Chang knows one side of a triangle is 13 cm. Which set of two sides is possible for the lengths of the other two sides of this triangle?
05 cm and 8 cm
06 cm and 7 cm
0 7 cm and 2 cm
O 8 cm and 9 cm
Answer:
8 cm and 9 cm
Step-by-step explanation:
a + b > 13
1). 5 + 8 = 13
2). 6 + 7 = 13
3). 7 + 2 = 9 < 13
4). 8 + 9 = 17 > 13
-3x - 4y = 5
- 2x + 3y = -8
Answer:
x = 1 ,y = -2
Step-by-step explanation:
Solve the following system:
{-4 y - 3 x = 5 | (equation 1)
3 y - 2 x = -8 | (equation 2)
Subtract 2/3 × (equation 1) from equation 2:
{-(3 x) - 4 y = 5 | (equation 1)
0 x+(17 y)/3 = -34/3 | (equation 2)
Multiply equation 2 by 3/17:
{-(3 x) - 4 y = 5 | (equation 1)
0 x+y = -2 | (equation 2)
Add 4 × (equation 2) to equation 1:
{-(3 x)+0 y = -3 | (equation 1)
0 x+y = -2 | (equation 2)
Divide equation 1 by -3:
{x+0 y = 1 | (equation 1)
0 x+y = -2 | (equation 2)
Collect results:
Answer: {x = 1 ,y = -2
MATH MIDDLE SCHOOL HELP PLS ASAP
what is y? put the correct answer
Answer:
The -2 was not distributed properly. -2 should have been multiplied by 7 and -y, which is -14 + 2yy = 3I hope this helps!
24 21 is 60% of what number?
Answer:
could u explain it better
Answer: either I don't remember if you use the % or the number ok
Hope this helps
2421 × 60 = 145260
2421 × 60% = 1452.6
Step-by-step explanation:
The sum of 2 numbers is 15 and their difference is 1. What are the 2 numbers?
Answer:
7 & 8
Step-by-step explanation:
they are one integer apart, and if you add the two up, it makes 15
Hope this helps!
Find the solution(s) to the system of equations. Select all that apply.
y= x2 - 4
y=-x-2
A. (-2,0)
B. (0-4)
C. (1, -3)
D. (2,0)
The solution to a system of equations is where the lines intersect, which are: A. (-2,0) C. (1, -3)
What is the Solution to a System of Equations?When a system of equations is represented on a graph, the solution to the system of equations is simply the coordinates of the points where the line of the equations intersect.
Thus, the lines intersect at (-2,0) and (1, -3). Therefore, the solution to the system of equations are: A. (-2,0) C. (1, -3)
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My subtotal at the bookstore came to $11.76. What is my total with 7% sales tax added on? SHOW UR WORK
I am having trouble understanding this: Sam bought 86 pounds of flour for his bakery. Every day he used the same amount of flour to make bakery items. After 10 days, Sam was left with 25.2 pounds of flour. On average, how many pounds of flour did Sam use each day?
A. 3.01 Pounds
B. 5.65 Pounds
C. 6.08 Pounds
D. 11.12 Pounds
Please also include an explanation. Thanks!
Answer:
the average amount of flour used each day=6.08 pounds
Step-by-step explanation:
Sam bought 86 pounds of flour for his bakery.
Every day he used the same amount of flour to make bakery items.
After 10 days, Sam was left with 25.2 pounds of flour.
Now we are asked to find the average pounds of flour that Sam used each day.
Total amount of flour used=86-25.2=60.8 pounds.
As he used the flour equal amount each day for 10 days.
So, the average flour used each day=
amount of flour used/ number of days=60.8/10=6.08.
the average amount of flour used each day=6.08 pounds
Answer:
C
Step-by-step explanation:
So since Sam have 25.2 leftover pounds of flour, we can subtract that from 86, knowing that will be left over in the end. Next, we divide the number left. 86 - 25.2 = 60.8
Finally, divide that by 10, since there are 10 days.
We end up with 6.08 pounds.
A foreign country uses the stellar as its currency. Before a trip to that country, Mia wants to exchange $1700 to steller's. Which of Bank A and Bank B has the better exchange rate? How many more steller's would she get if she exchanged her $1700 at the better exchange rate instead of at the other rate?
Answer and explanation:
Stellar is a Brazilian cryptocurrency that is used to facilitate low cost and flexible payment. It was renamed lumens and is denoted XLM.
One stellar lumen is currently equal to $0.219096
For the purpose of the question and since it does not specify exchange rates for each bank, let's assume:
Bank A= 0.219097 to 1 US dollar
Bank B= 0.219099 to 1 US dollar
Using Bank A to exchange $1700 for stellars= $1700*0.219097= 372.464 stellars
Using Bank B to exchange $1700 for stellars= $1700*0.229042= 389.3714 stellars
From the above, we can see that Bank B has a better exchange rate as it is cheaper than Bank A(gives more stellar) . She should therefore use Bank B for her exchange.
In the figure below, points J, K, and L are the midpoints of the sides of AXYZ.
Suppose JK=38, X2=96, and YX=56.
Find the following lengths.
Answer:
28 ; 76 ; 38
Step-by-step explanation:
KL = [tex]\frac{XY}{2}[/tex] = [tex]\frac{56}{2}[/tex] = 28 units
YZ = 2 × JK = 38 × 2 = 76 units
LZ = 76/2 = 38 units
The lengths are: KL = 28 units, YZ = 76 units and LZ= 38 units.
What is Mid point theorem?The line segment in a triangle connecting the midpoint of two sides of the triangle is said to be parallel to its third side and is also half the length of the third side, according to the midpoint theorem.
Given:
J, K, and L are the midpoints of the sides of ΔXYZ.
JK=38, X2=96, and YX=56.
Now, using Mid point theorem
JK= 1/2 YZ
38 = 1/2 YZ
YZ= 2 x 38
YZ = 76 units.
and, KL= 1/2 YX
KL = 1/2(56)
KL= 28
LZ = 1/2 (YZ)
LZ = 1/2(76)
LZ = 38 units
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Write the equation of the line that passes through the points (-4,-4) and (6,3).
Put
your answer in fully reduced point-slope form, unless it is a vertical or horizontal
line.
Please Help‼️
y=−2/9x+3 in standard form using integers
3 + (-6) = -6 + 3
identity property of addition
associative property of addition
commutative property of addition
Answer:
Communitive property of addition
Step-by-step explanation:
Answer:
commutative property of addition
Step-by-step explanation:
4 + 2 = 2 + 4 is an example of the commutative property of addition.
PLEASE HELP I WILL MARK BRAINLIEST SHOW WOrK HOW YOU GOT IT
Answer:
7 . 8.9
8 . 19.5
9 . 9.9
10 .12.6
Step-by-step explanation:
7.x=11tan39
8.x=28cos46
9.x=8tan51
10.x=31sin24
side opposite of mentioned angle is opposite
longest side in triangle is hypotenuse
the side subtended by the angle is the adjacent
PLZ HELPPPP!!!!!!! EASY 10 POINTS *easy*
Answer:
dialation
Step-by-step explanation: can i hve brainiliest
Answer:
I need 5 Brainliest before I can become Ace
Step-by-step explanation:
A snail travels 10 cm in 4 minutes. At this rate, how long will it take the snail to travel 24 cm?
Answer:
9.6 minutes
9 minutes 36 seconds
Step-by-step explanation:
10/10 = 1
4/10 = 0.4
24 * 0.4 = 9.6
Which of these is an example of a literal equation?
A. 6+ 30 = 62
B. 3x - 4y
C. 12 = 9 + 3x
D. ax - by=k
Please help
Decide whether the pair of lines is parallel, perpendicular, or neither.
Ly: 2x + 3y = 8
L2:3x + 2y = 7
Choose the correct answer below.
A. The lines are neither parallel nor perpendicular.
B. The lines are perpendicular.
C. The lines are parallel.
Answer:
A
Step-by-step explanation:
We can solve for y for both of the lines' equations to get the point-slope form.
L1: [tex]y=\frac{-2}{3} x+\frac{8}{3}[/tex]
L2:[tex]y=\frac{-3}{2}x+\frac{7}{2}[/tex]
So, the slopes of the two lines are [tex]\frac{-2}{3}[/tex] and [tex]\frac{-3}{2}[/tex].
Remember that parallel lines have the same slope, and perpendicular lines have opposite and reciprocal slopes. These slopes are reciprocal but not opposite.
Hope this helps!
Round 958.989730738 to the nearest hundred
Answer:
958.990
Step-by-step explanation:
958.990 is the Round off to the nearest hundred.
What is rounding a number to some specific place?Rounding some number to a specific value is making its value simpler (therefore losing accuracy), mostly done for better readability or accessibility.
Rounding to some place keeps it accurate on the left side of that place but rounded or sort of like trimmed from the right in terms of exact digits.
The digit 5 acts as a limit.
If the digit on right is 5, and after it there is only zeros or no value, then we round up (increase by 1, as we did in 347500 -> 34800 ) (Well there are many detailed rules of rounding)
WE have to Round 958.989730738 to the nearest hundred.
Hence, 958.990 is the Round off to the nearest hundred.
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Solve (x + 9)^2 = 25.
square root of (x + 9)^2 = + or - square root of 25
1. Apply the square root property of equality:
2. Isolate the variable.
If x + 9 = 5, then x=
If x + 9 = -5, then x =
if x + 9 = 5 then x = -4
if x + 9 + -5 then x = -14
Answer:
if x + 9 = 5 then x = -4
if x + 9 + -5 then x = -14
Step-by-step explanation:
I dont know how to explain it.
But it was right on ingenuity
93.34 divided my what equals 18.69
Answer:
4.99411449973
Step-by-step explanation:
Easy math! Just divide 93.34 by 18.69
Answer:
4.99411449973
Step-by-step explanation:
You can divide those two numbers together and to check just divide 93.34 by 4.99411449973 and you get 18.69
Working together, Candice and Ximena painted a fence in 8 hours. Last year, Ximena painted the fence by herself. The year before, Candice painted it by herself, but took 12 hours less than Ximena took. How long did Candice and Ximena take, when each was painting alone?
Answer: Time taken by Ximena to paint the fence alone = 24 hours
Time taken by Candice to paint the fence alone = 12 hours
Step-by-step explanation:
Let x= Time taken by Ximena to paint the fence alone .
Time taken by Candice to paint the fence alone = x-12
As per given , we have
[tex]\dfrac{1}{x}+\dfrac{1}{x-12}=\dfrac{1}{8}\\\\\Rightarrow\ \dfrac{x-12+x}{x(x-12)}=\dfrac{1}{8}\\\\\Rightarrow\ 8(2x-12)=x^2-12x\\\\\Rightarrow\ 16x-96=x^2-12x\\\\\Rightarrow\ x^2-12x-16x+96=0\\\\\Rightarrow\ x^2-28x+96=0\\\\\Rightarrow\ x^2-4x-24x+96=0\\\\\Rightarrow\ x(x-4)-24(x-4)=0\\\\\Rightarrow\ (x-4)(x-24)=0\\\\\Rightarrow x=4, 24[/tex]
if x= 4
Time taken by Ximena = 4 hours
Time taken by Candice = 4-12 hours =-8 hours which is not possible. (time cannot be negative)
Therefore, x= 24
Such that
Time taken by Ximena to paint the fence alone = 24 hours
Time taken by Candice to paint the fence alone = 24-12=12 hours
least common multiple (LCM) of 4 and 14.
Answer:
28
Step-by-step explanation:
Answer:
28
Explaination:
How to solve 2x2-6+10/2=
Pleasee answer this because this is super extrimely hard
THANK YOU....
Answer:
3
Step-by-step explanation:
2*2=4
10/2=5
+-6
4-6=-2+5=3
who will donate pets on adopt me only answer if you will please?
Answer:
I can, it depends on what kind of pets tho
Brainlest - pls help thank you sm in advance
Answer
17
Step-by-step explanation:
hope this helps
In a fruit cocktail, for every 18 ml of orange juice you need 3 ml of apple juice and 54 ml of coconut milk. What is the ratio of apple juice to coconut milk to orange juice expressed in its simplest form?
Answer:
1:18:6
Step-by-step explanation:
3:54:18
This equals 1:18:6
Find the new amount given the original amount and the percent of change. 28 members; 50% decrease
a prime number is a factor of 42 and 45 what is the prime number
Answer:
Common factors between the two numbers is 3 and 1.
Step-by-step explanation:
The factors of 42 are 42, 21, 14, 7, 6, 3, 2, 1.
The factors of 45 are 45, 15, 9, 5, 3, 1.
The value of the prime number which is a factor of 42 and 45 would be 3.
Used a concept of prime number that states,
A prime number is a whole number greater than 1 whose only factors are 1 and itself. A factor is a whole number that can be divided evenly into another number. Numbers that have more than two factors are called composite numbers.
Given that the two numbers are 42 and 45
Now, factors of numbers 42 and 45 are,
The Factor of 42 are
1, 2, 3, 6, 7, 14, 21, 42
And, The factors of 45 are
1, 3, 5, 9, 15, 45
So, the prime number that is a factor of 42 and 45 is 3.
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jerry bought 5 candy bars for $14.75. if the king size candy bar cost $3.75 and a regular size candy bar cost $1.75, how much of each candy bar did he buy?
one equation looks like:
3.75x+1.75y=14.75
Answer:
King size(x): 3
Regular size(y): 2
Steps:
System of Equations:
x+y = 5
3.75x+1.75y = 14.75
Multiply 3.75 on all sides.
3.75x+3.75y = 18.75
3.75x+1.75y = 14.75
Subtract top and bottom
2y = 4
/2 /2
y = 2
After you know regular size amount, figure out king size ----3.
5-2 = 3.