Answer:
k = 2 √ 19 , − 2 √ 19
Step-by-step explanation:
Take the root of both sides and solve.
Answer:
± 8.7178 or ± the square root of 19
Step-by-step explanation:
Solve : k2-76 = 0
Add 76 to both sides of the equation :
k2 = 76
When two things are equal, their square roots are equal. Taking the square root of the two sides of the equation we get:
k = ± √ 76
Can √ 76 be simplified ?
Yes! The prime factorization of 76 is
2•2•19
To be able to remove something from under the radical, there have to be 2 instances of it (because we are taking a square i.e. second root).
√ 76 = √ 2•2•19 =
± 2 • √ 19
The equation has two real solutions
These solutions are k = 2 • ± √19 = ± 8.7178
Is 6.755 a rational number
Answer:
no.....
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
it is not an ongoing repeated number
Solve the inequality.
5(w - 3) < 5w + 20
Answer:
-15 < 20
Step-by-step explanation:
5(w - 3) < 5w + 20
Distribute;
5w - 15 < 5w + 20
Subtract 5w from both sides;
-15 < 20
Answer:
w<5
Step-by-step explanation:
(5*w-3*5)<5w+20
5w-15<5w+20
5w-5w<20-15
w<5
There are 28 red pens and 84 black pens in a bag.
Write down the ratio of the number of red pens to the number of black pens.
Give your ratio in its simplest form.
Answer:
1/3
Step-by-step explanation:
The ratio can be written as a fraction. This would be 28/84. You simplify ratios just like how you simplify a fraction. 28x3 is actually 84, so the answer in simplest form is 1/3.
Hope this helps and have a great day!! []~(^▽^)~*
The ratio of the number of red pens to the number of black pens in simplest form is, 1 : 3.
What is mean by Ratio?A ratio indicates how many times one number contain in another number. The ratio of two number is written as x : y, which is equivalent to x/y. Where, x and y are individual amount of two quantities. And, Total quantity gives after combine as x + y.
We have to given that;
There are 28 red pens and 84 black pens in a bag.
Here, Number of red pens = 28
And, Number of black pens = 84
Hence, The ratio of the number of red pens to the number of black pens is,
⇒ Number of red pens : Number of black pens
⇒ 28 : 84
⇒ 28/84
⇒ 14 / 42
⇒ 1 / 3
⇒ 1 : 3
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is my answer correct??
Answer:
no
Step-by-step explanation:
Answer:
you are correct!!
Step-by-step explanation:
pls help me, i’ll give brainliest
Answer:
10 $ a year
Step-by-step explanation:
Answer:
16 dollars
Step-by-step explanation:
earned in first 6 years: 100 dollars
100/6 is roughly 16 dollars
hope this helps! :)
rt - 2n = y solve for t
Answer:
[tex]t=\frac{y+2n}{r}[/tex]
General Formulas and Concepts:
Pre-Alg
Equality PropertiesStep-by-step explanation:
Step 1: Define equation
rt - 2n = y
Step 2: Solve for t
Add 2n to both sides: rt = y + 2nDivide both sides by r: t = (y + 2n)/rWhich organization created a shared economy?
European Union
World Trade Organization
North American Free Trade Agreements
Association of Southeast Asian Nations
Answer:
a
Step-by-step explanation:
got 100% on my final exam your welcome if wrong then you must have a different layout than me but its aka european union thats my a
The European Union is the organization which created a shared economy and is denoted as option A.
What is European Union?
This is referred to as a political and economic union of 27 member states which have their location in Europe.
It helps to foster bond through the use of a shared economy thereby making it the most appropriate choice.
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Mario got a part time job mowing lawns. On Monday he charged his neighbor $25 to mow his lawn, then spent $6 to refill his lawn mower with gas. The next day he mowed his Grandparents yard for $20. How much money does Mario have after mowing both yards?
Answer:
$39Step-by-step explanation:
Step one:
He charged $25 and spent $6 on gas on Monday.
then he made 25-6= $19 mowing his neighbor's lawn.
the next day is Tuesday(we are not told he spent any amount on gas on Tuesday).
So he mowed his Grandparents yard for $20.
total money saved for Monday and Tuesday is
19+20= $39
Hence he has $39 for mowing both yards
7
77 watermelons cost
$
8.96
$8.96dollar sign, 8, point, 96.
Which equation would help determine the cost of
5
55 watermelons?
Answer:
A
Step-by-step explanation:
7=8.96
5=??
(5×8.96)÷7= 6.4
which is shown by A
Question 1 of 10
Which of Saturn's moons has an atmosphere that is most like Earth's?
O A. Pandora
B. Atlas
Ο Ο
C. Titan
O
D. Europa
SUBMIT
Answer:
The answer is Titan
Step-by-step explanation: the atmosphere of Titan is similar to earth's atmosphere because Titan's atmosphere is mostly made up of nitrogen and so is Earth's atmosphere.
what is y= (5x+7) (-2x+3) in standard form
Answer:
y = 10x^2 + x +21
Step-by-step explanation:
Explain why 173 degrees cannot be an interior angle from any regular polygon.
173 cannot be an interior angle of any regular polygon because the number of sides would be negative.
Why can't the interior angle of the polygon be 173 degrees?
The formula that can be used to determine one of the one interior angle of an n-sided polygon is [180(n−2)]/n .
In order to determine the value of n, take the following steps:
[180(n - 2) ]/ n = 173
Multiply both sides of the equation by n
180(n - 2) = 173n
Divide both sides by 180
n - 2 = 0.961111n
Combine similar terms
n - 0.96n = 2
0.038889n = 2
n = 51.4
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I will give brainliest to the person who does this first
1. 8a+24
2. .12e
ill edit it when get the other answers
Brainiest? pls
HELP PLEASEEEEEEE ASP!!
WILL GIVE BRAINLIEST ❤️
Find the slope of the line passing through the given
points using the slope formula. Describe the slope as
positive, negative, zero, or undefined.
(-7, -18) and (-7,-4)
Answer:
Step-by-step explanation:
Slope formula= rise over run, or y2-y1 over x2-x1
y2=-4 y1=-18 x2=-7 x1=-7
-4-(-18)/-7-(7)
-22/-14 negative
Answer:
7/11
Step-by-step explanation:
the slope is positive. tell me what happens
Which of the following best describes the function shown below?
a.Linear
b.Quadratic
c.Exponential Growth
d.Exponential Decay
Answer: I need to see the picture of the work first to tell u
Step-by-step explanation:
A grocery store sells 6 bottles of water for $4 and 18 bottles of water for $10. Which is the better deal and why?
Answer:
18 bottles of water for $10 because each bottle costs 56c compared to 6 bottles of water for $4 at 67c
Step-by-step explanation:
All values rounded to the hundredth
6 bottles of water for $4
4/6=0.67
Each bottle costs 67c
18 bottles of water for $10
10/18=0.56
Each bottle costs 56c
Games with this rating contain content which the ESRB believes is generally suitable for those aged 17 years and older.
Question 4 options:
A T Teen
B eC Early Childhood
C M Mature
D E Everyone
Answer:
C. Mature 17+
Step-by-step explanation:
These games are usually not recommended at all for anyone below the age of 17 because these pieces of content include:
Violence
Smoking
References To Smoking
Blood
Language
Sexual Content
These are just a few of the topics these types of games may include.
Does any one know the answer?
Answer:
D is the answer (31.05)
Step-by-step explanation:
2.07×15 is 31.05
what is 0.2 as a fraction
Answer:
That is 1/5.
Step-by-step explanation:
It is also 20%(if you need that too.)
Graph the linear equation x=4.
A linear equation has only more than one additional, that may be expressed as [tex]\bold{ax + by = c}[/tex], and the further discussion can be defined as follows:
In this, No factor has been raised the power which is greater than one or utilized as the denominator of a fraction. When we discover pairs of values that satisfy a linear model and plot them on a coordinate grid, all the points fall on the same line.Please find the attached file of the graph.
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Write 4 1/2% as a fraction in simplest form
Answer:
9/2 but you have to simplify it
Step-by-step explanation:
t multiplied by −4 is at least −25
Answer:
Step-by-step explanation:
−4 is at least −25
A chemical company makes up batches of copper sulfate solution by adding 250 kg of copper sulfate powder to 1000 liters of water. A laboratory chemist wants to make a solution of identical concentration, but only needs 350 mL (0.35 liters) of solution.
How much copper sulfate powder should the chemist add to the water? Enter your answer in the box below in decimal format.
The mass of copper sulfate that the chemist should add is______
kg.
help me please
Answer:
0.07 kgStep-by-step explanation:
Assuming copper sulfate has same density as waterChemical to water ratio as per given is:
250 kg : 1000 liter = 1 kg : 4 literLab solution is 350 ml
Converting to same ratio as above:
350/(1 + 4) = 70 ml
70 ml : 280 ml = 70 g : 180 ml = 0.07 kg : 180 mlAnswer is 0.07 kg
Ben bought a white plastic shelf that was 6.35 feet long. He also bought a brown plastic shelf that was 2.085 feet long. How much-combined feet of shelving did Ben buy?
Answer:
combined feet of shelving = 8.435 feet
Step-by-step explanation:
To find the combined feet of shelving, we simply add the two lengths of the shelvings:
1. white plastic shelf = 6.35 feet long
2. brown plastic shelf = 2.085 feet long
combined feet of shelving = 6.35 + 2.085 = 8.435 feet
When you go to a restaurant you pay a 15% tip on a $80 bill. How much total did you pay?
Answer:
12 i think. I used a calculator ngl. but I think it's 12$
Solve the following inequality for g. Write your answer in simplest form.
-5-3(5g-4)≥2g+6-10
Answer:
[tex]g\leq \frac{11}{17}[/tex]
Step-by-step explanation:
[tex]-5-3(5g-4)\geq 2g+6-10\\-5+(-15g+12)\geq 2g-4\\-5+(-15g)+12\geq 2g-4\\7-15g\geq 2g-4\\7\geq 17g-4\\3\geq 17g\\\frac{11}{17} \geq g\\g\leq \frac{11}{17}[/tex]
The value of g in the given inequality -5-3(5g-4) ≥ 2g+6-10 is equal to or less than 11/17, g ≤ 11 / 17
What is an inequality?A relationship between two expressions or values that are not equal to each other is called inequality.
Given is an inequality -5-3(5g-4) ≥ 2g+6-10
Solving for g,
-5-3(5g-4) ≥ 2g+6-10
-5-15g+12 ≥ 2g+6-10
-15g+7 ≥ 2g-4
7 ≥ 17g -4
11 ≥ 17g
11 / 17 ≥ g
g ≤ 11 / 17
Hence, the value of g is equal to or less than 11/17, g ≤ 11 / 17
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Which one should I choose
Answer:
Third one
C.
Step-by-step explanation:
write an equation in slope intercept form that passes through the points (-4,3) and (0,2)
Answer:
[tex]y = -\frac{1}{4}x +2[/tex]
Step-by-step explanation:
Slope-intercept form: y = mx + b
Slope formula: [tex]\frac{y2-y1}{x2-x1}[/tex]
Given points: (-4, 3), (0, 2)
(0, 2) = (x1, y1)
(-4, 3) = (x2, y2)
To write the equation in slope-intercept form, we need to find the slope(m) and the y-intercept(b) of the equation.
First, let's find the slope. To do this, input the given points into the formula used to find slope:
[tex]\frac{3-2}{-4-0}[/tex]
Simplify:
3 - 2 = 1
-4 - 0 = -4
[tex]\frac{1}{-4}= -\frac{1}{4}[/tex]
The slope is [tex]-\frac{1}{4}[/tex].
To find the y-intercept, input the slope and one of the given points(in this example I'll use point (0, 2)) into the equation and solve for b:
[tex]2 = -\frac{1}{4} (0)+b[/tex]
2 = 0 + b
2 = b
The y-intercept is 2.
Now that we know the slope and the y-intercept, we can write the equation:
[tex]y = -\frac{1}{4}x +2[/tex]
Which function describes the relationship shown in the graph? A F=1.8C−80 B F=1.8C+32 C F=0.55C−17.5 D F=0.55C+44.5
Answer:
d
Step-by-step explanation:
Joanna spent 16 minutes working out on six different equipment at A gym calculate the time taken by Joanna to work out on each equipment
Answer:
2.67 minutes or 2 2/3 minutes
Step-by-step explanation:
To find the amount of time she spent on each you would divide the time by amount
16 / 6 = 2.6666...
Rounded = 2.7 minutes