The error Chaim made in his proof is: D. Chaim used a criterion (SSA) that does not guarantee congruence.
What is the Side-side-side Congruence Theorem (SSA)?The SSA congruence theorem only exist and holds true, only if the congruence non-included angles in both triangles are either obtuse or right angles and have two pairs of congruent sides.
Thus:
The two triangles given have a pair of non-included congruent angles that are less than 90 degrees.
Therefore, the error Chaim made in his proof is: D. Chaim used a criterion (SSA) that does not guarantee congruence.
Learn more about SSA theorem on:
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Rebecca has been planting young trees in her garden. The maple tree that is 10 centimeters tall
is growing 2 centimeters per month, whereas the oak tree that is 15 centimeters tall is
growing 1 centimeter per month. In a few months, the two trees will be the same height. How
many months will this take and what will that height be?
Answer:
It will take 5 months and that height will be 20cm.
Step-by-step explanation:
Let the height of the tree be h cm and the number of months be m.
Maple tree
Initial height= 10cm
Total height= 10cm +2(number of months)
h= 2m +10 -----(1)
Oak tree
Initial height= 15cm
Total height= 15cm +1(number of months)
h= m +15 -----(2)
When the height of the two trees are the same,
2m +10= m +15
Solve for m:
2m -m= 15 -10
m= 5
Substitute m=5 into either equation 1 or 2 to obtain the height.
When m=5,
h= 5 +15
h= 20
A. undefined B. 0 C. 1 D. -1
Answer:
0
Step-by-step explanation:
Zero .
Cot = 1/tan ∅
But tan ∅= cos∅ / sin ∅
so if ∅/90 then cos 90/ sin 90 x π/2 should be 0
Answer:
The answer is D.) 0
Step-by-step explanation:
JUST DID THE QU
Which statement about 7/3 is true
A. 7/3 = 7 x 3/1
B. 7/3 = 7 x 3/3
C. 7/3 = 7 c 1/7
D. 7/3 = 7 x 1/3
Answer:
D, the rest are not true about the statement 7/3
Answer:
D. 7/3 = 7 x 1/3
Step-by-step explanation:
[tex]7 * \frac{1}{3} = \frac{7}{1} * \frac{1}{3} = \frac{7}{3}[/tex]
List five examples of materials and equipment that can be used for math activities.
Answer:
compass
protecter
scale
pencil
Hence, the fives examples are explained.
What is the mathematics?
Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes
(1) Ruler
(2) Set-squares
(3) Compass
(4) Divider
(5) Protactor
Hence, the fives examples are explained.
To know more about the maths
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A runner covers a distance of 1200m with an average speed of 4m/s. How long does it take to run this distance? Then calculate the time in min.
Be the first answer for Brainliest, please I need help.
Answer:
5mins
Step-by-step explanation:
well i did 1200 divided y 4 then divided that answer by 60
tenth term of 4n-3
thank you
4n - 3 = 4 * 10 - 3 = 40 - 3 = 37
....
Answer:
tenth term =(4×10)-3
=40-3
=37
Bella can run a mile in 9.54 minutes. Linda can run a mile in 8.22 minutes. How much faster can Linda run than Bella? Justify your reasoning.
Answer:1.16 times
Step-by-step explanation:
Given
Bella can run a mile in 9.54 minutes
Linda can run a mile in 8.22 minutes
We know, [tex]\text{distance=speed}\times\text{ time}[/tex]
Speed of Bella, for running a mile is
[tex]\Rightarrow v_b=\dfrac{1}{\frac{9.54}{60}}=\dfrac{60}{9.54}\\\\\Rightarrow v_b=6.29\ mph[/tex]
Speed of Linda, for running a mile is
[tex]\Rightarrow v_l=\dfrac{1}{\frac{8.22}{60}}=\dfrac{60}{8.22}\\\\\Rightarrow v_l=7.29\ mph[/tex]
So, Linda is faster than Bella, as her speed is more compared to Linda.
Linda is [tex]\frac{9.54}{8.22}=1.16[/tex] times faster than bella
need answer. please help
Turn away weight loss challenge your friend goes from one $125 lb to 100 lb what was the percent weight loss
The measure of ∠DBE is (0.3x−22)° and the measure of ∠CBE is (0.2x−55)°. Find the value of x.
Factor by grouping
3x^2 + 11 - 14
plss i need help!
Answer:
3x^{2}+11-14 hi
Step-by-step explanation:
Answer:
3(x²-1)
Step-by-step explanation:
=3x²-3
=3(x²-1)
A rectangular prism has a volume of 56 cubic inches. Find one possible set of measurements
for the base area and height of the prism.
DONT ANSWER IF YOU DONT KNOWWWWWW . Click All that apply:)
Answer:
1.Location
2.shape
3.orientation
Step-by-step explanation:
Answer: Orientation
Step-by-step explanation:
Basically how the shape looks like on a graph for example a right side up triangle would look different from a upside down triangle
Johnathan is driving at a constant velocity on a long stretch road. The distance he travels is dependent on the length of time he drives. What type of variation describes the velocity Johnathan is driving in this situation?
Answer:
um i think its mph
Step-by-step explanation:
If the flea is to the left of zero and the absolute value of its location is 3.6, where on the number line is it?
Answer:
Uhhh.... -3.6?
what is the value of A
Answer:
There's no picture for me to answer your question.
Step-by-step explanation:
A stack of one dozen cookies of diameter
5 in. exactly fits in a cylindrical container of
volume 179.715 in.3. Which is the thickness of
each cookie?
Answer:
.763 in for each cookie
Step-by-step explanation:
[tex]179.715 =\pi (2.5)^{2} h\\179.715= \pi (6.25)h\\179.715=19.635h\\h=9.153\\[/tex]
After you solve for the height you would divide it by 12 to get the thickness of one cookie which is .763 in.
Can someone tell me a proportion to convert 5 pounds to ounces asap. pls someone reply quick
Answer:
5 pounds = 80 ounces
Hope it helps!!!
HELP ME PLZZ I NEED HELP WITH THIS
Answer:
25 + 11 hope this helps
Step-by-step explanation:
answer is the third one
Find the total surface area of the triangular pyramid
A. 98.6 ft
B. 123.6 ft
C. 99.5 ft
D. 201 ft
E. 103 ft
F. 118.1 ft
Someone please help with this Free Response on USATestPrep
Given the equation y = 12x − 25, describe a real-life context that could be modeled by the equation and describe the meaning of the coefficient, variable, and constant term expressed in the equation.
Answer:
Kindly check explanation
Step-by-step explanation:
Given the equation :
y = 12x − 25
The initial depth of groundwater being held by a storage tank which extends downward below the ground surface is - 25. The rate of change in depth the groundwater per unit of Rainfall is 12. Hence, a linear model which could model the depth of water in the tank in the described scenario is ;
y = 12x − 25
The rate of change in depth of ground water, y per unit change in number of Rainfall, x gives the slope Coefficient, which equals 12
The intercept value, which is the initial depth of groundwater before, it started raining is - 25
there are 30 cities in a country. Each city has 4 highways coming out of it. How many highways connecting 2 cities are there in this country?
Answer:
29
Step-by-step explanation:
There would be 29 highways connecting 2 cities
35° (14x + 5)° solution
Answer:
490 + 175
Step-by-step explanation:
35(14+5)
35x14x=490x
35x5=175
490 + 175 = 665x
Find the value of the marked angles in each of the following ( see image ).
Please show workings.
The only given angles are 62° and 85°.
The angle to look for is marked by “))”
Answer:
(180-62)
118
180-118=62
180-85=95
180-(62+95)
180-157
23
Answer:
23°Step-by-step explanation:
The inscribed is the cyclic quadrilateral.
The opposite angles are supplementary in cyclic quadrilaterals.
The angle opposite to 85° is:
180° - 85° = 95°The missing angle of the triangle is:
180° - (62° + 95°) = 23°the unit used to measure the length of the key is
Answer: millimeter
Step-by-step explanation: millimeter (mm) – a metric unit commonly used to express the length of very small objects like keys, and thickness of small objects like notebook.
please help
ABC = ADC . Find y.
Answer:
y is 7
Step-by-step explanation:
Factor out the GCF:
-9n^5 + 3n
Answer:
3n or -3n([tex]3n^{4}[/tex]-1)
Step-by-step explanation:
i hope its correct!!!
^^
Answer: 3n(-3n^3 + 1)
Step-by-step explanation:
4y + 12 = 8
y=
Someone please help!!
A city has a population of 320,000 people. Suppose that each year the population grows by 7%. What will the population be
after 15 years?
Use the calculator provided and round your answer to the nearest whole number.
Eriasia wanted to put down new tile in her bathroom. Her bathroom had a width of 10 ft and a width of 9 feet. How many square feet of tile should she buy
Answer:
90 ft²
Step-by-step explanation:
Length of her bathroom = 10 ft
Width of her bathroom = 9 ft
Area of Eriasia bathroom = length × width
= 10 ft × 9 ft
= 90 ft²
Area of Eriasia bathroom = 90 ft²
Eriasia should buy 90 square feet of tile