Answers
Answer:
[tex]1) B[/tex]
[tex]2)\ B[/tex]
[tex]3)\ B[/tex]
[tex]4)\ C[/tex]
Step-by-step explanation:
1)
Let's use the Pythagorean Theorem:
[tex]X^2 + 13^2 = 21^2[/tex]
[tex]X^2 + 169 = 441[/tex]
[tex]X^2 = 272[/tex]
[tex]X= \sqrt{272} = 4\sqrt{17} = 16.5[/tex]
2)
Let's use the Pythagorean Theorem:
[tex]16^2 + 28^2 = x^2[/tex]
[tex]x^2 = 1040[/tex]
[tex]x = \sqrt{1040} = 4\sqrt{65} = 32.2[/tex]
3)
Let's use the Pythagorean Theorem:
[tex]7^2 + 24^2 = 25^2[/tex]
As this equation is correct, these three lengths could be used in a right triangle.
4)
Let's use the Pythagorean Theorem:
[tex]7^2 + 24^2 = 25^2[/tex]
As this equation is correct, these three lengths could be used in a right triangle.
Related Questions
Does anyone know the answer for this?
Answers
I need help pls show work dont just answer for the pts..
Answers
Answer:
volume = 24,501.42
Step-by-step explanation: the way i did it:
first find the radius, 34 divided by 2 = 17π
then multiply the radius by itself 17 x 17 = 289
after, multiply 289 by 27 to get 7,803
then multiply 7803 by 3.14 to get 24,501.42
Hope this is correct!
(p.s.) if you do it on a calculator and use the pi symbol (π) the answer would be 24,513.84
I know the answer can someone just help me explain it???
Answers
Step-by-step explanation:
It is Graph B. We can do this by checking the points. The equation given is d = 5t^2, where d technically is the y-coordinate and t is the x-coordinate. On Graph B, two obvious points are (1, 5) and (2, 20). We can check these points to see if they fit the equation.
(1,5): d = 5t^2
5 = 5(1)^2
5 = 5*1
5 = 5, so this point is correct.
(2, 20): = d = 5t^2
20 = 5(2)^2
20 = 5*4
20 = 20, so this point is correct.
We know that Graph A is incorrect because it doesn't follow the equation. The line goes through (1, 5), which we already know is correct, (2, 10), (3, 15), and (4, 20). We already figured out that (2, 20) is correct so (2,10) can't be correct. (3, 15) and (4, 20) are also incorrect but in this case, we only need to find one incorrect coordinate to validate our answer. Thus, as Graph A is wrong, Graph B is right.
Find the sale price or selling price.
17. Original price: $15
Discount: 5%
Sale price:
Answers
Answer:
14.25
Step-by-step explanation:
So, lets go over our information.
We have a price of 15 dollars.
And it is 5% cheaper.
This means that the price is 95% of what it used to be.
We must find 95% of 15.
We know that to put 95% into decimal form, we must divide by 100:
95/100
=
0.95
So we know we must multiply 15 by 0.95:
15x0.95
=
14.25
So our price is now 14.25 dollars
hope this helps! :)
I’m not sure if this is right
Solve the equation
x^2 = -8x-7
by factoring
Answers
Answer:
x= -1,-7
Step by step:
Answer:
x = -7 and -1
Step-by-step explanation:
Move the right side of the equation over to the left;
x^2+8x+7 = 0; Factor
(x+7)(x+1)=0 ; Solve for x;
x = -7 and -1
i need help please help meeeehhh
Answers
Answer:
e=26
d=52
f=154
Step-by-step explanation:
theyre equal to the ones across from them, and i used a line to find the measure of d
The ratio of lime juice to orange juice in a drink is 3:8. How much orange juice is used in 50 L of the mixture?
Answers
4 6/11 is the value of 1 part of the ratio (1). 13 7/11 of the muxture is orang juice, in litres.
Plz help meeee plz help
Answers
Answer:
The value of k would be [tex]\frac{1}{2}[/tex] also written as 0.5
Hope this helps!
+ listen
19. Isabel spent $34.93 for 7 books on her
summer reading list. If the books were all the
same price, how much did each one cost?
Answers
Answer:
$4.99
Step-by-step explanation:
[tex]34.93 \div 7 [/tex]
Answer:
[tex]7 \: books = 34.93 \: dollars \\ 1 \: book = ( \frac{1}{7} \times 34.93) \: dollars \\ = 4.99 \: dollars[/tex]
Use a permutation expression to solve.
In a race of 43 people, how many different ways can the runners place in 1st, 2nd, and 3rd?
Answers
Answer:
74046
Step-by-step explanation:
Permutations = [tex]_np_r=\frac{n!}{(n-r)!}[/tex]
where r = choice of things from a set ( in this case the 3 places ) so r = 3
and n = amount of things ( in this case the 43 people ) so n = 43
We then plug in the values of n and r in the permutations formula
[tex]\frac{43!}{(43-3)!} =74046[/tex]
Hence the answer is 74046
Help will award brainliest!!!!
IS THE ANSWER A?
Answers
Answer:
it is A becuase it passes through 0,0 and 5,5 the rest either pass through 5,5 but not 0,0 and B doesnt pass thorugh 5,5 but does pass thorugh 0,0 so its A
Step-by-step explanation:
What would be the algebraic rule for a dilation with a scale factor of 3?
Answers
Answer: multiply each point by 3. You would need to multiply both the x and y value in the point to find the new dilated point.
Step-by-step explanation:
Help me
Compute The area of each figure below. include units in your answer. Decimals may be rounded to the nearest tenth.
Answers
Answer:
A = 135 sq in
Step-by-step explanation:
Area of parallelogram is base x height
A = 15(9)
A = 135 sq in
No links! Answer please will give brainliest if I can!
Answers
answer:
i drew the graph since i couldn’t write it out
What’s the quotient of 5,045 divided by 23
Answers
Answer:
219.347
Step-by-step explanation:
Answer:
93
Step-by-step explanation:
There are 20 marbles in the box. 4 marbles are black, 6 marbles are blue, 10 are red. What is the probability of drawing a black OR a red marble?
Answers
Answer:
7/10 or 70% or 0.7
Step-by-step explanation:
4 black, 10 red
10+4=14
now you put it over the total marbles
14/20=7/10
i don't know how your teacher wants you to give the answer but it is 7/10 or 0.7 or 70%
Solutions for y=-x^2-5x+12
Answers
Answer: y = -(x+5/2)^2+73/4
Step-by-step explanation:
Janet uses 4 feet of ribbon to decorate each pillow. The ribbon comes in 225-foot rolls. How many
pillows will she be able to decorate with one roll of ribbon? Will there be any ribbon left over?
Answers
Answer:
56 and there will be 1 foot of ribbon left over
Step-by-step explanation:
225/4=56.25
Solve: 2x-4 = -(x-6)/2
Answers
Answer:
x = 14/5
Step-by-step explanation:
2x-4= -x-6/2
multiply by 2 on both sides to get rid of the fraction
4x-8= -x-6
add both sides by 8 and both sides by x to get the constants on the right and the variables on the left
4x+x=6+8
combine like terms/simplify
5x=14
divide both sides by 5 to isolate the x
x=14/5
i hope this helps :)
Evaluate f(−3) for f(x)=2x2−x+5.
Answers
Answer: -4
Step-by-step explanation:
2(-3)*2-(-3)+5= -4
which system of equations is represented by the graph?
Answers
Answer:
the second one
Step-by-step explanation:
plz help with this thanks
Answers
Answer:
which one
Step-by-step explanation:
the upper answer would be 38 and lower would be
Answer:
4f = 38
Step-by-step explanation:
f(x) = 9x + 2
=
f(4) = 9(4) + 2
=
4f = 36 + 2
=
4f = 38
a wise man once said 400 reduced by 3 times his age=250
Answers
Answer:
71
Step-by-step explanation:
i need help solving this
Answers
Answer:
y= - 2/3x + 3
Explanation:
easy question for anyone SLIGHTLY smarter than me pls help I don’t know how to do this
Answers
They make it all so complicated with all of the complex lines doing their own thing, though this is somewhat straight forward once you see it.
With the Domain, these are the x values that the line covers.
For this, it would be -5 ≤ x ≤ 4, because all of the x values are between these two values.
With the Range, these are the y values that the line covers.
For this, it would be -4 ≤ x ≤ 5, because all of the y values are between these two values.
With the X-Intercepts, these are the x values the line crosses for when the y value is 0.
For this, it would be -3 and -1.
With the max, it is the highest point within a graph, for where the y value is the greatest.
For this, it would be x = 4 at the coordinate (4, 5).
Jack can fill buckets of water four times fast as his sister Jill. They have to fill 400 buckets of
water for their village located at the bottom of a hill. Working together, Jack and Jill can complete
the job in six hours.
30. How many hours will it take Jack if he works alone?
Answers
Answer:
1.5 hour
Step-by-step explanation:
You divide 6 by 4.
Answer:
7.2 hrs
Step-by-step explanation:
Jack does 4/5 of the work in 6 hrs. He still needs to do 1/5 more if he's doing it by himself. 1/5 of 6 = 1.2 and 1.2 + 6 = 7.2 hrs
NO LINKS!
Select the correct answer from each drop-down menu.
Consider the end behavior of the function
g(x) = | x-2 | -3
As x approaches negative infinity, f(x) approaches
[BLANK] infinity
Options :
Negative, Positive
As x approaches positive infinity, f(x) approaches [BLANK] infinity
Options :
Negative, Positive
Answers
Answer: negative, positive
Step-by-step explanation:
FOR PLATO!
Positive
Positive
Giving brainlist to whoever answers
Answers
The right answer is 13mm
Answer:
d
Step-by-step explanation:
Suppose that the length of a certain rectangle is two centimeters more than three times its width. If the area of the rectangle is 85 square centimeters, find its length and width
Answers
Answer:
width = 5 in
length = 17 in
Step-by-step explanation:
Area of a rectangle = length x width
width = w
length = 2 + 3w
85 = (w) x (2 + 3w)
85 = 2w + 3w³
this can be solved using quadratic equation
3w³ + 2w - 85 = 0
factors of 3w³ x -85 that add up to 2w are : +17 w and -15w
(3w³ - 15w) (17w - 85) = 0
3w(w - 5) 17(w - 5) 0
w = 5
or w = - 17/3
the width cannot be a negative number. the correct width is 5 in
Length = 2 x 3(5) = 17 inches
find cot0 given cos0=2/7 and the terminal side is in quadrant IV
Answers
Answer:
0.2985
Step-by-step explanation:
find cot0 given cos0=2/7 and the terminal side is in quadrant IV
Given
cos theta = 2/7
theta = arccos(2/7)
theta = 73.40 degrees
cot theta = cot73.40
cot73.40 = 1/tan73.40
cot73.40 = 1/3.35
cot73.40 = 0.2985
hence the required answer is 0.2985