Answer:
20.4 miles
Step-by-step explanation:
Answer: 20.4
Step-by-step explanation: How many more miles is 27.2 than 6.8
usually these kind of equations mean to subtract, in other terms find the underlined key words
27.2-6.8= 20.4
Which ordered pair is a solution to the equation below? 3x + 2y = 10
Question 1 options:
(4, 0)
(6, -4)
(-1, 4)
Answer:
(6,-4)
Step-by-step explanation:
I have tried replacing each option with x, y in the equation.
Let's replace (6, -4) with x and y
3x+2y=10
3(6)+2(-4)=10
3(6)= 18 2(-4)= -8
18+(-8)=10
in other words:
18-8=10
The statement is true, so the correct answer is:
(6, -4)
There are 7 students in a class: 2 boys and 5 girls.If the teacher picks a group of 3 at random, what is the probability that everyone in the group is a girl?
Answer:
two sevenths
Step-by-step explanation:
HELP MEEE ASAP!! PLS
How is the distributive property used to expand expressions? For example if the equation was: 2(x + 3)=30
Step-by-step explanation:
So how is the distributive property used to expand expressions? Let's use your example.
We have 2(x + 3) = 30
It seems like we're stuck, we cannot add a variable by a real number, can we? This is when the distributive property comes into play, we will use the 2 outside of the parenthesis to multiply x and 3.
2(x) + 2(6) = 30
We multiply the number inside the parenthesis since we can't solve the inside of it, therefore causing it to expand.
4(x + 5) = 43
4(x) + 4(5) = 43
^^^ Another example
Solve 6n - 2 - 3n = 16
9514 1404 393
Answer:
n = 6
Step-by-step explanation:
Add 2 and collect terms
3n = 18
Divide by 3
n = 6
Answer: n=6
Step-by-step explanation:
First combine like terms, 6n and -3n to get 3n. Them add 2 to both sides and get 3n=18. Divide both sides by three amd get n=6
What is 2 + 2i in polar form?
The polar form of 2+2i is [tex]$2\sqrt{2}(\cos(\frac{\pi}{4}) + i\sin(\frac{\pi}{4}))$[/tex]
We are given that;
The complex number= 2+2i
Now,
To convert a complex number from rectangular form to polar form, we need to find its magnitude and argument.
The magnitude is the distance from the origin to the point (x, y) on the complex plane, and the argument is the angle between the positive x-axis and the line joining the origin and the point.
Using the Pythagorean theorem and the inverse tangent function, we get:
Magnitude = [tex]$\sqrt{x^2 + y^2}$[/tex]
Argument = [tex]$\tan^{-1}(\frac{y}{x})$[/tex]
Plugging in x = 2 and y = 2i, we get:
Magnitude = [tex]$\sqrt{2^2 + 2^2} = \sqrt{8} = 2\sqrt{2}$[/tex]
Argument = [tex]$\tan^{-1}(\frac{2}{2}) = \frac{\pi}{4}$[/tex]
Therefore, by pythagoras theorem answer will be [tex]$2\sqrt{2}(\cos(\frac{\pi}{4}) + i\sin(\frac{\pi}{4}))$[/tex].
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josie walks 3/4 miles in 1/5 hour. what is josie’s speed in miles per hour ?
Answer:
3.75 mi/h
Step-by-step explanation:
0.75 miles in 0.20 hour
Speed = Distance divided by time
0.75/0.20
3.75 mi/h
If you can do your homework at a rate of 5.3 minutes for every problem, how many problems could be done after 9.01 hours? Round to a whole number.
Answer:
I can do 102 problems in 9.01 hours.
Step-by-step explanation:
9.01 hours = 9.01 * 60 = 540.6 minutes
540.6 / 5.3 = 102
Write an equation that represents the following word problem.
Jackie has four more apples than Mark and together they have twelve apples. How many apples do each Jackie and Mark have?
a + (a - 4) = 12
a + (a + 4) = 12
both of these would work
neither of these would work
Answer:
Both would work.
Step-by-step explanation:
If we call Jackie's apples a, then Mark has a - 4 apples. Therefore, together they have a + (a - 4) apples, and we know that they have a total of 12 apples so we can write a + (a - 4) = 12 to represent the situation. On the other hand, if Mark has a apples, then Jackie has a + 4 apples, so we can also write a + (a + 4) = 12 to represent the situation as well. Therefore, both of the equations would work. Hope this helps!
