Answer:
x^2 -2x -35 = 0
Step-by-step explanation:
Lets's solve backwards
x = -5
Add 5 to both sides
x + 5 = 5 - 5
x + 5 = 0
and
x = 7
Subtract 7 from both sides
x - 7 = 7 - 7
x - 7 = 0
Finding the product of both linear functions
(x + 5)(x - 7) =0
x^2 -7x + 5x -35 =0
x^2 -2x -35 = 0
15. The vertices of A DEF are D(0,0), E(0,7), and F(6,3).
Find the coordinates of the orthocenter of A DEF.
Orthocenter of a triangle with one vertex at the origin D(0,0), E(0,7), F(6,3)
The orthocenter is the meet of the altitudes.
DE is the line x=0. That's the y axis. The altitude is the perpendicular through F(6,3), so is the horizontal line y=3.
DF is the line
6y=3x
y=(1/2)x
Perpendicular through E(0,7) is
y - 7 = (-2)(x - 0)
y = -2x + 7
That's the other altitude. Intersecting with y=3
3 = -2x + 7
-4 = -2x
x = 2
y = 3
Answer: orthocenter is (2,3)
What expression can be used to determine the total cost of buying G pounds of granola for $3.25 per pound and F pounds of flour for $0.74 per pound
Answer: 3.25G + 0.74F = t
Step-by-step explanation: For this problem we will write an expression to represent this situation.
Let total cost be equal to t.
3.25G + 0.74F = t
The expression above states that at $3.25 per pounds of granola and $0.74 per pounds of flour, you will find the total cost of buying both, which is t.
The total cost of buying G pounds of granola at $3.25 per pound and F pounds of flour at $0.74 per pound can be calculated using the expression (G × $3.25) + (F × $0.74).
Explanation:To determine the total cost of buying G pounds of granola at $3.25 per pound and F pounds of flour at $0.74 per pound, you can use the following expression:
Total Cost = (G × $3.25) + (F × $0.74)
This expression multiplies the number of pounds of granola (G) by its price per pound and adds it to the product of the number of pounds of flour (F) and its price per pound. To find the total cost, simply substitute the values for G and F into this expression and calculate the sum.
|28−x| =0
plz help show steps
Answer:
x=28
Step-by-step explanation:
|28-x|=0
|28-28|=0
x=28
The side of a ramp is to be painted. The ramp has a
length of 11.1 feet, reaches a height of 1.5 feet, and
runs 11 feet on the ground. What is the area of the
space that will be painted? If necessary, round to the
nearest tenth.
The area of the painted space is
square
11.1 ft
1.5 ft
feet
11 ft
Please Help!!
Answer:
8.3
Step-by-step explanation:
Apply the distributive property to create an equivalent expression.
(6m – 7). 4=
Answer: 24m-28
Step-by-step explanation:
According to the distributive property ,
[tex]a(b+c) = ab+ac[/tex]
[tex](b+c)a = ba+ca[/tex] , where a, b and c are any arbitrary expressions.
Given expression : [tex](6m-7)\cdot4[/tex]
By using distributive property , we have
[tex](6m - 7)\cdot 4= (6m)(4)-(7)(4)\\\\= (6)(4)(m)-28 \ \ \ [\text{By associative property}]\\\\=24m-28[/tex]
Hence, the required equivalent expression is 24m-28.
Answer:
24m-28
Step-by-step explanation:
24m-28
Write an algebraic expression for: the product of 12 and x divided by the sum of 4 and x
Answer:
12x / (4+x)
Step-by-step explanation:
product of 12 and x
12x
Divided by
12x /
sum of 4 and x
(4+x)
12x / (4+x)
Answer:
12x/(4+x)
Step-by-step explanation:
product of 12 and x: 12x
divided by
the sum of 4 and x: 4 + x
12x/(4+x)
Adan can do a piece of work in 3 days, Bernie in 4 days, and Cynthia in 6 days each working alone.
How long will it take them to do it working together?
Please include how you did it.
Answer:
1 day and 8 hours
Step-by-step explanation:
Adan does 1/3 work each day,
Bernie does 1/4 work each day, and
Cynthia does 1/6 work each day
combined they accomplish 3/4 each day
therefore it would take them 1 day and 8 hours
By adding the individual work rates of Adan, Bernie, and Cynthia, we find that they could complete the task in a total time of 1.5 days when working together.
Explanation:In this question, the rates at which Adan, Bernie, and Cynthia can complete a piece of work are given. This information can be used to calculate how long it would take for them to complete the work together.
Adan can do the job in 3 days, so his work rate is 1/3 of the job per day. Bernie's work rate is 1/4 of the job per day, and Cynthia's work rate is 1/6 of the job per day.
The combined work rate of Adan, Bernie, and Cynthia per day would be the sum of their individual work rates which is (1/3 + 1/4 + 1/6). This sums up to 4/6 or 2/3. The time required for them to finish the job together is the reciprocal of the total work rate which is 3/2 and that equals to 1.5 days.
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What type of triangle has three angles whose measure are less than 90°?
Answer:
acute
Step-by-step explanation:
it is an acute triangle
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
P.S. Hello from Russia :^)
\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
Write an equation m=1/3 through (4,4)
Answer:
y - 4 = 1/3(x - 4)
y - 4 = 1/3x - 4/3
y - 12/3 = 1/3x - 4/3
y = 1/3x + 8/3
Step-by-step explanation:
The slope of a line can be expressed in the form y = mx + b. Given m = 1/3 and a point (4,4), we can substitute these into the equation to find b. The equation of the line is thus y = 1/3x + 8/3.
Explanation:In mathematics, an equation of a line is often written in the slope-intercept form, which is y = mx + b. The term 'm' represents the slope of the line, while 'b' is the y-intercept.
In the question, the value 'm' is provided as 1/3, and one point through which line passes is (4,4). We can substitute the value of 'm' and the coordinates of the point into the equation to solve for 'b'.
So, y = mx + b becomes 4 = (1/3)*4 + b. Simplify this to solve for b, hence b=4-(4/3) which gives 'b' as 8/3.
Therefore, the equation of the line becomes y = 1/3x + 8/3.
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Are the data shown in this line plot skewed left, skewed right, or not skewed? 45 47 49 51 53 55
Answer:
it is skewed left
Step-by-step explanation:
i know it looks like more of the data is on the right side then you think it is skewed right but it is always the opposite.
hope i helped
what does positive correlation mean?
Answer:A positive correlation is a relationship between two variables such that their values increase or decrease together.
Step-by-step explanation:
Positive correlation is a relationship between two variables in which both variables move in tandem—that is, in the same direction. A positive correlation exists when one variable decreases as the other variable decreases, or one variable increases while the other increases.
What is the area of this composite shape enter you answer in the box
Answer:
2496
Step-by-step explanation:
BRAINLIEST PLEASE?????
Answer:
the area is 53
Step-by-step explanation:
triangle = 5
rectangle = 48
Find the measure of arc DBC in circle P.
Answer:
122°
Step-by-step explanation:
The measure of arc DBC in circle P is calculated thus:
DBC = 180° - 58° (sum of angles on a straight line)
DBC = 122°
Therefore, the measure of arc DBC in circle P is 122°.
Note,
Line BD is a straight line; thus, sum of angles on a straight line is 180°.
Angle BPC is 58°. To determine angle DPC, we subtract 58° from 180°, such that, 180° - 58° = 122°.
what is -2.67811 rounded to the nearest hundreth
Answer:
-2.68
Step-by-step explanation:
any number from 5 and up after the number makes it go up one
in training for a race, each day aylin ran 1.5% further than the day before. if on the 27th day of training she ran approx 6 miles approx how many miles did she run on the first day of training? Round to the nearest integer
Answer: 5%
Step-by-step explanation:
Please help on number 5, multiple choice
Answer: Post a picture of the question.
Step-by-step explanation:
In a sample of people in the school district, 16 out of 25 favored building a new football stadium. If 6,000 people vote in the next local election, how many are likely to vote in favor of the new football stadium based on this sample?
Using the sample proportion of 64% favoring the new stadium, we predict that approximately 3,840 out of 6,000 voters would vote in favor of the new football stadium.
In the sample provided, 16 out of 25 people favored building a new football stadium, which is a proportion of 64% favoring the stadium. To predict how many people are likely to vote in favor of the new football stadium in the local election with 6,000 voters, we use this sample proportion.
The calculation is straightforward:
First, convert the percentage to a decimal: 64% = 0.64.Then, multiply the total number of voters by this decimal: 0.64 * 6,000 = 3,840.Based on the sample, approximately 3,840 people are likely to vote in favor of building the new football stadium in the next local election.
At a carnival, 700 tickets were sold for a total amount of $5000. An adult ticket cost $10 and a children's ticket cost $5. Find the number of adult tickets (x) and the number of children's tickets (y) sold.
Answer: 400 adult tickets and 300 kids tickets
Step-by-step explanation:
Which of the following sentences is in the active voice?
A
The tractor was driven across the field.
B
The field was plowed by the farmer.
C
The grass had been eaten by the cows.
D
The family planted the seeds.
Answer:
D.) The family planted the seeds.
please give this brainliest :)
Step-by-step explanation:
Active voice means that a sentence has a subject that acts upon its verb.
This sentence is showig this when it says they planted seeds
What is the factored form of x2 - 4x - 5?
ОООО
о(х + 5)(х – 1)
о(х+ 5)(х + 1)
О(х - 5)(х – 1)
О (х – 5)(х + 1)
Answer:
Option D, (x - 5)(x + 1)
Step-by-step explanation:
Step 1: Factor
[tex]x^2 - 4x - 5[/tex]
[tex]x^2 - 5x + x - 5[/tex]
[tex](x - 5)(x + 1)[/tex]
Answer: Option D, (x - 5)(x + 1)
Answer:
(x-5) (x+1)
Step-by-step explanation:
x^2 -4x -5
What two numbers multiply to -5 and add to -4
-5*1 = -5
-5+1 = -4
(x-5) (x+1)
A basketball player made 75 baskets in a season. Of these, 8% were three-point shots. How many three-point shots did the player make?
Answer:
6
Multiply 75 by .08, because that's 8% in decimal from.
Answer: 6 shots. (Could I get brainiest)
Step-by-step explanation: Multiply 75 baskets by 8% as a decimal which is .08, Then when you get your answer (600) move your decimal point to the left two times and you have 6 as your answer.
pleasee help mee
12sin(x)-5cos(x)=6,5
We turn -5,12 into polar coordinates. It's a Pythagorean Triple so
r = 13 Ф=arctan(-12/5) + 180° ( in the second quadrant )
so -5 = 13 cos Ф, 12 = 13 sin Ф
12 sin x - 5 cos x = 6.5
13 sinФ sin x + 13 cos Ф cos x = 6.5
13 cos(x - Ф) = 6.5
cos(x - Ф) = 1/2
cos(x - Ф) = cos 60°
x - Ф = ± 60° + 360° k integer k
x = Ф ± 60° + 360° k
x = 180° + arctan(-12/5) ± 60° + 360° k
That's the exact answer;
x ≈ 180° - 67.38° ± 60° + 360° k
x ≈ 122.62° ± 60° + 360° k
x ≈ { 62.62°, 182.62°} + 360° k, integer k
help me!!!! study island question.
Answer:
D
Step-by-step explanation:
1/4=3/12
1/3=4/12
4/12 +3/12= 7/12
7/12 divided by 3/1
7/12 x 1/3
=7/36 of a pound
A square has sides with lengths of (x - 2) units. A rectangle has a length of x units and a width of
(x - 4) units.
Which statements about the situation are true? Select all that apply.
The area of the square is greater than the area of the rectangle.
B
The area of the square is (x2 - 4) square units.
The value of x must be greater than 4.
The difference in the areas is 4x -4.
The area of the rectangle is (x2 - 4x) square units.
Final answer:
The correct statements are the area of the rectangle is x^2 - 4x square units, the difference in areas is 4x - 4, and if x > 4, the area of the square could be greater than, equal to, or less than the area of the rectangle, depending on x.
Explanation:
When analyzing the given geometric shapes, a square with sides of length (x - 2) and a rectangle with dimensions x by (x - 4), a number of true statements can be identified:
The area of the square is (x - 2)2 or x2 - 4x + 4 square units.
The area of the rectangle is x(x - 4) or x2 - 4x square units.
If x > 4, then the area of the square could be greater than, less than, or equal to the area of the rectangle, depending on the value of x.
The difference in the areas is (x - 2)2 - (x(x - 4)) which simplifies to 4x - 4.
Therefore, the correct statements are that the area of the rectangle is (x2 - 4x) square units, and if x is greater than 4, the area of the square could be greater than the area of the rectangle, depending on x. The difference in the areas is indeed 4x - 4. However, the area of the square is not (x2 - 4) square units as previously stated.
Simplify the expression. Use standard polynomial format.
x(2x + 3) + (x - 3)(x - 4)
Answer:
x(2x + 3) + (x - 3) (x - 4) = 3x²- 4x + 12
Step-by-step explanation:
Expand:
x(2x + 3): 2x² + 3x
2x² + 3x + (x - 3) (x - 4)
Expand:
(x - 3) (x - 4): x²- 7x + 12
2x² + 3x + x²- 7x + 12
Simplify:
2x² + 3x + x² - 7x + 12: 3x² - 4x + 12
= 3x² - 4x +12
Four students took a national standardized test for which the mean was 500 and the standard deviation was 100. If a student's value was 1:75 on the test, what was the student's score?
a. 675
c. 645
b. 650
d.700
Answer:
560 has 0.6 z-value, 450 has -0.5 z-value, 640 has 1.4 z-value, 530 has 0.3 z-value
Step-by-step explanation:
I had this qution on a test on time
please mark me as brainliest
Answer: The answer is A) 675
Step-by-step explanation: Take each answer choice and subtract it from 500 and divide by 100 until one of them gives you the answer of 1.75
Geneva treated her parents to dinner at their favorite restaurant the bill was $74.25 Geneva wants to leave 16% of the total tip how much should be the tip
Answer: The tip would be $11.88.
Step-by-step explanation: Basically, to find the tip of the bill you need to multiply the total, $74.25 by the tip amount which is 16%. To do this you will first need to convert 16% to a decimal. To find the decimal, divide 16 by 100 to get 0.16. Next, you will need to multiply the total of the bill $74.25 by the decimal 0.16. 74.25 multiplied by 0.16 is 11.88. So, the tip would be $11.88.
Amount of tip is $11.88
Percentage based sum:Given that;
Amount paid for dinner = $74.25
Percentage of tip = 16% = 0.16
Find:
Amount of tip
Computation:
Amount of tip = (Amount paid for dinner)(Percentage of tip)
Amount of tip = (74.25)(0.16)
Amount of tip = $11.88
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What is the arc measure of AC on circle P in degrees?
Given:
∠APE and ∠EPD are congruent.
To find:
The measure of arc AC.
Solution:
Complete angle of a circle = 360°
m∠APE + m∠EPD + m∠DPC + m∠CPB + m∠BPA = 360°
m∠APE + m∠APE + 42° + 74° + 136° = 360°
2 m∠APE + 252° = 360°
Subtract 252° from both sides.
2 m∠APE + 252° - 252° = 360° - 252°
2 m∠APE = 108°
Divide by 2 on both sides.
m∠APE = 54°
Given ∠APE and ∠EPD are congruent.
m∠EPD = 54°
m∠APC = 54° + 54° + 42°
= 150°
The measure of central angle is congruent to the measure of the intercepted arc.
m(ar AC) = m∠APC
m(ar AC) = 150°
The arc measure of AC on circle P is 150°.
please help me I need help
Answer:
[tex] |28 - x| = 0 \\ 28 - x = 0 \\ - x = - 28 \\ x = 28[/tex]
Answer:
x = 28.
Step-by-step explanation:
|28 - x| = 0
28 - x = 0
28 = x.
The absolute value makes no difference to the result as we have 0 on the right side.
Steven purchases a bowl. THe diameter of the bowl is 14cm. What is the area of the bowl?
Answer: 153.86cm
Step-by-step explanation:
A bowl represents a circle
Area of a circle is pir2
But here we are given the diameter as 14
Diameter = 2radii
14=2r
R=14/2
R=7
So radius of the bowl is 7cm
Back to the formula
Area of a circle is pir2
Pi=3.14
Substitute for each value
Area= 3.14×7^2
Area= 3.14×49
Area= 153.86cm
Area= ~154cm
Answer 7?
Im not 100% sure. It is probably wrong