Answer:
- 6
Step-by-step explanation:
3 - 9 = -6
Answer:
-6Step-by-step explanation:
[tex]3 + (-9) \\\\\mathrm{Remove\:parentheses}:\quad \left(-a\right)=-a\\=3-9\\\\\mathrm{Subtract\:the\:numbers:}\:3-9\\=-6\\[/tex]
Three points are colinear.
always
sometimes
never
In the given figure, ABCD is a rectangle. Its diagonals meet at O. If OC = 3x – 4, OB = x + 4, then find OB, OC, OA, AC, BD and OD
Answer:
OB = 8
OC = 8
OA = 8
AC = 16
BD = 16
OD = 8
Step-by-step explanation:
Given, rectangle ABCD, with diagonals AC and BD, and OC = 3x – 4, OB = x + 4,
thus, since diagonals of a rectangle are equal, therefore, AC = BD.
Invariably, 2*OC = 2*OB
Thus, [tex] 2(3x - 4) = 2(x + 4) [/tex]
Solve for x
[tex] 6x - 8 = 2x + 8 [/tex]
Add 8 to both sides
[tex] 6x - 8 + 8 = 2x + 8 + 8 [/tex]
[tex] 6x = 2x + 16 [/tex]
Subtract 2x from both sides
[tex] 6x - 2x = 2x + 16 - 2x [/tex]
[tex] 4x = 16 [/tex]
Divide both sides by 4
[tex] \frac{4x}{4} = \frac{16}{4} [/tex]
[tex] x = 4 [/tex]
OB = x + 4 = 4 + 4 = 8
OC = 3x - 4 = 3(4) - 4 = 12 - 4 = 8
OA = OC = 8
AC = 2*OC = 2*8 = 16
BD = 2*OB = 2*8 = 16
OD = OB = 8
Write down the value of 2b - 4a PLEASE HELP
Answer:
[tex]2b - 4a \\ = (b - 2a)[/tex]
Hope you understand
Answer:
[tex]\Large \boxed{2(-2a+b)}[/tex]
Step-by-step explanation:
[tex]2b - 4a[/tex]
Rearranging the expression.
[tex]-4a+2b[/tex]
Factoring out 2 from the expression.
[tex]2(-2a)+2(b)[/tex]
[tex]2(-2a+b)[/tex]
plz somebody help me
Answer:
Option 3
Step-by-step explanation:
It is the only one that increases by 8 just like the pattern
Answer: C. 40,48,56
Step-by-step explanation:
As seen in the sequence, 16, 24, 32
24-16=8
32-24=8
This means that between each term, you just add 8 to get the next term
--------------
32+8=40
40+8=48
48+8=56
Hope this helps!! :)
Please let me know if you have any question
-29=5u+6-12u solve for you
Answer:
u=5
Step-by-step explanation:
5u+6-12u=-29
5u-12u+6=-29
-7u+6=-29
-7u=-29-6
-7u=-35
-7u/-7=-35/-7
u=-35/-7
u=5
Answer:
Step-by-step explanation:
5u - 12u + 6 = -29
-7u + 6 = -29
-7u = -35
u = 5
Explain why angle is considered a defined term in geometry.
Answer:
An angle is considered a defined term in geometry because defined terms are terms that have a formal definition and can be defined using other geometrical terms.
Angle: Two rays that share the same endpoint, however, the rays take off in different directions. The area in the middle of the two rays is the angle measure.
Find g (x)-f(x) g(x)=x^2+1 and f(x)=2x+5
Answer:
Step-by-step explanation:
x^2 + 1 - 2x - 5 = x^2 - 2x - 4
Are 3x²y and -8xy² like terms? How do you know?
Answer:
No.
Step-by-step explanation:
Since 3x²y has an x² and -8xy² has a y², they are not like terms. Since they are different terms, you cannot add them together.
The expression 25x2 - 81 can be rewritten as (5x - 9)(5x + 9). (5x - 9) is a ____ of 25x2 - 81. A) divisor B) factor C) multiple D) zero
complete the division problem by determining the number that should be placed in the Box! (answer asap plz)
Answer:
598-x=78
x=598-78
=520
If A=kr² and V=kr³, find the percentage increase in A and V if r is increased by 20%
Answer:
The percentage increase in A is 44%. The percentage increase in V is 72.8%.
Step-by-step explanation:
The easiest way to go about solving this problem is to pick your own numbers and plug them into the given equations.
For example, let's say that k = 5 and that r = 10.
[tex]A=kr^{2}[/tex] ⇒ [tex]A= 5 * 10^{2} =500[/tex]
[tex]V=kr^{3}[/tex] ⇒ [tex]V= 5 * 10^{3}= 5000[/tex]
The question is asking, what is the percentage increase if r is increased by 20%. Our chosen k-value will stay the same but our r-value is going to increase. To find the new value of r, we multiply 10, our current value of r, by 1.2. This gives us a new value for r, which is 12.
[tex]10*1.2=12[/tex]
Now, we are going to plug in our new r-value and our k-value into the given equations. k = 5; new r = 12
[tex]A=kr^{2}[/tex] ⇒ [tex]A=5*12^{2}=720[/tex]
[tex]V=kr^{3}[/tex] ⇒ [tex]V=5*12^{3}=8640[/tex]
Next, we have to calculate the percentage increase in our values of A and V. To do this, we use the following formula:
[tex]Percentage Increase = \frac{final - initial}{initial} * 100[/tex]
Percentage Increase for A
Initial value: 500
Final Value: 720
[tex]Percentage Increase = \frac{720-500}{500} * 100 = 44%[/tex]
Percentage Increase for V
Initial value: 5000
Final Value: 8640
[tex]Percentage Increase= \frac{8640-5000}{5000} *100 = 72.8%[/tex]
The percentage increase for A is 44% and the percentage increase for V is 72.8%.
Hope this helps!
-2p + 1 = -4p + 9
Cómo va esto?
Mickey has a bag of 30 containing nickels, dimes, and quarters. The total value of the 30 coins is $3.65. There are twice as many nickels as there are dimes. Find the numbers of quarters
Answer:
9.9 quarters or Approximately ≈ 10
Step-by-step explanation:
Let n = number of nickels
d =number of dimes
q = number of quarters
n + d + q = 30 coins....... Equation 1
1 nickel = $0.05
1 dime = $0.10
1 quarter = $0.25
0.05n + 0.10d + 0.25q =$ 3.65.......Equation 2
There are twice as many nickels as there are dimes.
Hence
n = 2d
n + d + q = 30 coins
2d + d + q = 30 coins
3d + q = 30 coins........Equation 3
3d = 30 - q
d= 30 - q/3
0.05n + 0.10d + 0.25q =$ 3.65
Since n = 2d
0.05(2d) + 0.10d + 0.25q = $3.65
0.10d + 0.10d + 0.25q = 3.65.........Equation 4
Substitute 30 - q/3 for d in Equation 4
0.10(30 - q/3) + 0.10(30 - q/3) + 0.25q = 3.65
= 3 - 0.10q/ 3 + 3 - 0.10q/3 + 0.25q
(3 - 0.10q) + (3 - 0.10q) + 3(0.25q)/ 3 = 3.65
Cross multiply
(3 - 0.10q) + (3 - 0.10q) + 3(0.25q) = 3 × 3.65
3- 0.10q+ 3 - 0.10q + 0.75q = 10.95
6 - 0.20q + 0.75q = 10.95
0.50q = 10.95 - 6
0.50q = 4.95
q = 4.95/0.50
q = 9.9 quarters
Therefore, the numbers of quarters is approximately ≈ 10 quarters
si -x+y+z=75, entonces -(x+3)+(y-5)+(z-6)=
Answer:
67
Step-by-step explanation:
● -(x + 3) + (y - 5) + (z - 6)
● -x - 3 + y - 5 + z - 6
● (-x + y + z) + (3 -5 -6)
● 75 + 3 - 11
● 78 - 11
● 67
Please help me out with these questions.
Answer:
here's the answers to your questions
why isn’t the square root of 5 a rational number? answer asap please
Cuál es la distancia de 2 -6
Answer:
la respuesta seria 8
Step-by-step explanation:
Espero que esto ayude!
Jaleel mix 3/8 cup water with 1 5/6 cups of sugar. How many more cups of water than sugar did he use in his mixture
Answer:
1 11/24
Step-by-step explanation:
Lets convert the fractions into similars. x/8 and x/6 they have 24 in common so its 9/24 and 20/24. Now it is 1 20/24 - 9/24 The answer therefore is 1 11/24
Please give brainliest
Simplify the expression where possible.(-4 x^2 )^2
Answer:
[tex]16x^{4}[/tex]
Step-by-step explanation:
[tex](a^{m})^{n}=a^{m*n} \\\\\\[/tex] and [tex](a*b)^{m}= a^{m}*b^{m}[/tex]
[tex](-4x^{2})^{2} = (-4)^{2} *(x^{2})^{2}\\\\\\=16 * x^{2*2}\\\\=16x^{4}[/tex]
Which of the following is equal to 393,500? 0.3935 × 10 -6 39.35 × 10 -4 3.935 × 10 -5 3.935 × 10 5
Answer:
No answer is equal to 393,500
Step-by-step explanation:
You can try to solve each question.
0.3935 × 10 -6 = -2.065
39.35 × 10 -4 = 389.5
3.935 × 10 -5 = 34.35
3.935 × 10 +5 = 44.35
None of these equal to 393,500
(Maybe I am getting things wrong I am not in a smart mood today)
May I get some help?
Answer:
4 and the correct answer is 34
Step-by-step explanation:
choice c or 4; correct solution is 34 :)
hope this helps :)
Last year Sarah bought 26 bottles of coke for a birthday party at the price of $1.25 per bottle. This year she paid $35 for the same number of bottles of coke. What is the increase in total price of bottles of coke?
You are traveling to Japan and need Japanese Yen (¥ JPY). How much JPY could you get for $200 USD if the rate is USD/JPY 0.9333?
A.
¥199.07 JPY
B.
¥214.29 JPY
C.
¥186.66 JPY
D.
¥293.33 JPY
Answer:
The answer is C.
Step-by-step explanation:
0.9333* ¥ 200
= ¥ 186.66
Answer:
B 214.29
Step-by-step explanation:
usd/jpy=.9333
usd=jpy*.9333
200= jpy* .9333
jpy= 214.29
I NEED THIS ANSWER ASAP PLEASE!!!!!! John painted his most famous work in his country, in 1930 on composition board with perimeter 104.58 in. If the rectangular painting is 5.88 in. taller than it is wide, find the dimensions of the painting. What is the width? What is the length? (I need the correct Unit as well
Answer:
width=23.205 in.
length=29.085 in.
Step-by-step explanation:
width=x
length =x+5.88
Perimter=x+x+x=5.88+x+5.88=104.58
4x+11.76=104.58
4x=104.58-11.76
4x=92.82
x=23.205
width=x=23.205 In.
length=x+5.88=23.205+5.88=29.085 in.
Kathy withdrew $40 from the bank each week for six weeks. what is the change in the balance of her account? write a multiplication problem and then find the answer.
I'm in highschool and I still don't know this
Answer:
-$240
Step-by-step explanation:
40 x 6 is 240 so it changed by -$240 since it was a withdrawal
Answer:
-40 * 6 = -240
Step-by-step explanation:
Withdrawing money creates a negative number. The weeks are a positive number. So, you get -40 * 6. A negative times a positive number gives you a negative number for an answer.
Roxanne's Cafe uses 5/6 of a bag of coffee every day. How many days will 5 5/6 bags of coffee last?
Answer:
7 days
Step-by-step explanation:
If you are using [tex]\frac{5}{6}[/tex] of a bag of coffee per day, and you have [tex]5 \frac{5}{6}[/tex] bags of coffee, you want to find how many times [tex]\frac{5}{6}[/tex] goes into [tex]5 \frac{5}{6}[/tex].
This can be found using division.
First let's convert [tex]5 \frac{5}{6}[/tex] into an improper fraction:
[tex]5 \frac{5}{6} = \frac{(6\cdot5) + 5}{6} = \frac{35}{6}[/tex]
Now we set up our division equation:
[tex]\frac{35}{6} \div \frac{5}{6}[/tex]
To divide, we multiply by the reciprocal, so:
[tex]\frac{35}{6} \div \frac{5}{6} = \frac{35}{6} \cdot \frac{6}{5} = \frac{210}{30}[/tex]
Dividing both the numerator and denominator of [tex]\frac{210}{30}[/tex] by 30 gets us [tex]\frac{7}{1}[/tex], which is just 7.
Hope this helped!
Answer:
7 days or 1 week
Step-by-step explanation:
First, know what the equation is. In this case, it's 5 5/6 divided by 5/6, since you need to divide the amount you have by how much you use every day to find out how many days it will last.
The equation is 5 5/6 ÷ 5/6, but since that is harder to solve, turn the 5 5/6 into an improper fraction: 35/6
Now, just solve 35/6 ÷ 5/6, so this means you have to flip your second number and multiply instead divide when dividing fractions, so the new equation is 35/6 ×6/5
That equals 210/30, and if you take out both the 0s (cancel them out), you get 21/3 and after simplifying that, you get 7/1, which is basically 7.
Roxanne's Cafe's coffee can last them 7 days or 1 week.
pls help me i kinda for got how to do this
Answer:
24 is x=2
Step-by-step explanation:
The set notation of [-5,16) is?
Answer: [tex]\left\{x | x \in \mathbb{R}, \ -5 \le x < 16\right\}[/tex]
=======================================================
Explanation:
We have some number x such that x is a real number, so we write that as [tex]x \in \mathbb{R}[/tex] which is saying "x is in the real number set".
The portion [tex]-5 \le x < 16[/tex] is how x is restricted. This means x can be -5 or larger, but also must be smaller than 16.
This is from the interval notation [-5, 16). The square bracket means we include -5 as part of the interval, but we exclude 16 because of the curved parenthesis.
The curly braces surrounding everything indicates that we have a set of values.
-----------------
Side note:
If x is an integer, then we can get this roster set {-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15} showing all of the integers between -5 and 16, including -5 but excluding 16.
Though chances are your teacher will want you to stick to real numbers rather than just integers.
HELP PLEASE I ONLY GOT TODAY I NEED HELP ON 41,42,43, and 44 PLEASE HELP ME I NEED THIS TO GET MY GRADE UP
Answer:
Step-by-step explanation:
41. -3
42. 3
43 y^19
Answer:
41 ) b²/b^8=b^-6 ( when divide subtract exponents)
42 ) x.x².x^6=x^9 ( when multiply add exponents)
43) y^25/y^19 = y^6
44 ) when you divide numbers you make it smaller, so subtract the exponent will make the value of the base smaller.
A student is taking a science course in which there will be four test, each worth 100 point. The student has a score of 91, 93, and 95 on the first three test. The student must make a total of at least 360 in order to get an A. What scores on the test will give the student an A.
Answer: 81 is the answer but it says what scores so you might be able to put 81 and above for example 82 83 84 and so on.
Step-by-step explanation:
If you add 91 93 and 95 you should get 279 then subtract 279 from 360 which will get u the answer which is 81 simple right now please giva a thanks like and rating if you found this helpful.