Which one is an example of an equation?
Answer: 5x + 5 = 30
Step-by-step explanation: All equations have a equal sign at the end. Hope this helped!
Who are some good you tubers to watch?
Answer:
Cocomelon
Their videos are pretty good!
Help me plz this stuff is hard
Answer:
[tex]x = 25.9[/tex]
Step-by-step explanation:
Apply law of sines.
[tex] \frac{23}{ \sin(22) } = \frac{x}{ \sin(25) } [/tex]
[tex] \frac{23}{ \sin(22) } \times \sin(25) = x[/tex]
[tex]x = 25.9[/tex]
Answer:
25.9
Step-by-step explanation:
By sine rule:
[tex] \frac{BC}{ \sin 25 \degree} = \frac{23}{ \sin 22 \degree} \\ \\ BC = \frac{23 \sin 25 \degree}{ \sin 22 \degree} \\ \\ BC = \frac{9.72022002}{ \sin 22 \degree} \\ \\BC = 25.947808156 \\ \\ BC \approx \: 25.9[/tex]
HELP ASAP ITS DUE TOMORROW PLS!!!!!
Answer:
Im pretty sure the answe is C
Step-by-step explanation:
im very bad at explaining im sorry
Select the correct answer. What is the approximate distance between points D and E? Round your answer to the nearest hundredth. A.
Answer:
The approximate distance between points D and E is 8.25
Step-by-step explanation:
The figure is as follows :
To find - What is the approximate distance between points D and E ?
Solution -
By Pythagoras Theorem, we get
(DE)² = (FE)² + (DF)²
= (8)² + (2)²
= 64 + 4
= 68
⇒(DE)² = 68
⇒DE = √68
⇒DE = 8.246
∴ we get
The approximate distance between points D and E is 8.25
A right triangle has a side length of 12 m and a side length of 15 m. Find the length of the missing hypotenuse. Rounded to the nearest tenth
Answer:
19.2
Step-by-step explanation:
12 squared + 15 squared= C squared
144 + 225 = C squared
369 = C squared
Do square root of 369, which is
19.2
A sign on the road says " Speed limit, 60 miles per hour. Let s be the speed of car.Write an inequality that matches the information on the sign
Answer: s ≤ 60
Step-by-step explanation:
The common inequality signs include:
> which is greater than
< which is less than
= which is equal to
≥ which is greater than or equal to
≤ which is less than or equal to
Since the speed limit is 60 miles per hour, it simply means that the speed limit is less than or equal to 60 miles per hour. This will be:
s ≤ 60
The above means the speed is less than or equal to 60 miles per hour
How can I find the height of a pyramid that has a base of 13m and a 13m lateral height
Answer:
Calculate the unknown defining height, slant height, surface area, side length and ... Online calculators and formulas for a pyramid and other geometry problems. ... h = height s = slant height a = side length. P = perimeter of base e = lateral .
Step-by-step explanation:
Find a positive angle less than 360° that is coterminal with the given angle.
- 215°
A positive angle less than 360° that is coterminal with - 215° is
Answer:
The positive angle less than 360° that is coterminal with -215° has a measure of 145°.
Step-by-step explanation:
From Geometry, we know that angles form a family of coterminal angles as function of number of revolutions done on original angle. We can represent the set of all coterminal angles by means of the following expression:
[tex]\theta_{c} = \theta_{o} + 360\cdot i[/tex], [tex]i \in \mathbb{Z}[/tex] (1)
Where:
[tex]\theta_{o}[/tex] - Original angle, in sexagesimal degrees.
[tex]\theta_{c}[/tex] - Coterminal angle, in sexagesimal degrees.
[tex]i[/tex] - Coterminal angle index, no unit.
If we know that [tex]\theta_{o} = -215^{\circ}[/tex] and [tex]i = 1[/tex], then the coterminal angle that is less than 360° is:
[tex]\theta_{c} = -215^{\circ} + 360\cdot (1)[/tex]
[tex]\theta_{c} = 145^{\circ}[/tex]
The positive angle less than 360° that is coterminal with -215° has a measure of 145°.
Given: Triangle ABC, D belongs to AC, BD=DC, Measure of angle 1 = measure of angle 2, measure of angle BDC = 100 degrees, Find the measure of angle A, B, and C.
https://homework.russianschool.com/resource?key=00qo5
PLSSS HELP!
Answer:
m of angle A is 60 degrees, m of angle B is 80 degrees, and m of angle C is 40 degrees
Step-by-step explanation:
Given: BD=DC, this means the triangle BDC is isoceles because of the two equal sides.
Using the base angles Thereom we can tell that m of angle C is equal to m of angle 2.
Given that m of angle BDC is 100 degrees, using sum of angles in triangle we develop the equation
m of angle C= 180-100-angle 2
since angle 2 is equal to angle C we see that they are bothe equal to 40 degrees.
Now for B, we can easily tell it is 80 degrees since we found that angle 2 is 40 degrees and angle 1 is equal to angle 2 40+40=80 degrees
Lastly, for A we can tell it is 60 degrees, the reason is we found angle 1 is 40 degrees and we know that BDA=80 using supplemantary angles to BDC.
Develop the equation A=180-(80+40)=60 degrees
The value of measure of ∠A is, 60° , ∠B is 80° and ∠C is 40°.
What is mean by Triangle?A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.
We have to given that;
In Triangle ABC,
D belongs to AC,
BD = DC,
Measure of angle 1 = measure of angle 2,
Measure of angle BDC = 100 degrees.
Here, we have;
⇒ BD = DC
Hence, We get;
⇒ ∠DBC = ∠BCD
(By opposite angle of equal side are equal.)
Now, In ΔBDC;
⇒ ∠BDC + ∠DBC + ∠BCD = 180°
⇒ 100° + 2∠DBC= 180°
⇒ 2 ∠DBC = 180° - 100°
⇒ 2 ∠DBC = 80°
⇒ ∠DBC = 40°
⇒ ∠DBC = ∠BCD = ∠2 = 40°
Hence, ∠ C = 40°
Here, We have to given that;
⇒ ∠1 = ∠2
Hence, ∠1 = ∠2 = 40°
Now, We have by linear pair angle;
⇒ ∠BDC + ∠BDA = 180°
⇒ 100° + ∠BDA = 180°
⇒ ∠BDA = 80°
In ΔABD;
⇒ ∠ABD + ∠BDA + ∠BAD = 180°
⇒ 40° + 80° + ∠BAD = 180°
⇒ ∠BAD = 180° - 120°
⇒ ∠BAD = 60°
⇒ ∠A = 60°
So, ∠ B = ∠1 + ∠2
= 40° + 40°
= 80°
Thus, We get;
The value of measure of ∠A is, 60° , ∠B is 80° and ∠C is 40°.
Learn more about the triangle visit;
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brainliest goes to whoever answers the question correctly also if you want more points answer my other questions (what is the rate of change?)
Answer:
The rate of change is to mathematically describe the percentage change in value over a period of time
PLEASE HELP
Write a linear equation representing the information shown in the table.
A)
y = –2∕5x – 5
B)
y = 2∕5x – 5
C)
y = –5∕2x – 5
D)
y = 5∕2x – 5
Answer:
D
Step-by-step explanation:
the only one that make sense
2.1 x 10-3 x 2 x 102 =
HELPPP
Answer:
4.2 × [tex]10^{-1}[/tex]
Step-by-step explanation:
2.1 × [tex]10^{-3}[/tex] × 2 × [tex]10^{2}[/tex]
2.1 + 2 = 4.2
2 - 3 = - 1
4.2 × [tex]10^{-1}[/tex]
Answer:
2.1x^10+−3x^104
Step-by-step explanation:
PLZZ HELP
2/3 divided by 5
Answer:
2/15
Step-by-step explanation:
2/3 divided 5 is really just:
2/3*1/5
that is just 2/15!
Answer:
2/15
Step-by-step explanation:
(Keep Change Flip) KCF
2/3 / 5 =
2/3 *1/5 = 2/15
When dividing you do the opposite which is multiplication.
Help ASAP please
a bowling ball is 4.25 inches.
Calculate the volume of the bowling ball.
321.55 cubic in.
56.75 cubic in.
8.5 cubic in.
4.25 cubic in
Answer:
a) volume = 321.55 in³
Step-by-step explanation:
volume = 4/3πr³ = 4/3(3.14)4.25³) = 321.55 in³
Solve each system of linear equations by using substitution method.
x - y = -2
2x + y =5
100 POINTS PLS ANSWER
Answer:
x = 1, y = 3
Step-by-step explanation:
Given:
x - y = -2
2x + y = 5
First, add y on both sides for the first equation.
x = y - 2
Then, plug in x into the second equation.
2(y -2) + y = 5
2y - 4 + y = 5
3y = 9
y = 3.
Next, now that you've found y, plug it into either the first or second equation to solve for x. I'll be using the second equation.
2x + 3 = 5
2x = 2
x = 1.
Ans: x = 1, y = 3
Stella invested $6100 in an account paying interest rate of 6 1/2 % compounded monthly. Katherine invested $6100 in an account paying an interest rate of 6 5/8 % compounded quarterly. After 7 years how much more money would Katherine have in here account than Stella, to the nearest dollar
Answer:
Katherine would have $109.54 more than Stella.
Step-by-step explanation:
Giving the following information:
Stella:
Initial investment (PV)= $6,100
Interest rate (i)= 0.065/12= 0.0054 per month
Number of periods (n)= 7*12= 84
Katherine:
Initial investment (PV)= $6,100
Interest rate (i)= 0.06625/4= 0.0167
Number of periods (n)= 7*4= 28
To calculate the future value, we need to use the following formula:
FV= PV*(1 + i)^n
Stella:
FV= 6,100*(1.0054^84)
FV= $9,589.5
Katherine:
FV= 6,100*(1.0167^28)
FV= $9,699.04
Difference= $109.54
Katherine would have $109.54 more than Stella.
A rectangular piece of board is 0.894 m long and 0.665 m wide. Which of the following shows the boards dimensions, each written to one decimal place?
A. 8.94m x 6.65m
B. 0.9m x 0.7m
C. 0.89m x 0.66m
D. 0.8m x 0.6m
Answer:
Step-by-step explanation:
The dimension of boards to one decimal place is 0.9m * 0.7m
What do we mean by dimensions ?"Dimensions in mathematics are the measure of the size or distance of an object or region or space in one direction. In simpler terms, it is the measurement of the length, width, and height of anything.
Dimensions are generally expressed as:
Length
Breadth
Width
Height or Depth"
The correct dimension of board are to one decimal place is 0.9m * 0.66m
Hence, B is the correct option.
To know more about dimensions here
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Mahmoud is working out the height, h metres, of a tower
BT which stands on level ground.
He measures the angle TAB as 25°.
He cannot measure the distance AB and so he walks 80 m
from A to C, where angle ACB = 18° and angle ABC = 90°.
Calculate
Answer:
24.72 m
11.53 m
Step-by-step explanation:
Horizontal distance AB can be obtained from △ABC
From trigonometry :
Sin18° = opposite / hypotenus
Sin18° = AB / 80
AB = 0.3090169 * 80
AB = 24.72 m
The height BT, of tower from △ABT
From trigonometry :
Tan25° = opposite / Adjacent
Tan25° = h / 24.72m
h = Tan25 * 24.72
h = 11.527
h = 11.53 m
Hence, height of tower BT = 11.53 m
The table shows the results of a survey at a local school. The survey asked 7th and 8th graders if they pack their lunches or if they buy their lunches in the school cafeteria. Here are the results.
47 seventh graders were surveyed and 19 of them pack their lunches.
52 eighth graders were surveyed and 33 of them buy their lunches.
Construct a two-way frequency table for the data.
Answer: The table is shown in the attached image
Row One: 19, 28, 47Row Two: 19, 33, 52Row Three: 38, 61, 99The commas are not to be entered in any of the boxes. Just the numbers only.
=====================================================
Explanation:
"47 seventh graders were surveyed" means that 47 goes in the last value of the first row. This is the total of the 7th graders. Of this total, 19 pack their lunches (ie bring them from home). That indicates 47-19 = 28 seventh graders buy their lunch.
For row one, we have the values: 19, 28, 47 in that exact order when going from left to right.
------------------
We use the same idea for the 8th graders.
52 total eighth graders, 33 buy their lunch
52-33 = 19 pack their lunch
For row two, the values from left to right are: 19, 33, 52 in that exact order.
To get the values in row 3, we add up everything that's over top of it.
Meaning for column 1, we have 19+19 = 38 total students who pack their lunch. In column 2, there are 28+33 = 61 people who buy their lunch. Lastly, column 3 we have 47+52 = 99 students overall.
For row three, the values from left to right are: 38, 61, 99
Note that adding the first two items of row three gets us 38+61 = 99
It's not a coincidence that this is happening. This is just another way to get the grand total of 99. You could also add up the four values that are not in the total column or total row to get 19+28+19+33 = 99. Again, this is not a coincidence we end up with 99.
Refer to the table below to see a summary.
hello please help i’ll give brainliest
Answer:
B.) teacher
Step-by-step explanation:
good luck!!!
can you give me brainliest pls im trying to level up lol
Daniel has 6 erasers. he give one to p.j. and. he gives one to ken. he keeps. the rest. what friction of his erasers did he give away.
Answer:1/3
Step-by-step explanation:
He gave away 2/6 of the erasers. You can simplify that by doing 2 divided by 2 6 divided by 2 which makes it 1/3. Daniel gave away 1/3 of the erasers.
Answer:
1/3
Step-by-step explanation:
he gave one to p.j=1/6
he gave one to Ken=1/6
1/6 +1/6=2/6=1/3
An athlete jumps these four distances In the long jump competition which jump does not run to 4.7 m²
Answer:
3rd jump
Step-by-step explanation:
The distance jumped is given in the table attached. to get the jump that do not round up to 4.7 meters, we round each of the jump to one decimal place and then select the jump that does not round up to 4.7 meters.
Therefore rounding off gives:
1st jump: 4.746 meters = 4.7 meters to one decimal place
2nd jump: 4.680 meters = 4.7 meters to one decimal place
3rd jump: 4.647 meters = 4.6 meters to one decimal place (does not round to 4.7 meters)
4th jump = 4.733 meters = 4.7 meters to one decimal place
Due to concerns about the underinflation of footballs, the National Football League (NFL) created a series of standards that must be met for the weight, length, and the long and short circumferences of each ball. It is stated that the balls are to be inflated to between 12.5 to 13.5 pounds. The pressure output by the ball pump is approximately Normal with a mean of 13 pounds and a standard deviation of 0.25 pounds. At each game, the home team must supply 12 balls to the referee 2 hours and 15 minutes prior to the start of the game for inspection.
(a) What is the probability that a randomly selected ball will not meet the inflation specifications?
Answer: 13.5/12.5
Step-by-step explanation:
Based on the weight requirement that the ball should be inflated to, the probability that a random ball will not meet this specification is 0.0456.
What is the probability a ball will not meet inflation specifications?The balls are to be inflated to reach between 12.5 to 13.5 pounds.
The probability they won't meet this specification is:
= 1 - ( P (Z₁₃.₅) - P (Z₁₂.₅) )
Z₁₃.₅ = (13.5 - 13) / 0.25
= 2
Z₁₂.₅ = (12.5 - 13) / 0.25
= -2
From the Z table, P (Z₁₃.₅) is therefore 0.9772 and P (Z₁₂.₅) is 0.0228.
The probability that the inflation requirement is not met is:
= 1 - (0.9772 - 0.0228)
= 0.0456
Find out more on probability at https://brainly.com/question/11902251.
please help!
x = ___ cm
Answer:
3.75 cm
Step-by-step explanation:
20 * x = 5 * 15
20x = 75
Divide both sides by 20
x = 75/20
x = 3.75
PLS HELP ME WILL GIVE BRAIN THING
Answer:
quadrant III (3)
Step-by-step explanation:
If you graph the point it is located in quadrant III
A dentist has male and female patients that range in ages from 10
years old to 50 years old and up as shown in the table. What is the
experimental probability that the next patient will be female and in
the age range 22-39? Enter your answer in simplified fraction
form.
Answer:
2/15
Step-by-step explanation:
Probability calculates the likelihood of an event occurring. The likelihood of the event occurring lies between 0 and 1. It is zero if the event does not occur and 1 if the event occurs.
For example, the probability that it would rain on Friday is between o and 1. If it rains, a value of one is attached to the event. If it doesn't a value of zero is attached to the event.
Experimental probability is based on the result of an experiment that has been carried out multiples times
experimental probability that the next patient will be female and in
the age range 22-39 = females in the age range 22-39 / total number of patients
total number of patients = 56 / 420
To transform to the simplest form. divide both the numerator and the denominator by 28
2/15
A chemist is using three types of atom to build a molecule, including carbon, oxygen, and hydrogen. He has 164 atoms. The number of carbon atoms is three times as many as oxygen atoms, and the number of hydrogen atoms is 10 more than the number of carbon atoms. How many of each type of atom do they have?
Answer: O-22, C-6, H-76
Step-by-step explanation:
Given
There are 164 atoms available
Suppose there are x oxygen atoms
So, carbon atoms are 3x
Hydrogen atoms are 3x+10
The sum of the three must be equal to 164
[tex]\Rightarrow x+3x+3x+10=164\\\Rightarrow 7x=154\\\Rightarrow x=22[/tex]
[tex]\text{Oxygen atoms}=22\\\text{Carbon atoms}=3\times 22\\\quad \quad =66\\\text{Hydrogen atoms}=66+10\\\quad \quad=76[/tex]
a business printed 175 comic books on friday each comic book had 270 pages how many pages did the business print on friday
Answer:47250
Step-by-step explanation:just multiply them
help plz zzzzzzzzzzzzzzzzzzzzzzzz
Answer:
A = -1 - √6
B = -1 + √6
Step-by-step explanation:
To find the 2 roots for the algebraic expression below we use Almighty formula
x² + 2x - 5
Formula = -b ± √b² - 4ac/2a
Where: ax²+ bx + c
a = 1, b = 2, c = -5
Hence:
-2 ± √2² - 4 × 1 × -5/2 × 1
-2 ± √4 + 20/2
-2 ± √24/2
Finding the roots
-2 ± √4 × 6/2
-2 ± 2√6/2
Hence
-2/2 ± 2√6/2
-1 ± √6
-1 - √6 , -1 + √6
Therefore the two roots are
Option A = -1 - √6 and Option B = -1 + √6
