Answer:
[tex]x {}^{2} - 2x - 1 = 14 \: where \: x = 5[/tex]
1.2. The following sum was answered by a gr 8 learner:
5 x 9 + 6
= 75
Is the answer correct? Supply reasons.
Answer:
The answer isn't correct because the first operation must be 5 × 9 and then + 6 . The rule is that we must do multiplication first
...................
What number can you multiply ONE equation by in the following system to obtain a matching
coefficient? (Elimination)
4x+3y=8
2x+5y=12
(Worth 10 points)
Answer:
Multiply the second equation by 2
Step-by-step explanation:
Given
[tex]4x + 3y = 8[/tex]
[tex]2x + 5y =12[/tex]
Required
Get matching coefficient for elimination
[tex]4x + 3y = 8[/tex]
[tex]2x + 5y =12[/tex]
The coefficient of x in both expressions are factors.
So, we can multiply the second equation by 2 to get the coefficient of x in the first.
i.e.
[tex]2 * (2x + 5y = 12)[/tex]
[tex]4x + 10y = 24[/tex]
So, the system becomes:
[tex]4x + 3y = 8[/tex]
[tex]4x + 10y = 24[/tex]
Now, x can be eliminated
Cecilia's family travel 2/7 of the distance your uncles house on Saturday. They traveled 4/5 of the remaining distance on Sunday. What fraction of the total distance to Uncle's house was traveled on Sunday?
Answer:
1 3/35
Step-by-step explanation:
A bakery receives 50 loaves of bread each day of the week. The table below
displays how much it spent each day last week. The bakery uses FIFO. If it
had 125 loaves of bread left on Friday afternoon, what was the current value
of its stock?
Day
Monday
Tuesday
Wednesday
Thursday
Friday
Price
$150
$175
$150
$125
$175
A. $275
ОО
B. $400
C. $350
O D. $375
its 375 loafs of bread
I need help with this plz respond fast!
Answer:
It's B
Step-by-step explanation:
It's B because the median is the middle number and Town A is less then Town B
HELP ME PLEASE HERE IS THE IMAGE I NEED THE HELP PLEASE
Answer: 1:3
Step-by-step explanation:
18 Spanish and 6 French
ratio of French to Spanish is 6:18 reduced to1:3
A bookstore tracked the data of the weight of their deliveries and the number of books in each box. They created a
scatterplot and trend line based on the data.
Weight (lbs)
4
2
1
6
8 9 10
Number of Books
Which statement would be a reasonable prediction based on the scatterplot and trend line?
A box with 10 books should weigh about 2 pounds.
A box with 10 books should weigh about 4 pounds.
A box with 10 books should weigh about 6 pounds.
A box with 10 books should weigh about 12 pounds.
Answer: I am taking the test rn and I think its (C) Since the trend line is a positive correlation and slope, so then a good estimate would be 6
Step-by-step explanation: I may be wrong, but this is the best choice in my opinion
EDIT AFTER TEST: Yep C is correct! i got a 100 on the test
Answer:
The answer is C. I hope this helps you out. Have a wonderful safe day. <3<3<3
Step-by-step explanation:
Is (4,3) a solution to the following system?
X-y=4
2x+y=5
(1 Point)
Yes
Οr
No
(Worth 10 points)
Answer:
No, it is not a solution
Step-by-step explanation:
Given
[tex]x - y = 4[/tex]
[tex]2x + y = 5[/tex]
Required
Is (4,3) a solution?
(4,3) implies that: [tex]x = 4\ y =3[/tex]
So:
[tex]x - y = 4[/tex]
[tex]4 - 3 = 4[/tex]
[tex]1 \ne 4[/tex]
Because 1 and 4 are not equal, then (4,3) is not a solution
Section B
Solve the word problems.
1
During a Science workshop, 685 people attended it on the first day
On the second day, there were 3 times as many people as on the
(a) How many people attended the workshop on the second do
(b) Each person had to pay $8 to attend the workshop
What was the total amount collected for the two days?
685
What is the measure of angle R?
Enter your answer as a decimal in the
box. Round only your final answer to
the nearest hundredth.
Answer:
45??? or 30 I'm not very good with angles
What is the first and second step to solving
3x+4=34
Answer:
X = 10
Step-by-step explanation:
3x+4=34
3x = 34 - 4
3x = 30
X = 30/3
X = 10
Which is the better value $5 for4 mangoes or $6 for 5 mangoes
Answer:
Answer would be $6 for 5.
Step-by-step explanation:
I think its the better offer because you could get 5 mangoes for $6. Even tho it is pricey, you get more mangoes. Hope it helps!
2. Raj buys a terrarium that is in the shape of a triangular prism. The dimensions of the
terrarium are shown below.
o(6)(-)+3 (6.10) - 192
5 in
5 in
4 in
o 2 ((O)(w)) + 3 (5.10) – 174
10 in
6 in
(6)(0)+(5. 10)+2 (610) 122
Raj knows that every triangular prism is made up of two triangular sides and three
rectangular sides, which equation represents the total surface area, in square inches,
of the terrarium?
(6 + 5 + 5)(10) + 2 (3 (91(a))
Answer:
Step-by-step explanation:
There are 30 students in a math class.
If 28 were present for class, what
percent are in class?
Answer:
93%
Step-by-step explanation:
28 divided by 30= 0.93
0.93= 93%
Answer:
100%
Step-by-step explanation:
30 +28=58 this is the total of people in class
58/58× 100=100%
A circle has a circumference of 12. It has an arc of length 11.
What is the central angle of the arc, in degrees?
Answer:
330 degrees
That's the central angle arc
50 POINTS FOR 5 QUESTIONS, THEY SHOULD BE PRETTY EASY IF UR PAST 7TH GRADE. ANSWER QUICKLY PLEASE AND I'LL BE DONE FOR THE DAY THANKSSSSSSSSSSSSSSSSSSSS
Question one:
what is the first step to solving x+5=27
And what is the answer using perfect algebra format
Question two:
What is the first step to solve 3w=-4 and what is the answer to the problem
The surface area of one cube is twice the surface area of a second cube.
What is the ratio of the lengths of their edges?
Answer:
8:1
Step-by-step explanation:
Volume of a cube = Length of edge³
So the equation for the small cube is,
V=L³
If the edge of the bigger cube is twice as long as the smaller cubes edge, then the equation for the bigger cube is:
V = (2L)³
= (2³)L³
= (8)L³
Combining these two in ratio form:
(8)L³ : (1)L³
You can remove the L³ from each side because they are equal
So the answer is 8:1
(fractions) 8/9 + 3/18
Answer:
13/18
Step-by-step explanation:
s t u p i d
Which inequality is true for x = 2?
A. 6x + 20 < 29
B. 7x - 10 < 11
C. 14x +10 < 37
D. 15x - 18 < 12
I’ll mark Brainlyist Please Answer!!!
Answer:
The answer to number 6: 230.4(the unit measurement "cm" "mm" etc)
The answer to number 7: 140.673538 rad
Step-by-step explanation:
For number 6: To find area, it is length times width times height. In this case, the length is 7.2. The width is 8. The height is 4.
So length (7.2) times width (8) times height (4).
7.2 times 8 is 57.6
57.6 times 4 is 230.4
For number 7: To find the area it is length times width times height. In this case, the length is 62°. The width is 13. The height is 10.
So length (62°) times width (13) times height (10).
62° times 13 is 14.0673538 rad
14.0673538 rad times 10 is 140.673538 rad
Help! I’ll reward brainest its pretty easy
(Btw it’s the third person to the bus not the first)
Answer:
Preston 48.20 seconds.
Step-by-step explanation:
Look at the times for all 4 of them.
Sarah 48.02 seconds. Preston 48.20 seconds. Josh 52 seconds. Amber 40.02 seconds.From the information given, we can find the first to the last person to the bus. Whoever came to the bus in less seconds is the first person to reach to the bus and whoever came to the bus in more seconds is the last person to reach to the bus.
1 ---> Amber 40.02 seconds.
2 ---> Sarah 48.02 seconds.
3 ---> Preston 48.20 seconds.
4 ---> Josh 52 seconds.
I hope this helps and stay safe, happy, and healthy. Also I would appreciate if you give me the brainlist or not, thank you :) !!
What is the mean of these numbers?4,5,5,2,3,3,2,8
Answer:
4
Step-by-step explanation:
Mean is the average of the set of the data in which two or more numbers are present. The mean is used to summarized the data set as the calculation of the mean includes all the values given in the data set. The mean value of the given data set is 4.
Given informationThe given numbers of the data set are,
4,5,5,2,3,3,2,8
Total numbers are 8.
MeanMean is the average of the set of the data in which two or more numbers are present. The mean is used to summarized the data set as the calculation of the mean includes all the values given in the data set.
Mean is the ratio of the sum of all the terms of the set to the the number of terms in the set.
The mean can be calculated with the following formula,
[tex]\overline x=\dfrac{\sum x}{N} [/tex]
Here N is the total number of the values in the set.
Put the values in the above formula,
[tex]\overline x=\dfrac{4+5+5+2+3+3+2+8}{8} \\ \overline x=\dfrac{32}{8}\\ \overline x=4[/tex]
Hence the mean value of the given data set is 4.
Learn more about the mean here;
https://brainly.com/question/12513463
I will mark as the brainlest if correct
Answer:
Answer A
Step-by-step explanation:
PLZ HELP ASAP 30 POINTS (Plz show work)
Choose a trinomial to factor.
3x2 − 15x + 18
10a2 + 5a − 30
4n2 − 10n − 24
Answer:
x=6 x=-1
a=1.5 a=-2
n=-1.5 n=4
Step-by-step explanation:
(a) (b) (c)
10a2+5a-30
x=-b+-√b2-4ac/2a
a=-5+-√(5)2-4(10)(-30)/2(10)
a=-5+-√25+1200/20
a=-5+-√1225/20
a=-5+√1225/20
a=1.5
a=-5-√1225/20
a=-2
A farmer sells 9.9 kilograms of pears and apples at the farmer's market. 3 5 of this weight is pears, and the rest is apples. How many kilograms of apples did she sell at the farmer's market?
Answer:
eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Step-by-step explanation:
eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Answer:
6.4
Step-by-step explanation:
Not a clear question. Is it 3.5 of this weight or, as it is written, 3 5? If the first, then the answer is 6.4.
.5% of what number is 15.8?
Answer:
316 should be your answer
Step-by-step explanation:
Answer:
3160
Step-by-step explanation:
.5% of what number is 15.8?
Let the unknown number be x.
0.5% * x = 15.8
0.005x = 15.8
x = 15.8/0.005
x = 3160
can you help me for real and not give me forbidden content
from other websites they dont help and this website is starting to go downhill with all the virus givers people are quitting because of this so if your one of them people who dont know then dont answer
Answer:
c
Step-by-step explanation:
Determine whether the given scenario meets the criteria of a binomial distribution. If not, identify the requirement that is not satisfied. If there is more than one requirement that is not satisfied, please indicate this by selecting the correct choice below. You ask ten randomly chosen college students to rate their experience at the dining hall on a scale of 1-5.
a. Yes, this scenario can be modeled using a binomial distribution.
b. No, there is no fixed number of trials and there are more than two possible outcomes for each trial.
c. No, there are more than two possible outcomes for each trial.
d. No, there is no fixed number of trials.
Answer:
c. No, there are more than two possible outcomes for each trial.
Step-by-step explanation:
Binomial probability distribution:
Only two possible outcomes, success or failure.
In each trial, the probability of a success must be the same.
The number of trials must be fixed.
You ask ten randomly chosen college students to rate their experience at the dining hall on a scale of 1-5.
There are 10 trials, which is a fixed number and respects the binomial distribution. However, there are five possible outcomes(numbered 1 to 5). Since there is more than two possible outcomes, the scenario cannot be modeled using a binomial distribution, and the correct answer is given by option c.
Find the gradient of the line segment between the points (-3,3) and (4,4).
Give your answer in its simplest form.
Answer:
1/7
Answer:
2.
Step-by-step explanation:
The gradient or slope of a straight line which is found between two points (x1, y1) and (x2, y2) is given by the formula:
m = (y2 - y1) / (x2 - x1)
Where y2 = 7
y1 = 3
x2 = 4
x1 = 2
=> m = (7 - 3) / (4 - 2)
m = 4 / 2 = 2
The gradient is 2.