True or false? A theorem is a statement that can be easily proved using a
corollary.
Answer:
true
Step-by-step explanation:
Answer: False
explanation:
Its proof is not difficult because it is based on the statement or theorem which has been already proved. For example the fundamental theorem of algebra and its corollary. Therefore, the statement "A corollary is a statement that can be proved using a theorem, but the proof is usually difficult." is false
Find the perimeter of a rectangle whose one side measures 20m and diagonal is 29m
Answer:
Option A
Step-by-step explanation:
Answer:
1.You draw the rectangle and label on one side 20m
2.Draw a diagonal line inside the rectangle an label the line as 29m
3.Extract the the newly formed right angled triangle.
4.Find the hypotenuse (a+b=c) of the right angle which will give you the value of the unknown side.
5.Calculate the perimeter which is;
P=S+S+S+S
P= 20m+9m+20m+9m
P=29m+29m
P=58m
x^2+19=10 solve algebraically
4x^2+3=43 solve algebraically
Answer:
[tex]a)\ x_1=-3i,\ x_2 =3i[/tex]
[tex]b)\ x_1=-\sqrt{10},\ x_2=\sqrt{10}[/tex]
Step-by-step explanation:
Given equations:
[tex]a)\ x^2+19=10\\\\b)\ 4x^2+3=43[/tex]
A. x² + 19 = 10
Step 1: Subtract 19 from both sides.
[tex]\\\implies x^2+19-19=10-19\\\\\implies x^2=-9[/tex]
Imaginary number rule: For any positive real number "k", [tex]\sqrt{-k} = i\sqrt{k}[/tex]
Note: Two imaginary (complex) solutions indicate that the graph will not intersect the x-axis. As a result, it has no real roots.
Step 2: Take the square root of both sides (positive and negative roots).
[tex]\\\implies \sqrt{x^2}=\sqrt{-9}\\\\\implies x=\pm\ i\sqrt{9}\\\\\implies x=\pm\ 3i[/tex]
Step 3: Separate the solutions.
[tex]\implies x_1=-3i,\ x_2 =3i[/tex]
----------------------------------------------------------------------------------------------------------------
B. 4x² + 3 = 43
Step 1: Subtract 43 from both sides.
[tex]\\\implies 4x^2++3-3=43-3\\\\\implies 4x^2=40[/tex]
Step 2: Divide both sides by 4.
[tex]\\\implies 4x^2=40\\\\\implies \dfrac{4x^2}4=\dfrac{40}{4}\\\\\implies x^2=10[/tex]
Step 3: Take the square root of both sides (positive and negative roots).
[tex]\\\implies \sqrt{x^2}=\sqrt{10}\\\\\implies x=\pm\ \sqrt{10}[/tex]
Step 4: Separate the solutions.
[tex]\implies x_1=-\sqrt{10},\ x_2=\sqrt{10}[/tex]
A cyclist travels 15 miles in 45 minutes.
What is his average speed in mph?
The answer is 20 Km/hr
first : you have miles . then change it into Km .
second: 45 min to sec
finally speed is the distance per unit time
Which of the following are divisible by both 2 and 3?
(Choose 2)
A. 456
B. 765
C. 1262
D. 1548
Answer:
Step-by-step explanation:
find the inverse equation
f(x) = 2x – 3
Solve for x.
PLease need help
Answer:
x=7
Step-by-step explanation:
22x-4=7x-4+105
cancel both 4 out
22x=7x+105
15x=105
x=7
Carrie got a $65 gift certificate. She plans to buy a $12 rose bush and as many seed packets as she can for $1.79 each. Which of these inequalities shows x, the number of seed packets she can buy?
Answer:
she can buy the rose bush and 29 packets of seeds. So i think X= 29
Step-by-step explanation:
y varies inversely with x. If y = 4 when x= -6, find the constant of variation and find the value of y when x= -2
Answer:
constant of variation: k = -24
y = 12 when x = -2
Step-by-step explanation:
y varies inversely with x equation is: y = k/x
where 'k' if the constant of variation
plug in:
4 = k/-6
cross-multiply to get value of 'k' which is -24
plug in:
y = -24/-2
y = 12
Tabitha is 8 years younger than 4 times pats age. Tabitha is 40. How old is Pat
Answer:
pat is 62
Step-by-step explanation:
Answer:
12
Step-by-step explanation:
Solve for x -2x -3<5
Answer:
Inequality form
x > - 8
Step-by-step explanation:
hope this helps
Answer:
i think it's
x > - 8
Step-by-step explanation:
hope this helps :)
A total of 250 people were surveyed about whether or not each person carries a cell phone. The results are shown below in the relative frequency table.
Total
Female
Male
Total
Carries
Cell
Phone
0.42
0.30
0.72
Does Not
Carry Cell
Phone
0.16
0.12
0.28
0.58
0.42
1.00
Which statement is correct?
o 70 people carry cell phones.
O 105 males carry cell phones.
o 145 females carry cell phones.
180 people total carry cell phones.
Answer:
180 people carry cell phone
Step-by-step explanation:
each number is a percentage so you can figure out all the percentages of the bottom and right
0.72 carry cell phone
180 carry cell phone
0.28 dont carry cell phone
70 people dont carry cell phone
0.58 are female
145 are female
0.42 are male
105 are male
therefore that leaves the 180 people carry cell phone
(Will give brainliest) In your own words, say what a rational number is. Give at least three different examples of rational numbers.
In your own words, say what an irrational number is. Give at least two examples.
Hey there!
A rational number is a number that CAN be turned in to a fraction, like 0.5, or 9, 0r -[tex]3^2[/tex].
A rational number is a number that CANNOT be turned into a fraction, like pi, or √2.
Hope it helps and have a great dayyyyy!!!!!
3-2(3x+1)=19
How would I solve this equation?
Step-by-step explanation:
3-2(3x+1)=19
[tex]3 - 6x - 2 = 19 \\ 1 - 6x = 19 \\ - 6x = 19 - 1 \\ - 6x = 18 \\ x = - 3[/tex]
Sandra calculated her Taxable income as 39,250. She paid 6,000 dollars in federal withholding tax . Based on the table above , what is the amount Sandra Will receive as a refund
Answer:
i really dont even know
Step-by-step explanation:
Answer:
Sorry if it’s to late but the answer is 56:)
Step-by-step explanation:
plz answer for 35 points
Answer:
The answer is B.
Step-by-step explanation:
What is the area?Write your answer as a fraction or as a whole or mixed number
Answer:
83 3/10
Step-by-step explanation:
multiple the numbers
Find the quotient 7/9 divide 5/6
Answer:
7/9 ÷ 5/6 = 42/45 as simplified as 14/15 in fraction form. 7/9 ÷ 5/6 = 0.9333 in decimal form.
Step-by-step explanation:
Answer:
14/15
Step-by-step explanation:
7/9 x 6/5 = 42/45 = 14/15
brainliest pls
A golf store purchases a set of clubs at a wholesale price of $250. Mr. Edmond learned that the clubs were marked up 200%. Is it possible to have a percent increase greater than 100%? What is the retail price of the clubs?
please help a girl out.
Answer:
Yes it is possible to have an increase of 100%.
Retail price is 83.4$
Step-by-step explanation:
250 = x + (200% of x)
250 = 300% of x
so basically 250$ = 3x
250/3 = 83.3333334
So you can round it to $83.4
Hope this helps. I'm not entirely sure this is true but I hope it is.
Do 4x and 15+x have the same value when x is 5?
Are 4x and 15+x equivalent expressions? Explain your reasoning.
Answer:
1. yes 2. no
Step-by-step explanation:
Hi there!
When x is equal to 5, 4x and 15+x have the same value because 4*5= 20 and 15+5 = 20.
4x and 15+x are not equivalent expressions because they cannot be simplified to create the same expression nor will they produce the same answer every time.
I hope this helps!
Math Geniuses!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Use the Distributive Property and write the sum of the number as the product of the GCF.
30 + 12
Answer:
1,2,3 and 6 is the answer
Choose Yes or No to tell if the fraction 3 5 will make each equation true. 7 20 + □ = 19 20 Choose... □ + 3 10 = 3 15 Choose... 1 2 + 2 3 = □ Choose... 1 10 + 1 2 = □ Choose...
Answer:
True ; false ; False ; true
Step-by-step explanation:
Equation 1:
7 20 + □ = 19 20
19 / 20 - 7/20
(19 - 7) / 20
12/ 20 = 3/5
Equation 2:
□ + 3 10 = 3 15
3/5 + 3/10
(6 + 3) / 10 = 9/10
Equation 3:
1 2 + 2 3 = □
1/ 2 + 2/3
(3 + 4) / 6
7 / 6
Equation 4:
1 10 + 1 2 = □
1/10 + 1/2
(1 + 5) / 10
6 / 10 = 3/5
SOLUTION
5 Salvador drives 6.5 miles to his aunt's house. For every mile Salvador drives, the
amount of gas in the car's gas tank changes by -0.04 gallon. What is the total
change in the gallons of gas in the car's tank? Show your work.
SOLUTION
Answer:
-0.26 gallon
Step-by-step explanation:
-0.04x 6.5=0.26
7. A rectangle has a perimeter of 24 motors
and an area of 35 square meters, what is
the length in meters of the longer side?
AI
B. 3
c.5
D.7
E8
Answer:
D
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)
D
why must it be more than 20 characters???
find the equation of the axis of symmetry and the coordinates of the vertex of the graph of each function.
Answer:
Axis of symmetry is 0
vertex is 1
Step-by-step explanation:
Please help will give 20 points
Answer:
not sure but i think its B
2x+3y=34
3x+2y=36
solve for x and y
Answer:
(8, 6 )
Step-by-step explanation:
Given the 2 equations
2x + 3y = 34 → (1)
3x + 2y = 36 → (2)
Multiplying (1) by 3 and (2) by - 2, then adding will eliminate the x- term
6x + 9y = 102 → (3)
- 6x - 4y = - 72 → (4)
Add (3) and (4) term by term to eliminate x, that is
5y = 30 ( divide both sides by 5 )
y = 6
Substitute y = 6 into either of the 2 equations and solve for y
Substituting into (1)
2x + 3(6) = 34
2x + 18 = 34 ( subtract 18 from both sides )
2x = 16 ( divide both sides by 2 )
x = 8
solution is (8, 6 )
At the farmer's market 1 dozen eggs cost 3.75 What is the cost for 1 dozen eggs?
Answer: The cost is 3.75
Step-by-step explanation: Since you wrote, 1 dozen eggs costs about 3.75, your question was, "What is the cost for 1 dozen eggs?" So the answer should be 3.75.
What is the answer??
Answer:
try 1
because translate means to directly copy something. i think.
Step-by-step explanation: