Answer:
340 cars
Step-by-step explanation:
400*0.85
which is 340
340 cars.
Hope this helps plz hit the crown :D
find all the zeros of the quadratic function
[tex]y = x^{2} - x - 20[/tex]
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[tex]y = {x}^{2} - x - 20[/tex]
[tex]y = (x - 5)(x + 4)[/tex]
To find the zeroes , Just need to put 0 instead of y .
[tex]0 = (x - 5)(x + 4)[/tex]
[tex](x - 5)(x + 4) = 0[/tex]
_________________________________
Hint :
[tex]a \times b = 0[/tex]
[tex]a = 0 \: \: \: or \: \: \: b = 0[/tex]
_________________________________
[tex]x - 5 = 0[/tex]
Add sides 5
[tex]x - 5 + 5 = 0 + 5[/tex]
[tex]x = 5[/tex]
Or
[tex]x + 4 = 0[/tex]
Subtract sides 4
[tex]x + 4 - 4 = 0 - 4[/tex]
[tex]x = - 4[/tex]
Thus the zeroes are :
( - 4 , 0 ) and ( 5 , 0 ) .
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verbal expression for the following numerical expression: ( 4 + 9 ) x 3
Answer:
I don't know if I'm doing this 100% correctly but I would put:
four plus nine's total multiplied by 3
how do you calculate the area and perimeter of a slope triangle?
Answer:
How you find the area of a triangle is by, multiplying two of the sides together then multiplying that by 1/2 or .5 . To find the perimeter of the triangle add all the three sides together!
Step-by-step explanation:
if BD and EG are parallel lines and m∠DCF = 125°, what is m∠DCA
Answer:
55
Step-by-step explanation:
FCA equals 180 degrees so you subtract 180 from 125 and get 55 degrees.
Answer:
55
Step-by-step explanation:
Just subtract 180 and 125
You said that m∠DCF = 125° right?
And the m∠DCF and m∠DCA are linear pair because they have angles that share a side, so supplementary angles = 180
m∠DCF + m∠DCA = 180
replace (since m∠DCF = 125):
125 + m∠DCA = 180
-125 -125
m∠DCA = 180 - 125
m∠DCA = 55
factor the expression 2.3 + 15 + 30
PLease please help idk how to do this
Answer: its 47.3
Step-by-step explanation: factor the polynomial
Answer: 47.3
simple addition
30+15=45
45+2.3=47.3
Solve the equation.
4(z – 3) = 22
Answer: z=6
Step-by-step explanation:
4(z-3)=2z
4z-12=2z subtract 2z from both sides
2z-12=0 add 12 to both sides
2z=12 divide 2 to both sides
z=6
A pitcher's arm rotates at a speed of 777 degrees per millisecond \left( \dfrac{\text{degrees}}{\text{ms}} \right)(
ms
degrees
)left parenthesis, start fraction, start text, d, e, g, r, e, e, s, end text, divided by, start text, m, s, end text, end fraction, right parenthesis.
At what speed does the pitcher's arm rotate in \dfrac{\text{degrees}}{\text{s}}
s
degrees
start fraction, start text, d, e, g, r, e, e, s, end text, divided by, start text, s, end text, end fraction?
Answer:
7000degrees/sec
Step-by-step explanation:
The question is not properly structured. Here is the correct question.
A pitcher's arm rotates at a speed of 7 degrees per millisecond (degrees/ms) . At what speed does the pitcher's arm rotate in degrees/s?
Before we proceed, you must know that we will be applying the following conversion;
1 milliseconds = 10⁻³secs
Given
Speed of pitcher's arm in degree per milliseconds = 7deg/ms
Required
We are to express in degree/sec
Using the conversion formula above;
[tex]7deg/ms = \dfrac{7^0}{1millisecs} \\\\converting \ to \ deg/s\\7deg/ms = \dfrac{7^0}{1millisecs} \times \dfrac{1}{10^{-3}s}\\7deg/ms = \dfrac{7^0}{10^{-3}s}\\[/tex]
[tex]7deg/ms = 7^0 \times 1/0.001s\\7deg/ms = 7^0 \times 1000/s\\7deg/ms = 7000^0/sec\\[/tex]
Hence the value in degree/sec is 7000degrees/sec
m: -1/2 Point: (-1, 3) Solve for y=mx+b
Help
Answer:
y= (-1/2)x+(5/2)
Step-by-step explanation:
equation point slope
(y-y1)=m(x-x1)
y-3 = -1/2(x+1) add -3 to both sides and distribute
y=( -x/2) +(-1/2)+3 rewrite 3 as 6/2
y=(-1/2)x +(-1+6/2) solve
y= (-1/2)x+(5/2)
8 in. 8 in. 8 in Find the area of the figure above, [?] in
Answer:
96
Step-by-step explanation:
Total area = area of cube + area of triangle
A = 8² + [tex]\frac{8*8}{2}[/tex] = 64 + 32 = 96 in²
Answer:
96 square feet
to find the area of a triangle the formula is
A=1/2×b×h
8×8=64
1/2×8×8=32
32+64= 96
DUE 10:00 PM HELP ASAP. When Sarah left your house this morning her cell phone was 80% charged and then it started to lose 8% charge for each hour there after write an equation for B in terms of tea representing the charge remaining in series battery as percentage tea hours after Sara left her house
Answer:
y=80-8x
Step-by-step explanation:
Bc the 80 is what it started at and the x represents the hour
(In y=mx+b form)
please help me with these.. brainliest.
Answer:
it will be on platform 9 3/4
Step-by-step explanation:
Jason traveled 26 miles. The first 2 hours his speed was 4 mph, and the rest of the way his speed was 3mph. How long was he traveling?
Answer: 8 hours
Step-by-step explanation: You would first multiply 2 hours by 4 mph, and get 8 miles. You would then subtract 8 miles from 26 miles, and have 18 miles left. You would now divide 18 miles by 3, as he is now traveling 3 miles per hour and needs to travel 18 miles. You would get 6 hours. You would now add 6 hours by the 2 hours initially traveled at 4 mph, and get 8 hours.
A student finished a 30 question test in 75 minutes . Which rate best represents the relationship between the numbers of minutes spent on test questions and the number of questions?
Answer:
It dosent say at this rate so all you need is this
Minutes/ questions which your answer is
75/30
Each day, a local dog shelter spends an average of $2.40 on food per dog. The manager estimates the shelter's daily expenses, assuming there is at least one dog in the shelter, using the function E(x)= 30+2.40x . Which statements regarding the function are correct? *
I know... It's hard to study for quiz, test, and more right? In the end there is a * meaning that it is a question on google forms. I'll help you out though. DO NOT do this next time okay? :)
Step-by-step explanation:
10. Write an equation that represents the situation below. Then give a different combinations of coins that are possible, a piggy bank contains only dimes and quarters. The total amount inside the bank is $6.25.
Expand
(2x + 2)(x + 4
Answer:
2x^2+10x+8
Step-by-step explanation:
(2x+2)(x+4)
=(2x+2)(x+4)
=(2x)(x)+(2x)(4)+(2)(x)+(2)(4)
=2x^2+8x+2x+8
=2x^2+10x+8
Answer:
Work shown below!
Step-by-step explanation:
[tex](2x+2)(x+4)=2x^{2} +8x+2x+8=2x^{2} +10x+8[/tex]
Show your work: Solve for b, where A is the area of a rectangle, b is the length of the base of the rectangle, and h is the height of the rectangle. Ab h
Answer:
[tex]b = \dfrac{A}{h}[/tex]
Step-by-step explanation:
Given the formula for calculating the area of the rectangle as;
A = bh where;
b is the length of the base of the rectangle, and;
h is the height of the rectangle
Required
Make b the subject of the formula
Given
[tex]A = bh\\\\divide \ both \ sides \ by \ h\\\dfrac{A}{h} = \dfrac{bh}{h}\\ \dfrac{A}{h} = b\\Re-arrange;\\b = \dfrac{A}{h}[/tex]
Hence the value of b in terms of A and h is expressed as [tex]b = \dfrac{A}{h}[/tex]
[tex]3x^{2} +9x^{2}-9x+9[/tex]
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[tex]3 {x}^{2} + 9 {x}^{2} - 9x + 9 = [/tex]
[tex](3 + 9) {x}^{2} - 9x + 9 = [/tex]
[tex]12 {x}^{2} - 9x + 9 = [/tex]
[tex]3(4 {x}^{2} - 3x + 3) [/tex]
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At Pablo’s Pizza Pie, medium cheese pizzas cost $12.50, large cheese pizzas cost $15, and a 3-liter bottle of soda costs $2.50. Kevin purchased one bottle of soda and 5 pizzas for his party. If he spent exactly $70, what combination of medium and large pizzas did he purchase?
Answer:
3 medium and 2 large pizzas.
Step-by-step explanation:
70= 2.5+(12.50x+15y)
70-2.5=67.5
Possibilities
67.5=12.5(1)+15(4) FALSE(72.5)
67.5=12.5(4)+15(1) FALSE (65)
67.5=12.5(2)+15(3)FALSE(52.5)
67.5=12.5(3)+15(2)
TRUE (67.5)
u will get brainliest and all my points
Answer:
Step-by-step explanation:
The last step should be: using distributive property by taking out of parentheses the common factor √5
4√5 + 9√5 = √5(4 + 9) = 13√5
The error is made at the last step
it should be 13√5 instead of 13√10.
four bottles cost 2.5 dollars. Find the price of each bottle
is y=x/4 a proportional relationship
Answer:
yes
Step-by-step explanation:
The function f(x) = x/4 represents a proportional relationship.
What is a proportional relationship?Proportional relationships are relationships between two variables where their ratios are equivalent. A straight line represents a proportional relationship. Mathematically -
y = mx + b
(y - b)/x = m [m is constant]
or
y = mx
m = y/x [m is constant]
Given is the following function -
y = x/4
We have -
f(x) = x/4
Now, we know a straight line represents a proportional relationship. The general form of equation representing the proportional relationship is -
y = mx
where - [m] is constant
y = x/4
y = (1/4)x
On comparing, we get -
m = 1/4
Hence, the function f(x) = x/4 represents a proportional relationship.
Therefore, the function f(x) = x/4 represents a proportional relationship.
To solve more questions on proportional relationship, visit the link below-
brainly.com/question/19306970
#SPJ2
Can A Expert Answer This! Determine if the two triangles are congruent.
Answer:i say the answer is the first two and the last two
Step-by-step explanation:
Answer:
HL
Step-by-step explanation:
The figure is cut into 15 equal pieces. 2. Shade of the figure. 5
Answer:
Each equal part is called one-fourth or a quarter of the whole sheet. Thus, any whole can be divided into four equal parts and each part is one-fourth or a quarter of the whole. It is expressed as 1/4 and read as one over four or one upon four.
Step-by-step explanation:
Find the GCF of the following set of numbers
260, 80, 50
Answer:
10
Step-by-step explanation:
The factors of 50 are: 1, 2, 5, 10, 25, 50
The factors of 80 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80
The factors of 260 are: 1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260
In all of these numbers, we can see that 10 is common throughout and 10 is also the greatest factor all these numbers share.
Hope this helps you :)
Michelle drew a purple line that was 1/2 of an inch long then she drew a green line that was 1/6 of an inch long how much longer what is the purple line than the green line
Answer:
[tex]\dfrac{1}{3}[/tex]
Step-by-step explanation:
Given length of purple line = [tex]\frac{1}{2}\ inch[/tex]
Given length of green line = [tex]\frac{1}{6}\ inch[/tex]
To find:
How much longer is the purple line than the green line ?
Solution:
To find the required length, we have to subtract the length of green line from the length of purple line.
i.e.
The required answer =
[tex]\frac{1}{2}-\frac{1}{6}\\\text{Taking LCM of 2 and 6, we get 6}\\\Rightarrow \dfrac{3-1}{6}\\\Rightarrow \dfrac{2}{6}\\\Rightarrow \bold{\dfrac{1}{3}}[/tex]
Therefore, the answer is:
Purple line is [tex]\frac{1}{3}[/tex] of an inch longer than the green line.
4. A bottle contains 68 teaspoons of solution. The solution drops out of the bottle
at a constant rate during a 102-minute experiment. The bottle is completely empty
just as the experiment ends. At what rate does the number of teaspoons of
solution in the bottle change?
Answer:
The rate of solution change is 2/3 teaspoons per minute
Step-by-step explanation:
Here, we want to calculate rate
From what we have in the question,
68 teaspoons of solution dropped out entirely within 102 minutes
So the rate is takes to drop out per minute will be:
68/102 = 2/3 teaspoon per minute
Crew car wash is offering their unlimited “Works” package for 20% off the normal price of $720 per year . What is the annual cost of the unlimited works package with the discount?
Answer:
144
Step-by-step explanation:
It should be. I don't really know if there are answer choices or not.
QUICK I NEED HELP!!!
Liliana wants to determine the height of an enlarged photo that she plans to frame. The original photo was 11 inches wide by 14 inches high. The new photo will be 132 inches wide. What will the new height be? Round to the nearest inch if necessary.
104 inches
146 inches
154 inches
168 inches
Answer:
168
Step-by-step explanation:
photos are enlarged by a certain factor, divide the new width by the old width and youll get the factor (12).
You can then multiply the original height by 12 to get the answer
12 X 14 =168
Answer:
D: 168.
Step-by-step explanation:
Divide the new width by the old width to find the scale factor of 12. Then multiply 12 by the old length of 14 to get 168 the new length.
Help please ......
...
Answer:
2,4,3,1,5,3,2 is the answer
Step-by-step explanation: