Answer:
k is -6
Step-by-step explanation:
first you need to simplify:
-6k+42=36-7k
then get the same ones together
6=-k
k=-6
To start factoring 2x2 - 5x - 3, we need to find two numbers whose sum (p + q) equals -5 and whose
product (p.q) equals
What value belongs in the blank?
Answer:
-6
Step-by-step explanation:
First we need to factorize the given expression
2x^2 - 5x - 3,
2x^2 - 6x+x - 3
The two number that we are going to use to split -5x are -6 and 1
Hence the required two numbers are -6 and 1
Let p = -6
Let q = 1
Taking their sump+q = -6 + 1 = -5
Take the product
p*q = -6 * 1
p*q = -6
hence the product is equal to -6
What is the Genotypic and Phenotypic ratio?
Answer:
The phenotypic ratios are the ratios of visible characteristics. The genotypic ratios are the ratios of gene combinations in the offspring, and these are not always distinguishable in the phenotypes.
Genotype is the genetic make-up of an organism that describes the nature of each trait. (the letters we often write for a certain trait)
What is the Genotypic and Phenotypic ratio?Genotype is the genetic make-up of an organism that describes the nature of each trait. (the letters we often write for a certain trait)
Phenotype is the morphology of a living organism .(the trait you usually observe while looking/tracking the organism)
For an Example:
In the flower of a pea plant there are a pink color(RR) or (Rr) and a white color(rr).
When crossing two hybrid ( with two different letters) pink colors,
P : Rr × Rr
G : R r R r
F1 : RR Rr Rr rr
The phenotype ratio will be (3 pink : 1 white)
The genotype ratio will be [1 (RR) : 2 (Rr) : 1 (rr)]..
Hence Genotype is the genetic make-up of an organism that describes the nature of each trait. (the letters we often write for a certain trait)
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Irene además de 4 pantalones y 6 camisetas tiene 3 gorras cuántas indumentarias de pantalón camiseta gorra puede llevar
Answer:
jsjJHzhhzhahahahjsjsjsj hajajsjjsjsjsjjjsjajjajsjzjzjzjsjsjsjjsjsnsjsnjsjsn
In AUVW, the measure of ZW=90°, UV = 96 feet, and VW = 58 feet. Find the measure of V to the nearest degree.
Answer:53
Step-by-step explanation:
Answer:
Step-by-step explanation:
paulette has arrived at cape horn. there are five penguins waiting to cross over to antarctica. jim goes before john but after joe. jim returns, fetches his wallet and follows the others. in which order will the penguins arrive?
Well, this is a guess. Jim goes before john, but after joe. So Jim is second. John is third, so that leaved Joe.
Joe, Jim, John. But I don't know about the other 2.
---
sorry if this doesn't help
look at the picture I attached
Answer:
6
im not really sure how to explain this, using the number line go from -2 to 4, getting you to 6 spaces
A private plane traveled from Seattle to a rugged wilderness, at an average speed of 132 mph. On the return trip, the average speed was 110 mph. If the total traveling time was 6 hours, how far is Seattle from the wilderness?
Answer:
Brainliest PLEASE!
Step-by-step explanation:
a = seattle
b = wilderness
t = time traveling at 132 mph
(4-t) = time traveling at 110 mph
distance traveled at 132 mph = 132(t)
distance traveled at 110 mph = 110(4-t)
but the two distances are equal so:
132t = 110(4-t), solving for t
t = 1.82 hrs
d= 1.82 hrs * 132 m/hr = 240 miles
7)
Which could be solved for x?
-0)
A)
2x+2
B)
3(x+ 2)
)
D)
1 / 8x = 12
CAMO is a rectangle with diagonals intersecting at W. WA = 4x - 3 , CW = x + 6 , and AO = 22 Find x.
Answer:
x = 3.5
Step-by-step explanation:
diagonals bisect each other so AW = OW
since AO = 22 then AW = 11
11 = 4x - 3
14 = 4x
x = 7/2 or 3 1/2
The table shows the number of blue marbles and red marbles that four friends have collected,
Blue and Red Marbles
Blue Red
Jasmine 12
10
Aaron
3
2
Lucian
10
10
Gretchen 14
2
Which person has the lowest ratio of blue to red marbles?
Jasmine
Aaron
Lucian
Gretchen
Answer:
C
Step-by-step explanation:
what are the factors to a2+11a+30
Step-by-step explanation:
hope this is helpful to you
A basketball player made 16 shots for a total of 38 points during a game. Some points were worth 2 points and some were worth 3 points. Write a system of equations that models this. How many 2 and 3 point shots did he make? Write your answer as a coordinate.
Answer:
4- 3s and 2- 2s
Step-by-step explanation:
3+3+2+2+3+3
Which of the following is equivalent to the expression below?
4x + 3(2x - 1) - 4x
What are the x 2x + 4 = x + 18
Step-by-step explanation:
2x+4=x+18
2x-x=18-4( Addition on the Right hand side changes to subtraction on the left hand side and wise-versa.)
1x=14
1x(1*x so X itself)
X=14
Answer:
x+2x+4_x_18=0
2x_14=0
x=14÷2
x=7
A cleaner recommends mixing 1½ cup of cleaner for every 12 cups of water. What is the ratio of cleaner to water in simplest form?
Answer:
Step-by-step explanation:
water:cleaner = 12:1.5 = 8:1
Answer:
15 cups ??? i dont know tho pay attention in class
Step-by-step explanation:
.....
Jalaysha is three years less than twice as old as Ben, and Maureen is two years older than Ben. Write an expression for Jalaysa and Maureen's ages in terms of Ben'sunknown age, b.
Write in simplest Standard Form
jalaysha age:
Maureen's age:
Answer:
3 - 2 x b
For jalaysha's age.
b + 2
Is maureen's age
Answer:
3-2*b=j
2+b=m
Step-by-step explanation:
How do I solve this
Answer:
Step-by-step explanation:
I would help but I can't see the numbers correctly so I can not help.
PLS HELP WILL MARK BRAINLIEST
Answer:
Complementary Angles
Step-by-step explanation:
When all angles are added together they have a sum of 90°. Two angles that have a sum of 90° are complementary angles.
I know this is 90° because it is a right angle.
Help plz tyyy.... hurry!
Answer:
0%
Step-by-step explanation:
im not sure but i got the answer because the square was not have any color
Q1a. A bag contains 8 red, 10 pink, 6 purple, 5 green, and 11 blue jolly
ranchers. What is the probability of selecting a green jolly rancher,
P(green)?
Answer:p=8
Step-by-step explanation:
Add them all and divide by 5.
Y= 1/2x + 3
Y= 5
Can you please explain in steps?
Thank you in advance
Answer: x=4
For this equation, you are solving for x. So first you want to get the 1/2x on a side by its self to make it easier to solve. So to do that subtract both sides by 3. (2=1/2x) Once you do that multiply both sides by 2 to get rid of the 1/2 so x is on one side by itself. (4=x) And that's your answer!
Hope this helped you!
Is this statement True. A system of independent equations has infinite solutions
Answer:
It's true.
Step-by-step explanation:
The answer I’m lost
Answer:
area = length × breadth
6×7 = 42 feet ²
Hi 2+2=? Lllalalalala aplalalaalallala Latakia,Lana,
Answer:
2+2= 4
Step-by-step explanation:
QUICK MATHS
PLEASE HELP ME ITS WORTH 25 pts (question number 29)
Answer:
A, C, D
Step-by-step explanation:
In a proportional relationship, y = kx, k is the constant of proportionality.
A)
4y = x
y = 1/4 x
k = 1/4 Yes
B)
y = 4x
k = 4 No
C)
32y = 8x
y = 8/32 x
y = 1/4 x
k = 1/4 Yes
D)
y = 0.25x
k = 0.25 = 1/4 Yes
E)
1/4 y = 2x
y = 4 * 2x
y = 8x
k = 8 No
Answer: A, C, D
What percentage of a dollar is the value of each coin combination
1. 4 dimes
2. 1 nickel and 3 pennies
3. 5 quarters and 1 dime
Answer:
1) 40%
2) 8%
3) 160%
Step-by-step explanation:
1) a dime is 10 cents. 10+10+10+10 = 40
.40/1.00 = 0.4 move the decimal to places to the right to turn into a percentage. 40%
2) 1 nickel is 0.05 cents and 3 pennies equal 0.03 cents. 0.05+0.03= 0.08 0.08/1.00=0.08
move the decimal to places to the right to turn into a percentage. = 8%
3) a quarter is 0.25 cents and a dime is 0.10 cents.
6 quarters = 0.25+0.25+0.25+0.25+0.25+0.25= 1.50
1.50 + 0.10= 1.60
1.60/1.00= 1.60 move the decimal to places to the right to turn into a percentage 160%
The area of the triangle below is 2/5 square meters. What is the length of the base Express your answer as a fraction in simplest form.
3/5 m is the height
Let's set the base of the triangle to x.
(x* 3/5) / 2= 2/5
Now just solve
x*3/5=4/5
x=4/3
The base has length 4/3
Hope it helped!
The length of the base is 4/3 meters.
What is a triangle?A triangle is a 2-D figure with three sides and three angles.
The sum of the angles is 180 degrees.
We can have an obtuse triangle, an acute triangle, or a right triangle.
We have,
The area of a triangle is given by the formula:
A = (1/2)bh
where A is the area, b is the base length, and h is the height.
We are given that the area of the triangle is 2/5 square meters and the height is 3/5 meters.
Plugging these values into the formula, we get:
2/5 = (1/2)bh
b = (2/5) / [(1/2)(3/5)]
b = (2/5) / (3/10)
b = (2/5) * (10/3)
b = 4/3
Therefore,
The length of the base is 4/3 meters.
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At the store, you see oranges on sale at 1 pound for 3 dollars. At a different store, your brother sees oranges on sale at 3 pounds for 8 dollars.
Do the oranges cost the same at both stores?
Which store offers a better deal?
Students in a statistics class are conducting a survey to estimate the mean number of units students at their college are enrolled in. The students collect a random sample of 45 students. The mean of the sample is 12.1 units. The sample has a standard deviation of 1.5 units. What is the 95% confidence interval for the average number of units that students in their college are enrolled in
The 95% confidence interval for the average number of units that students in their college are enrolled in is approximately 11.66 to 12.54 units. This means that we are 95% confident that the true population mean lies within this interval.
Here,
To calculate the 95% confidence interval for the average number of units that students in their college are enrolled in, we can use the formula for a confidence interval for a population mean when the population standard deviation is unknown but can be estimated using the sample standard deviation.
The formula for the confidence interval is given by:
Confidence Interval = Sample Mean ± (Critical Value) * (Standard Error)
where:
Sample Mean (x) is the mean of the sample (12.1 units in this case).
Critical Value is the value from the t-distribution corresponding to the desired confidence level and the sample size.
For a 95% confidence level and a sample size of 45, the critical value is approximately 2.013 (you can look this up in a t-table or use a calculator).
Standard Error is the standard deviation of the sample mean, which is calculated as the sample standard deviation divided by the square root of the sample size.
Given the information in the problem:
Sample Mean (x) = 12.1 units
Sample Standard Deviation (s) = 1.5 units
Sample Size (n) = 45
Confidence Level = 95%
Critical Value ≈ 2.013
Now, let's calculate the standard error:
Standard Error = s / √n
Standard Error = 1.5 / √45 ≈ 0.2236
Now, calculate the confidence interval:
Lower bound of the confidence interval:
12.1 - (2.013 * 0.2236) ≈ 11.66
Upper bound of the confidence interval:
12.1 + (2.013 * 0.2236) ≈ 12.54
So, the 95% confidence interval for the average number of units that students in their college are enrolled in is approximately 11.66 to 12.54 units. This means that we are 95% confident that the true population mean lies within this interval.
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12 students have blue eyes. if there are 25 students in the class, what percent of students have blue eyes
Answer:
3
Step-by-step explanation:
First, you need to turn 12 into 0.12. Then, you multiply that by 25 and boom you get 3.
This is the same every time.
For example, what percent is 28 of 49?
0.28*49=13.72.
Out of 25 students 48% students have blue eyes.
What is percentage?Percentage is the relative value indicating one hundredth part of any quantity.Percentage is denoted by (%).How to find what percent of students have blue eyes?According to the question,
Total number of students in the class = 25Total number of students having blue eyes = 12Now, we can calculate the percentage by the formula, [tex](\frac{number}{total})[/tex] x 100 %
∴ percentage of students have blue eyes [tex](\frac{12}{25})[/tex] x 100 % = 48 %
∴ percentage of students have blue eyes are 48 %
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