It will take them 2 hours and 22 minutes to working together.
Here,
Joan paint the porch in 5 hours.
Jan can take 4 hours to paint the porch.
We have to find the time to take them working together.
What is Fraction?
A fraction simply tells us how many parts of a whole we have.
Now,
Let x is number of hours to take them working together.
Then, 1/x is how much of the porch they can paint together in 1 hour.
Joan paint the porch in 5 hours.
Then, Joan can take 1 hour to paint the 1/5 part of porch.
Jan can take 4 hours to paint the porch.
Then, Jan can take 1 hour to paint the 1/4 part of porch.
To find how much of the porch they can paint together in 1 hour, we can add together;
[tex]\frac{1}{5}+ \frac{1}{4} = \frac{1}{x} \\\\\frac{4+5}{20} = \frac{1}{x} \\\\\frac{9}{20} = \frac{1}{x}\\\\x = 20.22[/tex]
Hence, It will take them 2 hours and 22 minutes to working together.
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Helpppppppppppppppppppppppp
Answer:
2^17
Step-by-step explanation:
the indices are added when the integers are multiplied. the integer, however, does not need to be changed since it is already the same.
a farm lets you pick 4 cups of peanut butter for 10$ . How many cups do you get per dollar?
Answer : 2.5 cups per dollar
Step-by-step explanation:
You need to find to unit rate 4 cups divided by 10$ is 0.40$. Then you need to divided 0.40 into a dollar (which would be 1.00) so 1.00 divided by 0.40 is 2.5 cups
SOMEONE HELP ME PLEASE ILL GIVE BRAINLY
Answer:
Step-by-step explanation:
In order to determine the information you're being asked for, you need to complete the square on that quadratic. The first step is to move the constant over to the other side of the equals sign:
[tex]x^2-2x=3[/tex]
Here would be the step where, if the leading coefficient isn't a 1, you'd factor it out. But ours is a 1, so we're good there. Now take half the linear term (the term with the single x on it), square it, and add it to both sides. Our linear term is a -2. Half of -2 is -1, and -1 squared is +1. We add +1 to both sides giving us this:
[tex]x^2-2x+1=3+1[/tex]
Now we'll clean it up a bit. The right side becomes a 4, and the left side is written as its perfect square binomial, which is the whole reason we did this. That binomial is
[tex](x-1)^2=4[/tex] (set equal to the 4 here). Now we'll move the 4 back over and set the whole thing back equal to y:
[tex]y=(x-1)^2-4[/tex]
From this it's apparent what the vertex is: (1, -4),
the axis of symmetry is x = 1, and
the y-intercept is found by setting the x's equal to 0 in the original equation and solving for y. So the y-intercept is (0, -3).
Your choice for the correct answer is the very last one there.
For the cubic x^3 + 7x^2 + 13x + 3 has only one rational zero, x=-3. Use polynomial long division to show that the remainder is zero when dividing the cubic by x+3. Then use the quadratic formula to find the other two (irrational) zeroes.
The two irrational roots of the cubic equation are - 2 + √3 and - 2 - √3, respectively.
How to find the two remaining zeroes of the cubic equation
In this problem we find the definition of a cubic equation, of which one root is known and we need to find the two missing roots. By algebraic handling, the cubic equation is:
f(x) = x³ + 7 · x² + 13 · x + 3
f(x) = (x³ + 3 · x²) + (4 · x² + 12 · x) + (x + 3)
f(x) = x² · (x + 3) + 4 · x · (x + 3) + (x + 3)
f(x) = (x² + 4 · x + 1) · (x + 3)
Then, the roots of x² + 4 · x + 1 are found by using the quadratic formula:
x² + 4 · x + 1 = (x + 2 - √3) · (x + 2 + √3)
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The endpoints of a side of rectangle ABCD in the coordinate plane are at A(1, 6) and
B(6, 1). Find the equation of the line that contains the given segment.
The line segment is AB.
The equation is y =
Answer:
The equation is:
[tex]y = -x + 7[/tex]
Step-by-step explanation:
Given the endpoints of a side of a rectangle
A(1, 6)B(6, 1)Finding the slope
[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]
[tex]\left(x_1,\:y_1\right)=\left(1,\:6\right),\:\left(x_2,\:y_2\right)=\left(6,\:1\right)[/tex]
[tex]m=\frac{1-6}{6-1}[/tex]
[tex]m=-1[/tex]
Using the point-slope form of a line equation
[tex]y-y_1=m\left(x-x_1\right)[/tex]
substituting the values m = -1 and the point (1, 6)
[tex]y - 6 = -1 (x - 1)[/tex]
[tex]y - 6 = -x + 1[/tex]
[tex]y = -x + 1 + 6[/tex]
[tex]y = -x + 7[/tex]
Thus, the equation is:
[tex]y = -x + 7[/tex]
Which of the following statements is true about the three quadrilaterals? (4 points)
1) D and E are similar but not congruent.
2) E and Fare similar and congruent.
3) D and E are similar and congruent.
4) F and D are similar but not congruent.
Answer:
4) F and D are similar but not congruent.
Step-by-step explanation:
HOPE THIS HELP
PICK ME AS THE BRAINLIEST
Answer:
1) D and E are similar but not congruent
Step-by-step explanation:
This is because for it to be congruent they have to have the same size.
1. 6(4x+1)=78
2. 2(x+10)=60
Solve for x
Answer:
1. x= -3
2. x= 20
Step-by-step explanation:
sorry if this is wrong,
Today’s weather report states that it is highly likely to snow today. Which probability best represents the chance of snow today?
A.
0.05
B.
0.50
C.
0.95
D.
1.00
find the missing value to complete the square.
x^2 +8x+ ___
Answer:
the answer is x^2+8x+ c
Step-by-step explanation:
If x 2 + b x + c is a perfect square, then there is always the same relation ship between b and c "Find half of b and square it" , so c = ( b /2 ) ^2
x^ 2 + 8 x + ( 8/ 2 )^2 =
x^ 2 + 8 x + 4^ 2 =
x^ 2 + 8 x + 16 =
( x + 4 ) ^2
I hope that helps you
the map of the park shows that are Pond is 4 inches away from the playground the scale of a map is 1 inch represents 5.25 M how far apart are the actual pond and playground.
Answer:
21 meters
Step-by-step explanation:
Each inch is 5.25 meters, so you multiply 4(the number of inches) by 5.25(how much 1 inch represents) to get a final answer of 21. Hope this helps!
Help me with number 11 please
umm I don't remember I would say if I remembered
What is cos k ?
A 25/7
B 25/24
C 7/25
D 24/25
Answer:
c 7/25
Step-by-step explanation:
edge 2021
Find the length of the hypotenuse of a right triangle with legs of 8 and 6.
Find the inverse function for: y=4x+3 plssss answer asap i have an exam
Answer:
(x-3)/4=y
Step-by-step explanation:
substitute x for y and y for x
x=4y+3
subtract 3 from both sides
x-3=4y
divide both sides by 4
(x-3)/4=y
-4+5x-7=10+3x-2x. Solve for x
Answer:
-4 + 5x - 7 = 10 + 3x - 2x
5x - 3x + 2x = 10 + 4 + 7
4x = 21
x = 21/4
x = 5 1/4 or 5.25
Answer: 5=x
Step-by-step explanation:
-4+5x-7=10+3x-2x
Combine like terms:
-10+5x=10+x
Subtract 10 on both sides:
-10-10+5x=10-10+x
-20+5x=x
Subtract 5x on both sides:
-20+5x-5x=x-5x
-20=-4x
Divide -4 on both sides:
-20/-4=-4x/-4
5=x
g(n)=n2 + 2; Find g(3)
g(3)=______
Answer:
g(n) = n2 + 2
g(3) = (3)(2) + 2
g(3) = 8
Answer:
if g(n)=n2+2
you asked g(3)
by substituting the value we get
g(3)=3×2+2
g(3)=6+2
g(3)=8
so the answer is 8
hope it helps you mate
please mark me as brainliast.....
Someone help on this
20 pts!!!!!!
Answer:
Cannot be determined
Step-by-step explanation:
You get that angles 4 + 5 and 2 + 1 are equal to 180 each. We still have angle 3 left over, and that angle could be anything, so it cannot be determined
Answer:
well 4+5=180°, 1+3=180°, that's 360, so I guess can't be determined since there's still another angle???
Step-by-step explanation:
idk, the answer choices could be wrong or im just wrong
answer correctly pls and i will give BL
Answer:
I would say 4 more miles than you each week
Step-by-step explanation:
Solve 6 + 1/4a = 3 for a.
Answer:
a= -12
Step-by-step explanation:
if i get this wrong i am suing brainly
Look at the table showing prices of different items at a grocery store.
Items for Sale
Watermelons
$14.97 for 3
Boxes of Cereal
$15.80 for 4
Bags of Pretzels
$10.77 for 3
Ice Cream
$18.36 for 4
Which items cost less than $3.99 per item?
A. boxes of cereal and bags of pretzels
B. ice cream and watermelons
C. bags of pretzels and watermelons
D. watermelons and boxes of cereal
Answer:
A
Step-by-step explanation:
It pretty easy, I just estimate and it should be fine
water melons is >4 (15/3=5)
cereal is <4 (16/4=4 but its 20 cents less so the greatest that could happen is a 2 cent or 5 cent off but either way It’s still less than 3.99)
Pretelzels is <4 (11/3=3 2/3 which is les than 3.99)
icecream is >4 (19/4=4.75)
Answer:
Boxes of ceral and bags of pretzels
Step-by-step explanation:
Does (2,2) make the inequality 5x+4y>20 true?
Answer:
No
Step-by-step explanation:
substitute the coordinates of the point into the left side of the inequality and check the value obtained against the right side.
5(2) + 4(2) = 10 + 8 = 18 < 20
then (2, 2 ) does not make the inequality true
Help pleasee due soon!! WIll give Brainliest
Answer:
9.7
Step-by-step explanation:
Answer:
[tex]\boxed {\boxed {\sf x \approx 9.7}}[/tex]
Step-by-step explanation:
This is a right triangle, which we know because of the square in the corner of the triangle. We can use the right triangle trigonometric ratios.
[tex]sin( \theta) =opposite/hypotenuse[/tex] and [tex]cos (\theta) = adjacent /hypotenuse[/tex] and [tex]tan (\theta)=opposite/adjacent[/tex]
First, identify each side of the triangle as adjacent, opposite, or hypotenuse, relative to the 68 degree angle.
The x is next to, or adjacent, to the angle. The 24 is opposite. We are not given the hypotenuse.
[tex]adjacent= x \\opposite= 24 \\hypotenuse= unknown[/tex]
Since we have the adjacent and opposite, we must use tangent.
[tex]tan (\theta)=\frac{opposite}{adjacent}[/tex]
Substitute the values in. The theta (θ) is the angle.
[tex]tan (68)=\frac{24} {x}[/tex]
Solve for x. One way is by cross multiplying.
[tex]\frac{tan(68)}{1}=\frac{24}{x}[/tex]
Multiply the 1st numerator by the 2nd denominator. Then, multiply the 1st denominator by the 2nd numerator.
[tex]tan (68)*x=1*24[/tex]
[tex]tan(68)*x=24[/tex]
Evaluate tan(68) using a calculator.
[tex]2.47508685*x=24[/tex]
Divide both sides of the equation by 2.47508685. This will isolate the variable x. ( We divide because multiplication is occurring between 2.47508685 and x, and division is the inverse of multiplication).
[tex]\frac{2.47508685*x}{2.47508685}=\frac{24}{2.47508685}[/tex]
[tex]x=\frac{24}{2.47508685}[/tex]
[tex]x=9.69662943[/tex]
Round to the nearest tenth. The 9 in the hundredth place tells us to round up. The 6 becomes a 7.
[tex]x \approx 9.7[/tex]
In this right triangle, x is equal to about 9.7
Question #2: What is the equation of the line in slope-intercept form?
Answer:
y = 1/2x + 4
Step-by-step explanation:
Find FH
FH = {Blank}
Answer:
22
Step-by-step explanation:
[tex]FH=8+14=22[/tex]
Answer:
FH = 22
Step-by-step explanation:
The equation will be,
→ FH = FG + GH
Then the value of FH will be,
→ FH = 8 + 14
→ [ FH = 22 ]
Hence, the value of FH is 22.
Henry wanted to collect 65 pounds of cans in 7 days. How much should he collect each day to reach his goal? Which two whole numbers does your answer lie between?
Find the value of “X”
Answer:
x = 27
Step-by-step explanation:
(3x - 17) + (x + 40) + (2x - 5) = 180
6x = 17 - 40 + 5 + 180
6x = 162
x = 27
Answer:
The value of x is 27°.
Step-by-step explanation:
Given that total angles inna triangle is 180°. In order to find the value of x, you have to add up all the expressiobs to form 180° :
(3x - 17)° + (x + 40)° + (2x - 5)° = 180°
6x + 18° = 180°
6x = 180° - 18°
6x = 162°
x = 162° ÷ 2
x = 27°
Pls help with a and b
Part a: The value of x such that the both lines are parallel to each other is (x = 12).
Part : The value of y such that the both lines are parallel to each other is (y = 108).
What is defined as the corresponding angles?Corresponding angles are generated when two parallel lines have been intersected by a transversal. The definition of corresponding angles states that when two parallel lines intersect with a third, the angles that take up the same relative position at every intersection are said to be corresponding angles to one another.In the given figure;
Part a: For making the lines w and t parallel to each other; their corresponding angles must be equal.
Thus,
4x + 60 = 9x
Solving;
9x - 4x = 60
5x = 60
x = 12
Thus, the value of x for which both lines w and t are parallel is 12.
Part b: For making the lines u and v parallel to each other; their corresponding angles must be equal.
Thus, 9x = y
Put x = 12.
y = 9×12
y = 108.
Thus, the value of y for which both lines u and v are parallel is 108.
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Asap answer plssss!, John can do a piece of work in 6 days. When he and Marsha work together, it takes only 4 days. How long will it take Marsha to do the work if she works alone? asap answer plssssss
Answer:
12 days
Step-by-step explanation:
Let the amount of work be x.
John:
6 days = x
1 day = [tex]\frac{1}{6}[/tex]x
Together:
4 days = x
1 day = [tex]\frac{1}{4}[/tex]x
Marsha:
1 day = [tex]\frac{1}{4}[/tex]x - [tex]\frac{1}{6}[/tex]x
= [tex]\frac{6}{24}[/tex]x - [tex]\frac{4}{24}[/tex]x
= [tex]\frac{2}{24}[/tex]x
= [tex]\frac{1}{12}[/tex]x
Marsha can do [tex]\frac{1}{12}[/tex] of the work in 1 day.
No. of days taken (Marsha) = x ÷ [tex]\frac{1}{12}[/tex]x
= 12
Jeremy bakes two pans of brownies that are the same size. One pan has nuts in it and the other pan does not. He cuts the pan with nuts into 8 equal pieces. He cuts the pan without nuts into 16 equal pieces. His friends eat 2 brownies with nuts and 3 brownies without nuts. Did they eat more of the brownies with nuts or without nuts?
Answer:
The answer is "[tex]\frac{2}{8} > \frac{3}{16}[/tex] So, they eat more brownies with nuts".
Step-by-step explanation:
In the given question, the two browny pans of equal size are baked by Jeremy. There is indeed a saucepan with nuts in it, not the other pan. He split the pot into eight equal chunks with nuts. He slices the pan into 16 equal parts without nuts. His mates eat 2 nuts brownies and three nut-free brownies. They eat more nuts and brownies [tex]\frac{2}{8} > \frac{3}{16}[/tex] eat more.
(3x+9)(5x-9) we need to put them in the box
Answer:
you put 3x and 9 on the left side of the box then you put 5x and 9 on the top of the box then you multiply 3x and 5x which is 8x and you put that in your first square... then you do the same its a pattern did i explained ok or good..
Step-by-step explanation: