Answer:
16 =13
False
Step-by-step explanation:
[tex]2 + (3 + 11) =(2 + ) + 11\\\\2+\left(3+11\right)=\left(2\right)+11\\\\\mathrm{Simplify\:}2+\left(3+11\right):\quad 16\\\\\mathrm{Simplify\:}\left(2\right)+11:\quad 13\\\\16=13\\\\False[/tex]
Mr Cole has 30 students in his class. He has twice as many girls than boys. What is the ratio of girla to boys?
Answer:
12:1/2(3)
Step-by-step explanation: no problem homie
The length of a rectangle is nine more than tripled the width if the perimeter is 146 inches find the dimensions
What is the solution to the following equation? (4 points) 5(2x − 6) + 20 = 10 Group of answer choices
Answer:
x=2
Step-by-step explanation:
Question 2 (2 points)
Subtract.
A) -18 - (-12) =
on &
5
Answer:
-6
(I don’t understand what you mean by on & 5 but..)
Step-by-step explanation:
The two negatives (the -(- ) cancel each other out and make a postive, so
-18 + 12 = -6
Answer:
-6
Step-by-step explanation:
-18 - (-12)=-18+12
-18+12=-6
find the distance between (-8, -2)
and 6, -1)
Answer:
-8,-2= 6
6,-1=7
Step-by-step explanation:
get a number line and use that to it and look up how to use a number line with negative numbers it’s not hard once you see how it’s done
Hey there! I'm happy to help!
Here is how to find the distance between two points.
Find the difference between the x values.
-8-6=-14
We square this.
14²=196
We find the difference between the y values.
-2-(-1)=-2+1=-1
We square it.
-1²=1
We add up the two numbers we got.
196+1=197
And we square root it.
√197≈14
Have a wonderful day! :D
In December, the amount of snowfall was 3 2/3 feet. In January, the amount of snowfall was 4 1/8 feet. What was the amount of snowfall in the two months combined? Write your answer as a mixed number in simplest form.
Answer:
7 19/24
Step-by-step explanation:
Add. That is your answer.
Evaluate the function Find f(x)= 3x^2-x+2 a. x=3 b. x=-5 c. f(2) d. f(m) e. f(x+2)
Answer:
see explanation
Step-by-step explanation:
Given
f(x) = 3x² - x + 2
To evaluate given values of x, substitute the values of x into f(x)
(a)
f(3) = 3(3)² - 3 + 2 = 3(9) - 1 = 27 - 1 = 26
(b)
f(- 5) = 3(- 5)² - (- 5) + 2 = 3(25) + 5 + 2 = 75 + 5 + 2 = 82
(c)
f(2) = 3(2)² - 2 + 2 = 3(4) = 12
(d)
f(m) = 3m² - m + 2
(d)
f(x + 2) = 3(x + 2)² - (x + 2) + 2 ← expand (x + 2)² using FOIL
= 3(x² + 4x + 4) - x - 2 + 2
= 3x² + 12x + 12 - x ← collect like terms
= 3x² + 11x + 12
Given: Lines a and b are parallel and line c is a transversal.
Prove: ∠2 is supplementary to ∠8
What is the missing reason in the proof?
Statement Reason
1. a || b, is a transv 1. given
2. ∠6 ≅ ∠2 2. ?
3. m∠6 = m∠2 3. def. of congruent
4. ∠6 is supp. to ∠8 4. def. of linear pair
5. ∠2 is supp. to ∠8 5. congruent supplements theorem
A: vertical angles theorem
B: alternate interior angles theorem
C: corresponding angles theorem
D: alternate exterior angles theorem
Answer:
C: corresponding angles theoremStep-by-step explanation:
The angles in matching corners are called Corresponding Angles.
The Corresponding Angles Theorem: If a transversal cuts two parallel lines, their corresponding angles are congruent
∠6 ≅ ∠2 as per above statementCorrect answer choice is C.
The missing reason is corresponding angles theorem.
What are corresponding angles?Corresponding angles are angles that have the same relative position or measurement in two similar figures. They are formed when two lines, parallel or not, are intersected by a transversal.
Given that, lines a and b are parallel and line c is a transversal.
We need to prove ∠2 is supplementary to ∠8.
The proof:-
1. a || b, c is a transv. 1. given
2. ∠6 ≅ ∠2 2. corresponding angles theorem
3. m∠6 = m∠2 3. def. of congruent
4. ∠6 is supp. to ∠8 4. def. of linear pair
5. ∠2 is supp. to ∠8 5. congruent supplements theorem
Hence the missing reason is corresponding angles theorem.
Learn more about corresponding angles click;
https://brainly.com/question/1597341
#SPJ7
Points Pand Q lie in plane A. How many lines contain P
and Q?
2. Lines PQ and QP
3. The 2 lines PQ and QP plus another line that does
not lie in plane A.
1. Line PQ
. We can't name them all!
Answer:
The correct answer is :
1. Line PQ (One line PQ).
Step-by-step explanation:
The first step to solve this question is to draw the plane A with the points P and Q lying on it.
We know that given two different points there is only one line that contains this two different points.
Let's analyze each option.
''2. Lines PQ and QP''
This option is wrong because there aren't two different lines. In fact it is only one line that can be named line PQ or line QP.
''3. The 2 lines PQ and QP plus another line that does not lie in plane A.''
This option is assuming that exist three lines that contain P and Q. This option is also wrong.
''1. Line PQ''
This option is correct. It will be clarify with the drawing I will attach.
''We can't name them all!''
This option is assuming that exist infinite lines that contain P and Q. This option is wrong.
In the drawing I call the line that contains P and Q as line L.
Given that P and Q lie in plane A necessarily the line L must lie on the plane A.
Only one line contains points P and Q
The given parameters are:
Plane APoints P and QThere are at least two points in a line
This means that, a line can contain points P and Q, and any other points
Hence, only one line contains points P and Q
Read more about plane and points at:
https://brainly.com/question/17268701
What is wrong with the equation? π 4 sec(θ) tan(θ) dθ = 4 sec(θ) π π/3 = −12 π/3 There is nothing wrong with the equation. f(θ) = 4 sec(θ) tan(θ) is not continuous on the interval [π/3, π] so FTC2 cannot be applied. f(θ) = 4 tan(θ) is not continuous on the interval [π/3, π] so FTC2 cannot be applied. f(θ) = 4 sec(θ) is not continuous at θ = π/3 so FTC2 cannot be applied. The lower limit is not equal to 0, so FTC2 cannot be applied.
The given equation is not defined in the interval [tex]\left[\dfrac{\pi}{3},\pi\right][/tex]. Therefore, FTC2 is not applied and this can be determined by using the property of the trigonometric function.
Given :
Equation -- [tex]\rm \int^{\pi}_{\pi/3}7\;sec\theta\; tan\theta \;d\theta[/tex]
The following steps can be used in order to determine what is wrong with the given equation:
Step 1 - Write the given equation.
[tex]\rm \int^{\pi}_{\pi/3}7\;sec\theta\; tan\theta \;d\theta[/tex]
Step 2 - In the given equation [tex]\rm sec\theta[/tex] is not defined at [tex]\theta = \pi/2[/tex].
Step 3 - In the given equation [tex]\rm tan\theta[/tex] is not defined at [tex]\theta = \pi/2[/tex].
Step 4 - From the above steps, it can be concluded that the given equation is not defined in the interval [tex]\left[\dfrac{\pi}{3},\pi\right][/tex]. Therefore, FTC2 is not applied.
For more information, refer to the link given below:
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divide 738 in the ratio
Answer:
could you say the whole question?
Step-by-step explanation:
thanks alot
Which of the following is a solution to the equation −25x = 10?
x = -4
x = -4
x = -25
x = -25
x = 4
x = 4
x = 25
Answer: x=-0.4
Step-by-step explanation:
Which of the following reltions is not a function?
a
{(- 1, 4), (1, 6), (4, 10)}
b
{(- 1, 2), (1, 3), (- 1, 4)}
c
{(- 1, 6), (4, 7), (5, 6)}
d
{(- 1, 2), (1, 2), (3, 3)}
Answer:
B is the correct answer
Step-by-step explanation:
There are two y coordinates for one x coordinate
Can someone solve this
Atlanta received 3 inches of snow in a 12-hour period. How many inches were falling per hour?
Need help on this question
Simplify the expression: –5(–6 + 2c)
Steps to solve:
-5(-6 + 2c)
~Distribute
30 - 10c
Best of Luck!
Can someone Help me with this Question.
Answer:
D.
Step-by-step explanation:
-9+8 *
8+(-1) *
-6+(-2) *
1. -1
2. 7
3.-8
i hope these are the answers
Answer:
-1,7, - 8
Step-by-step explanation:
-9 +8 =-1
8 +(-1)=7
-6 +(-2)=-8
The salt water fish tank at your house is filled with 22 inches of water. The water evaporates at a steady rate of 2 inches per week. Write an equation that approximates the depth y of water in the aquarium x weeks after you fill it.
Answer:
y = 22 - 2x
Step-by-step explanation:
Given the following :
Amount of water in salt water fish tank = 22 inches
Evaporation occurs steadily at the rate ; 2 inches per week
The depth y of water in the aquarium x weeks after filling :
The depth of water reduces as evaporation occurs ; and as such reduces by 2 inches per week
Hence,
After x weeks, the depth 'y' of water in the aquarium will be :
y = Initial position of water - 2(number of weeks)
y = 22 - 2x
y = new depth
x = number of weeks
Simplify.
y2.9y+ 20
y2 +10y + 24
Answer:
12y+24
Step-by-step explanation:
You can add 2y and 10y due to the same variable, y.
A student throws a heavy ball downward off the top of a building with a speed of 18m/s. The ball reaches a speed of 41m/s just before striking the ground. Neglect drag.
Complete question:
A student throws a heavy ball downward off the top of a building with a speed of 18m/s. The ball reaches a speed of 41m/s just before striking the ground. Neglect drag, find the height of the building.
Answer:
The height of the building is 69.235 m
Step-by-step explanation:
Given;
initial velocity of the ball, u = 18 m/s
final velocity of the ball, v = 41 m/s
The height of the building is equal to distance traveled by the ball downward.
Apply the following kinematic equation;
v² = u² + 2gh
where;
g is acceleration due to gravity
h is height of the building
41² = 18² + 2(9.8)h
1681 = 324 + 19.6h
19.6h = 1681 - 324
19.6h = 1357
h = 1357 / 19.6
h = 69.235 m
Therefore, the height of the building is 69.235 m
I need a little more help
Evaluate
38 – (7 + 2 x 4) + 1
Answer:
24
Step-by-step explanation:
Hope that's right
Answer:
24
Step-by-step explanation:
First Pemdas first everything inside the parenthesis then times it by negative then add everything up
If you needed to buy at least 5 water bottles AND at least 8 water bottles, how many water bottles would you need to by?
Answer: You should get 15 water bottles
Step-by-step explanation: You need at least 8 water bottles and at least 5 water bottles so you should get 15 because 9+6.
The number of water bottles you would need to buy is at least 13 water bottles
At least means ≥ (greater than or equal to)let
b = water bottles
Statement 1:
at least 5 water bottles
b ≥ 5
statement 2:
at least 8 water bottles
b ≥ 8
The total number of water bottles you need to buy is at least 5 + 8b ≥ 13
Therefore, the number of water bottles you would need to buy is at least 13 water bottles
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1) What should h be so that the expression h? - 2h has a value of 3 ?
Th = 1
Oh=-1
h = 2
h = -2
20. Solve for r
T=1+r/n
Answer:
r = nT-n
Step-by-step explanation:
T = 1 + r/nT-1 = r/nn(T-1) = rnT-n = rStep-by-step explanation:
T = 1 + r/n
T-1 = r/n
n(T-1) = r
nT-n = r
Answer:
r = nT-n
What is 0.421 x 5.6 ?
Answer:
=2.3576x
Step-by-step explanation:
0.421x(5.6)
=2.3576x
will give away lots of points! 25 total!!!!
Answer:
maybe the answer is or "ABC" or "BCA" hope i halp :)
Answer:
mmk
Step-by-step explanation:
Jan completes 60 trials of pulling colored marbles out of a bag. She pulled green 15 times. If there are 250 marbles in the bag, how many of them are probably green?
Answer:
the answer is 63 green marbles
Step-by-step explanation:
Answer:
Green marbles are probably = 62.5.
Step-by-step explanation:
Since Jan completes 60 trials and pulled green 15 times, the probability of any marble being green can be calculated as:
= 15/60
= 0.25
With 250 marbles in the bag, using the probability value of green marbles calculated above, the number of green marbles can be estimated as:
= 0.25 of 250
= 62.5
This shows that since there is a 25% probability of obtaining a green marble from 60 trials of pulling colored marbles out of the bag containing 250 marbles, then the total number of green marbles will be equal to 62 or 63.
