Please I need somone's help with this problem
Answer:
wich problem i see multiple ?
Answer please
The figure below shows a quadrilateral ABCD. Sides AB and DC are congruent and parallel:
A quadrilateral ABCD is shown with the opposite sides AB and DC shown parallel and equal.
A student wrote the following sentences to prove that quadrilateral ABCD is a parallelogram:
Side AB is parallel to side DC, so the alternate interior angles, angle ABD and angle CDB, are congruent. Side AB is equal to side DC, and DB is the side common to triangles ABD and BCD. Therefore, the triangles ABD and CDB are congruent by SSS postulate. By CPCTC, angles DBC and BDA are congruent and sides AD and BC are congruent. Angle DBC and angle BDA form a pair of alternate interior angles. Therefore, AD is congruent and parallel to BC. Quadrilateral ABCD is a parallelogram because its opposite sides are equal and parallel.
Which statement best describes a flaw in the student's proof?
Question 11 options:
Angle DBC and angle BDA form a pair of vertical angles, not a pair of alternate interior angles, which are congruent.
Triangles ABD and CDB are congruent by the SAS postulate instead of the SSS postulate.
Triangles ABD and BCD are congruent by the AAS postulate instead of the SSS postulate.
Angle DBC and angle BDA form a pair of corresponding angles, not a pair of alternate interior angles, which are congruent.
Answer:
B. Triangles ABD and CDB are congruent by the SAS postulate instead of the SSS postulate.Step-by-step explanation:
Angle DBC and angle BDA form a pair of vertical angles, not a pair of alternate interior angles, which are congruent.
Incorrect, since mentioned angles form a pair of alternate interior angles.Triangles ABD and CDB are congruent by the SAS postulate instead of the SSS postulate.
Correct, since AB = CD, BD = DB, ∠ABD ≅ ∠CDBTriangles ABD and BCD are congruent by the AAS postulate instead of the SSS postulate.
Incorrect, since not enough evidence for AASAngle DBC and angle BDA form a pair of corresponding angles, not a pair of alternate interior angles, which are congruent.
Incorrect, since DBC and BDA are not corresponding according to definition of corresponding anglesSelect from the drop-down menus to correctly complete the statement. The expressions 2.72−2 and 10.6÷2−0.1 should be joined by Choose... to form an Choose... .
Answer: #1 is " a not equals sign. " #2 is " inequality ".
Step-by-step explanation: i took the quiz and got it wrong but looked at my answers so here ya go.
Answer:
1# not an equals sign 2# inequality
Step-by-step explanation:
107092374100x123727985198
the answer is 1.32503237E+22
Step-by-step explanation:
I hope this help
HELP PLEASE IM BEING TIMED:
what happens to the decimal when you multiply a whole number by 100
Answer:
it moves to the right 2 places (units)
Step-by-step explanation:
ex
500.*100
50000.
What is the equation of the line?
Answer:
y=-7
Step-by-step explanation:
This is an expression, not an equation. y is -7 for any value of x, so f drops out of the equation and it beomes an expression.
0.19 is 5% of what number.
Answer:
3.8
Step-by-step explanation:
5% times 20 is 100% and that is the number we are trying to find so of we multiply .19 by 20 we should get 3.8 wich is promotional to the 100%
what is the solution set to 2|x+5|-3=1
Answer:
x = -7 or -3
Step-by-step explanation:
A toy store is selling a toy robot for $12. At the end of the week, the store has earned $792 from selling the robots.
How many robots did the toy store sell?
Answer:
66 robots
Step-by-step explanation:
So they are telling you to DIVIDE the amount of dollars earned to the price of the toy robots.
> 792 / 12 = ?
> 79 - 72 = 7 ( sis 12s goes into 79 )
> 72 - 72 = 0 ( six 12s goes into 72 evenly )
> 792 / 12 = 66
So the store has selled 66 toy robots & earned a profit of $792.
