Answers
Step-by-step explanation:
x ÷ 3 - 7 = -2
x - 7 = -2 × 3
x - 7 = -6
x = -6 + 7
x = 1
Answer:x ÷ 3 - 7 = -2
x - 7 = -2 × 3
x - 7 = -6
x = -6 + 7
x = 1
Step-by-step explanation:
Related Questions
What is 3/5 times 6/5
Answers
Answer:
if its not simplified then 18/5 but if it has to be simplified then its 3 3/5
NEED HELP 20 points
Solve for x: −4x − 4 = −4(x + 2)
0
−4
All real numbers
No solution
Answers
Answer:
no solution
Step-by-step explanation:
Your regular hourly rate is $7.75 per hour. On Sundays, your employer pays time and a half. Calculate your hourly rate for Sundays.
Answers
Answer:
11.625
Step-by-step explanation:
You would divide 7.75 in half. Then add that to 7.75.
Last week, Mrs. Grant purchased a 3-pound
package of strawberries for $6.84. This week
she paid $10.24 for a 4-pound package of
strawberries. What was the difference in the
unit cost per pound that Mrs. Grant paid this
week compared to last week?
Answers
Answer: 1.28
Step-by-step explanation:
$6.84 divided by 3 = 3.28
$10.24 divided by 4 = 4.56
3.28 - 4.56 = 1.28
Hope this helps!
(If you need me to explain more just comment)
3x2 − 6x − 10 + 9x + 5x2 − 8
Answers
8x^(2)+3x-18, simplified,
i promise its easy ok
Answers
Answer:
1)1/3
2)3
Step-by-step explanation:
rise over run then reduce
wrong
Both the circles in the figure below have a radius of 5 cm. Find the area of the rectangle?Immersive Reader
(1 Point)
50 sq.cm
50π sq.cm
100 sq.cm
200 sq.cm
PLEASE HELP ME PLS!
Answers
Answer:10
Step-by-step explanation:
I guessed
The area of the rectangle is 200 square cm
The radius of the circle is given as:
[tex]r = 5cm[/tex]
The width of the rectangle is made by 2 circles (i.e. 4 radii).
So, we have:
[tex]Width = 4r[/tex]
The length of the rectangle is made by 1 circle (i.e. 2 radii).
So, we have:
[tex]Length = 4r[/tex]
The area of the rectangle is then calculated as:
[tex]Area =Length * Width[/tex]
This gives
[tex]Area = 2r * 4r[/tex]
[tex]Area = 8r^2[/tex]
Substitute 5 for r
[tex]Area = 8 * 5^2[/tex]
[tex]Area = 200[/tex]
Hence, the area of the rectangle is 200 square cm
Read more about areas at:
https://brainly.com/question/14137384
please help 15 points
x2≥−4
Answers
Answer:
Solve for
x
by simplifying both sides of the inequality, then isolating the variable.
Step-by-step explanation:
Answer:
Does the name, Josh, Sound familiar? Maybe that'll ring a bell of why I'm saying this.
Step-by-step explanation:
Y=-2(x+3)^2+26
what is the standard form
Answers
Answer:
Y = 2x^2+12x+44 (standard form / quadratic form)
Step-by-step explanation:
2(x+3)^2+26
2(x^2+6x+9) + 26
2x^2+12x+18+26
2x^2+12x+44
What is the domain and range of y= x⁴-1?
anyone help me quickly please!!!
Answers
-3 • 2 • (-2)
HELP fast
Answers
Answer:
12
Step-by-step explanation:
-3 * 2 is -6
-6 * -2 is 12
because a negative times a negative is positive
Due to inflation, prices have increased by 12% since 2012. If the current price of a car is $34,500, how much would it have cost in 2012? Round your answer to the nearest cent.
Answers
Answer:
that depends on the year. like round from 2020?
Step-by-step explanation:
Tell whether −5.236¯¯¯¯¯ is terminating or repeating.
Answers
Answer:
Terminating
Step-by-step explanation:
Just did it!
Answer:
-5.236 is a terminating decimal. I hope this helps you!
A class of 27 students had a mean of 83 on a math quiz. The 12 girls in the class had a mean of 80.5 on the quiz. What was the mean of the boys’ scores?
a. 77
b. 77.5
c. 85
d. 85.5
Answers
Answer:
D
Step-by-step explanation:
It would most likely have to be above 83 to bring the average down, so A and B are out. It would most likely be D, since it would equally be 5 between 80.5 and 85.5 to get an even 83.
If a man earns $805 per week, in how many days he will earn $1,840?
Answers
Answer:
15.99 or rounded to 16 days
Step-by-step explanation:
1,840 divided by 805 = 2.28
2.28 times 7 = 15.99
Step-by-step explanation:
There are seven days in one week. To find out how much money this man earns in ONE day, you can divide $805 by 7 days like so:
$805 / 7 days = $115 per day
To find out how many days it takes for the man to earn $1,840, you must divide $1,840 by $115 to get the number of days like so:
$1,840 / 115$ = 16 days
Therefore, the man earns $1,840 in 16 days.
simplify this expression 3 to the power of -3
27
-27
1/27
-1/27
Answers
Find an equation of the line with slope m that passes through the given point. Put the answer in slope -intercept form.
(5, 3), m=-3/4
Answers
Answer:
y = -3/4x + 6.75
Step-by-step explanation:
Slope intercept form is y = mx + b, where m is the slope and b is the y intercept.
Plug in the given point and slope into the equation, then solve for b:
y = mx + b
3 = -3/4(5) + b
3 = -3.75 + b
6.75 = b
Then, plug in the slope and y intercept into the equation:
y = -3/4x + 6.75 is the equation of the line in slope intercept form
Captain Ben has a ship, the H.M.S Crimson Lynx. The ship is four furlongs from the dread pirate Umaima and her merciless band of thieves.
If his ship hasn't already been hit, Captain Ben has probability \dfrac{3}{4}
4
3
start fraction, 3, divided by, 4, end fraction of hitting the pirate ship. If his ship has been hit, Captain Ben will always miss.
If her ship hasn't already been hit, dread pirate Umaima has probability \dfrac{1}{2}
2
1
start fraction, 1, divided by, 2, end fraction of hitting the Captain's ship. If her ship has been hit, dread pirate Umaima will always miss.
If the Captain and the pirate each shoot once, and the pirate shoots first, what is the probability that both the pirate and the Captain hit each other's ships?
Answers
Answer:
0
Step-by-step explanation:
We are told that if the Captain's ship has been hit, he will always miss and since the pirate is shooting first, the captain's ship could be hit. So the probability that both of them hit each other's ship is 0 because if the pirate hits the Captain's ship, he will always miss. 1/2 * 0 = 0
There is no way for both of them to hit each other's ships because if their ships have been hit, they will always miss.
Answer:
0
Step-by-step explanation:
khan academy ( its actually right im not joking)
Find the distance between the points (13,19) and (13,-14)
Answers
Answer:
[tex]d = 33[/tex]
Step-by-step explanation:
Distance Formula: [tex]d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
Simply plug in the 2 coordinates into the distance formula to find distance d:
[tex]d = \sqrt{(13-13)^2+(-14-19)^2}[/tex]
[tex]d = \sqrt{(0)^2+(-33)^2}[/tex]
[tex]d = \sqrt{(-33)^2}[/tex]
[tex]d = 33[/tex]
Answer:
the distance between the two points is 33 units.
Step-by-step explanation:
because the two points have the same x value, we only need to consider the y values.
find the difference to solve for the distance.
[tex]19-(-14)\\19+14\\33[/tex]
the answer is 33 units.
hope this helps :)
If a circle has an area of 84π units then what is the measure of its
radius in exact units?
a. 2√21 units
b. √ 54 units
C 10.4 units
d. 108 units
Answer quickly please
Answers
a. 2√21 units
Step-by-step explanation:Hi there !
Area formula
A = π·r²
replace A84π = πr²
r² = 84π/π
r² = 84
r² = 2²×3×7
r = √2²×3×7
r = 2√3×7
r = 2√21
Good luck !
Find the measure of the following angles.
1) M
2) M
3) m
4) m
5) M
Answers
10 times as many as 100 is hundreds or thousand
Answers
Answer:
thousands?
Step-by-step explanation:
10x100=1000
Answer:
10·100=1000. (THOUSANDS)
Step-by-step explanation:
The sum of twice a number and 1 is less than 5.
Answers
Answer:
2x + 5 ≤ x - 3
Step-by-step explanation:
Answer:
[tex]2x + 1 < 5[/tex]
6m+5n when m =6 and n=4
Answers
Answer:
Step-by-step explanation:First, remove all of the terms from parenthesis. Be careful to handle the signs of each individual term correctly:
5m +5n+6m−4n
Next, group like terms:
5m+6m+5n−4n
Now, combine like terms:
(5+6)m+(5−4)n
11m+1n
11m+n
Eddie had $72.58 in his wallet. He received $40 for his birthday, and bought himself a game that cost $15.18. Select all
that apply to find how much money Eddie now has.
Add all the amounts to find how much Eddie now has.
Eddie has $97.40 left.
Eddie had $112.58 before he bought the game.
Add a placeholder zero to $72.58.
Subtract the amount Eddie received for his birthday
Answers
so the correct answer is eddie had $112.58
Suppose you conduct a hypothesis test about a population mean when the standard deviation is unknown by calculating a t statistic and determining whether to reject the null hypothesis. Assume that your t statistic is a positive value and that you will reject the null hypothesis when t is very large. For each of the potential changes to the components of your study design or the results listed below, determine the change to the t statistic.
a. A switch from using a two-tailed test to a one-tailed test
b. An increase in the sample variance (s^2)
c. An increase In the significance level (such as using α= 0.05 instead of σ= 0.02)
d. A decrease in the sample Size (n)
Answers
Answer:
a. remain the same
b. decrease
c. remain the same
d. t decreases
the answers are in bold letters under each question. Thank you
Step-by-step explanation:
a. A switch from using a two-tailed test to a one-tailed test
A switch from 2 tailed test to one tailed test will have t statistic remain the same. This does not change the value of t statistic
b. An increase in the sample variance (s^2)
when sample variance s^2 is increased, we will have it that standard error has increased. therefore t statistic will decrease
c. An increase In the significance level (such as using α= 0.05 instead of σ= 0.02)
t statistics will remain the same. this is due to the fact that significance level is not a part of the t statistics formula.
d. A decrease in the sample Size (n)
when sample size is decreased, standard error will increase. therefore t statistic will decrease.
The use of student-test implies:
Normal distributionSample size below n < 30The solution is:
a) t(s) will be the same
b) t(s) will decrease
c) t(s) will be the same
d) t(s) will decrease
a) To calculate t(s), we use the equation:
t(s) = (μ - μ₀)/s/√n (1)
where:
μ is sample mean
μ₀ is the population mean
s is sample standard deviation
n sample size
As we can see, t(s) does not depend on the confidence level (α), therefore changing confidence level, would not affect t(s) value
b) Increasing s², will make t(s) decrease as from equation (1)
c) As explained in letter a), t(s) does not depend on α. Hence, changing α, would not affect the value of t(s)
d) If the sample size n decrease t(s) will decrease
Related Links: https://brainly.com/question/14004751
Is the Mean Value Theorem applicable to the function f(x) = |x - 1| on the interval [0, 2]?
Why or why not?
Answers
Ruchi had 2 1/2 litres of milk. She used 1/2 litre for curd, 3/5 litre for tea, 1/4 litre for coffee, and the remaining she gave to her children in the breakfast. How much milk was used by the children for breakfast?
Answers
Answer: 1 15/100
Step-by-step explanation: 2 1/2- 1/2 = 2 - 3/4 = 1 3/4 - 3/5 = 1 15/100
Given parameters:
Total volume of milk Ruchi has = [tex]2\frac{1}{2}[/tex] liters
Amount used for curd = [tex]\frac{1}{2}[/tex] liters
Amount used for tea = [tex]\frac{3}{5}[/tex] liters
Amount used for coffee = [tex]\frac{1}{4}[/tex] liters
Unknown:
Quantity of milk used by the children for break fast = ?
Since this quantity is the remaining volume;
Remaining volume = Total volume - (Amount used for curd + amount used for tea + amount used for coffee)
Remaining volume = [tex]\frac{5}{2} - (\frac{1}{2} + \frac{3}{5} + \frac{1}{4} )[/tex]
Remaining volume = [tex]\frac{23}{20}[/tex]
The remaining volume used by the children is [tex]\frac{23}{20}[/tex]
What do the factors (x+2)(-8x+70)in the factored form represent?
Answers
Answer:
-2(x+2)(4x-35)
Step-by-step explanation:
0/4 06 Fill in the Blank Text The ratio of the number of people who own a smartphone to the number of people who own a flip phone is 6:4. If 200 more people own a smartphone than a flip phone, how many people own each type of phone?
Answers
9514 1404 393
Answer:
smart phone: 600flip phone: 400Step-by-step explanation:
The difference in ratio units is 6-4 = 2, which corresponds to 200 people. So, each ratio unit corresponds to 200/2 = 100 people. Then the ratio 6 : 4 corresponds to 600 : 400 = smart : flip owners.
The number of phone owners is ...
600 smart phone
400 flip phone