You charge $2 per square yard to paint.Which equation can you solve to find the amount you will charge to paint a triangular wall with a base of 4 yards and a height of 6 yards?
Answer:
D- 2•(1/2•4•6)=x
Step-by-step explanation:
Given : The charge of painting = $2 per square yard
Let x be the total cost of painting the triangular wall .
The base of the triangular wall = 4 yards
The height of the triangular wall = 6 yards
We know that the area of the triangle =
Thus, the area of the triangular wall =
Now, the total cost of painting the triangular wall =
Hence, the total cost of painting the triangular wall
Find the sum and difference of 17-(-49)= and -31+(-45)= and -55+37= and -25-(-25)=
Answer:
Step-by-step explanation:
Interpreting as: -31+(-45)
Input:
-31 - 45
Result:
-76
Number line:
Number line
Number name:
negative seventy-six
Manipulatives illustration:
- | | - | | = | - |
| 31 | | 45 | | | 76
Find the value of x. Please help :(
Answer:
x = 65
Step-by-step explanation:
Answer:
x=20
Step-by-step explanation:
80+30+70=180, so 70+x = 90 so x =20
The stock of Company A gained 4% today to $4.16. What was the opening price of the stock in the beginning of the day?
Answer:
The opening price of the stock in the beginning of the day was $4.
Step-by-step explanation:
To be able to calculate the price of the stock at the beginning of the day, you have to consider that the equation to calculate the final price is equal to the opening price multiply for the result of one plus the increase or decrease percentage, which is:
final price=opening price*(1+0.04)
Now, you know that the final price is $4.16, so you can replace this value in the formula and solve for the opening price:
4.16=opening price*1.04
opening price=4.16/1.04
opening price=4
According to this, the answer is that the opening price of the stock in the beginning of the day was $4.
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Answer:
1st box is 200
2nd box is 8
Step-by-step explanation:
add 4 1/7+5 3/7+2/7.
Answer:
9 6/7 is the answer
For the rhombus below, find the measure of 1, 2, 3, and 4.
Answer:
Angle 1 is 51, Angle 2 is 51, Angle 3 equal 39, Angle 4 is 51
Step-by-step explanation:
A rhombus diagonals are perpendicular so all the angles in the middle of the rhombus measure is 90 degrees. So this means we are dealing with 4 right congruent triangles.
Since a rhombus is a paralleogram, it opposite sides are parallel. Since there is a line that it cuts through the parallel line, Angle 3 and 39 are alternate interior angles.
Alt. interior angles are congruent so Angle 3=39.
In the upper left triangle, angle 3 ,angle 4, and the middle angle form 180 degrees since it a triangle. The middle angle measure 90 degrees. so we can find angle 4.
[tex]39 + 90 + x = 180[/tex]
[tex]129 + x = 180[/tex]
[tex]x = 51[/tex]
so angle 4=51.
Angle 4 and Angle 1 are alt. interior angles so that means Angle 1 also equal 51.
Rhombus also has angle bisectors to angle 1=angle 2.
Angle 2=51.
The cost of levelling a rectangular field at
50 per square metre is 30,000. If its length
and breadth are in the ratio of 3: 2, then find
its perimeter. pls help
Answer:
The perimeter of a rectangular field is 100 meters
Step-by-step explanation:
The given data of the rectangular field are;
The unit cost of levelling the rectangular field, U[tex]_c[/tex] = 50/m²
The total cost of levelling the field, T[tex]_c[/tex] = 30,000
The length to breadth ratio of the field, L:B = 3:2
Where;
L = The length of the field
B= The breadth of the field
From the given data of the field, we have;
The area of the field, A = T[tex]_c[/tex]/U[tex]_c[/tex]
∴ A = 30,000/(50/m²) = 600 m²
The area of the field, A = 600 m²
The formula for the area of a rectangle, A = Length, L × Breadth, B
A = L × B
We are given that the length to breadth ratio of the field, L:B = 3:2
∴ L/B = 3/2
L = (3/2) × B
The area of the rectangular field, A = L × B
∴ The area of the rectangular field, A = (3/2) × B × B = (3/2) × B²
A = (3/2) × B²
From the calculation for the cost of levelling the field, we have, A = 600 m²
∴ A = (3/2) × B²
A = 600 m²
By transitive property, we have;
(3/2) × B² = 600 m²
B² = (2/3) × 600 m² = 400 m²
B = √(400 m²) = 20 m
The breadth of the field, B = 20 m
From L = (3/2) × B, we have;
L = (3/2) × B
∴ L = (3/2) × 20 m = 30 m
∴ The length of the field, L = 30 m
The perimeter, 'P', of a rectangle given the length, 'L' and breadth, 'B', is given as follows;
The perimeter of a rectangle, P = 2·L + 2·B
Therefore, for the rectangular field, we have;
P = 2 × 30 m + 2 × 20 m = 60 m + 40 m = 100 m
The perimeter of a rectangular field, P = 100 m.
Paul is buying packages of hot dogs for a camping trip. Each package is 30 oz. If he buys 4 packages, how many ounces of hot dogs is he buying?
Answer:
120
Step-by-step explanation:
multipy 30 by 4 and you should get 120.
You can even do 30+30+30+30 and it will also add up to 120.
Bob earns $2900 per month. 15% of his salary is deducted for his car loan. Which operation do I use?
Answer:
Results are below.
Step-by-step explanation:
Giving the following information:
Bob earns $2900 per month. 15% of his salary is deducted for his car loan.
First, we need to calculate the deduction for the car:
Deduction= 2,900*0.15
Deduction= $435
Now, the monthly salary that remains for Bob:
Montlhy salary= 2,900 - 435
Monthly salary= $2,465
Help me please will mark
Answer:
1. A = 64 cm²
2. A = 240 yd²
3. A = 220.5 cm²
4. A = 193.4 m²
Step-by-step explanation:
1. We want to split this figure into two rectangles. We know the top figure is a rectangle because a rectangle has four right angles. For the bottom rectangle, because the sides are all perpendicular, all of the angles are also right angles.
Because they're rectangles, opposite sides are congruent. So now you can find the measures of the sides.
Refer to the image below for the rest.
Don't forget to add up the two areas for the total area of the whole figure.
2. We want to split this figure into a triangle and a rectangle.
Because the bottom figure has four right angles, we know that it's a rectangle. Therefore, its side measures are 24, 24, 8, and 8 because opposite sides of a rectangle are congruent.
For the triangle, because the sum of the triangle's base and two other segments is 24, we can use 24 - (6 + 6) = base. So the triangle base is 12.
Do this same thing to find the height of the triangle.
Refer to the image below for the rest.
Don't forget to add up the two areas for the total area of the whole figure.
3. We want to split this figure into a triangle and semicircle.
We're already given that the height is 15 and part of the base is 8, but there is no way to assume that the other part of the base is also 8. Remember, it's not to scale.
We know that this is a semicircle because there is a diameter present (a segment that intersects the center of the circle). This means that all radii of the circle are congruent, so the two radii present are both 8.
Because of Reflexive Property, the other part of the triangle base is now proven to also be 8.
Refer to the image below for the rest.
Don't forget to add up the two areas for the total area of the whole figure.
4. We want to split this figure into a rectangle and semicircle.
For the rectangle, because the sides are all perpendicular, all of the angles are also right angles. So we can prove that it is a rectangle.
Because this is a rectangle, opposite sides are congruent. So we have the sides of 15, 7, 15, and 7.
We know that this is a semicircle because there is a diameter present (a segment that intersects the center of the circle). This means that all radii of the circle are congruent.
Because of Reflexive Property, we know that the diameter of the circle is 15. The radius is half the diameter, meaning all radii are 1/2 (15), or 7.5.
Refer to the image below for the rest.
Don't forget to add up the two areas for the total area of the whole figure.
classify the following triangle as acute obtuse or right
Evaluate the expression for
b = -6.
3b =
Answer:
-18
Step-by-step explanation:
Hope that helps
You do 3(-6) to get neg 18
Answer:
-18
Step-by-step explanation:
-6 x 3 = - 18.
What value from the set { 1/2, 1/4, 6/4, 10/3 } is a value of x that will make the equation 3/5 ÷ x = 12/5 true?
Answer:
1/4
Step-by-step explanation:
[tex] \frac{3}5 \div x = \frac{12}{5} \\ \\ \frac{3}{5 } \times \frac{1}{x} = \frac{12}{5} \\ \\ \frac{3}{5x} = \frac{12}{5} \\ \\ x = \frac{3 \times 5}{12 \times 5} \\ \\ x = \frac{1}{4} [/tex]
The graph shows the locations of point C and point D. Point E is graphed at (n, 2).
The distance from point D to point E is equal to the distance from point D to point C.
What is the distance from point D to point E? What is the value of n? Enter your answers in the boxes.
Answer:
4,n=4
Step-by-step explanation:
D=(n,-2) and E=(n,2)
the distance from D to E ,
√{(n-n)^2+(-2-2)^2}=√16=4
the co-ordinate of point C=(0,-2)
given,DC=DE
→√{(n-0)^2+(-2+2)^2}=√16
→n^2=16
therefore,n=4
2. A rocket is shot upward with an initial velocity of 40 feet per second. Its height above the ground after t seconds is given by h= 40t - 16t?. What is its maximum height? When will it retum to earth?
Answer:
24Step-by-step explanation:
All you have to do is subtract....
Ask yourself hmmm... what is 40t - 16t. 40-16 24tAnd there you have it as your answer have a nice day!
The maximum height the will rocket achieve is 21.76 feet and the time taken to return to the earth is 8/5 seconds.
What is velocity?Velocity is the rate of distance covered per time. Velocity could be average or instantaneous.
Average velocity can be given as;
Average velocity = total distance / total time taken
As per the given,
Velocity v = 40 feet/second
Height at time t as,
h = 40t - 16t²
Since, velocity = distance /time
dh/dt = velocity
dh/dt = 40 - 2 x 16 = 40 - 32t
v = 40 - 32t
At maximum height velocity will be zero,
40 - 32t = 0
32t = 40
t = 32/40 = 4/5 seconds
Maximum height = 40(4/5) - 16(4/5)²
Maximum height = 32 - 10.24 = 21.76 feet per second
Time taken = 2 x 4/5 = 8/5 seconds
Hence "The maximum height will rocket achieve is 21.76 feet and the time taken to return to the earth is 8/5 seconds".
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Unit 8 homework 4 Trigonometry: Ratios & Finding Missing Sides
Answer:
Step-by-step explanation:
2. Tan 48=x/17
X=17 tan 48
X=18.9
3. Sin 67=x/29
29 sin 67=x
X=26.7
4. Sin29= 12/x
Xsin29/sin29 =12/sin29
X=24.8
5. Cos16 =x/37
X=37cos16
X=35.6
6. Tan 58 =22/x
X=22/tan58
X=13.7
7. Tan 51= X/15
15 tan 51=x
X=18.5
8. Cos37=48/x
X=48/ cos37
X=60.1
9. Sin24=x/9
9sin 24=x
X=3.7
Answer:
Step-by-step explanation:
2. Tan 48=x/17
X=17 tan 48
X=18.9
3. Sin 67=x/29
29 sin 67=x
X=26.7
4. Sin29= 12/x
Xsin29/sin29 =12/sin29
X=24.8
5. Cos16 =x/37
X=37cos16
X=35.6
6. Tan 58 =22/x
X=22/tan58
X=13.7
7. Tan 51= X/15
15 tan 51=x
X=18.5
8. Cos37=48/x
X=48/ cos37
X=60.1
9. Sin24=x/9
9sin 24=x
X=3.7
Is x=10 a solution to this equation? 3x2 = 900
.
Simplify the expression. (–5g5h6)2(g4h2)4
A. 25g26h20
B. –25g26h20
C. 25g15h14
Answer:
Step-by-step explanation:
(–5g^5 h^6)^2 × (g^4 h^2)^4 the ^ carot symbol means raised to power X
(25 g^10 h^12) × (g^16 h^8) exponents raised to powers MULTIPLY
-5² = 25 g^5² = g^10 h^6² = h^12 do the same thing with (g^4 h^2)^4
25 g^(10+16) h^(12+8) collecting terms powers ADD
25 g^26 h^20 Which letter is the answer?
Did you follow my explaination?
Answer:
B. –25g26h20
Step-by-step explanation:
find the vertex of y=-5x^2+10x+3
Answer: (h,k) (-1, -8)
Step-by-step explanation:
Answer:
The vertex will be (1,8)
Step-by-step explanation:
hope it helps have a great day!!!
The price, s, of a mountain bike at Speed Cycling is $210 less than twice the price, d, of the same bike at Downhill Racing. The difference in price between the bike at Speed Cycling and Downhill Racing is $320. Which system of equations can be used to determine the price of the bike at each store?
A.
2s - d = 210
s - d = -320
B.
s - 2d = -210
s - d = -320
C.
2s - 2d = 210
s + d = 320
D.
s - 2d = -210
s - d = 320
Answer:
a
Step-by-step explanation:
hope this helps!! please mark brainliest
Change the fraction to a whole number or mixed number:
20/2 = _____
The fraction [tex]\frac{20}{2}[/tex] is 10 as a whole number.
A fraction is a mathematical expression that represents a part or a division of a whole. It is used to represent numbers that are not whole numbers or integers. A fraction consists of two components:
1. Numerator: The numerator is the number on the top of the fraction. It represents the quantity or part of the whole being considered.
2. Denominator: The denominator is the number at the bottom of the fraction. It represents the total number of equal parts into which the whole is divided.
Given the fraction [tex]\frac{20}{2}[/tex],
divide numerator and denominator by 2,
[tex]\frac{20\div 2}{2\div 2}[/tex] = [tex]\frac{10}{1}[/tex] = 10.
So, [tex]\frac{20}{2}[/tex] = 10
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Suppose that 28% of domestic adoptions are transracial, and that 84% of international adoptions are
transracial in the US. A social worker takes a SRS of 200 US adoptions, and in that sample, there are 160
domestic adoptions and 40 International adoptions. The social worker will then look at the difference
(1 - D) between the proportions of transracial adoptions in each sample,
What will be the shape of the sampling distribution of the difference in sample proportions, and why?
Choose 1 answer:
Approximately normal, because we expect 11,2 transpacial and 28.8 non-transracial domestic
adoption, and 134.4 and 25.6 international adoptions, and all of these counts are at least 10,
Approximately normal, because we expect 56 transracial and 144 non-transracial domestic
adoption, and 134.4 and 25.6 international adoptions, and all of these counts are at least 10,
Not normal, because we expect fewer than 10 non transradal international adoptions.
Not normal, because we expect fewer than 10 transracial domestic adoptions,
Answer: C
Not normal, because we expect fewer than 10 non-transracial international adoptions.
Step-by-step explanation: Khan Answer
1 - .84 = .16 So an estimated 16% of international adoptions will be non-transracial. In a sample size of 40 international adoptions only 6.4 will be non-transracial because .16 * 40 = 6.4 and 6.4 is less than 10, so we can not assume normality.
Not normal, because we expect fewer than 10 non-transracial international adoptions.
What is domestic adoptation?A Domestic Infant Adoption is the adoption of a baby born within the United States by a family that lives in the United States
1 - .84 = .16 So an estimated 16% of international adoptions will be non-transracial. In a sample size of 40 international adoptions only 6.4 will be non-transracial because .16 * 40 = 6.4 and 6.4 is less than 10, so we can not assume normality.
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At approximately what value of x do the two lines meet?
Answer:
x = 3
Step-by-step explanation:
The 2 lines intersect at (3, - 2 ) with x = 3
Hellooo can someone help me :)
Step-by-step explanation:
You will need the hypotnuse. to find that use a squared plus b squared is c squared
Katy and her sister started watching a cartoon movie at 11:00 A.M. The movie was 2 hours and 15 minutes long. After the movie, they played a card game for 45 minutes and then played soccer in the backyard for 1 hour and 45 minutes. What time was it when Katy and her sister finished playing soccer?
Reward:Brainliest
Include A.M. or P.M. in your answer (for example, 11:58 A.M.).
Answer:
15:00 PM and 3:00 PM ,they mean the same exact thing
Step-by-step explanation:
The price of an Item has risen to $108 today. Yesterday it was $80. Find the percentage increase.
Answer:
74%
Step-by-step explanation:
please help i need the answer asap :) !!
Answer:
6^(2/3)
Step-by-step explanation:
exponent fraction rule
Answer:
the first one, 6^2/3
Step-by-step explanation:
Find the value of y
A. 65
B. 70
C. 35
Answer: 35
Step-by-step explanation:
Assuming the triangles are congruent, then by CPCTC,
[tex]65=2y-5\\\\70=2y\\ \\ y=35[/tex]
Enter the equation of the circle described below.
Center (3, -2), radius = 5
Answer:
[tex](x-3)^{2} +(y+2)^{2} =5^{2}[/tex]
Step-by-step explanation:
The equation of the circle with center A=(a,b) and radius = r are:
[tex](x-a)^{2}+(y-b)^{2} =r^{2}[/tex]
When A=(3,-2) and radius=r=-5
[tex](x-3)^{2} +(y+2)^{2} =5^{2}[/tex]