Answers
Answer:
Step-by-step explanation:
By applying sine rule in the given triangle,
cos(25°) = [tex]\frac{\text{AC}}{AB}[/tex]
cos(25°) = [tex]\frac{b}{400}[/tex]
b = 400[cos(25°)]
b = 362.52
b = 363 ft
By applying sine rule in the given triangle,
sin(25°) = [tex]\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]
sin(25°) = [tex]\frac{a}{400}[/tex]
a = 400[sin(25°)]
a = 169.05
a = 169 ft
m∠A + m∠B + m∠C = 180°
25° + m∠B + 90° = 180°
m∠B = 180° - 115°
m∠B = 65°
Related Questions
Test the claim that the mean GPA of night students is significantly different than the mean GPA of day students at the 0.02 significance level.
GPA-Night GPA-Day 3.15 3.47 3.68 3.49 3.34 3.07 3.07 3.31 3.31 3.28 3.2 3.05 3.07 3.12 2.8 3.5 3.04 3.04 3.13 3.19 3.54 3.26 3.24 3.31 3.02 3.45 3.44 2.9 2.79 2.76 3.18 2.69 2.99 3.46 3.28 3.09 3.16 2.72 3.08 3.14 2.47 3.08 3.03 2.99 3.02 3.11 2.58 2.84 3.36 2.99 3.04 2.99
(1) The null and alternative hypothesis would be:
a.H0:μN≥μD
H1:μN>μD.
b.H0:μN=μD
H1:μN≠μD.
c.H0:pN≥pD
H1:pN
d.H0:pN=pD
H1:pN≠pD.
e.H0:μN≤μD
H1:μN<μD
f.H0:pN≤pD
H1:pN>pD.
(2) The test is:_______.
a. right-tailed.
b. two-tailed.
c. left-tailed.
(3) The sample consisted of 70 night students, with a sample mean GPA of 2.12 and a standard deviation of 0.08, and 70 day students, with a sample mean GPA of 2.08 and a standard deviation of 0.02
Answers
Answer:
Step-by-step explanation:
Test the claim that the mean GPA of night students is significantly different than the mean GPA of day students at the 0.02 significance level.
GPA-Night GPA-Day 3.15 3.47 3.68 3.49 3.34 3.07 3.07 3.31 3.31 3.28 3.2 3.05 3.07 3.12 2.8 3.5 3.04 3.04 3.13 3.19 3.54 3.26 3.24 3.31 3.02 3.45 3.44 2.9 2.79 2.76 3.18 2.69 2.99 3.46 3.28 3.09 3.16 2.72 3.08 3.14 2.47 3.08 3.03 2.99 3.02 3.11 2.58 2.84 3.36 2.99 3.04 2.99
(1) The null and alternative hypothesis would be:
a.H0:μN≥μD
H1:μN>μD.
b.H0:μN=μD
H1:μN≠μD.
c.H0:pN≥pD
H1:pN d.H0:pN=pD
H1:pN≠pD.
e.H0:μN≤μD
H1:μN<μD
f.H0:pN≤pD
H1:pN>pD.
(2) The test is:_______.
a. right-tailed.
b. two-tailed.
c. left-tailed.
(3) The sample consisted of 70 night students, with a sample mean GPA of 2.12 and a standard deviation of 0.08, and 70 day students, with a sample mean GPA of 2.08 and a standard deviation of 0.02
If the graph of the second equation in the system passes through the points (-12, 20) and
(4, 12), which statement is true?
Answers
answer: the system had no solution
PLEASE ITS URGENT I NEED HELP ..
PLEEEAASEEE !!!
I BEG YOU GUYS ...
Thanks for the help...
i actually put the answer AT RANDOM so pay no attention to it
Answers
Answer:
the answer is 3 x 10^6
Step-by-step explanation:
Which is a true statement about angles 1 and 2? O the two angles are supplementary
the two angles are complementary
the two angles are neither complementary nor supplementary
the two angles are vertical angles
Answers
Thank you hope this helps
Which of the following statements are true? (Select all that apply)
Correlation coefficients are negative when the relationship is weak and positive when they are strong.
Correlation coefficients show the relationship of the x and y values.
Correlation coefficients can be any value less than 1 or greater than −1.
Correlation coefficients show the x and y intercepts of the best fit line.
Correlation coefficients can be represented by the variable r.
Answers
Answer:
a and c I'm 99percent shure
The table below shows the favorite color of all the students at Wolff Elementary school.
Answers
Answer:
Pretty shure its the one at the bottom (C)
Step-by-step explanation:
the other ones have very limited amount of people they can show on the graph, so it makes sience to pick the biggest one because it will fluxuate.
(basically its C, also not always right )
96 pencils come in a box. If 4 teachers share 3 boxes equally, how many pencils does each teacher receive-
Answers
Answer:
96 X 3 = 288
288/4 is 72
72 is the answer
Step-by-step explanation:
hope you have a great day
work out m and c for the line y= 2x+1
Answers
Answer:
m = 2, c = 1
Explanation: In the y = mx + b (or y = mx + c) format, the m is the slope of the line and the c/b is the y-intercept, or where the line crosses the y-axis. If we substitute the information from the given equation, y = 2x + 1, into the general formula, we know that the m is 2 and c is 1.
SOME ONE HELP PLEASE
Answers
Answer:
1 23/32
Step-by-step explanation:
hi, dont sweat it! i gotchu.
Solve for x Enter the solutions from least to greatest . (x - 4)(- 5x + 1) = 0 lesser x = greater x =
Answers
Answer:
dont know maybe someone else can help u
:€
Answer:
lesser x=1/5
greater x =4
Step-by-step explanation:
Please refer to the attachment
can someone help find me? i need to answer!!!!
Answers
The total cost of an electronic photo
display comes to $100. The price
y plus the tax of $6 equals $100.
Write an equation to find the price
of the electronic photo display.
Answers
Answer:
P = y * 1.06
Step-by-step explanation:
Let y be the net price (no tax), t the tax (as a factor) and P the total price (tax included),
P = y * t
From the info provided, we know that for each 100 USD, 6 USD is tax, so 6%,
TIP: By multiplying by 1.06 we add the 6% to the net price (6% is 0.06)
P = y * 1.06
A frustum of height 4 is part of a larger pyramid of height 6. What is the ratio of the volume of the frustum to the volume of the pyramid?
Answers
Answer:
26 : 27Step-by-step explanation:
The volume of the pyramid with height of 6:
V = 1/3bh = 1/3b*6 = 2b,b is area of the baseThe volume of the smaller pyramid is:
V₁ = 1/3*b₁h₁We know:
h₁ = 6 - 4 = 2h₁/h = 2/6 = 1/3The base sides have same ratio as similar triangles.
b₁ = (1/3)²b= b/9The volume of smaller pyramid:
V₁ = 1/3*2*b/9 = 2b/27The difference of the volumes is the volume of the frustum:
V₂ = V - V₁V₂ = 2b - 2b/27 = 52b/27The ratio of V₂ to V is:
52b/27 ÷ 2b = 26/27Dima’s mom went to the bakery and bought 18 donuts. 1/2 of the donuts were chocolate. Dima‛s family ate 1/3 of the chocolate donuts but didn‛t eat any other kind. What fraction of the donuts did they eat?
Answers
Answer:
They ate 1/6 of the donuts
Step-by-step explanation:
They bought 18 donuts. 1/2 of 18 is 9. 1/3 of 9 is 3. To find the fraction, divide 3 by 18. Simplify the fraction. You are left with 1/6.
HELP PLSSSSSSSSSSSSS Carin is going to paint walls of her room green. The green paint is too dark so she mixes it with white paint. She tries different mixtures. Which of the following will give the darkest green color?
A. 1 part green + 3 parts white
B. 2 parts green + 6 parts white
C. 3 parts green + 9 parts white
D. 4 parts green + 12 parts white
E. They will all be equally dark.
Answers
10
TIME REMAINING
50:51
What are the solutions of x squared + 6 x minus 6 = 10?
Answers
Answer:
X = -8 and X = 2
Step-by-step explanation:
X^2 + 6X - 6 = 10
Bring the 10 over:
X^2 + 6x - 16 = 0
From here, either use the quadratic formula or
manual factorization by finding its roots:
Manually:
(X + 8)(X - 2) = 0
Equate each factor to 0 you will get:
X + 8 = 0 and X - 2 = 0
Solutions are -8 and 2 respectively.
What is the area of a rectangle that is 6 inches long by 1/12 inch wide?
Answers
A = (6)(1/12)
A = 1/2
For what value of m is the expression x4+mx2+64 a perfect square?
Answers
Answer:
x^4 + 1/4 x^2 + 1/64 is a perfect square. 16x^4 + 4x^2 + 1/4 is a perfect square. (4x^2 + 1/2)^2. So you must add -3/4
Step-by-step explanation:
The value of m is the expression x⁴ + mx² + 64 a perfect square will be 16.
What is a perfect square trinomial?A perfect square trinomial formulation can be created by taking the binomial equation's squared. If and then only if a trinomial satisfying the criterion b² = 4ac has the form ax² + bx + c, it is indeed a perfect square.
The equation is given below.
⇒ x⁴ + mx² + 64
Then the value of a, b, and c will be 1, m, and 64, respectively. Then the equation will be given as,
b² = 4ac
m² = 4 x 1 x 64
m² = 265
m² = 16²
m = 16
The value of m is the expression x⁴ + mx² + 64 a perfect square will be 16.
More about the perfect square trinomial link is given below.
https://brainly.com/question/16615974
#SPJ2
SOMEONE PLEASE HELP IM STUCK AND ITS MY LAST QUESTION
Answers
Answer:
Theta=60
Step-by-step explanation:
Lets start to get the value of x in [tex]sin(x)=\frac{1}{2}[/tex]
Just do the opposite which is [tex]sin^{-1}(\frac{1}{2}) = 30[/tex]
So [tex]sin(30)=\frac{1}{2}[/tex]
Still we got only the value of x not theta then
The value of x = theta/2
Theta/2=30 multiply each side by 2
Theta = 60
How many integers satisfy each inequality?
-102
Answers
Answer:At integers -2 and -3 the value of the equation is zero, hence satisfies the inequality. So overall 4 integers satisfy the inequality.
i got 1 2 3 4 5 6 7 8 ems in my bank account
Step-by-step explanation:
Use distributive property to write the expression in standard form 7 (4x - 5y - 2) Use the distributive property and collect like terms to create an equivalent expression 4x - 3 (x - 2y ) + (1/2) (6x - 8y)
Answers
resultado:
-2X+12Y
Step-by-step explanation:
28X-35Y-14
8X-6X+12Y+12X-16X
-2X+12Y
the percent change from 50 to 43
Answers
Answer:
its not 7% btw
Step-by-step explanation:
If you are saving 60% which is $54, what will the sale price of the Printer be?
A $60
B $54
C $36
D $90
Answers
Answer:
the answer should be D.$90
Step-by-step explanation:
54 x .6 = 90
I will give out 40 points for the four answers but if you just take the points and don't answer properly I will report you
Answers
Answer:
A:-3<x<13
B:-3=<x=<13
C:-3=<x<13
D:-3<x=<13
Step-by-step explanation:
Ok, first lets do A
-3 and -13 and the endpoints and the dots are hollow so its not including
therefore the answer is -3<x<13
next, B
same endpoint this time but both dots are filled in so they are included
therefore: -3=<x=<13
(I'm typing on a keyboard!!! i can't do the fancy symbols lol)
C
same endpoints again but -3 is black and 13 is not
so: -3=<x<13
D
I think you have got the hang of it now probaly
-3 is not filled and 13 is
answer is -3<x=<13
Hope this helps :)
For each geometric sequence, write a recursive rupe by finding the common ratio by calculating the ratio of consecutive terms. Write an explicit rule for the sequence by writing each term as the product of the first term and a power of the common ratio.
Answers
Answer:
3
Step-by-step explanation:
NEED HELP ASAP!!!!!!!!!
Answers
Answer:
i dont get it.....................................................................
Step-by-step explanation:
A plate is considered a major plate if it covers an area of more than _____________ kilometres.
A. 200,000,000 km2
B. 40,000,000 km2
C. 2,000 km2
D. 20,000,000 km2
Answers
Answer:
i think is B
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
help .........thanks
Answers
b= -5
a= -4
-5+4(-4)=
-5-16= -21
2.) xz-z
x= -2
z= -5
(-2)•(-5) -(-5)=
10+5=15
Solve for x using cross multiplication 3x - 3 5 = 2x – 2 4 x = [?]
Answers
Answer:
x = -35/22, or 1.5909090...
Step-by-step explanation:
Solving for x will be easy enough, but cross multiplication won't be necessary as that's only applicable when division is involved:
35 = 2x - 24x
35 = -22x
x = -35/22, or 1.5909090...
Choose two statements that are true for this expression.
6x^3-8x^2-40/y+21
A. The entire expression
B. There are three terms
C. There are four terms
D. The term -40/y is a ratio
Answers
Answer:
C and D
Step-by-step explanation:
A P E X verified