Answer:
both
Step-by-step explanation:
I got it right on the quiz
WILL GIVE BRAINLIEST Katya is wanting to put artificial turf in her back yard. Her yard is 20 feet by 30 feet. She figures that she will need the drainage rock under the turf to be 1 foot deep. She goes to the home improvement store and sees the following signs for rock. What is the unit rate of brand B?
What is the exact value of sin 170⁰ cos 55⁰ + cos 170⁰ sin 55⁰?
The value of the equation sin 170° cos 55° + cos 170° sin 55° is given by
C = sin 225° and the value of C = -0.70710678118
What are trigonometric relations?
Trigonometry is the study of the relationships between the angles and the lengths of the sides of triangles
The six trigonometric functions are sin , cos , tan , cosec , sec and cot
Let the angle be θ , such that
sin θ = opposite / hypotenuse
cos θ = adjacent / hypotenuse
tan θ = opposite / adjacent
tan θ = sin θ / cos θ
cosec θ = 1/sin θ
sec θ = 1/cos θ
cot θ = 1/tan θ
Given data ,
Let the equation be represented as C
Now , the value of A is given by the equation ,
A = sin 170° cos 55° + cos 170° sin 55°
And let the first angle be = 170°
Let the second angle be = 55°
So , value of A = 170° and value of B = 55°
From the trigonometric relations , we know that
sin ( A + B ) = sin A cos B + cos A sin B be equation (1)
Substitute the values of A and B in the equation , we get
sin 170° cos 55° + cos 170° sin 55° = sin ( 170° + 55° )
So , value of equation A = sin ( 170° + 55° )
On simplifying the equation , we get
sin ( 170° + 55° ) = sin 225°
The value of sin 225° = -0.70710678118
Hence , The value of the equation sin 170° cos 55° + cos 170° sin 55° is given by C = sin 225° and the value of C = -0.70710678118
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Answer: C
Step-by-step explanation:
ur welcome
What is the value of x in the equation *x - y = 30, when y = 15?
4.
ООО
8
80
200
Answer:
45
Step-by-step explanation:
[tex]x[/tex] - [tex]y[/tex] = 30 and [tex]y[/tex] = 15
So, I guess you are just messed up with the Xs and Ys.
And I'm not sure what is the 4. ООО 8 80 200 about but here is my guess :
So [tex]x[/tex] - [tex]y[/tex] = 30 and [tex]y[/tex] = 15.
First step, substitute the [tex]y[/tex] into the equation [tex]x[/tex] - .
So, it would be
[tex]x[/tex] - 15 = 30.
Now, we need the value of [tex]x[/tex].
[tex]x[/tex] - 15 = 30
Group the terms together :
[tex]x[/tex] - 15 ( +15 ) = 30 ( +15 )
So, [tex]x[/tex] would be equals to 30 + 15. And in other words, it would be 45.
So :
[tex]x[/tex] = 45.
Wanna check whether my answer's correct?
Substitute [tex]x[/tex] into [tex]x[/tex] - 15 = 30
That would be :
45 - 15 = 30
So is 45 - 15 = 30?
Yep.
So 45 is the answer.
The value of X is 45.
HOPE THIS ANSWER HELPED :)Someone pls help ASAP thanks !!
Answer:
The volume will increase
Step-by-step explanation:
What is the slope & y-intercept of this equation? y = -1/3x - 5
Which function describes this graph ?
Find the midpoint of CD
C=(-4,7) and D=(4,-1)
([?],[])
Answer:
[tex](0,3)[/tex]
General Formulas and Concepts:
Order of Operations: BPEMDASMidpoint Formula: [tex](\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]Step-by-step explanation:
Step 1: Define
C (-4, 7)
D (4, -1)
Step 2: Find midpoint
Substitute: [tex](\frac{4-4}{2},\frac{-1+7}{2})[/tex]Add/Subtract: [tex](\frac{0}{2},\frac{6}{2})[/tex]Divide: [tex](0,3)[/tex]Which is an equation of the line passing through (-2, 3) and perpendicular to the line 5x - y = 12?
Answer:
x= -2
y= 3
Now,
5x-y = 12
5*(-2) - 3 = 12
-10 - 3 = 12
-13 = 12
So, this equation doesnot pass through (-2,3).
Need help with geometry
Answer:
The first one is x=2
hence each sides of the equilateral is 6
The second one is x=2
hence AB=BC=8 and AC=6
what is 16 3/9 -10 2/5
Answer:
5 14/5
Step-by-step explanation:
16
3
1
−10
5
2
16×3+1
−10
5
2
48+1
−10
5
2
49
−10
5
2
49
−
5
10×5+2
49
−
5
50+2
49
−
5
52
49×5
−
5×3
52×3
245
−
15
156
15
245−156/15
89/15 simplify it
5 14/5
Simplify
27^n+3 -6×3^3n+3/3^n×9^n+2
Answer:27^n+3–6*3^3n+3–n*9^n+2
Step-by-step explanation:
Is it correct to write "80.3°"?
Answer:
Yes! Temperature degrees are just like measurements.
If there are 5 levels of Factor A and 7 levels of Factor B for an ANOVA with interaction, what are the interaction degrees of freedom?
a. 24.
b. 12.
c. 10.
d. 35.
Answer:
C. 10Step-by-step explanation:
let n1 be the degree of freedom of factor A
Let n2 be the degree of freedom of factor B
If there are 5 levels of factor A, then n1 = 5
If there are 7 levels of Factor B then n2 = 7
The interaction between the degrees of freedom is expressed using the formula;
df = (n1 - 1)+(n2 - 1)
df = n1 -1 + n2- 1
df = n1+n2 -2
Substitute n1 and n2 and get df
df = 5+7-2
df = 12-2
df = 10
Hence the interaction degree of freedom is 10
Find the equation of the linear function represented by the table below in slope intercept form.
Step-by-step explanation:
let the eqn be y = mx + b.
m = (7 - 3)/(2 - 1) = 4
sub (1, 3):
3 = 4(1) + b
b = -1
therefore, equation is y = 4x - 1
Topic: coordinate geometry
If you like to venture further, feel free to check out my insta (learntionary). I'll be constantly posting math tips and notes! Thanks!
what is the quotient of(x^3+3x^2+5x+3) divided by (x+1)
I hope it is helpful for you....
A linear equation in the form Ax + By = C is in_____,where A, B, and C are____.
Standard Form, demcimals and integers
Slope intercept Form, integers
Standard form, Integers
Slope Intercept Form, fractions
Answer:
standard form, real nums
Step-by-step explanation:
PLZ HELP!!!this is due in 5mins
WILL GIVE BRAINLIEST...
Francine has a picture with a length 5/3 its width. She wants to enlarge the picture to have an area of 240 in2. What will the dimensions of the enlarged picture be?
w = 20 in, h = 12 in
w = 24 in, h = 10 in
w = 12 in, h = 20 in
Martin spent $68 on a new drone that he had been saving for. Now, he has $41 left in his savings jar. Click the equation that could be used to find the total of his savings, s, before he bought the drone.
Answer:
Step-by-step explanation:
109
learning task 1: identify similar and dissmilar fractions . on your notebook write S if the fractions are similar and D if dissmilar 1. 2/3 and 1/3
Answer:
"S" (similar fractions)
Step-by-step explanation:
Since "similar fraction" are those with the same denominator, in our case, since 2/3 and 1/3 have both the same denominator "3", these are similar fractions.
Which angle is congruent to angle 3 and explain why
I will give a brainless for a correct answer :)
Answer:
Angle 6
Step-by-step explanation:
One easy way to know if an angle is congruent is it being directly across from the angle. In this case its fairly easy to tell since (assuming) that angle 3 is a 90 degree angle and so is angle 6.
If a coconut has tree has 12 coconut on it if 25% of the coconuts fell to the ground how many fell
Answer:
It would be three coconuts hope this helped
Step-by-step explanation:
Winter is coming, so Sasha decides to buy new outdoor gear. She has a coupon good for 25% off. She buys a coat with an original price of $85.75, a pair of boots with an original price of $71.99, a scarf with an original price of $24.25, and a pair of gloves with an original price of $44.95. She pays a total of $208.94. To which item did Sasha apply her coupon? a. coat b. boots c. scarf d. gloves
Yes, the answer is B. Boots
Edgenuit.y 2021
On boots Sasha applied the coupon of 25%, option B is correct.
What is Percentage?percentage, a relative value indicating hundredth parts of any quantity.
If Sasha paid a total of $208.94 and applied the 25% coupon to one of the items, then we can set up the following equation:
$85.75 + $71.99 + $24.25 + $44.95 - 0.25x = $208.94
where x is the original price of the item to which Sasha applied the coupon.
Simplifying the equation, we get:
$226.94 - 0.25x = $208.94
0.25x = $18.00
x = $72.00
This means that the original price of the boots was $71.99, and Sasha applied the 25% coupon to the boots, getting a discounted price of:
$71.99 - 0.25($71.99) = $53.99
Therefore, On boots Sasha applied the coupon of 25%, option B is correct.
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