequality gives;
-3·x + 5 - 5 > -7 - 5
-3·x > -12
Dividing both sides by (-1) and reversing the inequality sign gives;
[tex]\dfrac{-3 \cdot x}{-3} = x < \dfrac{-12}{-3} = 4[/tex]
x < 4
Therefore;
The solution of the inequality created by Amanda is x < 4, which is the same as the solution set of the graph, and therefore, is appropriateBriana;
The solution set created by Briana is [tex]\dfrac{1}{2} \cdot (2\cdot x - 4) >2[/tex]
Multiplying both expressions on either side of the equality by 2 gives;
[tex]2\times \dfrac{1}{2} \cdot (2\cdot x - 4) >2\times 2[/tex]
(2·x - 4) > 4
2·x > 4 + 4 = 8
[tex]x > \dfrac{8}{2}[/tex]
Therefore
x > 4
The solution of the inequality created by Briana is x > 4 which is not appropriate for the given graphCourtney;
The inequality created by Courtney is -7·x + 8 > -3·x + 24
Rearranging gives;
8 - 24 > -3·x + 7·x
-16 > 4·x
4·x < -16
[tex]x < \dfrac{-16}{4}[/tex]
x < -4
Courtney's solution is x < -4, which is not an appropriate solution to the given graphDiana;
Diana's solution is 9·x - 6 < 3·x + 18
Rearranging, we get;
9·x - 3·x < 18 + 6
6·x < 24
[tex]x < \dfrac{24}{6}[/tex]
x < 4
Therefor;
Diana's solution is an appropriate solution to the given graphTherefore, the students that created inequalities with appropriate solution set are;
A. Amanda
D. Diana
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The ratio of juice to water is 1:5. How much
juice is needed to make 24 liters of punch?
Answer:
5.8 liters
Step-by-step explanation:
24 divided by 5 becomes 5.8
Choose the two numbers that are rational.
A)
V122
B)
22
8
thing
Elin
V
224
14
D)
Na
E)
24
11
snap the question to me personally
I don't understand your typing
I am mubarakamasa
Write an expression that represents the perimeter.
Simplify your perimeter expression as much as possible.
a.
X
у
X
a
b
8x + 4y + 4
2x + y +2
4x + 2y + 6
с
Solve for the value of v.
(56+6)
(40+3)
Answer:
2666 if you multiply the sum of the parenthesis
but if you add them then the answer is 105
Step-by-step explanation:
56+6=62
40+3=43
62•43= 2666
Pls someone help me with this question
Step-by-step explanation:
remember, i = sqrt(-1)
you know what an exponent means, right ?
it means you multiply the enclosed term that many times with itself.
when you envision this as a long chain of (1+i)/(1-i) multiplications, you can see you can group them into pairs, and then multiply these pairs - just half the times than for the single terms.
so,
((1+i)/(1-i))²⁰²⁰ = ((1+i)/(1-i))² ^ 1010
to get an idea what the result of the long chain of multiplications might be, let's start with the square and see, if we can find a pattern, that we then can use to come to a conclusion about the total result.
((1+i)/(1-i))² = (1+i)²/(1-i)²
(1+i)² = 1×1 + 1×i + 1×i + i² = 1 + 2i - 1 = 2i
(1-i)² = 1×1 - 1×i - 1×i + i² = 1 - 2i - 1 = -2i
so,
((1+i)/(1-i))² = 2i/-2i = -1
aha !
so,
((1+i)/(1-i))² ^ 1010 = (-1)¹⁰¹⁰
just to be sure you understand, we use the same trick again
(-1)¹⁰¹⁰ = (-1)² ^ 505 = 1⁵⁰⁵ = 1
as 1 to any power is always 1.
so, the right answer is A.
remember, a negative number to an even power results always in a positive number. and to an uneven/odd power in a negative number.
again, because such an exponent is only the summary of many multiplications.
answer please quick ok
The answer is C (-3 , -3) and (-3 , 3)
Step-by-step explanation:
the other answer was already right.
yes, C (-3, -3) and (-3, 3)
but why ?
the slope is the y/x ratio of the x and y coordinate differences when going from one point to the other.
so, x changes 0 units. y changes 6 units (from -3 to 3).
so, the slope is 6/0 = infinite or simply undefined.
this is a vertical line at x = -3.
What is the equation of the line that is parallel to 3x+4y=12 and passes though the point (4,8)
Plz help it’s due tonight!!!
The picture below shows how to solve for the missing values and what each variable is equal to.
Solve for x plz and thank you smmmm
Answer:
12x-4=80
12x=80+4
=84
x=84÷12
=7
Answer the question below
Answer:
178g
Step-by-step explanation:
The number which is subtracted from a given number is called the
Answer:
the subtrahend
I actually read it one time on wikipedia
Sebastian was driving down a road and after 4 hours he had traveled 98 miles. At this
speed, how many hours would it take Sebastian to thrive 245 miles?
Fill out the table of equivalent ratios until you have found the value of x.
Answer:
4 hours = 98miles
x hours = 245miles
4Hours × 245miles
-----------------------
98miles
= 10hours
=
1. Solve for x. Show each step of the solution.
2.5(4- x) + 12 = 21 – 4[ 2.5x + 7)
Answer:
x=-58/15
Step-by-step explanation:
Point H, with coordinates (-2,6), is part of a
figure that is transformed by dilation with a
scale factor 2. What are the coordinates of H'
after the dilation?
Step-by-step explanation:
your teacher forgot to mention if the dilation is based on the origin (0, 0).
I assume this is what was meant, but it has to be explicitly specified to be sure.
but if things are as assumed, then the scaling factor is just multiplied into the point coordinates to get the result :
H' = (-2×2, 6×2) = (-4, 12)
I need help asap
write an inequality that represents the graph .
Answer:
x ≤ -5
-5 is the point and the point is filled and pointing to the left so it's less than or equal to
Please help
Given the replacement set {2, 3, 4, 5}, solve 6x – 4 =2 x + 16
Answer:
{5}
Step-by-step explanation:
6(5)-4 = 2(5)+16
30-4 = 10+16
26 = 26
PLZ HELP!
Add.
−16 + (−29) + 49 =
4
62
94
Answer:
4 is the answer
Step-by-step explanation:
have a nice day :)
Answer:
4
Step-by-step expla
FIND THE NUMBERR!!!!!!
Answer:
3?
Step-by-step explanation:
i think thats right but sounds to easy
what is the difference between a categorical and continuous variable?
Answer:
In a categorical variable, the value is limited and usually based on a particular finite group. For example, a categorical variable can be countries, year, gender, occupation. A continuous variable, however, can take any values, from integer to decimal.
Step-by-step explanation:
HOPE IT HELPS :)
Find the measure of the indicated angle.
Answer: 88
Step-by-step explanation: angle B and C are equal. equation would be 46+46+X=180
HELLPPPPPPPPPPPPPPPPPPPPPPPPP If you get this right you get branilest
Answer:
D.
Step-by-step explanation:
-1 + 1 = 0