Answer: C
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
Select all the equations that have {4} as its solution set. 5 + 2x = 3x + 37−x=12x79−3x=12x+19x2+3=10x−21
5 + 2x = 3x + 3
7−x=12x
79−3x=12x+19
x2+3=10x−21
Answer:
Option 3 (79−3x=12x+19)
Step-by-step explanation:
When replacing x with 4 you will get the answer 67 = 67, which is true! The other three options are not true when replacing x with 4.
Equations 79-3x=12x+19 and x²+3=10x−21 has the solution set {4}.
Given that, the equations that have {4} as its solution set.
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
1) Solution of an equation 5 + 2x = 3x + 3 is
3x-2x=5-3
⇒x=2
2) Solution of an equation 7−x=12x is
7−x=12x
⇒12x+x=7
⇒13x=7
⇒x=7/13
3) Solution of an equation 79−3x=12x+19 is
12x+3x=79-19
⇒15x=60
⇒x=4
4) Solution of an equation x²+3=10x−21 is
x²+3=10x−21
⇒ x²-10x+24=0
⇒ x²-6x-4x+24=0
⇒ x(x-6)-4(x-6)=0
⇒ (x-6)(x-4)=0
⇒ x=6 or 4
Therefore, equations 79-3x=12x+19 and x²+3=10x−21 has the solution set {4}.
To learn more about an equation visit:
https://brainly.com/question/14686792.
#SPJ2
Question 6 (Worth 5 points)
(04.05 MC)
Mike measured the height of an art frame as 6.33 feet, but the actual height was 7 feet. What is the percent of error in Mike's measurement?
9.45%
9.57%
10.58%
13.33%
Points earned on this question: 0
Answer:
aaaaaaaaaaaaaaaa
Step-by-step explanation:
Answer:
9.57%
Step-by-step explanation:
7-6.33/7 = 0.00957
0.00957×100% = 9.57%
mean of 8 5 7 5 9 3 5
Last year the robotics club had 30 members. This year the club has 24 members. Find the percent change in the number of members.
Answer:
the answer is .6
Step-by-step explanation:
so 30 minus 24 is 6 turn 6 into percentage which is 0.6
Answer:
the answer is .6
Step-by-step explanation:
30- 24=6 turn 6 into percentage which is 0.6
What is this volume?
Answer:
3 ft^3
Step-by-step explanation:
Volume = (length)(width)(height)
V = (1)(3)(1)
V = 3
Julie's remote control helicopter rises 15 feet in 20 seconds. what is the rate of rise in feet per hour ?
Answer:
Step-by-step explanation:
2700 feet/hour
This graph represents a linear function
select the equation represented by the graph
Answer: \(y = \frac{1}{4} x - 1\)
Step-by-step explanation: In general, know that the equation for a linear graph is \(y = mx + b\), where
m = \(\frac{rise}{run}\) = the slope of the linear functionb = the y intercept.In our case,
m = \(\frac{rise}{run}\) = \(\frac{1}{4}\)b = -1
HELP
Using what you noticed, find the measures of the four angles at point B in this second diagram. Lines AC and DF are parallel.
Answer:
35 degree
Step-by-step explanation: Because it has equal lines on the other side at the top right.
Answer:
Step-by-step explanation:
angle EBC and angle ABH are both 34 degrees. angle ABE and angle CBH are both 146 degrees.
If the order of the numbers in a sum matters, then in how many ways can you represent the number 9 as the sum of three positive integers?
I already tried: 18, 32, and 30. None of them were right :(
Answer:
3
Step-by-step explanation: 9
can be expressed in three such ways, 2+3+4
, 4+5
or simply 9
pls help me with part B I'm confused on it and I don't know what to put I'll mark you Brainliest um if its right thx
Answer: a surface of which one end or side is at a higher level than another; a rising or falling surface.
Step-by-step explanation:
Hope this helps
Carrie had a homework assignment where she had to chart the amount of snowfall during a 4 month period over 2 consecutive years. In January of the first year, it snowed 3 inches, and in the second year, it snowed 5 inches. In February of the first year it snowed 1.5 inches, and in the second year, it snowed 4 inches. In March of the first year, it snowed 2.5 inches, and in the second year, it snowed 7 inches. In April of the first year it snowed 4 inches, and in the second year, it snowed 6 inches. In which month did the highest ratio of snowfall?
Answer:
Step-by-step explanation:
The ratio would be first year (fy) over second year (sy).
fy/sy
January: 3/5 = 0.6
February: 1.5/4 = 0.375
March: 2.5/7 = 0.3571428
April: 4/6 = 0.666..
April is the largest number. Therefore the month with the highest ratio of snowfall is April
In the figure, lines m and n are parallel to each other. Lines p and q are also parallel to each other. What is the value of x? A. 40° B. 80° C. 100° D. 180°
Answer:
C) 100°
Step-by-step explanation:
the angles are actually alternate exterior angles, which means that they're equal.
Plz help me, just answer the pic
Answer:
2.25
Step-by-step explanation:
area= length*width
length= 1.5
width= 1.5
1.5*1.5= 2.25
So, the answer is 2.25
please help!
Try to solve the equation below.
2x^2+18=10
Explain why this equation has no real number solutions.
Answer:
Step-by-step explanation:
The discriminant of this equation, i.e, D=\(b^{2}-4ac\) is less than 0:
D= 0-(4*2*18) --> which is clearly negative
When D is less than 0, the equation has no real number solutions.
Therefore, \(2x^{2}+18=0\) has no real roots
Answer:
Step-by-step explanation:
0 has no roots so thats one, and im just trying to complete a challenge so sorry if im wrong :( but make other person brainliest they did good job :)
can someone help me asap plss
Answer:
1. 200 inches; 2. 12 feet
Step-by-step explanation:
needed ASAP so i don't want to waste too much time.
Can someone please answer in ENGLISH thus is DUE tonight at 11:59 P.M.
What is l3l
BTW this is finding absolute values
PLEASE HELPPP A bowler gets a strike 25% of the time. If he throws the ball 20 times, find the probability that he gets: a) five strikes b) at least one strike
Hey there! I'm happy to help!
------------------------------------------------------------------
PART A
We see that our bowler gets a strike 25% or 1/4 of the time. This means he has a 75% chance of not getting a strike. To find the probability of him getting five strikes, we use multiplication rule, which says that if you multiply the probability of one event by another it equals the probability of both events occurring.
However, this time, we have twenty separate throws, and we have to multiply all of the probabilities of a certain event happening on each roll. This means that we will multiply five 25%s to signify the five strikes and 15 75%s to represent the 15 times he misses and this will give us the probability of this event happening. I will put these in decimal form for now and then convert it back. I will also use exponents so I don't have to write out the entire thing.
P(5 strikes)=0.25^5×0.75^15≈0.000013=0.0013%
The probability of him getting five strikes is 0.0013%.
------------------------------------------------------------------
PART B
To find the answer, we will first need to find the probability that he makes no strike at all, which will 75% multiplied 20 times.
P(no strike)=0.75^20≈0.003171211938934
We see that the percentage of the bowler getting a strike is 25%, while a miss is 75%. These add up to 100%. If these add up to 100%, then so should to probabilities of making at least one strike and making no strike at all!
100%-0.003171211938934%≈99.999682%
Basically, with twenty throws, he is guaranteed to make at least one strike with a probability of about 99.99%.
I hope that this helps! Have a wonderful day!
help me solve\frac{3}{4} \div \frac{5}{6}
4
3
÷
6
5
and then reduce the answer. I need Help please
Answer: 10/9 would be in frac form then to reduce it would be 1.11111 repeating
Answer:0.607142857
Step-by-step explanation:
3/4% of 801: Estimate
Answer:
6
Step-by-step explanation:
3/4 of 801 is approx 600
3/4 % of 801 would be this answer divided by 100 .... = 6
help 1st person gets brainlist more info inside the file / picture
Answer:
b. 28000 times 400 equals 11200000
c.9000 times 60 equals 540000
d.900 times 600 equals 540000
e. 40000 times 500 equals 20000000
Step-by-step explanation:
The cost of renting an inflatable bounce house for 2 hours is $53.50. At this rate, what is the cost of renting the bounce house for 5 hours?
Answer:80.25
Step-by-step explanation:
a quadratic function g(x) is graphed on a coordinate plane
Tonya uses the greatest common factor and the distributive property to rewrite this sum:
96 + 36
Which expression does Tonya write?
18(5+2)
6(16+6)
12(8+3)
4(24+9)
Answer:
12(8+3)
Step-by-step explanation:
12x8=96
12x3=36
Also, 12 is the GCF
Help me please il give 20 points!
Answer: 1. a. 15 b. 11 c. 2 d. 7 e. 5.5
2. Stem: Leaf:
1 9
2 5, 9
3 3, 3, 8
4 0, 7, 9
5 4, 5
6 1, 5
7 2, 7
8 1
3. a. 13 inches b. I'm pretty sure that it is the second quarter because there is more snow. c. The first quarter because it's section is more spread out among the numbers.
Step-by-step explanation:
2r-5/4 = 58
I don’t understand what to do next
Hi
The aim of an equation is to have the letter on one side and a value to the pther side of the equal sign.
For achieving this goal, I can use all operation I know and all quantities I want as long as I do it to each side in the same time. I will make apparent operation in bold.
So :
2r - 5/4 = 58
if I want 2r to be alone, I need to get rid of -5/4
The best way to do that is to add 5/4 to each side as -5/4 + 5/4 = 0
so
2r -5/4 +5/4 = 58 +5/4
2r +0 = 58 +5/4
now we have :
2r = 58+5/4
I will caculate the value of 58 +5/4
best way to do that is to convert 58 into a fraction . as 58 *4 = 232 so 58 = 232/4
so now we have :
2r = 232/4 +5/4
2r = 237/4
2r = 59.25
Now we have " 2r " , but my aim is to have only one " r" . So we divide by "2" on each side :
2r /2 = 59.25 /2
r =29.625
If I want to check my result, I exchange the letter by the value I found.
2 ( 29.625 ) - 5/4 = 59.25 - 5/4 = 59.25 - 1.25 = 58
as 58 is the value given in line one for 2r - 5/4 , so my result is correct.
Answer:
r = 118.5
Explanation:
Given expression:
\(\sf \dfrac{2r-5}{4} = 58\)
Multiply Both sides by 4
\(\sf \dfrac{2r-5}{4} \times 4 = 58\times 4\)
Doing so gives:
\(\sf 2r-5 = 232\)
Add 5 on both sides
\(\sf 2r-5+5 = 232 + 5\)
Simplify following
\(\sf 2r = 237\)
Dividing Both sides by 2
\(\sf r = 118.5\)
(4/6) to the power of 5 is what
A 20/30 B 1024/30 C 20/7776 D 1024/7776
Answer:
wedrftgyh
Step-by-step explanation:
I dont have the direct answer but if ou go on google look your question up and it should show on a calculator, If not then just multiply 4/6 five times
15 points to whoever gets this right <3
Answer:
77.5
Step-by-step explanation:
Given:
Scores: 65, 70, 75, 80, 85, 90, 95
Number of Students: 8, 5, 3, 6, 6, 4, 2
Step 1: Calculate the sum
Sum = (65 * 8) + (70 * 5) + (75 * 3) + (80 * 6) + (85 * 6) + (90 * 4) + (95 * 2)
= 520 + 350 + 225 + 480 + 510 + 360 + 190
= 2635
Step 2: Calculate the mean
Mean = Sum / Total Number of Students
= 2635 / (8 + 5 + 3 + 6 + 6 + 4 + 2)
= 2635 / 34
≈ 77.5
Answer:77.5
Step-by-step explanation:
Which best describes the polygon with the verticels (-3, 2), (4, 2), (4, 9) and (-3, 9)
On a scavenger hunt, you find 16 out of 20 objects. Write "16 out of 20" as a fraction in simplest form, a decimal, and a percent.
Hi there, here's your answer:
According to the question, we find 16 out of 20 objects.
To express this in a fraction at its simplest form,
We first write down the fraction.
\(\frac{16}{20}\)
The HCF of 16 and 20 is 4.
On dividing the numerator and denominator by 4, we get: \(\frac{4}{5}\)
To express \(\frac{4}{5}\) as a decimal:
Observe the denominator. We know that 5×2 = 10
On multiplying the numerator and denominator by 2, we get \(\frac{8}{10}\)
Which, in decimal form, is 0.8
To express \(\frac{16}{20}\) as a percentage,
We simply multiply the fraction by 100.
\(\frac{16}{20}\) × \(100\) \(= 16\) × \(5 = 80\)%
Therefore, 16 out of 20 in percentage is written as 80%.
Hope it helps!
What is the greatest number less than 400 such that 4 is the greatest common divisor of the number and 24?
Answer:
its simple greatest number less that 400 is 399
Answer:
388
Step-by-step explanation:
Definition from Wikipedia
In mathematics, the greatest common divisor (GCD) of two or more integers, which are not all zero, is the largest positive integer that divides each of the integers. For two integers x, y, the greatest common divisor of x and y is denoted as gcd(x,y) . For example, the GCD of 8 and 12 is 4, that is, gcd(8,4)=4 (https://en.wikipedia.org/wiki/Greatest_common_divisor)
Methodology to find greatest common denominator(factor) for 2 numbers
Write down the divisors of both numbersCollect the common divisors of both termsChoose the largest divisor from the above termsThe divisors of 24 are 1, 2, 3, 4, 6, 8, 12, 24Since the number is less than 400, it must be 4 x D where D < 100Let's try 4 x 99 = 396. Divisors are 1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 396. gcd(24, 396) = 12.Try D = 98 ==> 4 x 98 = 392 with divisors 1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392. gcd(24, 392) = 8Try D = 97 ==> 4 x 97 = 388. Divisors of 388 are 1, 2, 4, 97, 194, 388 gcd(4, 388) = 4Note that even though I have listed all divisors of the higher number, you don't have to compute all divisors. You can stop figuring out the divisors once the larger number is divisible by the number that is higher than 4 but slosest to i. For example, in the case of 396, I would stop computing as soon as I found it is divisible by 6