In each problem, angle C is a right angle. Solve each triangle rounding answers to the nearest
tenth.
a= 7.7 ft, b= 16 ft
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Answer:
c = 17.8, A = 25.7°, B = 64.3°
Step-by-step explanation:
Side c can be found from the Pythagorean theorem:
c = √(a² +b²)
c = √(7.7² +16²) = √315.29
c ≈ 17.8 . . . feet
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The tangent relation is ...
Tan = Opposite/Adjacent
tan(A) = a/b = 7.7/16
A = arctan(7.7/16)
A ≈ 25.7°
B = 90° -25.7°
B = 64.3°
It costs $1.08 to buy 3 green marbles. If the marbles all have the same price, how much
does it cost to buy 1 marble?
Answer:
0.36$
Step-by-step explanation:
1.03/ 3 marbles = 0.36$ per marble.
one marble is 36 cents
1.08÷3=36
Roberto is 3 years older than Carolyn. In 7 years the sum of their ages will be 81. How old is Roberto now?
Answer: 35
the age of Roberto is x (x > 3)(x ∈ N)
because Roberto is 3 years older than Carolyn => the age of Carolyn is x - 3
in 7 years, the age of Roberto is x + 7; the age of Carolyn is x - 3 + 7 = x + 4
because In 7 years the sum of their ages will be 81 =>
x + 7 + x + 4 = 81
⇔ 2x + 11 = 81
⇔ 2x = 70
⇔ x = 70/2 = 35
=> the age of Roberto is 35
Step-by-step explanation:
Is (8,2). (7,2). (6,3) a function?
a metal washer has a mass of 0.27 G and a volume of 0.1 CM3 what is its density
Answer:
density equals mass over volume
D=.27G/ .1CM3
Step-by-step explanation:
hope this helps
If you can walk 3.7 miles in 1.2 hours, how many minutes does it take to walk 3.37 miles? Round to 1 decimal.
Answer:
I think 35 min
Step-by-step explanation:
Which point represents 3.9?
Answer:
What do you mean there is not a graph...do you have a picture?
Step-by-step explanation:
Answer: B
Step-by-step explanation:
A = 3.8
B = 3.9
C = 4.0
D = 4.2
You take 4.5 - 3,6 = 0.9, so each big line should be .3.
A marching has 4 rows of trumpets with 10 trumpets in each row. How many trumpets are in the marching band. Use distributive property to solve.
Answer:
4x10=40 10
Step-by-step explanation:
10 people in each row. 4 rows of people. 10+10+10+10
The original price was $20, the sales price is $15. Is this an increase or decrease? What was the percent change?
Answer: Decrease by 30%
Step-by-step explanation:
HELP PLS FOR 10 POINTS AND BRAINLIEST TO CORRECT ANSWER The cost, C, to ride in a taxi can be calculated using the function shown, where m is the number of miles.
C = 2.25 +0.85m
What is the cost per mile to ride in the taxi?
A. $0.85
B. $1.40
C. $2.25
D. $3.10
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Answer:
A. $0.85
Step-by-step explanation:
Each time m increases by 1, the cost goes up by $0.85.
The cost per mile is $0.85.
Please assist with the geometry questions part 1
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Answer:
1. sin(x) = a/c; cos(x) = b/c; tan(x) = a/b
2, 3 see below
Step-by-step explanation:
1. The mnemonic SOH CAH TOA reminds you of the relationships between trig functions and sides of a right triangle:
Sin = Opposite/Hypotenuse ⇒ sin(x) = a/c
Cos = Adjacent/Hypotenuse ⇒ cos(x) = b/c
Tan = Opposite/Adjacent ⇒ tan(x) = a/b
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2. The attachment shows the two special right triangles. The 30-60-90 right triangle has sides in the ratio 1 : √3 : 2. The 45-45-90 isosceles right triangle has sides in the ratio 1 : 1 : √2.
These ratios can be used to write proportions that help you find the length of a missing side.
Example:
Suppose the triangle in problem 1 has x = 30°, and a = 10. Then we could find the length of missing side 'c' using a proportion involving the short side and the long side (hypotenuse).
2/1 = c/10 ⇒ c = 20
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3. In a right triangle, the acute angles are complementary. The side adjacent to one acute angle is the side opposite the other. So the sine of one of the angles is the cosine of the other, and vice versa. This means the sine of an angle is the cosine of its complement, and vice versa.
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Comment on question 3
The wording of this question is a little strange. Sine and cosine are not complementary. Rather, the angles for which those functions have the same value are complementary.
Math please help I don’t understand at all
Answer:
the x and y axis arent clear enough to tell their coordinations can you take the picture again but it has to be clear
is y=-7/9x+2 proportional or non proportional
Would someone mind helping me? I really need this answer but I'm so confused. I would appreciate any help :) and if you get the answer right, ill give you brainliest.
Answer:
A. the slope is -2
the y-intercept is (0,1)
Step-by-step explanation:
If y=mx+b, m is the slope and b is the y-intercept.
If we replace the variables with y=-2x+1, we can see -2 is the slope and the y-intercept is (0,1).
HELLLLPPPP MMEEEEEEEEEEEEEEE AHHHHHHH
#3 An art-supply store sells a pad of watercolor paper after a 78% markup. If the store sells the paper for $46.99, what is the wholesale price? *
I messed up so how do I erase my answer omg sorry ....
evaluate 9.5v + 8.9w when v=6 and w=7
Answer:119.3
Step-by-step explanation:
9.5*6=57
8.9*7=62.3
57+62.3=119.3
please answer this question GIVING BRAINLIEST!!
Answer:
b
attention:
please i saw in this picture that you wrote for the question 10 that I solved before number -5
and the answer i got was 5 not -5 hope I am talking about the question I answered before.
I’m dumb so can u pls help me
Answer:
(1, 6)
(2, 12)
(1.5, 9)
(2.5, 15)
#teamtrees #WAP (Water And Plant)
0.000032 ÷ (8 × 10-3)
4x10^-3
Answer:
Step-by-step explanation:
=0.000002x10−3
symbolab the calculator will help you with the steps and answer
The statement of cash flows is an optional financial statement.
True
Or False
Answer:
The statement of cash flows is an optional financial statement. The statement of cash flows shows the effects on cash of a company's operating, investing, and financing activities. The statement of cash flows reports a firm's major sources of cash receipts and major uses of cash payments for a period.
Mr. Roberts had $9,512 in savings. He saved another $488. He then used all his money to buy 500 books. He sold the books for $35 each. How much did Mr. Roberts earn from selling each book? a. Mr. Roberts earned $ from selling each book. b. Travis got $20 as the answer or the amount Mr. Roberts earned from selling each book. Is his answer correct? yes no c. Tell why Travis is or is not correct.
Answer:
a. Profit from each book = $15
b. No, Travis was wrong.
c. Travis isn't correct because Mr. Roberts made $15 from the sales of each book.
Step-by-step explanation:
Given the following data;
Number of books bought = 500
Selling price = $35
Robert savings (cost price) = $9,512 + $488
Robert savings (cost price) = $10,000
Purchasing price = $10,000/500 = $20
Revenues from book sold = 500 * 35 = $17,500
Total profit = Revenues - Cost price
Total profit = $17,500 - $10,000
Total profit = $7,500
To find the amount earned from each book;
[tex] Profit \; from \; each \; book = \frac {Total \;profit}{Numbers \; of \; book} [/tex]
Substituting into the equation, we have;
[tex] Profit \; from \; each \; book = \frac {7500}{500} [/tex]
Profit from each book = $15
Therefore, Mr. Roberts earned $15 from selling each book.
Check:
Selling price = purchasing price + profit = $20 + $15 = $35
the difference between twice a number and a number that is 5 more than it is 3. What is the number?
Answer:
4?
Step-by-step explanation:
Answer:
2n-(n+5)=3
Step-by-step explanation:
)Kelly read 30 pages of her 300-page book in 6 hours. At this rate, how long will it take her to read the entire book? 60 hours 5 hours 6 hours 30 hours
Answer:
What would you want the answer in?
Step-by-step explanation:
Answer:
60 hours
Step-by-step explanation:
That is really slow reading
100%
?
What percent is represented by the shaded area?
1%
Stuck? Watch a video or use a hint.
Avram borrows $14,500 at 5.4% simple interest to open a small business. His bank allows him 9 years to pay back the loan. How much simple interest will Avram have to pay on the loan?
Answer:
Avram will have to pay $7,047 simple interest
Step-by-step explanation:
Simple Interest
Definition: Interest calculated on the original principal only of a loan or on the balance of an account.
Unlike compound interest where the interest earned in the compounding periods is added to the new principal, simple interest only considers the principal to calculate the interest.
The interest earned is calculated as follows:
I=A.r.t
Where:
I = Interest
P = initial principal balance
r = interest rate
t = time
Avram has a principal of P=$14,500 at a simple rate of r=5.4%=0.054 for t=9 years, thus:
I=14,500*0.054*9=7,047
I=$7,047
Avram will have to pay $7,047 simple interest
Answer:
$7,047 simple interest
Here are four false statements about the graph.
Select one and explain why it's false.
The domain is -6
The domain is -5
The range is y < 5
The range is -5y<1
Answer:
Range:y[tex]\leq[/tex]5
Step-by-step explanation:
Since y is always less than 5, y cannot be equal to it since the highest value of y was about 4.
Jack's family needs a new microwave. There is one on sale that measures 20 inches by 14 inches by 11 inches. What is the volume of the microwave?
What is the decimal value of the hex number ABE?
Answer:
The value of HEX ABE in decimal is 2750.
Step-by-step explanation:
Hex ABE to decimal explained:
The value of HEX ABE in decimal is 2750.
The value of HEX ABE in binary is 101010111110.
E 14 X 160 = 14
B 11 X 161 = 176
A 10 X 162 = 2560
HEX ABE = 2750
the binary value is: 101010111110
I'm not gonna put the list anymore just look on your other questions XD
HOPE THIS HELPS!
PLEASE MARK BRAINLIEST IF THIS HELPED YOU LEARN! :)
PLEASE HELP!! use the diagram shown. what is the length of GD?
Answer:
should be 8.
Step-by-step explanation:
As the picture shows, FG is 8. It also shows that FG and GD are congruent, so they are both equal to 8
Please help with the question in the attachment. Do not give an improper answer or you will be reported.
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Answer:
2876 books
Step-by-step explanation:
If we let y1 and y2 represent the costs from method 1 and method 2, then we have, for x books published, ...
y1 = 12841 +24.25x
y2 = 48072 +12x
These costs will be equal when ...
y1 = y2
12841 +24.25x = 48072 +12x
12.25x = 35231 . . . . . . . . . . . . . subtract 12841+12x
x = 2876 . . . . . . . . . . divide by 12.25
The costs will be the same for production of 2876 books.