40% of the cars in a parking lot were american made cars. if there are 60
american made cars in the parking lot, how many cars are in the lot?
there are "x" amount of cars in the lot, and oddly enough that's 100%, if we know that 60 is 40% of that, what is "x"?
[tex]\begin{array}{ccll} amount&\%\\ \cline{1-2} x & 100\\ 60& 40 \end{array} \implies \cfrac{x}{60}=\cfrac{100}{40}\implies \cfrac{x}{60}=\cfrac{5}{2} \\\\\\ 2x=300\implies x=\cfrac{300}{2}\implies x=150[/tex]
For what real values of $c$ is $4x^2 + 14x + c$ the square of a binomial?
Only for c = 49 the given expression is the square of a binomial.
For which values of c is the given expression the square of a binomial?We want to find the values of c such that:
[tex]4x^2 + 14x + c[/tex]
Is the square of a binomial.
Remember that:
[tex](a + b)^2 = a^2 + 2ab + b^2[/tex]
Now we can rewrite our expression as:
[tex](2x)^2 + 2*7*x + c[/tex]
If you compare that with the general binomial expansion, we can see:
[tex]a = 2x[/tex]
[tex]b = 7[/tex]
Then c must be equal to 7 squared:
[tex]7^2 = 49 = c[/tex]
Only for c = 49 the given expression is the square of a binomial.
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What is the name of the following solid figure?
square pyramid
square prism
rectangular prism
cube
The mosaic had a 7 × 7 array of different color square tiles. If each tile is 3
1
2
ft long, what is the area of the whole mosaic
Answer:
441 square feet.
Step-by-step explanation:
Area = length times width. Both length and width are 21 feet (3×7).
PLSSS HELP IF YOU TURLY KNOW THISS
Answer:
B
Step-by-step explanation:
4/1 * 1/34 * 1 = 41 * 3 = 34/3; 1 1/3Answer:
B) 1 1/3
Step-by-step explanation:
4 x 1/3 = 4/3
4/3 = 1 1/3
Help me please for 50 points
[tex]\left(\sqrt[3]{- \dfrac 18} \right)^3+3\dfrac3 4\\\\\\=\left[\left(-\dfrac 18 \right)^{\tfrac 13}\right]^3+ \dfrac{12+3}4\\\\\\=\left(-\dfrac 18 \right)^{\tfrac 33\right)+ \dfrac{15}4\\\\\\=\dfrac{15}{4}- \dfrac 18\\\\\\\\=\dfrac{30-1}{8}\\\\\\=\dfrac{29}8\\\\\\=3\dfrac 58 \\\\\\= 3.625[/tex]
Answer:
29/8
Step-by-step explanation:
Choose the definition for the function.
-x+ 2 x<1
a.y =
{2
1 x + 1 x 21
x + 1 x
b. y = -x+ 2 x < 1 d. y =
{
{-x+ 2 x 21
x>
x + 1 x < 1
=&isíc.y=*+2 x>1
{
Enter
Answer:
B
Step-by-step explanation:
I hope this helps. God bless
use the factored form to solve the related question, 2x^2+17x+30=0. what are the solutions
Answer: x = -6 and x = -5/2
Step-by-step explanation:
[tex]$$Solve for $x$ over the real numbers: \\ $2 x^{2}+17 x+30=0$\\\\The left hand side factors into a product with two terms:$$(x+6)(2 x+5)=0$$Split into two equations:$$x+6=0 \text { and } 2 x+5=0$$Subtract 6 from both sides:$$x=-6 \text { and } 2 x+5=0$$Subtract 5 from both sides:$$x=-6 \text { and } 2 x=-5$$Divide both sides by 2 :Answer:$$x=-6 \text { and } x=-\frac{5}{2}$$[/tex]
Which step is the most efficient way to find the solution of p+5>−13?
Answer:
Subtract 5 from both sides
Step-by-step explanation:
Because you are rearanging for P as you want the solution for the inequality so you would chose this as it requires the least steps and is not trial and error like one of the other options
Margo's parents started a savings account when she started highschool. They put in $12,500 to start. If the account earns 7% simple interest every year, How much will she have after 4 years?
Answer:
probably bout like 4 dollars
Step-by-step explanation:
Follow the rule to find the output for an input of -4. output = input x 17
Answer:
output = - 68
Step-by-step explanation:
given
output = input × 17
when input = - 4 , then
output = - 4 × 17 = - 68
-1 and 5 represents the distance between
Answer:
betewwn them?
Step-by-step explanation:
A team of 3 QA testers and l QA team lead is working on a project. The team finishes
the job and is paid. The testers receive $1200 each, and the team lead receives S600
more than the average salary of the entire team. How many dollars does the team lead
get?
The team-lead gets $2000 if the team of 3 QA testers and l QA team lead is working on a project. The team finishes the job and is paid.
What is average?It is defined as the single number that represents the mean value for the given set of data or the closed value for each entry given in the set of data.
Let's suppose the team lead salary is x and the team-lead receives, $600 more than the average salary of the entire team then,
The team lead salary:
[tex]\rm x = \dfrac{1200+1200+1200+x}{4} + 600[/tex]
4x = 3600+ x+ 2400
3x = 6000
x = $2000
Thus, the team lead gets $2000 if the team of 3 QA testers and l QA team lead is working on a project. The team finishes the job and is paid.
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Factor
Please help me I will mark as brainliest
Answer:
hope this will help you
Step-by-step explanation:
[tex]b { }^{2} - 81 = 0 \\ b {}^{2} = 81 \\ b = \sqrt{81} \\ b = 9[/tex]
Answer: Heyaa! :D
Your Answer Is... 9
Step-by-step explanation:
Since both terms are perfect squares, factor using the difference of squares formula,
a²−b²=(a + b)(a − b) where a = B and
b = 9.
(B + 9)(B − 9)
help me pls worth 50 points!!!!
Answer:
40 : 1
Step-by-step explanation:
40 miles / 1 hour = 40 : 1
100 POINTS PLEASE HELP (pictures are down below)
Step-by-step explanation:
photos explain. in the second photo, A didnt start at 0 so it looked not accurate
You have 10 trees and 5 rows you can only use 4 trees a row
Answer:
You would plant 2 trees in each row instead of 4.
10 divided by 5 = 2
Pls answer
THe question below in the image
Answer:
Question 1: D.Question 2: C.Step-by-step explanation:
Question 1:
Franco made 36 invitations and gave out 14. How many invitations does he have left?
Simple. Solve for the bottom:
Bottom (Total): 36Right (Blue grid): 14Left (Red grid): ?That is the answer D.
Question 2:
Ebba gave out 36 invitations and still has 14 left. How many invitations does she have in all?
Complicated (a bit). Solve:
Bottom (Total): ?Left (Red grid): 14Right (Blue grid): 36That is the answer C.
Can someone come up with something easy for me to memorize mode and mean and range and median pls . Im having finals and I need help
Answer:
Mean-average
Median-middle
Mode-Most Often Digit Entered (Most Common Digit)
Range-Least To Greatest
Step-by-step explanation:
Malia walked her sister, flash, a total of 8 4/5 blocks every day. if malia and flash walked the same amount daily, how many blocks did they walk in 4 days? write your answer as a fraction or as a whole or mixed number.
Answer:
multiply the distance they walked by 4 since they walked for 4 days
Step-by-step explanation:
The midpoint of AB is M(6,3). If the coordinates of A are (7,4) what are the coordinates of B?
Answer:
(6.5,3.5)
Step-by-step explanation:
(6+7)÷2=6.5
(3+4)÷2=3.5
What are irrational and rational numbers?
An irrational number is a type of real number which cannot be represented as a simple fraction.
A rational number is a number that can be expressed as an integer or the quotient of an integer divided by a nonzero integer.
Answer:
here is the definition of irrational and rational numbers
PLEASE HELP ITS A MATH PROBLEM Consider the following two functions:Which statement is NOT true?
Answer:
D) g(1) > f(1)Step-by-step explanation:
Compare the relevant values of functions. They are given in the table for function g(x) and on the graph for function f(x).
A) f(3) = 2, g(3) = 7 ⇒ f(3) < g(3), TRUEB) g(0) = 4, f(0) = 8 ⇒ g(0) < f(0), TRUEC) f(2) = 4, g(2) = 4 ⇒ f(2) = g(2), TRUED) g(1) = 3, f(1) = 6 ⇒ g(1) > f(1), Not TRUEAnswer:
g(1) > f(1)
Step-by-step explanation:
Based on the graph :
f(1) = 7 and g(1) = 3The statement is :
g(1) > f(1)3 > 7This is not true5. A pyramid with a triangular base has a volume of 80 cubic meters and a base
area of 20 square meters. Find the height of the pyramid.
The height of the triangular pyramid will be equal to H=12 feet.
What is a triangular pyramid?A triangular pyramid is a pyramid having triangular faces the other sides of the pyramid are simliar triangles.
It is given that:-
The Volume of the pyramid=80 cubic meters
The Base area of the pyramid=20 square meters
The height of the pyramid=?
We know that the volume of a pyramid is given as:-
V=(1÷3)x Base area x height
V=(1÷3)x20 x H
H=(80x30)÷20
H=12 feet
Hence the height of the triangular pyramid will be equal to H=12 feet.
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The mass of lab sample A is 2.4 x 10^-2 kg. The mass of lab sample B is 3.6 x 10^2 kg. Given that information, Jason says that sample B is 15 times the mass of sample A. Narissa asserts that sample B is 15,000 times that of sample A. Julius states that sample B is 1.5 times greater than sample A.
Compare the masses of the two samples to decide who is correct. State which person is correct and explain your answer using mathematics.
Narissa is right sample B is 15,000 times that of sample A
What is mass?The quantity of matter that any object contains is called the mass of the body.
It is given that:-
The mass of lab sample A is 2.4 x 10^-2 kgThe mass of lab sample B is 3.6 x 10^2 kgSo the mass will be given as:-
[tex]\dfrac{B}{A}=\dfrac{3.6\times 10^2}{2.4\times 10^{-2}}[/tex]
[tex]\dfrac{B}{A}=15000[/tex]
B = 15000 B
Therefore Narissa is right sample B is 15,000 times that of sample A
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Find the radian measure of the central angle of a circle of radius 12 that intercepts an arc length 32.5. Round to the nearest hundredth.
is 0, 3, 8, 15, 24, 35 an arithmetic sequence
Answer:
Yes, the sequence is an arithmetic sequence
Step-by-step explanation:
Notice that each consecutive number is being added by the next odd number up:
0+3=3
3+5=8
8+7=15
15+9=24
24+11=35
We can represent this as the arithmetic sequence [tex]a_n=n(n+2)[/tex]
will give brainliest
Answer:
Here is your answer
Step-by-step explanation:
Bearing from point A to B, can be calculated as,
beta = atan * 2(X, Y)
where, X and Y are two quantities and can be calculated as:
X=cos theta b^ * s AL
Y=cos theta a^ * sin theta b-sin theta a^ * cos theta b^ * cos Delta l put the values and calculate
50 POINTS! Use the Parabola tool to graph the quadratic function.
f(x)=(x+4)^2 −6
Graph the parabola by first plotting its vertex and then plotting a second point on the parabola.
General equation
y=a(x-h)²+kBy observing y=(x+4)²-6
Vertex is at (-4,-6)a is 1So
The parabola graph is attached
Answer:
See below ~
Step-by-step explanation:
Given :
f(x) = (x+4)² − 6
f(x) = a(x + h)² + k
The vertex of the graph is (-4, -6)Compressibility factor (a) is equal to 1Another point on the parabola :
Take x = 1f(1) = (1 + 4)² - 6f(1) = 25 - 6f(1) = 19The second point is (1, 19)Graph :
One month Jessica rented 4 movies and 8 video games for a total of $61. The next month she rented 2 movies and 3 video games for a total of $25. Find the rental cost for each movie and each video game.
Answer:
A movie costs $4.25 and a video game $5.5.
Step-by-step explanation:
Step 1: Form the equations.
Let m be the price of a movie and v the price of the video game.
First equation: One month Jessica rented 4 movies and 8 video games for a total of $61.
[tex]4m + 8v = 61[/tex]
Second equation: The next month she rented 2 movies and 3 video games for a total of $25.
[tex]2m + 3v = 25[/tex]
Step 2: Solve the system of equations.
[tex]\text{(1.) } 4m + 8v = 61\\\text{(2.) } 2m + 3v = 25[/tex]
I'm going to solve them by elimination. I'll multiply the second equation with two so I get 4m.
[tex]\text{(1.) } 4m + 8v = 61\\\text{(2.) } 4m + 6v = 50[/tex]
Now I'm going to subtract the second equation from the first.
[tex](4m + 8v) - (4m + 6v) = 61 - 50[/tex]
And solve.
[tex]8v- 6v = 61 - 50\\2v = 11\\v = \frac{11}{2}\\v = \$5.5[/tex]
Now let's insert v back in second equation to get m (nicer numbers, you can insert in first too if you want).
[tex]4m + 8v = 61\\4m + 8(5.5) = 61\\4m + 44 = 61\\4m = 61 - 44\\4m = 17\\m = \frac{17}{4}\\m = \$4.25[/tex]