Mathematics High School
Answers
Answer 1
Answer:
(-15,7)
Step-by-step explanation:
I did it on desmos
Related Questions
4x > −12? Do i flip the sign? x=-3
Answers
Answer:
The sign would be turned into an equal sign
Step-by-step explanation:
4(-3)= -12
A negative times a positive is a negative.
-12 = -12
system of equations, special case infinitely many solutions?????
Answers
One possible system is
1x + 3y = 4
2x + 6y = 8
Note how 2 is twice as large as 1, 6 is twice as large as 3, and 8 is twice as large as 4.
In other words, the second equation is the result of multiplying both sides of the first equation by 2.
1x+3y = 4
2*(1x+3y) = 2*4
2x+6y = 8
Effectively the two equations in bold are the same which produces the same line. The two lines overlap perfectly to intersect infinitely many times. An intersection is a solution.
HELPPP! i’m so confused and i need to get a good grade
Answers
Answer: B is the answer
Step-by-step explanation:
Answer:
B
I live in the UK
What is 7.63 as a mixed number in simplest form
Answers
Answer:
763/100
Step-by-step explanation:
7.63==7 63/100=763/100
Answer:
7 63/100
Step-by-step explanation:
7 is a whole number
Since 63 is in the hundredths place, it would be 63/100 because it is part of the number.
63/100 can't be simplified any further.
The final answer is 7 63/100.
5.
Jenny bought 4 books in a bookstore. The prices of the first 3 books
were $10, $15 and $25. The average price she paid for the 4 books
was $18 per book. How much did she pay for the 4th book?
Help me outttt
Answers
$22. Use trial and error punching in a 4th number then dividing the total by 4.
Answer:
22 dollars
Step-by-step explanation:
Larissa eats of a 1.5-pound bag of goldfish in of an hour. If she eats goldfish at a constant rate, how 5 3 6 5long, in hours, would it take her to finish a 5-lb box of goldfish?
Answers
ABOUT 3 hours and 20 minutes
Step-by-step explanation:
just do 5 divided by 1.5 which roughly equals 3.33333 or 3 1/3 which is 3 then you add units on it getting 3 hours and 20 minutes.
Hi guys really need help w/ this problem will give brainllest for the first person
A pile of coins, consisting of nickels, dimes, and quarters, is worth $4.55. There are 4 more dimes than nickels and 3 quarters more than dimes. How many of each are there?
Answers
Answer:
There are 6 nickels, 10 dimes and 13 quarters.
Step-by-step explanation:
number of nickels = n
number of dimes = n+4
number of quarters = (n+4)+3 = n+7
express total amount in cents $4.55 = 455 cents
express total in cents by multiplying quantities of coins by value and adding them up.
455 = 5*n + 10*(n+4) + 25*(n+7) 455 = 5n + 10n + 40 + 25n + 175 240 = 40n n = 6
so number of nickels = 6.
number of dimes = number of nickels + 4 = 6+4 =10
number of quarters = number of dimes + 3 = 10+3 = 13
There are 6 nickels, 10 dimes and 13 quarters.
Answer:
Step-by-step explanation:
dime = 10 cents = 0.10 dollars
quarter 25 cents=0,25 dollars
nickel = 5 cents = 0.05 nickel
o.10 d +0.25 q+0.05 n=4.55 or
10d+25 q+5 n =455
d=4+n
q=d+3
q=4+n+3 ( d=n+4)
q=n+7
10d+25 q+5 n =455 ( substitute d with n+4 and q with n+7)
10(n+4)+25(n+7)+5n = 455
10n+40+25n+175+5n=455
40 n =455-215
n=6 ( six nickels)
d=4+n
dime=10 pieces
uarter = n+7
quarter = 13 pieces
check :
10d+25 q+5 n =455
10(10)+25(13)+5(6)=455
What is the answer to this integer equation??
5x - 1 - 3x = -1
Answers
Answer:
Step-by-step explanation:
5x - 3x -1 = -1
2x - 1 = -1
+1 +1
2x = 0
/2 /2
x = 0
Tarzan finds a large box full. of gadgets that has a volume of 27 cubic feet. what is one side of the box?
Answers
Answer: One side of the box is 3 feet.
Step-by-step explanation: To find the dimensions of the large box, simply solve for x. x = the length of each side. When dealing with volume there a 3 sides.
Solve for x;
x3 = 27
x multiplied by 3 = 27. Simply divide 27 by 3. 27/3 = 9. Then divide 9 by the amount of sides which is 3. 9/3 = 3.
So, one side of the box is 3 feet.
The one side of the box will be 3 feet.
What is Number system?
A system of writing to express the number is called number system.
Given that;
Tarzan finds a large box full of gadgets.
And, The volume of the box = 27 cubic feet
Now,
Since, we know that;
Volume of a box = (Side)³
Substitute the value of volume of box in above equation, we get;
Volume of a box = (Side)³
27 = (Side)³
(Side)³ = 27
Take cube root on both side;
Side = ∛27
Side = ∛3 × 3 × 3
Side = 3 feet
Therefore, The one side of the box will be 3 feet.
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If V/7 =8 what is the value of V
Answers
Steps to solve:
v/7 = 8
~Simplify
1/7v = 8
~Multiply 7 to both sides
v = 56
Best of Luck!
Answer:
v=56
Step-by-step explanation:
multiply bothe sides of the equation by 7
7x v/7= 7x8
simplify
v=7x8
therefore v=56
if a number can be represented as a fraction whats it called?
Answers
Answer:
decimal fractions
Step-by-step explanation:
Help me please :) ...
Answers
- square root of 18
-square root of 7
pi/2
square root of 15
from lowest to highest
Please Help Me I'm confused with this question.
Answers
Answer:
The area of the circle is 28.274 inches squared
Step-by-step explanation:
First find the radius by dividing 6 by 2
6/2=3
Now plug in 3 to the area of a circle formula
[tex]A=\pi r^{2}[/tex]
[tex]A=\pi 3^{2}[/tex]=28.274
The area of the circle is 28.274 inches squared
Hope this helps! Plz award Brainliest : )
Answer:
Ur mom
Step-by-step explanation:
a scientist needs 10 liters of a 20% acid solution for an experiment, but she only has a 5% solution and a 40% solution. To the nearest tenth of a liter, about how many liters of the 5% solution and the 40% solutions should she mix to get the solution she needs?
Answers
Answer:
10 * .20 = .05 x + .40 ( 10-x)
5.7 liters of 5%
4.3 of the 40 %
Step-by-step explanation:
we need 10 liter of a 20 % solution
We have x liters of 5% and since there is a total of 10 liters we have 10-x of the 40 % solutions
10 * .20 = .05 x + .40 ( 10-x)
2 = .05x +4 - .4x
Combine like terms
2 = 4- .35x
Subtract 4 from each side
2-4 = -.35x
-2 = -.35x
Divide by -.35
-2/.-35 =x
40/7 =x
5.7 =x
10 -5 5/7 = 4 2/7
4.3 of the 40 %
Someone pls answer this it’s so confusing lol
Answers
Answer:
[tex]y = \frac{w}{h - {2c}^{3} } [/tex]
Step-by-step explanation:
w = yh - 2yc³
First of all factorize y out of the expression on the right side of the equation
That's
w = y( h - 2c³)
Next divide both sides by (h - 2c³) to make y stand alone
We have
[tex] \frac{y(h - {2c}^{3}) }{h - {2c}^{3} } = \frac{w}{h - {2c}^{3} } [/tex]
We have the final answer as
[tex]y = \frac{w}{h - {2c}^{3} } [/tex]
Hope this helps you
Working Capital includes which of the following? Question options: Deferred expenses and Depreciation Current assets and Current liabilities Owner's Capital and Cash Accounts Receivables and Owner's Withdrawal
Answers
Answer:
Current assets and Current liabilities
Step-by-step explanation:
i just took the test and go this right
Working capital includes Current assets and Current liabilities.
What are working capitals?
Working capital is a financial metric that represents the difference between a company's current assets (such as cash, accounts receivables, inventory) and its current liabilities (such as accounts payable, short-term debts).
It measures the short-term financial health of a business and its ability to cover its short-term obligations. By subtracting current liabilities from current assets, you can calculate the working capital, which indicates the amount of capital available to fund day-to-day operations and short-term financial requirements.
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Find h (x) + g (x) h (x) = x2 + 6x and g (x) = -2x - 3 A. x2 - 4x - 3 B. x2 + 8x - 3 C. x2 + 4x - 3 D. x3 + 4x2 - 3
Answers
Answer:
Step-by-step explanation:
x^2 + 6x - 2x - 3
x^2 + 4x - 3
answer is C
Help please!!!!!!30 points
Answers
Answer:
31.
[tex]6.139\times 10^-^7\\\\or\: 613.9\times 10^-^9[/tex]
29.
[tex]1.806 \times 10^2^5[/tex]
Step-by-step explanation:
31.
[tex]6.83\times\:10^{-7}-6.91\times\:10^{-8}\\\\10^{-7}=\frac{1}{10^7}\\\\=6.83\times\frac{1}{10^7}-10^{-8}\times\:6.91\\\\10^{-8}=\frac{1}{10^8}\\\\=6.83\times\frac{1}{10^7}-6.91\times\frac{1}{10^8}\\\\6.83\times\frac{1}{10^7}=0.000000683\\\\6.91\times \frac{1}{10^8}=0.0000000691\\\\=0.000000683-0.0000000691\\\\=0.0000006139\\\\= 6.139\times 10^-^7[/tex]
29.
[tex](2.1\times 10^1^6)\times(8.6\times 10^8)\\\\10^{16}\times \:10^8=\:10^{16+8}\\\\=2.1\times \:8.6\times \:10^{16+8}\\\\\mathrm{Add\:the\:numbers:}\:16+8=24\\=2.1\times \:8.6\times \:10^{24}\\\\\mathrm{Multiply\:the\:numbers:}\:2.1\times \:8.6=18.06\\=10^{24}\times \:18.06\\\\10^{24}=1.0E24\\\\=18.06\times \:1.0E24\\\\=1.806E25[/tex]
Answer:
31 and 29
Step-by-step explanation:
Other answer = more information lol
Four sets of three squared
Answers
Answer:
[tex]4^3[/tex]
Step-by-step explanation:
Four sets of three Squared
To start, you will need to get the set(base number) and get the exponent 3 and put it on the top.
[tex]4^3[/tex]
Hope this helps!
Find the inverse of f(x)=−32x+72.
Answers
Answer: [tex]f^{-1}(x)=-\frac{x-72}{32}[/tex]
Step-by-step explanation:
To find the inverse function, you want to switch x with y and y with x, then solve for y.
y=-32x+72 [switch x with y and y with x]
x=-32y+72 [subtract both sides by 72]
x-72=-32y [divide both sides by -32]
[tex]y=-\frac{x-72}{32}[/tex]
Now, we have found the inverse function.
A construction worker tosses a brick from a tall building. The brick's height (in meters above the ground) t tt seconds after being thrown is modeled by h ( t ) = − 5 t 2 + 20 t + 105 h(t)=−5t 2 +20t+105h, left parenthesis, t, right parenthesis, equals, minus, 5, t, squared, plus, 20, t, plus, 105 Suppose we want to know the height of the brick above the ground at its highest point. 1) Rewrite the function in a different form (factored or vertex) where the answer appears as a number in the equation. h ( t ) = h(t)=h, left parenthesis, t, right parenthesis, equals 2) At its highest point, how far above the ground was the brick?
Answers
Answer:
h(t)=−5(t−2)^2+125, 125
Step-by-step explanation:
The vertex form of the equation is h(t) = -5 ( t - 2)² + 104.
At its highest point, the brick was 101 meters above the ground.
What is the vertex form of a quadratic function?
The factored form of a quadratic function is given as:
f(x) = a(x – h)2 + k
where a, h, and k are constants.
We have,
h(t) = -5t² + 20t + 105
h(t) = -5 ( t² - 4t ) + 105
h(t) = -5 ( t² - 4t + 2² ) - 2² + 105
h(t) = -5 ( t - 2 )² - 4 + 105
h(t) = -5 ( t - 2 )² + 101 _____(1)
The vertex form of the equation is h(t) = -5 ( t - 2)² + 104.
From equation (1) we can say that at its highest point the brick was at
101 meters above the ground.
Thus,
The vertex form of the equation is h(t) = -5 ( t - 2)² + 104.
At its highest point, the brick was 101 meters above the ground.
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4(x-9)=3x-8x what is x?
Answers
Answer:
x = 4
Step-by-step explanation:
4(x-9)=3x-8x
Follow distributive property
4x - 36 = 3x - 8x
Combine like terms
4x - 36 = -5x
Subtract 4 from both sides
-36 = -9x
Divide both sides by -9
x = 4
Multiplying fractions
Answers
Answer:
Here's the formula
Step-by-step explanation:
Just multiply straight across
a. x c
----- ------ ----> A times C and B times D
b. x d
ex:
1. 2. 3
---- x. --- = -----
4. 8. 32
Simplify
3. 1
--- = -----
32. 16
Answer:
How to multiply fractions:
1) Multiplying fractions is the same thing as multiplying while numbers
2) To multiply fractions, you have to multiply numerator with numerator and denominator with denominator
3) If you need to reduce to the simplest form, you just have to divide the numerator and denominator by the same number until the fraction cannot be divided anymore
Ex. [tex]\frac{5}{10}[/tex] x [tex]\frac{6}{10}[/tex] = [tex]\frac{30}{100}[/tex] = [tex]\frac{3}{10}[/tex]
Hope this helps!
What number is 23 less than -11?
Answers
Answer:
-34
Step-by-step explanation:
→ Put the sentence into numbers
-11 - 23 = -34
Find f (-5) f(x) = -4x +3
Answers
Answer:
f(-5) = 23
Step-by-step explanation:
Step 1: Define
f(-5) = x = -5
f(x) = -4x + 3
Step 2: Substitute
f(-5) = -4(-5) + 3
Step 3: Evaluate
f(-5) = 20 + 3
f(-5) = 23
What number has 1 ten thousand, the same number of thousands as ten thousands, 8
more hundreds than thousands, 6 fewer tens than hundreds, and the same number of
ones as ten thousands?
Answers
Answer:
11931.
Step-by-step explanation:
It is given that a number has 1 ten thousand.
The same number of thousands as ten thousands.
Number of thousands = 1
8 more hundreds than thousands.
Number of hundreds = 1+8=9
6 fewer tens than hundreds.
Number of tens = 9-6=3
The same number of ones as ten thousands.
Number of ones = 1
So, the required number is
Number = 1 ten thousand + 1 thousand + 9 hundreds + 3 tens + 1 ones
[tex]Number=1\times 10000+1\times 1000+9\times 100+3\times 10+1\times 1[/tex]
[tex]Number=10000+1000+900+30+1[/tex]
[tex]Number=11931[/tex]
Therefore, the required number is 11931.
you sell large and small pictures at a fair. you sell a total of 16 pictures and made a total of $350. if you sell for $ 25 and small pictures sell for $20 how much of each did you sell?
Answers
Answer: 41 small pictures
Step-by-step explanation:
Geometry, help with the last 3 questions!
Answers
Answer:
5) 7
6) 14
7) 31
Step-by-step explanation:
5) 5a-4=2a+17
3a=21
a=7
6) 2(7)=14
7) 2(7)+17=31
4. C
5. 2a + 17 = 5a - 4
- 3a = - 21
a = 7
6. XY = 2(7) = 14
7. XZ = 5(7) - 4
= 31
Every Wednesday, Wayne works out for 3 4 of an hour at the fitness center. Every Saturday, he goes to the fitness center again and exercises for 3 times as long. How much time does Wayne spend at the fitness center in all each week?
Answers
Answer:
3
Step-by-step explanation:
Explain how the rules for naming a ray and a line segment are different
Answers
Step-by-step explanation:
a line segment represents a collection of points inside the endpoints and it's named by the endpoints. Ray is a line that only has defined endpoints one slide that extends endlessly away from the endpoint.
A line segment represents a collection of points inside the endpoints and it is named by its endpoints. A ray is a line that only has one defined endpoint and one side that extends endlessly away from the endpoint. A ray is named by its endpoint and by another point on the line.