Answer:
3x^2-10x+6=0
Step-by-step explanation:
3x^2-10x+6=0
Δ=10^2-4*3*6=100-72=28
V28=V4*7=2V7
x1=(10+2V7)/6=2(5+V7)/6=(5+V7)/3
x2=(5-V7)/3
Answer:
d
Step-by-step explanation:
edge
Susan works as a hostess where she makes $8.75 per hour. She also babysits and earns $10.00 per hour. Last week she made $165.00. If she worked 6hour more as a hostess than she did babysitting, how many hours did she babysit last week?
Answer:
6 hours as a babysitter and 12 hours as a hostess
In a class full of men and women,
3
5
of the class are women. What is the ratio of men to women in its simplest form?
Answer:
2:3
Step-by-step explanation:
3/5 women, that makes men 2/5, and total 5/5
men to women
2:3
The length of a rectangle is 7 cm more than 4 times the width. If the perimeter of the rectangle is 44 cm, what are its dimensions?
Answer:
3 by 19
Step-by-step explanation:
Select one of these options for each of the 4 questions
A. Exactly one pair of opposite sides of a trapezoid is parallel.
B. Slope formula
C. Two distinct lines are parallel if and only if they have equal slopes.
D. Midpoint formula
E. Given
F. Distance formula
G.Both sets of opposite sides of a trapezoid are parallel.
Answer:
1. Given
2. Slope Formula
3. Two distinct lines are parallel if and only if they have equal slopes.
4. Both sets of opposite sides of a trapezoid are parallel.
Step-by-step explanation:
Hope this helps.
Answer:
1. Given
2. Slope Formula
3. C
4. A. Exactly one pair of a trapezoid is parallel
What is the area of ABCDE?____sq cm
got very confused on this part
Answer:
A= 30 sq. cm
Step-by-step explanation:
We want to find the area of both triangles seprately than add them together. For the area of a traingle, we use the equation 1/2 base times height. For triangle ABE we do this:
[tex]A = \frac{1}{2} (12)(4)[/tex]
[tex]A = (6) (4)[/tex]
[tex]A = 24[/tex]
For triangle BDC, we do this:
[tex]A = \frac{1}{2} (6) (2)[/tex]
[tex]A = (3) (2)[/tex]
[tex]A=6[/tex]
Now we have to add both areas ot get A=30 sq cm
A sales man earns 6% commission on all the merchandise that he sells last month he sold $7000 worth of merchandise how much commission and daughters did he earn last month
Answer:
$420
Step-by-step explanation:
You just say commission = 6% of $7000
commission = (6/100) * 7000
commission = 0.06 * 7000 = $420
Answer:
$420
Step-by-step explanation:
6/100 x 7000 = 420
Al stop app weep woop so eery ya wet
What’s the correct answer for this?
Answer:
(x + 5)² + (y - 7)² = 13
Step-by-step explanation:
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k) are the coordinates of the centre and r is the radius
Here (h, k) = (- 5, 7) and r = [tex]\sqrt{13}[/tex] , thus
(x - (- 5))² + (y - 7)² = ([tex]\sqrt{13}[/tex] )² , that is
(x + 5)² + (y - 7)² = 13 ← equation of circle
In order to multiply fractions, the ______(s) are multiplied together, the_______(s) are multiplied together, and the fractions is simplified
Answer:
Numerators and denominators
Step-by-step explanation:
Upper part of fraction is referred to as numerator while lower part as denominator.
Answer:
In order to multiply fractions, the numerator(s) are multiplied together, the denominator(s) are multiplied together, and the fractions is simplified
Step-by-step explanation:
I remember it like this: numerator - up; denominator - down
Please give me brainliest
Of the 50 people who started a math class meeting at 10:00 each morning, only 37 finished the class. What fraction of people finished the class?
Answer:
37/50
Step-by-step explanation:
So 37 out of 50 who finished the class, so 37/50 .
And you can't simplify it.
Megan has practiced the piano for 7.5 hours over the course of this week. She practices on Tuesdays, Thursdays, and Saturdays. How many minutes is Megan's average practice.
Answer:
150
Step-by-step explanation:
you have three days and 7.5 so decide 7.5 by 3 it equals 2.5 which in minutes is 150
please help with this
Answer:
x^2 + 10x +21
Step-by-step explanation:
Your multiplying the Squares together and then adding them
Blue Square : x*x= x^2
Pink Square : x*7= 7x
Green Square: x*3= 3x
Orange Square: 3*7= 21
Now we add all the squares together to get the total area.
x^2+7x+3x+21
x^2+ 10x +21
Which is a correct expansion of (2x+3)(2x^{2} -5)?
