Answers
Answer:
Step-by-step explanation:
Answer:
x = 15[tex]\sqrt{3}[/tex] , y = 15
Step-by-step explanation:
Using the sine and cosine ratios in the right triangle and the exact values
sin60° = [tex]\frac{\sqrt{3} }{2}[/tex] , cos60° = [tex]\frac{1}{2}[/tex] , then
sin60° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{x}{30}[/tex] = [tex]\frac{\sqrt{3} }{2}[/tex] ( cross- multiply )
2x = 30[tex]\sqrt{3}[/tex] ( divide both sides by 2 )
x = 15[tex]\sqrt{3}[/tex]
---------------------------------------------------------
cos60° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{y}{30}[/tex] = [tex]\frac{1}{2}[/tex] ( cross- multiply )
2y = 30 ( divide both sides by 2 )
y = 15
Related Questions
If x=(y+2)^2 and y= -7 then what is x
Answers
Answer:
X=25
Step-by-step explanation:
y+2=-7+2=5
[tex]5^{2} =25[/tex]
Can you construct a triangle that has side lengths 4 m, 5 m, and 9 m? yes no
Answers
Answer:
Yes
Step-by-step explanation:
A triangle can have any side lengths as long as they all touch to make a triangle
Answer:
yes
Step-by-step explanation:
you just had to divide then subtract
What is 4x+6<22 ? I fleet getting incorrect answers
Answers
Answer:
The answer is x < 4
Step-by-step explanation:
1) Subtract 6 from both sides.
[tex]4x < 22 - 6[/tex]
2) Simplify 22 - 6 to 16.
[tex]4x < 16[/tex]
3) Divide both sides by 4.
[tex]x < \frac{16}{4} [/tex]
4) Simplify 16/4 to 4.
[tex]x < 4[/tex]
Therefor, the answer is x < 4.
Country Financial, a financial services company, uses surveys of adults age and older to determine if personal financial fitness is changing over time (USA Today, April 4, 2012). In February of 2012, a sample of adults showed indicating that their financial security was more than fair. In February of 2010, a sample of adults showed indicating that their financial security was more than fair. a. State the hypotheses that can be used to test for a significant difference between the population proportions for the two years. - Select your answer - - Select your answer - b. What is the sample proportion indicating that their financial security was more than fair in 2012
Answers
Complete question :
Country Financial, a financial services company, uses surveys of adults age 18 and older to determine if personal financial fitness is changing over time (USA Today, April 4, 2012). In February of 2012, a sample of 1000 adults showed 410 indicating that their financial security was more than fair. In February of 2010, a sample of 900 adults showed 315 indicating that their financial security was more than fair. a. State the hypotheses that can be used to test for a significant difference between the population proportions for the two years. H : Pi - P2 - Select your answer HA : P1 P2 - Select your answer - b. What is the sample proportion indicating that their financial security was more than fair in 2012? Round your answer to two decimal places. In 2010?
Answer:
H0 : p1 - p2 = 0
H1 : p1 - p2 ≠ 0
Phat 2010 = 0.35
Phat 2012 = 0.41
Step-by-step explanation:
The null and alternative hypothesis :
H0 : p1 - p2 = 0
H1 : p1 - p2 ≠ 0
The null means there is no difference in proportion for the two years while the alternative claims that there is difference in proportion for the two years.
Sample proportion for 2010:
Phat = x / n
x = 315 ; n = 900
Phat = 315 / 900
Phat = 0.35
Sample proportion for 2012 :
Phat = x / n
x = 410 ; n = 1000
Phat = 410 / 1000
Phat = 0.41
Which expression represents the length of the spring after Gerard removes some weight? Gerard adds weight to the end of the hanging spring D-- The song stretches to a length of p centimeters. Gerard removes some weight and the song moves up by a 8 E-p) - 9 D-9--
Answers
Answer: p+(-q)
Step-by-step explanation:
Simplify the ratio 7:21.
(OLD HW!!)
(TIPS FOR ALGEBRA TO PLS ^^)
Answers
Answer:
Simplified : 1:3
Step-by-step explanation:
7:21 is equal to 1:3
Also, for algebra tips. Algebra is literally practice. There aren't too many complicated equations or anything until you get into a higher math class so practicing problems is best.
Answer:
7:21 = 1:3
Tips for algebra...
just know the basics and related rules or theorams and practice as much as u can
good day mate
PLSSS HELP IMMEDIATELY!!! ILL GIVE BRAINIEST!!! (if u provide a link, i’m not giving u brainiest!)
Answers
Answer: B. (2,1)
Step-by-step explanation:
its not c because if you look at R you see that it is going 4,3 not 3,4 because when you doing ratios on a number line it goes x-axis then y-axis next not y-axis then the x-axis.
It's not D because if you look at Q you see that it is going 3,5 not 5,3 because when you doing ratios on a number line it goes x-axis then y-axis next not y-axis then x-axis.
That's the same thing for A so your answer is b.
Answer:
B.......................
A store owner offers a discount of 20% off the regular price of all jackets. Jessica has a coupon that gives her an additional 5% off the discounted price. The original price of the jacket Jessica buys is $84. What is the price of the jacket after the discount and Jessica's coupon?
Answers
Answer:
21
Step-by-step explanation:
I haven't done this in a long time but this is what I know: the discount would overall be 25%. So, you set it up by .25(84) = 21. Therefore the jacket would cost $21.
I hope this is right and helps!
what is the slope and y intercept of the line with equation 3x-6y=7
Answers
Answer:
x intercept = (7/3, 0)
y intercept = (0, -7/6)
slope = 1/2
Step-by-step explanation:
Pls help I’m very confused (will mark brainliest)
Answers
HELP PLS
Jane needs 6 1/2 of fabric to make a dress. She has one piece of fabric that is 1 1/2 yards and another piece of fabric that is 3 1/4 yards. How many more yards of fabric does Jane need to make the dress?
Answers
convert 1 1/2 to 1 2/4
1/4 + 2/4 = 3/4
1+3=4 + 3/4 = 4 3/4
turn 6 1/2 to 6 2/4
6 2/4 - 4 3/4 = 1 3/4
In ΔLMN, l = 32 inches, m = 37 inches and n=46 inches. Find the area of ΔLMN to the nearest 10th of an square inch.
Answers
Answer:
587.9
Step-by-step explanation:
Delta math
Which choice does not represent a set of endpoints that create a horizontal line segment? A (1, 13) and (14, 13) B (-10, 0) and (-10, 1) C (3, -20) and (-11, -20) D (16, 2) and (-2, 2)
Answers
Answer:
Step-by-step explanation:
horizontal line segment: B (-10, 0) and (-10, 1)
I need help with the Pythagorean Theorem
Answers
Answer:
8.4 I think
Step-by-step explanation:
Please don't hate me if I am wrong
Solve the stimultanious equations
Answers
Answer:
x = -1 /2= -0.5 y = 15 /10= 1.5
Find the surface area of a square pyramid with side length 6 mi and slant height 7 mi.
Answers
Answer:
total surface area (TSA) = [tex]2bs[/tex] + [tex]b^{2}[/tex]
length = 6 mi
slant height = 7 mi
∴ TSA = 2 × 6 × 7 + [tex]6^{2}[/tex]
= 84 + 36
= 120
The surface area of the square pyramid is 120 sq. mi.
Given:
side length (s) = 6 mi
slant height (l) = 7 mi
*image of a typical square pyramid is shown in the attachment below.
Recall:
Formula for surface area of square pyramid (SA) = [tex]A + \frac{1}{2} Pl[/tex]
Where,
[tex]A =[/tex] area of the base = [tex]s^2 = 6^2 = 36[/tex] sq mi
[tex]P =[/tex] perimeter of the base = [tex]4(s) = 4\times 6 = 24[/tex] mi
[tex]l =[/tex] slant height = 7 mi
Plug in the values
[tex]SA = 36 + \frac{1}{2}\times 24\times 7\\SA = 36 +84\\SA = 120[/tex]
The surface area(SA) of the square pyramid is 120 sq. mi
Learn more about surface area of a square pyramid here:
https://brainly.com/question/8830629
What is the solution to the following graph? Write it as an ordered pair to get credit.
Answers
Answer:
(2,6)
Step-by-step explanation:
[tex](2 \div 2 \sqrt{2) ^{2} } [/tex]
what is the answer
Answers
Answer: 2
Convert 5.7×108 to its expanded form. sorry guys im not good with math so i need halp ^_^
Answers
The answer is 615.6.If you have more problems like this go to math-way calculator
universal pet place.
Answers
Brian owes his mom $18 if his mom agrees to give him $30 for cleaning the house how much money will he have after he pays off his debt
Answers
Answer:
Brian will have $12 dollars left.
Step-by-step explanation:
30 - 18 = 12
Witch 3 ingredients will add up to $14.40? (Only one bowl can be chosen, bowls are required)
Answers
Large bowl - $8
Beef - $2.50
Bean sprouts - $2
Boils egg - $2
Explanation
8 + 2.50 = 10.50
2+2= 4
10.50 + 4= 14.50
I'll give you the brainliest
Answers
Answer:
>
Step-by-step explanation:
sqrt{17} > sqrt{11}
Answer: >
Step-by-step explanation: the square root of 17 is going to be larger than the square root of 11. since you add 3 to both equations, that is all you have to worry about.
Without looking, sam took a colored pencil from his case, which has 1 black, 2 red, 3 blue, 2 yellow, and 1 orange pencil. What's the probability he chose a blue one?
Answers
Answer:
3/9 or 1/3
Step-by-step explanation:
I need help with this question can you guys help me
Answers
Answer:
$18.5
Step-by-step explanation:
You just add up all the costs and divide them by two and then you would get your answer
write both an explicit equation and recursive equation for the sequence 64,8,1,0,0.125..
HURRY PLEASE!!
Answers
Answer:
a(n) = n/8
Step-by-step explanation:
64/8 = 8, 8/8 = 1, 1/8 = 0.125.…
Explicit Equation: a(n) = n/8
Recursive Equation: a(1) = 64; a(n) = n/8
i dont know if this is correct or not but here you go!
SQUARE ROOT OF 21316 WITH STEP BY STEP SOLUTION THANKS
Answers
Answer:
146
Step-by-step explanation:
[tex] = \sqrt{21316 } [/tex]
[tex] = \sqrt{4 \times 5329} [/tex]
[tex] = 2 \sqrt{5329} [/tex]
[tex] = 2 \sqrt{73 \times 73} [/tex]
[tex] = 2 \times 73[/tex]
[tex] = 146[/tex]
pls help asap this is too hard helpme
Answers
It’s a= -1/2
Hope this helps!
Help . i need the answer quicckkkkkkk
Answers
Answer:
Simplifying
an = 8n + -7
Reorder the terms:
an = -7 + 8n
Solving
an = -7 + 8n
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Divide each side by 'n'.
a = -7n-1 + 8
Simplifying
a = -7n-1 + 8
Reorder the terms:
a = 8 + -7n-1
a(200) = 1607
If the answer isn’t an integer express in simplest radical form
Answers
Answer:
[tex]x = \frac{20}{ \sqrt{3} } \\ y = \frac{40}{ \sqrt{3} } [/tex]
Step-by-step explanation:
[tex]for \: \: x \\ \tan(60) = \frac{20}{x} \\ \sqrt{3} = \frac{20}{x} \\ x = \frac{20}{ \sqrt{3} } \\ \\ for \: y \: \\ \sin(60) = \frac{20}{y} \\ \frac{ \sqrt{3} }{2} = \frac{20}{y} \\ \sqrt{3} \: y = 20 \times 2 \\ y = \frac{40}{ \sqrt{3} } [/tex]
I hope that is useful for you :)