Answer:
-27=13
a=19/a
a=2b−c/2−5/2
Step-by-step explanation:
Evaluate. 68.14 + 0.0007
Answer:
68.1407 us the answer
Step-by-step explanation:
Just add
What is the sales tax on a chair with a price tag of $180, if the tax rate is 5.75%?
Answer:
$190.35
Step-by-step explanation:
180 ⋅ 0.0575 = 10.35
Add 180 to 10.35
$190.35
(I could be wrong. Sorry if I am)
Hope I helped :)
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Can someone help me know how to do this problem In finding what I can put in for (c) in order to get 2 imaginary solutions
Answer:
To get 2 imaginary solutions, c must be less than -2
Step-by-step explanation:
The general form of the quadratic equation is:
[tex]ax^2+bx+c=0[/tex]
Solve the quadratic equation by using the formula:
[tex]\displaystyle x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]
The equation to solve is:
[tex]-2x^2+4x+c=0[/tex]
In our equation: a=-2, b=4, c=unknown
For the roots to be imaginary, the argument of the square root must be negative, that is:
[tex]b^2-4ac<0[/tex]
Substituting the known values:
[tex]4^2-4(-2)c<0[/tex]
[tex]16+8c<0[/tex]
Subtracting 16:
[tex]8c<-16[/tex]
Solving:
[tex]c<-2[/tex]
Thus, to get 2 imaginary solutions, c must be less than -2
What is the sales tax on a $14,500 truck if the tax rate is 9%. What is the total price of the truck
after the sale tax?
Answer:
in order to find percentages you have to multiply the base cost by the tax and then divide it by 100
Step-by-step explanation:
base price is 14500
tax rate is 9 percent
(14500 × 9 ) ÷ 100
or you can just do this
14500 × 0.09 = 1305
since multiplying by 9 then dividing by 100 is equal to multiplying by 0.09 (9/100)
14500+1305= 15805
If f(x) = 5x +3, find f(4)
WILL MARK BRINLIEST. Can someone help me wit den two questions?
1.) Given the equation y = 4x + 7, what is the slope of the line?
a.) 7
b.) 4
c.) -7
d.) Not enough information
----------------------------------------------------------------------------------------------------------
2.) Given the equation y = 4x + 7, which of these points is on the line?
a.) (4, 7)
b.) (4, 0)
c.) (0, 7)
d. (0, 4)
Answer:1. B 2. D
Step-by-step explanation:
Answer:
1-b 2-c
Step-by-step explanation:
Solve for q in the proportion.
Answer:
15
Step-by-step explanation:
Step 1:
12/28 = q/35 Equation
Step 2:
28q = 420 Multiply
Step 3:
q = 420 ÷ 28 Divide
Answer:
q = 15
Hope This Helps :)
16.One night, the temperature decreased at a rate of 0.6 degrees per hour. How many
hours did it take for the temperature to drop 2.7 degrees?
A 4 1/4 hours
B 4 1/2 hours
C 5 1/4 hours
D 4 3/4
Answer:
B.
2.7÷0.6= 4.5/ 4 1/2
mark as brailiest pls
How many raisins are left in a jar of 37 raisins after you have eaten some? The equation _______ best models this situation. A. R= 37+N B. R=37/N. C. R= N/37. D. R=37-N
Answer:
D
Step-by-step explanation:
if you have 37 and however many you eat you subtract from that 37 giving you R
What are the two words that allow you to check your division problem backward?
Answer:
inverse operation
Step-by-step explanation:
Inverse means opposite. The opposite of division is multiplication. For example, if you divided 15 by 3, the answer is 5. If you multiply 5 by 3, the answer is 15. You know your answer is correct by checking it with the inverse operation.
Hope this helps!! Have a wonderful day :3
We went to the market to buy some fruit. We decided to buy some apples, strawberries, and oranges. If we buy 2 apples, 3 boxes of strawberry, and 4 oranges, the fruit would cost $15.30. If we buy 1 box of strawberry, 4 apples, and 2 oranges, the fruit would cost $10.90. If we buy 1 orange, 5 apples and 2 boxes of strawberry, the fruit would cost $13.70.
Answer:
The answer is below
Step-by-step explanation:
Let x represent the cost of apples, y represent the cost of strawberries and z represent the cost of oranges.
The money used to buy 2 apples, 3 boxes of strawberry, and 4 oranges is represented as:
2x + 3y + 4z = 15.3 (1)
The money used to buy 4 apples, 1 boxes of strawberry, and 2 oranges is represented as:
4x + y + 2z = 10.9 (2)
The money used to buy 5 apples, 2 boxes of strawberry, and 1 oranges is represented as:
5x + 2y + z = 13.7 (3)
Solving equation 1, 2 and 3 simultaneously gives:
x = $1.5, y = $2.5 and y = $1.2
The cost of orange is $1.5, cost of strawberry = $2.5 and cost of orange = $1.2
A 12-foot ladder that is leaning against a wall makes a 75.5 degree angle with the level ground.
Which of the following equations can be used to determine the height y, above the ground, in feet, that the ladder touches the wall
A. Sin 75.5 = 12/y
B. Cos 75.5 = y/12
C. Sin 75.5 = y/12
D. Cos 75.5 = 12/y
Answer:
C. Sin 75,5 = y/12
Step-by-step explanation:
This angle can be calculated using the law of sine:
sin(angle)=opposite cathete/hypothenuse
sin(angle)=wall/ladder
In this exercise we want to calculate the height of the ladder, so the equation is changed afterwards.
sin(angle)=wall/ladder
sin(75,5°)=12ft/y
The height y above the ground in feet is ; (C ) sin 75.5 = y / 12
Determine the equation that can be used to determine y
The ladder, the horizontal ground and the vertical height above the ground form a right angle triangle are ;
The vertical height y = opposite
Length of ladder = hypotenuse
Horizontal ground = adjacent.
According to trigonometry, sine of an angle is opposite/hypotenuse
sin 75.5 = y/12.
In conclusion, the height y above the ground in feet is sin 75.5 = y / 12.
learn more about right-angled triangle: brainly.com/question/20889881
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Here are the ingredients for making pineapple sorbet for 6 people.
800 g pineapple
4 egg whites
1/2 lemon
100 g caster sugar
Ann makes pineapple sorbet for 9 people.
Work out how much pineapple she uses.
A group of 5 friends shares 35 pieces of candy equally. How many pieces of candy does each friend receive?
I need help !!!
Answer:
7 pieces of candy each friends have
Step-by-step explanation:
35 ÷ 5 = 7
5 × 7 = 35
so the answer is 7
Each friend will receive 7 pieces of candy after dividing it equally.
What is division?
" Division is the method of distributing or sharing any group of items equally."
According to the question,
Total pieces of candy = 35
Total number of friends= 5
Division of candy between 5 friends
Number of candy each friend will received = 35 ÷ 5
= 7pieces
Hence, Each friend will receive 7 pieces of candy.
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I need help
Will mark brainliest
Answer:
sorry about my writing I know is awful.
Write and equation for a line perpendicular to 3y+15x=-12 and passing through the point (5,6)
Step-by-step explanation:
I am not sure sorry for doing it Innist need points
How would an inscribed dodecagon compare to the area of a circle?
underestimate of the circle
overestimate of the circle
same as the circle
does not compare
Answer:
I think the answer is underestimate of the circle
Step-by-step explanation:
I believe it is underestimate because the dodecagon is inside the circle, therefore smaller than the circle. It wont fill the circle completely so that is why i think it is underestimate. I hope this helps, if not I am really deeply sorry!!!!!
1)
What number is 4 times as many as 25?
Answer:
100
Step-by-step explanation:
Mr. Peterson can iron 2 shirts in 6 minutes.
At this same rate, Mr. Peterson can iron blank
shirts in 21 minutes.
Answer:
7
Step-by-step explanation:
he can iron 7 in 21 minutes
hope this helps
Helppp. Me bad at math. Plsss I am giving out brainliest
Answer:
SO I know y=7.5
z=square root(5/3)
Step-by-step explanation:
2y+23=4y+8
2y+15=4y
15=2y
7.5=y
3z^2 -5=0
3z^2=5
z^2=5/3
z=square root of 5/3
The price of stock market in at 9 AM was 13.17 then the price has been increasing at a rate of 0.11 each hour at noon the price of stuff he was 13.67 it begins to decrease at the rate of 0.12 each hour if the two rates continue and how many hours were the prices of the two stocks with the same
Answer:
2.26 hours
Step-by-step explanation:
Given that:
Stock 1:
Initial price = 13.17
Rate of increase = $0.11 per hour
13.17 + 0.11h - - - (1)
Stock 2 :
Initial price = 13.69
Rate of decrease = 0.12 per hour
13.69 - 0.12h - - (2)
13.17 + 0.11h = 13.69 - 0.12h
0.11h + 0.12h = 13.69 - 13.17
0.23h = 0.52
h = 0.52 / 0.13
h = 2.26 hours
Mr. Webb had 90.66 feet of wood. If he gave Jim 15.4 feet, Allison 20.69 feet and Cory
32.02 feet, how much does he have left?
Answer:
22.55 ft of wood is what mr. webb will have left
What is a integer between saure root of 30 and 4/3
9514 1404 393
Answer:
any of 2, 3, 4, 5
Step-by-step explanation:
√30 ≈ 5.48
4/3 ≈ 1.33
Integers between 1.33 and 5.48 include 2, 3, 4, 5. Any of these is an integer between √30 and 4/3.
The lines below are perpendicular . If the slope of the green line is 3/2 , what is the slope of the red line?
Answer:
If i recall right when two slopes are perpendicular one slope is supposed to be the negative reciprical of the other slope, because of this I think your answer should be B.
Hope this helps!
In a survey of 1,300 people who owned a certain type of car, 650 said they would buy that type of car again. What percent of the people surveyed were satisfied with the car? 416416% of the people surveyed were satisfied with the car.
Answer:
50%
Step-by-step explanation:
650 is one half of the 1,300
That means that 650 is 50% of people who were satiufired out of 1,300
What percent of 50 is 125? Use the percent equation.
A. 125 = n(50); 2.5%
B. 50 = n(125); 40%
C. 125 = n(50); 250%
D. 50 = n(125); 0.4%
Answer:
B 50=n(125) 40%
Step-by-step explanation:
The percent equation, 125 = n(50); 250%
What is percent?A number or ratio which can be expressed as a fraction of 100 is referred to as a percentage in mathematics. If we need to calculate a percentage of a number, we should divide it by its entirety and then multiply it by 100. The percentage therefore refers to a part per hundred. Per 100 is what the word percent means. The letter "%" stands for it. There is no dimension to percentages. As a result, it is known as a dimensionless number. When we say a number is 50% of something, we mean that it is 50% of everything.
As in 0.6%, 0.25%, etc., percentages can also be expressed as decimals or fractions. The grades earned in any subject have been calculated in terms of percentages in academics.
Let the required percentage be x%.
A/c to question,
[tex]\frac{x}{100} * 50= 125\\\\ x=250[/tex]
That is, required percentage is 250%.
Hence, option C is correct.
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Please help! Slope parallel to line y = 2x/3 + 4
Answer:
2/3
Step-by-step explanation:
I think you meant y=2/3x+4 because what you wrote the correct equation for slope, but anyway the slope would be 2/3 because if lines are parallel, they have the same slope.
I hope this helps!
Which set of ordered pairs represents a function?
O{(-5,-4), (-4, -7), (-4,-4), (2,3)}
o {(-1,6), (8,-5),(-3,-5), (3, -6)}
O {(8,0), (-6,8), (-8,4), (-6,7)}
O {(4,5), (-6,4), (7,-6), (4, 2)}
Find the measure of ∠7.
Given:
∠1 is a right angle
∠3 = 37°
∠8 =62°
A. 53°
B. 65°
C. 105°
D. 127°
E. 245°
Answer:
The answer is B: 65.
Angle 8 + angle 7 = right angle + 37 degree
, 62 degree + angle 7 = 127 degree
, angle 7 = 127 degree - 62 degree
, = 65 degree
Which single conversion factor would you use to find out how many miles are in 8,462 yards?
Answer:
A. 1 mile / 1,760 yards
Step-by-step explanation:
A single conversion factor is a number that we can multiply directly with 8,462 yards to determine how many yards are there in 8,462 yards.
Since 1 mile is to 1,760 yards, the single conversion factor to use in determining how many miles a number of yards would be = 1 mile/1,760 yards = [tex] \frac{1}{1,760} [/tex]
Thus, to find out many miles are in 8,462 yards, multiply by [tex] \frac{1}{1,760} [/tex].
[tex] 8,462*\frac{1}{1,760} = \frac{8,462}{1,760} = 4.8 [/tex] miles