Answer:
4x^{3} + 6x^{2} -10x -15
Step-by-step explanation:
(2x+3)(2x^{2} -5)
2x × 2x^{2} + 2x× (-5) + 3× 2x^{2} + 3 ×(-5)
=4x^{3} -10x + 6x^{2} -15
= 4x^{3} + 6x^{2} -10x -15
A 4 1/2 ounce hamburger patty has 25 1/2 grams of protein. Determine the grams of protein per ounce each type of food.
Select from the drop down menus to correctly complete each statement
Answer:
Option c. 5.7 grams
Option b. 5.3 grams
Step-by-step explanation:
(a) A [tex]4\frac{1}{2}[/tex] ounce hamburger patty has [tex]25\frac{1}{2}[/tex] grams of protein.
first we convert mixed fraction to improper fraction.
Amount of protein a [tex]\frac{9}{2}[/tex] ounce hamburger patty has = [tex]\frac{51}{2}[/tex] grams
∴ Amount of protein a 1 ounce hamburger patty has = [tex]\frac{\frac{51}{2} }{\frac{9}{2} }[/tex]
= [tex]\frac{51}{2} \times \frac{2}{9}[/tex]
= [tex]\frac{51}{9}[/tex]
= [tex]\frac{17}{3}[/tex] = [tex]5\frac{2}{3}[/tex] = 5.7 grams
(b) A 6 ounces of fish has 32 grams of protein.
∴ The amount of protein a 1 ounce of fish has = [tex]\frac{32}{6}[/tex]
= 5.3 grams
A hamburger patty has approximately 5.7 grams of protein per ounce.
A fish has approximately 5.3 grams of protein per ounce.
ASAP! GIVING BRAINLIEST! Please read the question THEN answer correctly! No guessing. Show your work or give an explaination.
Answer:
The Answer is B
Step-by-step explanation:
Why, Because it is saying graph the equation by a number of units so it will most likely be going down. Hope it helps.
A ladder, leaning against a wall, makes an angle of 20° with the ground. The foot of the ladder is 3 m from the wall. How long is the ladder?
Answer:
0.136m
Step-by-step explanation:
This is because if you draw a diagram, and label all the sides of the triangle (opp, hyp, adj), the adjacent angle is 3m. You can now use the sine rule to find the hypotenuse (length of ladder) by doing: cos 20= 3/h. You divide cos(20) by 3 and you get the answer of 0.13602m.
What is the first step to verify that the following identity is true?
Cot^2 x sec x = cos x/ sin^2 x
Step-by-step explanation:
this right ans according to your question
The solution to 2x2 – 11 = 87 is .
Step-by-step explanation:
Step 1: Subtract 87 from both sides
[tex]2x^2 - 11 - 87 = 87 - 87[/tex]
[tex]2x^2 - 11 - 87 = 0[/tex]
Step 2: Factor
[tex]2x^2 - 11 - 87 = 0[/tex]
[tex]2(x + 7)(x - 7) = 0[/tex]
[tex]x + 7 = 0[/tex] and [tex]x - 7 = 0[/tex]
[tex]x = -7[/tex] and [tex]x = 7[/tex]
Answer: [tex]x = -7, 7[/tex]
Answer:
x = 7, -7
Step-by-step explanation:
2x² - 11 = 87
2x² = 98
x² = 49
x = +/-7
x2 -20x + y^2 - 10y+25=0
identify center of the circle and radius
Answer:
Center of the circle = (10, 5)
Radius = 10
Step-by-step explanation:
Look at the picture
please helpppp i don’t know what do to :/ if you answer thank you so much
Answer:
(4,6)-(-2,-1)
Step-by-step explanation:
in a basketball game . Tina made 9 baskets . each dasket was worth either 2 or 3 points how many different numbers could represent the total points that Tina could have made?? answer me
Answer:
Tina could make are 10 Possible total points.
They number of possible total points are; 18, 19, 20, 21, 22, 23, 24, 25, 26 and 27.
Step-by-step explanation:
This is a zero-sum sort of deal. If tina makes 9 baskets, they can be all 2 points or all 3 points.
Let's make some number of 2 points "n". Then, the number of 3 points has to be 9 - n. The logic is exactly the same if we considered the number of 3 points made to be "n".
Thus, the maximum of this relationship is when n = 0.
Hence, 9 baskets gives the following possible permutations:
1) 0 number of 2 points and 9 number of 3 points = 27 points
2) 1 number of 2 points and 8 number of 3 points = 26 points
3) 2 number of 2 points and 7 number of 3 points = 25 points
4) 3 number of 2 points and 6 number of 3 points = 24 points
5) 4 number of 2 points and 5 number of 3 points = 23 points
6) 5 number of 2 points and 4 number of 3 points = 22 points
7) 6 number of 2 points and 3 number of 3 points = 21 points
8) 7 number of 2 points and 2 number of 3 points = 20 points
9) 8 number of 2 points and 1 number of 3 points = 19 points
10) 9 number of 2 points and 0 number of 3 points = 18 points
So the number of possible points Tina could make are; 18, 19, 20, 21, 22, 23, 24, 25, 26 and 27.
What’s the correct answer for this?
Answer:
B = 15 units ²
Step-by-step explanation:
In the attached file
Is the origin located at the intersection of the x - and y -axis
yes it is because thats exactly where its located
please answer my question
Answer:
0π
Step-by-step explanation:
After you add 5 and divide by 7, you find you're looking for solutions to ...
cos(θ) = 1
Your knowledge of the cosine function tells you the solution is ...
θ = 0 . . . . . matches the last choice (only)
___
Any multiple of 2π is a solution, but the only one in the allowed domain is 0π.
Find the mode of the data. please Helppppp!!!
Answer:
pizza
Step-by-step explanation:
Mode is the one that appears most often
Pizza appears 4 times
Cheeseburger, spaghetti appears only 3 times
apples, hot dogs 2 times
Answer: the mode is pizza
Step-by-step explanation:
Pizza: 4
Spaghetti: 3
Cheeseburger: 3
Apples: 2
Hotdog: 2
Pizza is the most so, it is the mode.
Solve the equation by completing the square. x2 + 20x + 82 = 7
Answer:
{-15, -5}
Step-by-step explanation:
The constant on the left needs to be the square of half the x-coefficient:
(20/2)^2 = 100
To get it to that value, we can add 18 to both sides of the equation:
x^2 +20x +100 = 25 . . . add 18 to both sides of the equation
(x +10)^2 = 25 . . . . . . . . write the left side as a square
x +10 = ±√25 = ±5 . . . . . take the square root
x = -10 ±5 = {-15, -5}
The solutions are x = -15 and x = -5.
_____
The attached graph shows the solutions to ...
x^2 +20x +82 -7 = 0 . . . . . the result of subtracting 7 from both sides
Answer:
sqdancefan
Genius
40.3K answers
503.3M people helped
Answer:
{-15, -5}
Step-by-step explanation:
The constant on the left needs to be the square of half the x-coefficient:
(20/2)^2 = 100
To get it to that value, we can add 18 to both sides of the equation:
x^2 +20x +100 = 25 . . . add 18 to both sides of the equation
Step-by-step explanation:
HELPPPPP What is the combine legth of all the buttons longer than 1 inch
Given the system y= 2x + 2 and y= 2*, which statement below is true?
There are no solutions
The system has exactly one solution.
(3, 8) is a solution of the system.
(8,3) is a solution of the system.
Answer:
(3, 8) is a solution of the system
Step-by-step explanation:
We assume your second equation is intended to be ...
y = 2^x
This system of equations can be solved graphically or by trial and error. There are no algebraic methods for solving it.
A graph shows that (3, 8) is one of the two solutions.
The multiplicative identity element for integers is _______________________.
Answer:
The multiplicative identity of the ring of integers and of its extension rings such as the ring of Gaussian integers , the field of rational numbers , the field of real numbers , and the field of complex numbers .
The answer is 1
Hope this helps
Answer: 1
Step-by-step explanation: Any no. multiplied by 1 is no. itself
i.e. x × 1= x
On the first day of spring, an entire field of flowering trees blossoms. The population of locusts consuming these
flowers rapidly increases as the trees blossom.
The relationship between the elapsed time, t, in days, since the beginning of spring, and the total number of
locusts, L(t), is modeled by the following function:
t
L(t) = 750 - (1.85)^t
Complete the following sentence about the daily rate of change of the locust population.
Every day, the locust population
grows/shrinks
by a factor of______?
Answer:5
Step-by-step explanation:
Answer:
if it is the percentage question, the answer is 65% and added
Step-by-step explanation:
khan
Aright triangle with an area of X2-4 square units has a leg that measures
2x + 4 units.
Determine the length of the other leg of the triangle.
Answer:
x - 2
Step-by-step explanation:
First, we know that the area of a triangle can be found using the formula: a = 1/2(bh).
We also know that the area of this triangle can be represented by (x^2-4).
Lastly, we know that one of the legs (let's call it the base) can be represented by (2x+4).
Let's plug in those values to the original formula: x^2 - 4 = 1/2(2x + 4)h
Now, let's solve for h!
We can multiply both sides by 2, then divide each side by (2x + 4) to isolate/solve for h.
If you need help on dividing polynomials, feel free to reach out!! I'd be happy to explain.
h = (x - 2)