Answers
9514 1404 393
Answer:
x = 90 degrees
Step-by-step explanation:
There are several ways to go about this (as is often the case with math problems). Here, we'll use the fact that an inscribed angle is half the measure of the arc it intercepts.
arc DE = 2×∠DFE = 60°
arc EF = 2×∠ECF = 60°
arc CF = 2×∠CEF = 60°
Then arc DEC is ...
arc DEC = arc DE +arc EF +arc FC = 60° +60° +60° = 180°
Angle DBC is half the measure of this arc, so is ...
∠DBC = 180°/2 = 90° = x
Related Questions
In Progress
What is an equation in slope-intercept form of the line that passes through the points (-2,-2) and (1,7)?
A.
y
C-
B. y = 3.0 +4
=
+
olos
O D. = 3.c – 2
Answers
Answer: y= D.3x-2
Step-by-step explanation:
Explanation:
To find the slope of two points, we need to use the formula m=rise/run or m=y2-y1/x2-x1
-2-7 -9
m = ——— = — = 3
-2-1 -3
Now we have to find “b” as in the equation “y=mx+b”
We already have our “m” which is the slope and that is equal to 3
In order to fine “b,” we have to set it up in point slope form which is the formula
“y-y1 = m(x-x1)”
You can choose to set this up with either one of the coordinates given
In this problem, the coordinates given are
(-2, -2) and (1, 7)
I’m going to use the coordinates (1, 7)
y-y1 = m(x-x1)
y-7 = 3(x-1)
The “7” is the y point
The “3” is the slope
The “1” is the x point
Now we simplify the equation:
y-7 = 3(x-1)
y-7 = 3x-3
+7 +7
—————
y = 3x + 4
Hope this helps and makes sense :)
Martin's car had 86,456 miles on it. Of that distance, Martin's wife drove 24,901 miles,
and his son drove 7,997 miles. Martin drove the rest. How many miles did Martin drive?
Show work.
Answers
Answer:
Martin drove 53,558 miles.
Step-by-step explanation:
If you add up the amount of miles his son and wife drove, you get 32,898. To get the answer, you would subtract that from the total number of miles to get 53,558.
round 427963 to the nearest thousand
Answers
Answer:
428,000
Step-by-step explanation:
427,963
If the number behind what number you're trying to round is greater than 4 then the number you're rounding goes up once while everything behind it goes to zero. If it's below 5 than the it well stay the same. Ex. Round nearest tenth--> 14--->10 instead of it going up to 20 it stays 10.
427,963
^
This number is higher than 4 so the number in front or the thousand mark goes up a number.
428,000
Someone else already answered so I figured I'll tell you how to round it, hope this helps.
That problem bc I know how to tofu it but I want to make sure
Answers
Answer:
Step-by-step explanation:
[tex]5c^{2}[/tex] +2c -3
Answer:
Here,
[tex]5c {}^{2} + 7c - 5c - 3[/tex]
Now,
[tex]5c {}^{2} \ + 2c - c[/tex]
Hence, it is the simplified form.
The value of a certain account after t years is given by
B = 600 × 1.2t dollars.
How long will it take for the value of the account to increase to $900? Round your answer to one decimal place.
t =
Answers
Answer:
1.2 years
Step-by-step explanation:
The value of a certain account after t years is given by :
B = 600 × 1.2t dollars ....(1)
We need to find how long will it take for the value of the account to increase to $900 i.e. we need to find the value of t.
Put B = $900 in equation (1).
[tex]900=600\times 1.2t\\\\t=\dfrac{900}{600\times 1.2}\\\\t=1.2\ \text{years }[/tex]
So, it will take 1.2 years of the account to increase to $900.
Find the Error A student solved the equation and determined that the solution was –2. Choose the response that shows her error and corrects it.
Multiple choice question.
A)
There is no error, her answer is correct.
B)
The initial equation simplifies to 3x = 0, which means that x = 0.
C)
The equation –2 = –2 is always true, so no value of x will make the equation true. The correct solution of the equation is that there is no solution.
D)
The equation –2 = –2 is always true, so every value of x will make the equation true. The correct solution of the equation is infinitely many solutions.
Answers
The equation –2 = –2 is always true, so no value of x will make the equation true. The correct solution of the equation is that there is no solution.
What is equation?In mathematics, an equation is a statement that shows the equality between two expressions. It contains an equals sign (=) that separates the two expressions. The expressions on both sides of the equals sign can be numbers, variables, or functions. The equation represents a relationship between the expressions that must hold true for all values of the variables involved. Solving an equation means finding the values of the variables that satisfy the equation. Equations are used in various fields, such as physics, engineering, economics, and many others, to model and solve real-world problems.
Here,
The error made by the student is assuming that -2 is the solution to the equation without actually solving it. The equation -2 = -2 is always true, which means that the equation is an identity and has no solution. So, the correct solution of the equation is that there is no solution.
To know more about equation,
https://brainly.com/question/2228446
#SPJ1
What is the simplified form of the following expression?
Answers
given f(x)=5x-11, which of the following is the value of f(4)?
Answers
Answer:
f(4) = 9
Step-by-step explanation:
You just need to substitute 4 in for x.
f(4) = 5(4) - 11
f(4) = 20 - 11
f(4) = 9
Can some one help me please
Answers
Answer:
B
Step-by-step explanation:
x+2+10 is 13 which is the beginning of the perimeter
The 7th grade basketball team has won 15 games out of the 20 games they have played this season. If they were to keep up this winning ratio, what is the probability they will win their next game?
Answers
Answer: 3/4
Step-by-step explanation:
4. Jensky is scuba diving while on vacation. Yesterday,he drove to -13.74 feet. Today,he plans to go 4 times as deep. How far is Jensky planning to dive today?
a) - 54.96 ft
b) - 17.74 ft
c) -9.74 ft
d) - 3.44 ft
Answers
I need help with solutions
Answers
Answer:
10. b 11. b 12. b 13. a 14. b 15. b 16. a 17. a 18. b 19. a 20. a 21. b
Step-by-step explanation:
I'm pretty sure they are all right
What is the least common multiple of 40 and 30
Answers
Answer:
120
Step-by-step explanation:
Please help me with this question
Answers
Answer:
5 x 3/4 < 5
2 x 4/3 > 2
6 x 5/5 = 6
4/7 x 1/8 < 4/7
2/5 x 7/7 = 2/5
1/3 x 6/4 > 1/3
URGENT PLEASE!!!!!!!!!!!!
Answers
Answer:
i got 178
Step-by-step explanation:
Answer:
its x=16 :)))
Simplify the expression 8+4b+3b+6
Answers
Answer:
14+7b
Step-by-step explanation:
8+6=14
4b+3b=7b
Answer:
14 +7b
Step-by-step explanation:
Combine like terms. Like terms have same variables
8 + 4b + 3b + 6 = 8 + 6 + 4b + 3b
= 14 + 7b
9. A cell phone can be purchased from the manufacturer for $160. The online retailer has a
standard markup of 30%, and the store has a standard markup of 40%.
(a)What is the price of the cell phone when purchased online?
(b)What is the price of the cell phone when purchased at the store?
(c) Which is the better deal?
Answers
Answer Below
30% of 160 is 48 dollars. Meaning you would take the 48 from 160. Leaving 112.So the 30% mark up would mean you would pay $112.Saving $48.
Take the 160 dollar,and have the 40% to work with. Taking this would be $64. So 160-64 is $96. They will spend $96 on the phone in-store
Purchase online- $112
Purchase in-store-$96
The better deal is in-store
Answer:
(A) $208 (B) 224 (C) the online one. it cost less
Step-by-step explanation:
(A) find 30% of $160 and add it to 160. put that answer in dollars.
(B) find 40% of $160 and add it to 160. put that answer in dollars.
(C) it is the one that costs less
^answer for me please ?
Answers
Answer:
a and b
Step-by-step explanation:
parallel lines are lines that do not intersect each other
Two pounds of grapes cost $6. How many pounds of grapes cost $1? *
Answers
Step-by-step explanation:
Answer:
1/4
Step-by-step explanation:
Tis will be your answer :D
α + 4/5 = 3
Solve for a to make the proportion true
Answers
a=11/5
i think is right
There are 351 identical plastic chips numbered 1 through 351 in a box. What is the probability of reaching into the box and randomly drawing a chip number that is smaller than 212
Answers
212/351
or
211/351
cos less than
Simplify.
3y - 4x + 6x - y
The simplified expression is???
Answers
Answer:
2y-4x+6x
=2y+2x
Step-by-step explanation:
Answer:
2x+2y
Step-by-step explanation:
Let's simplify step-by-step.
3y−4x+6x−y
=3y+−4x+6x+−y
Combine Like Terms:
=3y+−4x+6x+−y
=(−4x+6x)+(3y+−y)
=2x+2y
At Smith’s Bike Rentals, it cost $27 to rent a bike for 6 hours. How many dollars does it cost per hour of bike use
Answers
Answer:
$4.50 per hour
Step-by-step explanation:
Step 1: 27 divided by 6 is 4.50
Step 2: Double check your work by multiplying 4.50 times 6 to make sure you get 27
27/6 = 4.5
Therefore it costs $4.5 to rent the bike per hour
Helppppppppppp me i need the answer
Answers
Answer:
Step-by-step explanation:
i think its embryonic
A submarine's descent was a change in depth of -6 feet per minute. At this
rate, how much time would it take the submarine to reach a level of 750 feet
below sea level?
Answers
Please Help ASAP!! ❤️
Answers
Answer:
Step-by-step explanation:
*a is 6:55
*b is 37
*c is 15:12
Find the value of x and the measure of the angle labeled 16X".
112
64°
48°
16x
Answers
Answer:
[tex]16x = 48\:(vertically\:opposite\:angles)\\ \boxed{x = 3} \\ angle \: measure \: is \: \boxed{48°}[/tex]
A. is the right answer.Answer:
A
Step-by-step explanation:
(1/2(7x3))^3= plz help
Answers
Answer:
1/2 X 7 X 3 X 3 = 31.5
Step-by-step explanation:
(-5b^3) (-3b^6)
Solve the equation
Answers
Answer: 15b^9
Explanation:
-5*-3=15
b^3*b^6=b^9
If you know how, please explain. My brain is splitting in half trying to process this trigonometry stuff
Answers
Answer:
[tex]\huge\boxed{\text{E. } \frac{1}{2} }[/tex]
Step-by-step explanation:
When finding the cosine of an angle, we need to note what each terms mean.
Using the acronym SOH CAH TOA, we know that the
Cosine of an angle will be it's
Adjacent side divided by the
Hypotenuse.
The side adjacent to the 60° angle is 1, and the hypotenuse of the triangle is 2. Therefore, the adjacent over the hypotenuse is [tex]\frac{1}{2}[/tex], making the cos of 60°
[tex]\frac{1}{2}[/tex].
Hope this helped!