Determine whether each expression is equivalent to 64^5t^2 + 3t
Answer:
ALL of the following expressions are NOT equivalent to 64^5t^2+3t
Step-By-Step Explanation:
Khan Academy
To determine whether each expression is equivalent to [tex]64^5t^2 + 3t[/tex], we will simplify each expression by evaluating the calculations.
Expression 1: [tex]64^5t^2 + 3t[/tex]
Expression 2: [tex](4^3)^5t^2 + 3t = 4^(3*5)t^2 + 3t = 4^15t^2 + 3t[/tex]
Expression 3: [tex](8^2)^5t^2 + 3t = 8^(2*5)t^2 + 3t = 8^10t^2 + 3t[/tex]
Expression 4: [tex](2^6)^5t^2 + 3t = 2^(6*5)t^2 + 3t = 2^30t^2 + 3t[/tex]
Expression 5: [tex](8^8)^3t^2 + 3t = 8^(8*3)t^2 + 3t = 8^24t^2 + 3t[/tex]
Expression 6: [tex]64^5t^2 + t + 2t = 64^5t^2 + 3t[/tex]
After evaluating each expression, we can see that all the expressions are equivalent to [tex]64^5t^2 + 3t[/tex]. The calculations show that regardless of the specific values used, the expressions simplify to the same result. Therefore, it can be concluded that all six expressions are equivalent to [tex]64^5t^2 + 3t.[/tex]
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Solve the following inequality then plot the answers on the number line 2x-1>3
Also where do I plot the answer
Hi,
2x - 1 > 3
2x -1 + 1 > 3 + 1
2x > 4
2x / 2 > 4 / 2
x > 2
You have to highlight all the part after 2, and the number 2 should NOT be included, only the part of the line after 2 should be highlighted (until 11 )
I NEED HELP what is the slope intercept form of y+6=4/5(x+3)
Answer:
y=4/5+3 and 3/5
Step-by-step explanation:
Please this is my third time asking this question please answer it
I really need it now
1,3,5,7 = 126°
2,4,6,8 = 54°
Here your go m'dear
Given, ∠3 = 126°.
∠3 =∠1 = 126° (vertically opp. angles)
∠3 =∠5 = 126° (alternate interior angles)
∠3 =∠7 = 126° (corresponding angles)
Now, ∠2 = 180° - 126° = 54° (linear pair/supplementary angles)
∠2 = ∠4 = 54° (vertically opp. angles)
∠2 = ∠8 = 54° (alternate interior angles)
∠8 = ∠6 = 54° (vertically opp. angles)
_________
꧁✿ ᴿᴬᴵᴺᴮᴼᵂˢᴬᴸᵀ2222 ✬꧂
Please help me with this math problem!! :)
Answer:
x= 4
(not sure about a, sorry friend)
Step-by-step explanation:
Since the shape is congruent with the other sides it's the same.
Factor the expression
49x^5 - 63x^3
Answer:
7x³(7x² - 9)
Step-by-step explanation:
Hope this helps!
Answer:
[tex]7x^3(7x^2-9 )[/tex]
Step-by-step explanation:
To factor, you have to find the GCF of 49 and 63 and the GCF of [tex]x^{5}[/tex] and [tex]x^3[/tex]
Factor 49: 1,7, and 49
Factor 63: 1, 3, 7, 9, 21, 63
Factor [tex]x^{5}[/tex]: [tex]x*x*x*x*x[/tex]
Factor [tex]x^3[/tex]: [tex]x*x*x[/tex]
So the GCF of 49 and 63 is 7
The GCF of [tex]x^{5}[/tex] and [tex]x^{3}[/tex] is [tex]x^3[/tex]
We multiply 7 by [tex]x^{3}[/tex] to get [tex]7x^3[/tex]
So now we start to factor out the GCF of [tex]49x^5-63x^3[/tex]
[tex]7x^3(\frac{49x^5}{7x^3}+ \frac{63x^3}{7x^3} )[/tex]
[tex]\frac{49}{7} =7\\x^5-x^3=x^2[/tex]
[tex]\frac{63}{7} =9\\x^3-x^3=x^0[/tex] because [tex]x^{0}[/tex] can't be written as an exponent we don't write [tex]9x^0[/tex]
When we factor we get [tex]7x^3(7x^2-9 )[/tex]
6. Find the perimeter (distance around) each of the foundations in Figure1 and 2.
a. Foundation A perimeter=_________feet
b. Foundation B perimeter=_________feet
Answer:
(a) P = 32.5 feet
(b) P = 108-2x feet
Step-by-step explanation:
Note: Perimeter is the total distance around the border of a shape.
(a)
P = 14' + 27'' + 14' +27'' ; First we have to covert the 27'' (27 inches to feet)
[tex]27*\frac{1}{12} = \frac{27}{12} =\frac{9}{4}[/tex] = 2.25feet
P = 14'+2.25'+14'+2.25'
P = 32.5' = 32.5 feet
(b)
P = 15'+29'+(15'-x')+3'+7'+3'+(7'-x')+29' ; where x is the overlapping distance of the 2 rectangles of Foundation B.
P = 108' -2x'
P = 108-2x feet
Note: there is not enough information to determine the vaule of x from the problem.
Calculate the density of a metal cube which has 3 cm sides, given that its mass is 428 grams. Convert your answer into kg/m3. Will this cube float on the surface of a liquid of density 1.7 g/cm3? Explain why or why not.
Answer:
Step-by-step explanation:
Volume of the cube is 27 cm^3
Since [tex]density = \dfrac{Mass}{Volume}[/tex]
density = [tex]\dfrac{428 g}{27 cm^3} = 15.85 g/cm^3 > 1.7g/cm^3[/tex]
this will not float on the surface of the liquid.
Convert into kg/m^3
[tex]15.85 g/cm^3 = 15850 kg/m^3[/tex]
I am very much confused..
Answer:
See below:
Step-by-step explanation:
(Apologies for the other answer, the moderation team is looking at it.)
So, we can solve this problem by taking 2 steps, Solving and Unit Value.
We'll start off with finding the unit value for 1 cm and how many Newtons we get per one cm.
We can solve for that by dividing both sides by 20 to find the Unit Value.
[tex]\frac{20}{20}=1\\\frac{28}{20}=1.4\\[/tex]
Upon solving, we know that 1.4 is for one unit price. We can then figure out the other blanks by solving it, which we will be doing next.
Solving
To find the first value, we know that the ratio for [tex]I:O[/tex] with I being Input and O being output is 1.4. We know that because in the unit section, we figured the rate out.
We can now use that to find the Newtons, to do that, we must multiply 55 by 1.4.
[tex]55*1.4=77[/tex]
We have found out our first blank which is 77.
We can solve for 140 by dividing it by 1.4 because to get 1 Newton we divide by 1.4 on this table and to get the opposite we have to do the opposite of multiplying; dividing.
We divide 140 by 1.4 and we get 10.
[tex]\frac{140}{1.4}[/tex] = 100
To solve for one, we did that in the beginning, and that would be 1.4
Cheers!
Uno de estos globos se encontraba a 250 metros de altura cuando se
desactivó su mecanismo (
re caliente
A partir de ese momento, el globo comenzó a descender 4 metros de
altura (-4 m) por cada segundo.
¿Cuál de las siguientes expresiones corresponde a la altura, en metros,
a la que se encontrará el globo tras 40 segundos de descenso?Uno de estos globos se encontraba a 250 metros de altura cuando se
desactivó su mecanism
aire caliente.
A partir de ese momento, el globo comenzó a descender 4 metros de
altura (-4 m) por cada segundo.
¿Cuál de las siguientes expresiones corresponde a la altura, en metros,
a la que se encontrará el globo tras 40 segundos de descenso?
Answer:
La contestacion debe ser la C, ya que estas buscando el total de altura que ha descendido en 40 segundos.
Which table of values represents the equation Y= 2X +5?
Answer:
The first choice:
x: -5, -4, -3, -2, -1
y: -5, -3, -1, 1, 3
Step-by-step explanation:
If we apply the equation here...
y = 2x + 5
(Let's use -1 for example)
y = 2(-1) + 5 --> y = -2+5, which gives us 3
On the table, it says that the y is 3, so it proves that it is correct
If you apply the equation for all of the x's, it'll give you the y's for the first choice. This doesn't apply to the rest of the tables, so the first table is the correct choice
The values are satisfied by
x y
-5 -5
-4 -3
-3 -1
-2 1
-1 3
What is equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
Given:
Y= 2X +5
let us put the value for X
X= 0
Y = 5
and, X=1
Y = 2 + 5 = 7
and, X= 2
Y= 4 + 5 = 9
and, X=3
Y = 6 + 5 = 11
and, X= 5
Y = 10 + 5= 15
and, X= -1
Y= -2 + 5 = 3
Hence, these values are satisfied by
x y
-5 -5
-4 -3
-3 -1
-2 1
-1 3
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please dont bs just answer the quesion for gods sake please dont bs im begging YALL JUST ANSWER THE QUESTION PLEASE
Answer:
g+r=15 and 2.00g+4.50r=37.50 are the two equations you need to use
Step-by-step explanation: IM NOT COMPLETLEY SURE THO
Answer: C
The total number of pounds of trail mix is 15. The pounds of granola added to the pounds raisins has to equal 15. So, one of the equations is g + r=15.
In total the cost of the granola and the cost of the raisins must be equal to $37.50. Since the granola costs $2 per pound and the raisins cost $4.50 per pound, 2g + 4.5r= 37.5.
Hope this helps! :)
I’m stuck between B and D but not sure which one is correct
Which function's graph has a period of 2?
Answer:
the answer is (d) . )))))((((
Answer: B. y= -4sin piX (Tha PEX)
Please awnshrhrhdhdhfhfhfhfhfhhdh
Answer:
The correct option is B. 3¹⁰
Step-by-step explanation:
[tex] \\ ( {3}^{2} )^{3} \: •\: {3}^{4} [/tex]
[tex] \\ \mapsto {3}^{2 \times 3} \: • \: {3}^{4} [/tex]
[tex] \\ \mapsto {3}^{6} \: • \: {3}^{4} [/tex]
[tex] \\ \mapsto {3}^{6 + 4} [/tex]
[tex] \\ \mapsto {3}^{10} [/tex]
what is the answer to this question and how??
Answer:
maybe there's a typo, that dot usually represents the multiplication, and I got 5.52
Do the functions have the same concavity?
Answer: A function is concave up (or upwards) where the derivative is increasing. This is equivalent to the derivative of, which is, being positive. Similarly, is concave down (or downwards) where the derivative is decreasing (or equivalently, is negative).
Step-by-step explanation: if you can give me brainly please hope this helps
In the triangle below, suppose that
help me pleaseeeeees
Answer:
1. Percent change - 14.5455% ≈ 15% | decrease
2. Percent change - 30.2326% ≈ 30% | increase
3. New price - $83.74
4. New price - $436.50
Step-by-step explanation:
To find an increase or decrease in price, if you have the percent provided, convert the percent into a decimal, then multiply the percent by the price, if it's an increase, add the price by the sum, if it's a decrease, subtract the price by the sum.
passes through (4, -1), slope = -3
Answer:
y = -3x + 11
Step-by-step explanation:
To find the equation of the line we would plug in the given info into the point slope equation:
[tex]y-y_{1} =m(x - x_{1} )[/tex]
In this case (x1, y1) is (4, -1) and m is -3:
y - (-1) = -3(x - 4)
We can simplify as follows:
y + 1 = -3x + 12
y = -3x + 11
Help me please , Write the slope intercept of the given line, provide the submit solution
Answer:
y=1/3x + 2
Step-by-step explanation:
the y intercept is 2 since that's where the line crosses and the x intercept is at 4
Examine the following table, which represents some points on a line.
x 3,0,-3,-6,-9
y -3,-2,-1,0,1
What is the equation for the line in slope-intercept form?
Answer:
y = −3/1 x−2
Step-by-step explanation: