PLEASE HELP. I will mark branliest
Answer:
28
Step-by-step explanation:
find the value of tan30+cot30+sin60
Hello!
This is a problem about relating values of the Unit Circle.
First, we need to figure out the specific "points" of each angle measure of 30 and 60.
For the angle measure 30, the point will be [tex](\frac{\sqrt{3}}{2},\frac{1}{2})[/tex].
For the angle measure 60, the point will be [tex](\frac{1}{2},\frac{\sqrt{3}}{2})[/tex].
The tangent value of a point will be its [tex]y[/tex] value over its [tex]x[/tex] value.
[tex]\frac{\frac{1}{2}}{\frac{\sqrt{3}}{2}}=\frac{1}{2}*\frac{2}{\sqrt{3}}=\frac{1}{\sqrt{3}}=\frac{\sqrt{3}}{3}[/tex]
The cotangent value of a point will be the reciprocal of the tangent value, which we found previously.
[tex]\frac{3}{\sqrt{3}}=\frac{3\sqrt{3}}{3}=\sqrt{3}[/tex]
The sine value of a point will be the [tex]y[/tex] value of the point.
[tex]\frac{\sqrt{3}}{2}[/tex]
So the values we have so far are [tex]\frac{\sqrt{3}}{3}+\sqrt{3}+\frac{\sqrt{3}}{2}[/tex]
Now we have to find the LCD to add these together, which in this case would be 6.
[tex]\frac{2\sqrt{3}}{6}+\frac{6\sqrt{3}}{6}+\frac{3\sqrt{3}}{6}[/tex]
Which adds up to [tex]\frac{11\sqrt{3}}{6}[/tex], which is in simplest radical form.
Hope this helps!
For which of the inequalities below is v = 4 a solution?
A v + 5 ≥ 9 B v + 5 ≤ 8
C v + 5 < 8 D v + 5 > 9
Step-by-step explanation:
You can use this app is call symbols and it's completely free.
Hope this helps
According to the US Census, the percent of residents aged 65 or older in the 50
states and District of Columbia has mean 13.26% and standard deviation of
1.67%. Find and interpret the standardized scoreſfor the state of Colorado, which
had 9.7% of residents age 65 or older. *
Answer:
z = -2.13
Therefore, the standardized z score for the state of Colorado means the score is below the mean.
Step-by-step explanation:
The formula for z score is given as:
z = (x-μ)/σ,
where
x is the raw score = 9.7%
μ is the population mean = 13.26%
σ is the population standard deviation = 1.67%
z = z score or standardize score
Hence,
z = 9.7 - 13.26/1.67
z = -2.13174
Approximately z = -2.13
Therefore, the standardized z score for the state of Colorado means the score is below the mean
The perimeter of a square is given as 8x+20 expression
Answer:
wow that hard even i dont know how to do that
Step-by-step explanation:
sorry
Use the figure to find the measures of the numbered angles.
1 = 61° because it is a corresponding angle to angle 6
2 = 119° because it is an alternate exterior angle to angle 7
3 = 61° because it is an alternate angle to angle 1
4 = 119° because it is an alternate angle to angle 2
5 = 119° because it is an alternate angle to angle 7
6 = 61° because is is an alternate angle to 61°
7 = 119° because it and 61° are supplementary angles (total 180° together)
Answer:
1 = 61° because it is a corresponding angle to angle 6
2 = 119° because it is an alternate exterior angle to angle 7
3 = 61° because it is an alternate angle to angle 1
4 = 119° because it is an alternate angle to angle 2
5 = 119° because it is an alternate angle to angle 7
6 = 61° because is is an alternate angle to 61°
7 = 119° because it and 61° are supplementary angles (total 180° together)
Step-by-step explanation:
3z+4 z=5 help please?
Answer:
z=19
Step-by-step explanation:
3(5)=15
15+4=19
Mark me Brainliest?
Answer: z = 5/7
Step-by-step explanation:
A block is pulled 0.9 m to the right in 2.5 seconds. What is the blocks average speed?
Answer:
Step-by-step explanation:
speed=distance /time=0.9/2.5=90/25=3.6 m/s
What is the length of the outside of a circle called
Answer:
The distance around a circle on the other hand is called the circumference (c).
