Hey there!
-3(c+2)+d(c+5)
All you have to do is DISTRIBUTE
-3(c) + (-3)(2) + d(c) + d(5)
-3c - 6 + cd + 5d
SOLVE ABOVE and you have your ANSWER
Answer: cd - 3c + 5d - 6
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
Consider the quadratic equation 3x^2-6=2x. (a) What is the value of the discriminant? (b) What does the discriminant of the quadractic equation tell about the solutions to 3x^2-6=2x?
Answer:
(a) discriminant is positive, 76
(b) the above tells you there are two real roots
Step-by-step explanation:
the discriminant is 'b² - 4ac'
3x² - 2x - 6 = 0 ∴ a = 3, b = -2, c = -6
(-2)² - 4(3)(-6) = 4 + 72
(a) The discriminant of the quadratic equation is positive, 76.
(b) The quadratic equation tells you there are two real roots.
What is a quadratic equation?A quadratic equation is a polynomial with a degree of 2 or the maximum power of the variable is 2 in quadratic equations. It has two solutions as its maximum power is 2.
The discriminant of a polynomial in mathematics is a quantity that depends on the coefficients and enables inference of some root features without computing them.
Given that the quadratic equation 3x²-6=2x.
The discriminant Of the quadratic equation is calculated by the formula below:-
D = b² - 4ac
3x² - 2x - 6 = 0 ∴
a = 3, b = -2, c = -6
Put the value of the coefficient to get the value of the discriminant.
D = (-2)² - 4(3)(-6) = 4 + 72 = 76
Therefore, the discriminant of the quadratic equation is positive, 76, and the quadratic equation tells you there are two real roots
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Do this and I’ll pay u I need help
Answer:
69
"bring me my money"
Step-by-step explanation:
Please answer correctly !!!! Will mark Brianliest !!!!!!!!!!!!!!
Answer:
For every 7 books Ethan read, