Answer: Each piece would be 3/4 feet long
Step-by-step explanation:
If the piece of lumber is 2 1/4 ft long, and it is cut into 3 pieces then divide
2 1/4 by 3 to find out how long each piece of cut wood would be.
2 1/4 is the same as 9/4
[tex]\frac{9}{4} / \frac{3}{1}[/tex] = 9/12 which also simplifies to 3/4
evaluate (4x+1)(4x-1)when x=-3
Answer:
-24
Step-by-step explanation:
(4x + 1)(4x-1)
(4x-3 +1) (4x-3 +-1)
(-12+1) (-12 + -1)
-11 + -13
-24
Walter is planning a hiking trip and he estimated the gradient of trail to be 213.6 ft/mile. After hiking and tracking the trail, he found that the trail was actually 202.7 ft/mile. What was his percent error? Did he overestimate or underestimate the gradient?
Answer: His percent error = 5.38 %
He overestimated the gradient.
Step-by-step explanation:
Formula : [tex]Percent\ error =\dfrac{|Estimated\ value- Actual\ value|}{Actual\ value}\times100[/tex]
Given, Estimated gradient of trail = 213.6 ft/mile
Actual gradient of trail = 202.7 ft/mile
Since, 213.6 > 202.7 , that means he overestimated the gradient.
Percent error: [tex]\dfrac{|213.6-202.7|}{202.7}\times100[/tex]
[tex]=\dfrac{10.9}{202.7}\times100\\\\\approx5.38\%[/tex]
Hence, percent error = 5.38 %
please can someone help me solve the question in the picture 10 points plus brainliest!!!
Answer:
E. 2 1/2
E. 8.5 cm
C. 6 cm
Step-by-step explanation:
4............................
Scale factor = AE/AC = (4+6)/4 = 10/4 = 2.5
Correct option is E. 2 1/2
5............................
DE = ?
DE = √AD² - AE² = √15² - 10² = √125 = 5√3 ≈ 8.66For measure of AD see next question (6)Close option is E. 8.5 cm
6............................
AB = ?
AD/AB = 2.5 the scale factor as per question 4(AB + 9)/AB = 2.52.5*AB = AB + 91.5*AB = 9AB = 9/1.5AB = 6 cmCorrect option C. 6 cm
If 1/5 of the money in a cash box is 30 dollars, how much money is in the cash box?
Answer:
Money in the cash box is $150
Step-by-step explanation:
Let
x = money in the cash box
1/5 of the money in a cash box is 30 dollars
1/5 of x = $30
1/5 * x = 30
1/5x = 30
Divide both sides by 1/5
x = 30 ÷ 1/5
= 30 × 5/1
= 150/1
x = $150
Money in the cash box is $150
A^2+12a-7-3a^2-5a+8 what answer
Answer:
Step-by-step explanation:
a^2 + 12a - 7 - 3a^2 - 5a + 8
-2a^2 + 7a + 1
What is 8 ×4 - 3×7+9
8×4=32
3 × 7 = 21 +9 = 30
32 - 30 = 2
- Maya is playing golf. On her first two holes,
she scored one under par then six over par.
Find her score after the first two holes.
Answer:
Her score after the first two holes is 5 over par
Step-by-step explanation:
Calculating golf scores we have;
Maya's score on the first hole is one under par
Maya's score on the second hole is six over par
Therefore we have Maya's score after the first two holes is given as follows;
She took one less than her allotted shot for the first score and 6 more than her allotted shot for the second hole
Her gross score is 1 under par + 6 over par = 5 over par
Therefore, her score after the first two holes is 5 over par
Answer:
5 holes over par
Step-by-step explanation:
4x + 1 + x = -4
Can anybody help me solve this ?
Answer:
Simplify the equation
Step-by-step explanation:
4x + 1 + x + -4
= 4x + x + 1 - 4
= 5x + -3
= 5x - 3
Hope this helps
Answer:
X=-5/3 or X=-1 2/3 or X=-1.66
Step-by-step explanation:
Combine like terms:
4x+1+x=-4
-x -x
3x+1=-4
-1 -1
3x=-5
Divide by 3:
3x/3=-5/3
X=-5/3
X=-1 2/3
X=-1.66
The perimeter of a triangle is 137 cm. If the three sides of the triangle are (x + 7) cm, (2x – 5) cm, and (3x – 3) cm, what is the length of each side?
Answer:30,41,66
Step-by-step explanation:
(X+7)+(2x-5)+(3x-3)=137
Solve for x
X=23 cm
Sides are 23+7=30
2*23-5=41
3*23-3=66
NEED HELP ASAP MARK YOU BRAINLIEST what is 30+35+30=
Answer:
95
Step-by-step explanation:
30+30 is 60
60+35 is 95
Another way to do this is to use multiplication then add. (30x2=60)
Hope I helped!
95!
30+35=65
65+30=95
It helps to break up the problem.
-14 = -8m + 2
please help!
23
Justin started the race at 3:25 p.m. Justin finished the race at 8:50 p.m. How long did it take Justin to run the race?
OA. 5 hours and 25 minutes
B. 5 hours and 35 minutes
OC. 3 hours and 25 minutes
OD. 6 hours and 25 minutes
Answer:
A. 5 hours and 25 minutes
Step-by-step explanation:
8 - 3 = 5
50 - 25 = 25
8:50 pm - 3:25 pm = 5:25
A. 5 hours and 25 minutes
1.
Social Security and Medicare taxes are amounts employees can opt in or out of
paying each pay period.
O True
O False
In an algebraic expression what is the product of 15 and c
Answer:
15c
Step-by-step explanation:
15 multiplyed by c gives 15c
In an algebraic expression, the product of 15 and c can be represented as 15c.
The term "product" refers to the result of multiplying two or more numbers or variables together. In this case, we are multiplying the number 15 by the variable c.
The expression 15c represents 15 multiplied by the value of c. It can be thought of as 15 times an unknown value represented by c. The variable c can represent any real number or algebraic expression, depending on the context of the problem or equation.
For example, if c is equal to 2, then the product 15c would be equal to 15 multiplied by 2, resulting in 30. Similarly, if c is equal to -3, then the product would be -45 since multiplying 15 by -3 gives -45.
To learn more about the expression;
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(-8)-6+(-5) help ima stuck
Answer: -19
Step-by-step explanation:
-8 -6 = -14
-14 - 5 = -19
Answer:
-19
Step-by-step explanation:
(-8)-6+(-5)
-14+(-5)
-19
Let F_1 = (10,2) and F_ 2= (-16,2). Then the set of points P such that |PF_1 - PF_2| = 24 form a hyperbola. The equation of this hyperbola can be written as ((x-h)^2)/a^2-((y-k)^2)/b^2=1 Find h + k + a + b.
Answer:
123
Step-by-step explanation:
-5(4x-2) = -2(3+6x)
what is the answer and how do you get it
Answer:
x = 2
Step-by-step explanation:
-5(4x - 2) = -2(3 + 6x)
-20x + 10 = -6 - 12x Distribute -5 to 4x and -2 and distribute -2 to 3 and
6x
10 = -6 + 8x Add 20x to both sides
16 = 8x Add 6 to both sides
2 = x Divide 8 to both sides
Answer:
-0.5
Step-by-step explanation:
-5(4x-2) = -2(3+6x)
-20x-10 = -6-12x
-10 = -6+8x
-4 = 8x
-0.5 = x
If 4 times a number is added to -8 the result is equal to 12 times the number
Answer:
-1
Step-by-step explanation:
let 'x' be the unknown number
4x+(-8)=12x
4x-8 =12x
-8=12x-4x
-8=8x
-8=8x
8 8
x=-1
hope it helps ❤❤❤
For any question comment me
Which statement describes the effect on the parabola f(x) = 2x2 – 5x + 3 when it is changed to f (x) = 2x2 – 5x + 1?
A. The parabola is translated up 1 unit
B. The parabola is translated up 2 units.
O C. The parabola is translated down l unit.
OD. The parabola is translated down 2 units.
Answer:B
Step-by-step explanation:
The parabola f(x) = 2x² - 5x + 1 has been D. The parabola is translated down 2 units.
What is a quadratic equaton?A quadratic equation is an algebraic expression in the form of variables and constants.
A quadratic equation has two roots as it's degree is two.
We know the graph of a quadratic equation ax² + bx + c is a parabola that opens upwards and is symmetrical about the y-axis.
Given, a parabola f(x) = 2x² - 5x + 3.
Now it is changed to f(x) = 2x² - 5x + 1 which also can be written as,
f(x) = 2x² - 5x + 3 - 2, So it has been translated 2 units down along the y-axis.
learn more about quadratic equations here :
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Two consecutive even integers add up to 1594. what are the two numbers?
Answer:
Hey there!
Consecutive integers mean that the numbers are next to each other.
Consecutive even integers mean that the numbers are separated by a number between them.
Thus, if x is the smaller number, x+2 can be used to write the larger number.
x+x+2=1594
2x+2=1594
2x=1592
x=796.
The two numbers are 796 and 798.
Let me know if this helps :)
if 12 boxes of soap weigh 2.4 kg what will be the weight of 8 boxes of the same kind of soap
Answer:
1.6kg
explanation:
2.4kg = 12 boxes of the soap
0.8kg = 4 boxes of the soap
1.6kg = 8 boxes of the soap
A scale drawing of a school bus has a scale of 1 inch to 5 feet. If the length of the school bus is 6 inches on the scale drawing, what is the actual length of the bus? Explain or show your reasoning. *
Answer: 30 Feet
Step-by-step explanation:
In Technical drawings scales are used to reduce the size ( scaling ) of drawings so they fit in our drawing sheets. in this example above the drawer stated that 1inch was representing 5feet. what this means is that because we can’t get a drawing sheet which would be 40-100 feet wide we need to rescale our drawing to fit into the available sheet. So by saying 1inch equals 5feet this means the school bus is 30Feet in length.
What is the value of x?
Answer:
x = 58
Step-by-step explanation:
Angle = 1/2(difference of intercepted arcs)
51 = 1/2 ( 160 -x)
Multiply each side by 2
2*51 = 160-x
102 = 160-x
Subtract 160
102 -160 = -x
-58 = -x
58 =x
Enter 4 3/8 as a decimal
You want to share a one kilogram gold bar with your friends. How many friends can you give one gram to, if you divide up the gold bar? You want to share a one kilogram gold bar with your friends. How many friends can you give one gram to, if you divide up the gold bar? 1. 1,000 2. 10 3.10,000 4. 100
Answer:
1,000 friends will get 1 gram of gold bar each from 1 kilogram of gold bar
Step-by-step explanation:
1 kilogram of gold bar = 1,000 grams of gold bar
You have 1 kilogram of gold bar
You want each of your friends to get 1 gram
Number of friends that will get 1 gram of gold bar each = 1 kilogram of gold bar / 1 gram
= 1000 gram / 1 gram
= 1,000
Number of friends that will get 1 gram of gold bar each = 1,000 friends
if 9/24 = 3/x then x is
Answer:
8
Step-by-step explanation:
Answer: 3/8
Step-by-step explanation: 9÷3=3 then 24÷3=8
What is 5,759/999 simplified?
Answer:
it can't be simplified, but 5,759/999 as a fraction is 5.764764765. hope this helps
Step-by-step explanation:
Evaluate: 5c + 7d - 5 for c = -2 and d=3
5c+7d-5
c=-2 so 5x is 5x-2.
5x-2=-10
d=3 so 7d is 7x3.
7x3=21
-10+21-5
-10+21=11
11-5=6
The answer is 6
hope it helps!
Answer:
Step-by-step explanation:
5(-2) + 7(3) - 5
-10 + 21 - 5
11 - 5 = 6
The scale of this map is 1 inch = 50 miles. How many miles is Mackinac Bridge from Milwaukee? The distance on the map between the two is 4 inches. 34 187 200 147
Answer: 200 is the answer hope this helps
Step-by-step explanation:
URGENT!!! Pls HELP
When dividing fractions that are represented in same terms, their quotient is simply the quotient of their numerators.
Write an equation that demonstrates this.
Answer: see below
Step-by-step explanation:
The result is the quotient of the numerators because the denominators cancel out.
[tex]\text{Consider}\ \dfrac{2}{7}\div \dfrac{3}{7}\\\\\\=\dfrac{2}{7}\times \dfrac{7}{3}\\\\\\\text{Cross-cancel the 7's:}\\=\dfrac{2}{3}[/tex]
9 1/10
Step-by-step explanation:
2 3/5 / 2/7 = 13/5 x 7/2 = 91/10 = 9 1/10