Step-by-step explanation:
A straight line that passes from one side of a circle to the other through the center is called the diameter. The distance around the outside of a circle is called the circumference. All points on the edge of a circle are the same distance to the center.
The length of the outside of a circle is called the "circumference."
The circumference is the total distance around the outer boundary of the circle.
The distance cover while completing one full lap around the track is equivalent to the circumference of the circle.
The formula to calculate the circumference (C) of a circle is:
C = πd
where π (pi) is a mathematical constant equal to 3.14159, and d represents the diameter of the circle.
The formula for circumference in terms of the radius is:
C = 2πr
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first one that gets it correctly gets branlyest
Answer:
200 in2
Step-by-step explanation:
diameter= 15 in. so raduis = 15/2
area of circle = πr2
= 22/7 * 15/2 *15/2
= 176.79
rounding to the nearest 100, its 200 in2
"They kept on talking and kept on ooohing and aahing and Grandma Sands kept on interrupting breakfast..." is an example of... *
personification
allusion
metaphor
onomatopoeia
Answer:
onomatopoeia
Step-by-step explanation Onomatopia is when the author uses sounds in their writing. In this case ooohing and ahhing were the sounds.
The conversion of stored potential energy into kinetic energy can also be harnessed to power homes, factories and entire cities. Which example from the text supports this conclusion?
A the softball pitcher
B the slingshotting comet
C the archer
D the Hoover Dam
NO BOTS or SCAM PLS
If tan 0=5/12 and sin 0>0, then cos 0=?
A -5/13
B 12/13
C 13/12
D -12/13
Answer:
B. 12/13
Step-by-step explanation:
Hypotenuse= [tex]\sqrt{(5)^{2}+12^{2} } \\[/tex]
hypotenuse=13
opposite= 5
adjacent= 12
Cosine= adjacent/hypotenuse
cosine= 12/13
Find the area of a small piece of land 23m wide and 34m long
A
a.782m
b.114m
c.782m2
d.114m2
Answer:
Its C
Step-by-step explanation:
23 times 34 is 782 and since its a square you add the 2
help me out thank you so much whoever does!!
Answer:
oh wait i got it! those are oppisite from eachother so theyre angle is the same. the answer would be 59°
Answer:
b=59º
Step-by-step explanation:
Vertical angle theorem states that if angles are vertical, they are congruent.
in triangle ABC shown, DE || AC. What is the length of AC?
Answer:
AC = 20
Step-by-step explanation:
Δ BDE and Δ BAC are similar, so the ratios of corresponding sides are equal, that is
[tex]\frac{AC}{DE}[/tex] = [tex]\frac{BA}{BD}[/tex] , substitute values
[tex]\frac{AC}{8}[/tex] = [tex]\frac{10}{4}[/tex] ( cross- multiply )
4AC = 80 ( divide both sides by 4 )
AC = 20
In the triangle ABC if DE is parallel to AC then the length of AC is 12 units.
What is Triangle?A triangle is a three-sided polygon that consists of three edges and three vertices.
Given that the triangles ABC and BDE are similar triangles.
Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion .
Let us form a proportional equation by comparing the proportional sides.
AC/DE=AD/BD
AC/8= 6/4
Apply cross multiplication
AC=48/4
Divide numerator and denominator by 4.
AC=12
Hence, in the triangle ABC if DE is parallel to AC then the length of AC is 12 units.
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5/8 - 2/9 × 3/8 fraction simplify quick please
We had a revision and I forgot can you help me
Answer:
ans is 13/25
Step-by-step explanation:
hope it helps!!!
help solve pls””/“/“/“
Answer:
[tex]p(11)=626[/tex]
Step-by-step explanation:
Substitute the value (p(11)) into the function and evaluate by solving. Do not forget to follow the order of operations. The order of operations is the steps one must do operations in an equation in order to get a valid result, they are the following,
1. Parenthesis
2.Exponent/Radicals
3.Multiplication/Division
4.Addition/Subtraction
[tex]p(x)=5(x^2+1)+16[/tex]
Substitute,
[tex]p(11)=5((11)^2+1)+16[/tex]
Simplify,
[tex]p(11)=5(121+1)+16[/tex]
[tex]p(11)=5(122)+16[/tex]
[tex]p(11)=610+16[/tex]
[tex]p(11)=626[/tex]
anything helps this is the last one
Answer:
i am pretty sure it's a.
