A chessboard has 8 rows of squares with 8 squares in each row . Two players each put 16 chess pieces on the board , with each piece on its own square. How many squares are empty now? Explain your answer.
Answer:
40
Step-by-step explanation:
8x8 if 56 - 16 = 40
Find the coordinates of the other endpoint when you are given the midpoint (point M) and one of the endpoints (point P).
P = (10, 6) and M = (-4, 8)
Answer:
(-18, 10)
Step-by-step explanation:
If the other end point is Q, the midpoint is ...
M = (P +Q)/2
2M = P +Q
Q = 2M -P = 2(-4, 8) -(10, 6) = (-8-10, 16-6)
Q = (-18, 10)
The other end point is (-18, 10).
What are the solutions of y=x^2+5x-7
Answer:
You have two variables, and only one condition. It means you have infinite solutions of the form [tex](t; t^2+5t-7)[/tex]. Technically correct, probably not what you want to know.
If you wanted to know if and where the RHS crosses the x axis, the points are the solution to
[tex]x^2+5x-7= 0 \rightarrow x=\frac12(-5\pm\sqrt{25+28})\\x_1= \frac12(\sqrt{53}-5); x_2=-\frac12(\sqrt{53}+5)[/tex]
If you wanted the graph it's a parabola passing through the two points we just found, (0;-7), and with an axis of equation [tex]x=-\frac52[/tex].
Please help me ASAP I’m gonna fail this !!!
Answer:
90% sure it's the 4/5 x 4/5 answer. Might be wrong though.
Use the graph to identify the following: end behavior. for a branlist
Answer:
the first option, increasing as x approaches infinity and decreasing as x approaches negative infinity
Step-by-step explanation:
Does this represent a function?
Does this represent a function?
Explanation:: Determine whether a relation represents a function.
:Find the value of a function.
: Determine whether a function is one to one.
:Use the vertical line test to identify functions.
:Graph the functions listed in the library functions.
Answer:No
HELP *picture inserted*
simplify.
remove all perfect squares from inside the square roots. assume x and y are positive.
√8x^3y^2
Answer:
[tex]2xy\sqrt{2x}[/tex]
Step-by-step explanation:
Because this is a whole term in itself (no addition or subtraction), you can just directly find squares and factor them out. First, when looking at 8, you can factor out 4, to get 2 on the outside. Then, while looking at x cubed, you can factor out x squared, to get x on the outside, and when looking at y squared, you can just pull that outside itself, to get y. Now, we have one 2 and one x remaining, for a total of [tex]2xy\sqrt{2x}[/tex]
the length of 2/3 a rope is (4u-5) inches Express the total length of the rope in terms of u
Answer:
6u - 15/2 inches
Step-by-step explanation:
(2/3)rope = 4u - 5
multiply both sides by 3/2
rope = 6u - 15/2
on weekends a movie ticket costs $10.50. form an inequality and solve it to find the maximum number of tickets kate can buy with $205
STEP BY STEP EXPLANATION PLEASE
$10.50
10 Tickets would be $105.00
$105.00 - $10.50 = $94.50 so 9 Tickets would be $94.50
$105.00 + $94.50 = $199.50
$205.00 - $199.50 = $5.50 which isn't enough for another ticket.
10 Tickets + 9 Tickets = 19 Tickets.
Given the complementary angle of y is 43º. Find the supplementary angle of y
Step-by-step explanation:
complementary = adds up to 90 degrees.
supplementary = adds up to 180 degrees.
the complementary angle of y is 43 degrees.
so, y = 90 - 43 = 47 degrees.
the supplementary angle of y = 47 is
180 - 47 = 133 degrees
Hello!
Given the complementary angle of y is 43º.
90 - 43 => 47°
Find the supplementary angle of y
180-43 => 137°
Will give brainliest!
Answer:
D. 5/4
Step-by-step explanation:
Reciprocal is flipping that number around
Six children collect 45 pencils. 20% of the pencils need sharpening. How many pencils need
sharpening?
Answer:
9
Step-by-step explanation:
45*2/10=45*1/5=9
Answer:
9
Step-by-step explanation:
help me help me help me
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The required expression is ~
[tex] \sqrt{8} [/tex][tex] \sqrt{2 \times 2 \times 2} [/tex][tex]2 \sqrt{2} [/tex][tex] {2}^{1} \times{ 2 }^{ \frac{1}{2} } [/tex][tex](2 ){}^{1 + \frac{1}{2} } [/tex][tex]2 {}^{ \frac{2 + 1}{2} } [/tex][tex] {2}^{ \frac{3}{2} } [/tex]I hope it helps ~
Help me with this please!!
Answer:
A=2/6 B=5/6
Step-by-step explanation:
I really hope this helps! (i love math!)
Here’s the full picture only 44, 45, 46, and 47
Answer:
m∠6 = 115; m∠5 = 115; m∠1 = 130; m∠4 = 65
Step-by-step explanation:
44. m∠6 = 180 - 65 = 115
45. m∠5 = 180 - 65 =115
46. m∠1 = 180 - 50 = 130
47. m∠4 = 180 - (50+65) = 180 - 115 = 65
Answer:
the person below is correct
Step-by-step explanation:
hope it helped have an amazing night :)❤
Find the perimeter. Simplify your answer.
Answer:
The perimeter of the Parallelogram is 20z + 16
Step-by-step explanation:
For a Parallelogram
Perimeter = sum of all sides
P = (7z + 3) + (7z + 3) + (3z + 5) + (3z + 5)
P = 7z + 7z + 3z + 3z + 3 + 3 + 5 + 5
P = 20z + 16
Thus, The perimeter of the Parallelogram is 20z + 16
-TheUnknownScientist 72
Complete the statement ANGLES (I WILL GIVE BRAINLIEST! PLS HELP!)
refer to attachment for question
Answer:
DEF
Step-by-step explanation:
If you turn it and line it up with C on D, B on E, and A on F, the similar line symbols match.
f(x)=-x^2+9x+4f(x)=−x2+9x+4\text{Find }f(-8)Find f(−8)
Answer:
-74
Step-by-step explanation:
f(x) = -2x^2 +8x -10
Let x = -4
f(-4) = -2 ( -4)^2 +8(-4) -10
= -2(16) -32-10
= -32 -32-10
= -74
help me pls I need help
Answer:
parallel lines are two lines drawn next to each other without a intersection
Sale price = original price - rate of discount is the formula we used if original price and rate of discount are given. True or False, provide some explanation
Answer:
I say true
Step-by-step explanation:
How to calculate discount and sale price:
Find the original price (for example $90 )
Get the discount percentage (for example 20% )
Calculate the savings: 20% of $90 = $18.
Subtract the savings from the original price to get the sale price: $90 - $18 = $72.
And You're all set!
Answer:
False
Step-by-step explanation:
Sale price = original price - rate of discount * original price
Rate of discount is a percent so we need to multiply by the original price to get a a price so that all the units are the same.
Which equation represent this statement?
5 less than twice a number is 3
2n - 5 = 3
2n - 3 = 5
5 - 2n = 3
3 - 2n = 5
Answer: It was 2n-5=3 The other guy was right
Step-by-step explanation: I took the K12 test.
What are the steps for solving -3/10 + 4/10
Answer:
1/10
Step-by-step explanation:
-3/10+4/10=4/10-3/10
=1/10
Drake bought a $110,000 life insurance policy at $12.95 for a 20 year term.
What will he pay over 20 years for the premium?
Drake will pay $28,490 over 20 years for the premium.
Data and Calculations:
Life insurance policy = $110,000
Insurance term = 20 years
Premium rate = $12.95 per $1,000
Total premium per year = $1,424.50 ($12.95 x $110,000/$1,000)
Total premium for 20 years = $28,490 ($12.95 x $110,000/$1,000 x 20)
Thus, Drake will pay a total premium of $28,490 for 20 years.
Learn more: https://brainly.com/question/3164505
How do you solve
5x2 - 13x = 6
Using the ax2 +bx + c = 0 equation
I personally like the square method but I am lazy to draw this out (take too long)
5x²-13x-6 = (5x+2)(x-3)
x = -2/5 or 3
Double-check:
5x²-15x+2x-6 = 5x²-13x-6 √
Pls help i only have 20 mins to complete
Plz post your question now....
(Pythagorean theorem) do the following lengths form a right triangle? (Show steps)
Answer:
yes
Step-by-step explanation:
Pythagorean theorem equation is a²+b²=c²
c is the longest side which is 5. a and b dont matter in this case
3²+4²=5²
9+ 16 = 25..........simply
25 = 25...............true, these numbers form a right triangle
7 is 75% of what number?
Answer:
9 1/3
Step-by-step explanation:
7 - 75%
x - 100%
[tex]\frac{7 * 100}{75} = 9\frac{1}{3}[/tex]
Answer:
7 is 75% of What Number? - 7 is 75% of 9.33. 100% of 9.33 is 9.33, therefore 75 percent of 9.33 equals 7.
Step-by-step explanation:
7 is 75% of What Number? - 7 is 75% of 9.33. 100% of 9.33 is 9.33, therefore 75 percent of 9.33 equals 7.
Jane bought 8 packs of red bouncy balls, 4 packs of yellow bouncy balls, and 4 packs of green bouncy balls. There were 8 bouncy balls in each package. How many bouncy balls did Jane buy in all?
Answer for 87 points <3
Answer:
128
Step-by-step explanation:
8×8 = 64
8×4 = 32
8×4 = 32
64 + 32 + 32 = 128
I NEED TO FINISH THESE BY NEXT WEEK
Answer:
Multiply both sides by 6: 4x - 42 = 5
Step-by-step explanation:
(2/3)x - 7 = (5/6)
Multiply both sides by 6:
6*(2/3)x - 6*7 = 6*(5/6)
(12/3)x - 42 = 5
4x - 42 = 5