Answer:
2.65 I think I am not sure but the solution
Step-by-step explanation:
3x² = 28 - 7
3x² = 21
x² = 7
x = 2.65
Answer:
x = ± [tex]\sqrt{7}[/tex]
Step-by-step explanation:
Given
3x² + 7 = 28 ( subtract 7 from both sides )
3x² = 21 ( divide both sides by 3 )
x² = 7 ( take the square root of both sides )
x = ± [tex]\sqrt{7}[/tex]
Evaluate 42,147÷63. Round to the nearest whole number, if necessary.
Answer:
669 is the answer to this equation
Step-by-step explanation:
brainliest?
Answer:
669
Step-by-step explanation:
hey can anyone pls answer dis math question rq!
Answer:
9 inchesStep-by-step explanation:
Original size = 6 ftScale factor = 1/8Clone = original * scale factor
Clone size
6 ft*1/8 = 3/4 ftConverted to inches
1 ft = 12 in3/4 ft = 3/4 * 12 in = 9 in
Rotate (1,4) 90 degrees clockwise.
ANSWER FAST PLZZ! will give brainliest
Answer:
(4,1) I believe. Do you mean in a graph with coordinates?
Step-by-step explanation:
Mofor had some candy to give to his three
children. He first took two pieces for
himself and then evenly divided the rest
among his children. Each child received
four pieces. With how many pieces did he
start?
Answer:
He started with 14 peices of candy
Step-by-step explanation:
We know that there are three children and each gets 4 pieces so we do 3x4=12 and then add the 2 that he took for himself which gives us 14.
Help Please ASAP!!! anyone?!?
Step-by-step explanation:
This angle can be written in three different ways -
∠RST ∠S∠TSRTherefore,
Options A, B, C are correct.
Find the LCM (least common multiple) of 13 and 52.
LCM =
52, because 52 is a multiple of 13 (13*4 = 52)
Answer:
The answer is 52
What number should be placed in the box to help complete the division calculation?
Answer:
260
Step-by-step explanation:
55.6666666667 as a fraction
Answer: Step-by-step explanation:
What is 5.56666666667 as a fraction?
To write 5.56666666667 as a fraction you have to write 5.56666666667 as numerator and put 1 as the denominator. Now you multiply numerator and denominator by 10 as long as you get in numerator the whole number.
5.56666666667 = 5.56666666667/1 = 55.6666666667/10 = 556.666666667/100 = 5566.66666667/1000 = 55666.6666667/10000 = 556666.666667/100000 = 5566666.66667/1000000 = 55666666.6667/10000000 = 556666666.667/100000000 = 5566666666.67/1000000000 = 55666666666.7/10000000000 = 556666666667/100000000000
And finally we have:
5.56666666667 as a fraction equals 556666666667/100000000000
Which equation shows a proportional relationship between x and y?
y = 16
y = 7x
y=−7x−2
y = 9x + 1
The equation that shows a proportional relationship is y = 7x.
How to find the equation that is proportional?Two variables have a proportional relationship if all the ratios of the variables are equivalent.
In other words, a proportional relationship is one in which two quantities vary directly with each other.
Therefore, a proportional relationship can be represented as y = kx.
where
k = constant of proportionalitythe variables are x and yTherefore, y varies directly as x in a proportional relationship.
Hence, the equation that shows proportional relationship is y = 7x as 7 is the constant of proportionality. y and x are the variables.
learn more on proportional relationship here: brainly.com/question/20213987
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Answer:
y = 7x
Step-by-step explanation:
the proportional relationship is y = 7x as 7 is the constant of proportionality. y and x are the variables.
what is the coefficient of a^8b^2 in the expansion (1/3a^2 - 4b)^6
Step-by-step explanation:
(1/3a^2-4b)^6 for such an expansion the general term is
[tex]tr + 1 = \binom{6}{r} \times ( \frac{1}{3} {a}^{2} ) ^{6 - r} \times (4b)^{r} [/tex]
we want b^2 so r=2
so the formula transform to:
C6,2*(1/3)^4*a^8*4^2*b^2 so the coefficient of a^8b^2 is
(6*5/2*1)*(1/3^4)*4^2=
6*5*4*4/2*3*3*3*3=16*5/27=80/27
The snack bar at the school purchases water bottles at wholesale and then marks them up to make a profit. It marks up the water bottles by 33 and one-third percent, an amount of $0.28. What was the wholesale price of each water bottle?
Answer:
$0.84
Step-by-step explanation:
0.28 x 3 = 0.84
0.28 0.28 0.28
= 0.84
33% 33% 33%
Answer:
0.84
Step-by-step explanation: 0.28 + 0.28 + 0.28 = 0.84. i added it 3 times because you will divide by 3
A student performed the following steps to find the solution to the equation
+14x+8 = 0. Where did the student go wrong?
Step 1. Factor the polynomial into (X + 8) and (x-6)
Step 2. x+8 = 0 or x-6=0
Step 3. x= -8 or x = 6
A. in Step 1
B. The student did not make any mistakes, the solution is correct
C. in Step 2
D. in Step 3
Answer:
In step 2
Step-by-step explanation:
you were suppose to subtract them
how many times do 8 go into 18?
Answer: 2.25
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Answer:
2.5
Step-by-step explanation:
Find the slope between the given points. REMEMBER: Slopes must be simplified.
(-10, 13). (5.-3)
Answer:
The slope is m= -16/15
Someone please help with this !!!!
Answer:
x = 132
Step-by-step explanation:
The 2 angles shown are alternate exterior angles and are congruent, thus
x = 132
how many sixteenths are there in 7/8
Answer:
14/16
Step-by-step explanation:
If you multiply 8 by 2 you get 16 so multiply 7 by 2 and you get 14/16
What does a1 stand for?
Answer:
It stands for like top quality, the best of the best
Step-by-step explanation:
first rate or excellent/first class
Solve for the slope of the graph.
Answer:
-3/4
Step-by-step explanation:
rise/run
^^^you go up 3 and move left 4
there are 9 water bottles in devin's fridge. he adds two cases that are each missing a bottle of water. when he is done, there are 31 bottles in the fridge. how many bottles are in a case?
Answer:
12
Step-by-step explanation:
Add two to the number of water bottles (33), subtract 9 (24) and divide in half, giving you 12.
What is the slope of a line parallel to y = 10?
Answer: y=6
Step-by-step explanation:
because y=10 is a vertical line so you can put any number in y= ____
14
Bolve for the value of z:
5
Z
25
Answer:
The answer is 15
Step-by-step explanation:
Thats what I got
What is the y-intercept in this problem?
Answer:
y = -3
Step-by-step explanation:
The y-intercept is where the graph crosses the y-axis. The graph is seen crossing the y-axis at y = -3, the that y-intercept is at y = -3.
Efectuar el cuadrado de un binomio: ( x – 2y ) ^2 =Respuesta necesaria. Opción única.
(1 Punto)
x^2 – 4xy + 4y^2
x^2 + 4xy + y^2
x^2 – 4y^2
x^2 – 2xy + 4y^2
Answer:
La opción correcta es;
x² - 4·x·y + 4·y²
Step-by-step explanation:
La ecuación dada es (x - 2·y) ²
(x - 2·y) ² = (x - 2·y) × (x - 2·y) = x·x + x × (-2·y) + (-2·y) × x + (-2·Y) × (-2·y)
Lo que da;
(x - 2·y) ² = x² - x × 2·y - 2·y × x + (-2·y) ²
De lo que tenemos;
(x - 2·y) ² = x² - 2·y × x - 2·y × x + 4·y² = x² - 4·y × x + 4·y²
∴ (x - 2·y) ² = x² - 4·y × x + 4·y² = x² - 4·x · y + 4·y²
Y el resultado del cuadrado simplificado es (x - ·y) ² = x² - 4·y × x + 4·y² = x² - 4 · x · y + 4·y²
La opción correcta es (x - 2·y) ² = x² - 4·x · y + 4·y².
what are you guys doing for Halloween lol I honestly am not feeling it this year
Answer:
im going to have fun with the fam and shifted one unit right and 5 units up
Step-by-step explanation:
Answer:
Me nether
Step-by-step explanat
Shifed 1 unit left and then 5 units up
How do you solve this?
Answer:
145
Step-by-step explanation:
180-137=43
43+102=145
Answer The answer is 145 because, as you see you need a 180 degree angle, so you have 137 and you need to make those two angles 180 so 180-137=43 so then you got 43+102 so that's 145 then you have that other angle so that'll be 35, so the ? mark will be 145 since that 180-35
Step-by-step explanation:
a certain map shows two roads. road a is 1 1/4 miles long but is 1 1/2 inches long on the map. what the unit rate for inches per miles on this map? if road b is 10 miles long, how long is road b on the map?
Answer:
30 inches
Step-by-step explanation:
Length of road A = 1¼ miles
Length of road A on map = 1½ inches
Unit rate for inches per miles on the map = 1½ inches ÷ 1¼ miles = ³/2 ÷ ⁵/4 = ³/2 × ⅘ = ⁶/5 inches per mile
Length big Road B on map:
Road B actual length = 10 miles
Thus, using the unit rate of ⁶/5 inches to 1 mile, length of road B on map would be calculated as shown below:
⁶/5 × 10 = 6*5 = 30 inches
Road B is 30 inches long on the map.
what is the answer?
V=\pi r^{2}h solve for pi
Answer:
The formula for the volume of a cylinder is V=Bh or V=πr2h . The radius of the cylinder is 8 cm and the height is 15 cm. Substitute 8 for r and 15 for h in the formula V=πr2h .
Define constant of proportionality.
Answer:
Step-by-step explanation:
The constant of proportionality is the constant value of the ratio of two proportional quantities x and y, typically the equation is Y=KX. The constant of proportionality is, the value of Y is dependent on how the given value of X is effected by the constant of proportionality.
Diep is saving money so he can buy a used car in 12 months . The total cost of the car he wants is $1450. Diep determines that he needs to save $120 each month to be able to afford the car what error did diep make
Answer:
He is a little off so if you use a calculater (dont know if your teacher allows you to but my teacher says they only work if you know how) youll get a little over 120 so you would need (if you round up) 121 Hope this helps sorry if im wrong :)