Step-by-step explanation:
i hope this helps :)
Answer:
it's -2sqrt7
the first answer
Step-by-step explanation:
pls mark me brainliest!
find the missing number so that the equation has infinitely many solution
2x + __= -4( x - 2) +6x
Answer:
8
Step-by-step explanation:
-4x+8+2x
2x+8
compare both sides
2x+__= 2x+8
it is 8
7. James earned $13 on Monday and doubled his pay each day thereafter for a week. How
much did he earn on Saturday?
Answer:
416$
Step-by-step explanation:
When calculating the area of a trapezoid, how do you determine which sides are the bases?
Here is a video to help you with your question:
https://youtu.be/WaeD3qKc7Jc
Please help solve correctly. NO links or files. Correct answers only if not report. I will even give an additional 10 if correct.
Answer:
Im not sure if you have to provide an exact or estimated answer so here's both:
314.16 cm3 or 100pi
Answer:
100π
Step-by-step explanation:
[tex]V=\frac{pi r^{2} h}{3} \\ =\frac{pi*5^{2}*12 }{3} \\ =pi*5^{2} *4\\ =pi*25*4\\ =pi*100[/tex]
Sorry I had to write pi instead of π in the equation
Can anyone figure this out? NO LINKS OR FILES
Answer:
a) growing
b) 5% per year
c) $11819.64
somebody answer i need Help
Answer:
$5.00
Step-by-step explanation:
$5 because it occurs the most
Answer:
$5
Step-by-step explanation:
The mode is the price that appears the most often in a given list.
Graph the equation y=-x^2-12x-35y=−x 2−12x−35 on the accompanying set of axes. You must plot 5 points including the roots and the vertex.
please help and explain I'm very confused and I have no idea what to do.
The graph of y=-x^2-12x-35 is attached and it has x intercepts at x=-7 and x=-5 and vertex is at (6, -107).
What is quadratic equation?A quadratic equation is a second-order polynomial equation in a single variable x , ax²+bx+c=0. with a ≠ 0 .
To graph the equation y=-x^2-12x-35, we can start by finding the x-intercepts (or roots) and the vertex of the parabola.
To find the x-intercepts, we can set y=0 and solve for x:
0 = -x² - 12x - 35
Using the quadratic formula, we get:
x=-b±√b²-4ac/2a
x=12±√144-140/2(-1)
x=12±√144-140/(-2)
x=12±2/(-2)
The x-intercepts are approximately x=-7 and x=-5
To find the vertex, we can use the formula x=-b/2a to get the x-coordinate, and then substitute it into the equation to get the y-coordinate:
x = -b / 2a = -(-12) / 2(-1) = 6
y = -x² - 12x - 35 = -(6)^2 - 12(6) - 35 = -107
So the vertex is at (6, -107).
Hence, the graph of y=-x^2-12x-35 is attached and it has x intercepts at x=-7 and x=-5 and vertex is at (6, -107).
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which answer is the simplest form of the expression.
Answer:
yellow box
Step-by-step explanation:
Answer:
c or the orange option. m^2n/2
Step-by-step explanation:
i hope this helps :)
Please help, this question makes no sense
Answer:
5.4 units
Step-by-step explanation:
The diagonal AC has length
|AC| = √(2² + 5²) = √29 ≈ 5.4 units.
The horizontal distance from A to C is 2 units; the vertical distance is 5 units. That's where the 2² and 5² come from.
Can someone please help me :) ❗❗❗❗❗
Answer:
the third option
Step-by-step explanation:
when X is negative f(x) is positive. and when f(x) is negative x is positive
PLEASE ANSWER THESE! I WILL GIVE BRAINLIEST!! YOU NEED TO Solve each equation. Find the missing number by step by step!
Answer:
Where is the image to the equations?
Step-by-step explanation:
Answer:
there's no picture???
Step-by-step explanation: