Answer:
x = 10
Step-by-step explanation:
Since the ray AE is an angle bisector, it means that it cuts the angle 50 / 50, or perfectly in half.
This means that angle BAE and angle EAC are actually congruent
∠BAE = ∠EAC
[tex]x + 30 = 3x - 10[/tex]
Get rid of x on one side. Since you are solving for x, use the more simple x
This becomes this ⇅
[tex]30 = 2x + 10[/tex]
Subtract 10 from both sides
20 = 2x
20 divided by two
2x divided by two
x = 10
Brainliest and 15 points.
Answer:
there isn't a link attached to know what you need help with
Step-by-step explanation:
Answer: exercise ur mouth by eating
Select all the fractions that are greater than 1/2.
3/5
7/13
7/15
10/7
100/200
1000/2001
Answer:
3/5
7/13
10/7
Step-by-step explanation:
all of these are greater than 1/2
f(x) = 2x² + x – 4
Find f(-10)
NEED IT FAST
Answer:
[tex]f(-10)=186[/tex]
Step-by-step explanation:
We can use substitution to find the value of [tex]f(-10)[/tex].
[tex]f(x) = 2x^2+x-4[/tex]
[tex]f(-10) = 2(-10)^2-10-4[/tex]
[tex]=200-10-4[/tex]
[tex]=186[/tex]
∴ [tex]f(-10) =186[/tex]
Hope this helps :)
Answer:
The value of f(-10) is equal to 186.
Step-by-step explanation:
We are given the function:
[tex]f(x) = 2x^2 + x - 4[/tex]
We are told to find the value of:
[tex]f(-10)[/tex]
If we pay close attention, we can see a transition between:
[tex]f(x) \rightarrow f(-10)[/tex]
We have turned x into -10, making x = -10.
Therefore, we can change the value of x in the entire function to -10.
[tex]f(-10)=2(-10)^2+(-10) - 4\\\\f(-10) = 200 - 10 - 4\\\\f(-10) = 186[/tex]
Therefore, f(-10) = 186.
DESPERATE HELP NEEDED IM ON THE LAST QUESTION BEEN CRYING I WILL GIVE BRAINLIEST✨✨✨
Answer: y -200
Step-by-step explanation:
Antonio has $350 to spend on skis. Sales tax is 6%
Answer:
Sales tax is $21 so 350+21= 371
Hope this helped :)
Step-by-step explanation:
What is 12-3x=-6x
Show the work please
Answer:
x=-3
Step-by-step explanation:
12-3x=-6x
12=-3x-6x
12= -9x
----------
-9. -9
12/9= -3
1.
The cos120" is equal to
Answer:
Value of Cos 120 is -½.
Step-by-step explanation:
PLZZZZZZ HELP ME I'M GIVING BRAINLIEST AND 14 POINTS
Which expression is equivalent to the given expression? 5x -2
A. 2-5x
b.3 – 5 + 2x
c 5x – 2x
d.2x – 2 + 3x
Answer:
D. 2x - 2 + 3x
Step-by-step explanation:
First, add 2x and 3x. Then you get 5x. Then you get the equivalent expression 5x-2.
Just help me pls and thank u
5. Mrs. Brown orders 800 grams of peaches, 200 grams of plums, and
1 kilogram of oranges. How many kilograms of fruit does Mrs. Brown order
answer
Answer:
I ain't never seen 2 pretty bestfriends
Step-by-step explanation:
What percent of 45 is 44?
Answer:
98%
Step-by-step explanation:
How many lines of symmetry does the following figure have?
In an equilateral triangle, the number of line of symmetry is three. Then the correct option is C.
What is the axes of symmetry?If a line intersect the shape and the shape look identical on both sides of line, then the line is known as axis of symmetry.
A triangle is a three-sided polygon with three angles. The angles of the triangle add up to 180 degrees.
If all the sides of the triangle are congruent, then the triangle is known as an equilateral triangle.
And each angle of the equilateral triangle is 60 degrees.
In an equilateral triangle, the number of line of symmetry is three.
And each axis of symmetry bisects the side of the triangle.
Then the correct option is C.
The diagram is shown below.
More about the axes of symmetry link is given below.
https://brainly.com/question/4348533
#SPJ5
Hurry Plsssss answer!
Determine if the equation are parallel perpendicular or neither x-y=5 and x+y=-10
Answer:
Perpendicular...They have opposite slopes
Step-by-step explanation:
evaluate
4*(1/4-3) + 12
324
290
268
144
What is the y-intercept of y=5x-3?
Answer:
(0,3) is the y intercept.
Step-by-step explanation:
Help!!! Please!!! PRE ALG FIND x
Answer:
the answer is B. I hope this helps
On day two of a study on body temperatures, 106 temperatures were taken. Suppose that we only have the first 10 temperatures to work with. The mean and standard deviation of these 10 scores were 98.44o F and 0.30o F, respectively. Construct a 95% confidence interval for the mean of all body temperatures.
Answer:
The 95% confidence interval = (98.225, 98.655)
Step-by-step explanation:
The formula for Confidence Interval =
Mean ± z × standard deviation/√n
Where Mean = 98.44°F
Standard deviation = 0.30°F
n = number of samples is 10
Because our number if samples is small, we use the t score confidence interval formula
Mean ± t × standard deviation/√n
Degrees of Freedom = n - 1
= 10 - 1 = 9
We find the t score of 95% confidence interval and degrees of freedom 9
= 2.262
Hence,
Confidence interval = 98.44 ± 2.262 × 0.30/√10
= 98.44 ± 0.214592162
Confidence Interval
98.44 - 0.214592162
= 98.225407838
≈ 98.225
98.44 + 0.214592162
= 98.654592162
≈ 98.655
The 95% confidence interval = (98.225, 98.655)
The 95% confidence interval for the mean of all body temperatures is [98.2255, 98.6545] (in degree Fahrenheit)
How to calculate confidence interval for population mean from small sample?If the sample size is given to be n < 30, then for finding the confidence interval for mean of population from this small sample, we use t-statistic.
Let the sample mean given as [tex]\overline{x}[/tex] andThe sample standard deviation s, andThe sample size = n, and The level of significance = [tex]\alpha[/tex]Then, we get the confidence interval in between the limits
[tex]\overline{x} \pm t_{\alpha/2}\times \dfrac{s}{\sqrt{n}}[/tex]
where [tex]t_{\alpha/2}[/tex] is the critical value of 't' that can be found online or from tabulated values of critical value for specific level of significance and degree of freedom = n - 1
For this case, we have:
The sample mean given as [tex]\overline{x}[/tex] = 98.44° FThe sample standard deviation s = 0.30° F, andThe sample size = n = 10, and The level of significance = [tex]\alpha[/tex] = 100% - confidence level = 100% - 95% = 5% = 0.05The degree of freedom(d.f.) is n-1 = 10-1=9
At d.f. 9, at level of significance 0.05, the critical value of t is [tex]t_{\alpha/2} = 2.262[/tex]
Thus, the limits of the confidence interval is calculated as;
[tex]\overline{x} \pm t_{\alpha/2}\times \dfrac{s}{\sqrt{n}} = 98.44 \pm 2.262 \times \dfrac{0.3}{\sqrt{10}} = 98.44 \pm 0.2145[/tex]
This shows that the confidence interval is [98.44 - 0.2145, 98.44 + 0.2145] which is [98.2255, 98.6545] (in degree Fahrenheit)
Thus, the 95% confidence interval for the mean of all body temperatures is [98.2255, 98.6545] (in degree Fahrenheit)
Learn more about confidence interval for student's t statistic here:
https://brainly.com/question/15988841
PLEASE HELP! I'm struggling on questions like this one. If you can please help on other questions but that's up to you! I will give brainliest I'm trying to get caught up on work. Here's a graph of a linear function. Write the equations that describes that function.
Answer:
y=3/2x+3
Step-by-step explanation:
the line hits the y-axis at 3 so b=3 and the change in y is up 3 and the change in x is to the right 2 so the change in y over the change in x is 3/2
Ronelle asked 100 students to choose their favorite subject from among mathematics, history, and art. She found that 22 students chose mathematics, 26 history, and the rest art. What percent of students chose art?
22%
26%
48%
52%
Help please... ::>_<::
Answer:
52
Step-by-step explanation:
21. Find x, given AD = BC =6 m.
Answer:
Draw a perpendicular line from point A to line segment BC. Name the intersection of said line at BC “E.” You now have a right angled triangle AED.
Now, you know AD = 6 m. Next, given that the trapezoid is a normal one, you know that the midpoints of AB and DC coincide. Therefore, you can find the length of DE like so, DE = (20–14)/2 = 3 m.
Next, we will use the cosign trigonometric function. We know, cos() = adjacent / hypotenuse. Hence, cosx = 3/6 = 1/2. Looking it up on a trigonometric table we know, cos(60 degrees) = 1/2. Therefore, x = 60 degrees.
Alternatively, you could simply use the Theorem for normal trapezoids that states that the base angles will be 60 degrees. Hope this helps!
(15 points)(geometry) plz plz help i need this done by tonight
Courtney bought 12 pints of orange juice. If there are 8 pints in 1 gallon, how many gallons of orange juice did she buy?
Answer:
2/4
Step-by-step explanation:
what is 14310.912 rounded two decimal places
Answer:
14310.91
Step-by-step explanation:
look at the second decimal which is one. then look at the number to the right and see if its 0-4 or 5-9. in this case its a 2 so it is in the first category
so you will keep the number the same and get rid of the remaining numbers
hope i explain alright :)
Which system of equations can be graphed to find the solution(s) to 2-9x =
<=Ž - 12
Answer:
a
Step-by-step explanation:
edge 2021
Pls I need help !!!!!
Answer:
a=8
Step-by-step explanation:
We know that the right triangle has a total angle of 90.
We already have 50 witch means 40 is missing.
The equation given is:
6a-8 but we will upgrade it by the information we have so now it’s 6a-8=40
One of the multiples of 6 is, 6x8=48
Remember that 8 will be taken off.
Solve:
48-8=40 (witch is what we where looking for)
This is further proof that a=8
I have no idea what the answer is
Um....help?????????????????
Answer:
y/9x
Step-by-step explanation:
[tex]\frac{3*x*y^{5} }{27*x^{2} *y^{4} } =\frac{3*x*y*y^{4} }{3*9*x*x *y^{4} }[/tex] symplify
[tex]\frac{y }{9*x }[/tex]
Please please help me please please :( asap
Answer:
You would need 32 cups of flour.
Step-by-step explanation:
If every 2 teaspoons of salt calls for 4 cups of flour, and there are 16 teaspoons of salt, we can divide 16 by the unit rate (2) and get 8; we then multiply 8 by 4 to reach 32.
Hope this helps!
Answer:
32
Step-by-step explanation:
16/2 = 8
8x4 = 32
How many solutions does the equation y=3x+2 have? *
Answer:
sadasdsdfliygsadluhgasda
Step-by-step explanation:
asdasdasdasdas
sdasdaskudygasligdliausgldiuhgal;siughdliasd
I think it have 3 solution
Select the correct answer from each drop-down menu.
The expression
means the product of 5 and the difference of three times r minus 10. If r= 4, the value of the expression
is
Reset
Next
Answer:
The expression [tex]5(3r-10)[/tex] means the product of 5 and the difference of three times r minus 10. If r= 4, the value of the expression is [tex]10[/tex] .
Step-by-step explanation:
The product of 5 and the difference of three times r minus 10 would look like this:
[tex]5(3r-10)[/tex]
If you substitute 4 for [tex]r[/tex], you get
[tex]5[3(4)-10][/tex]
Multiply 3 and 4
[tex]5(12-10)\\[/tex]
Subtract
[tex]5(2)\\[/tex]
Multiply
[tex]10[/tex]
Find the interest on the loan if you borrowed $5000 at 5% interest for 1 year
Answer:
$28.50
Step-by-step explanation: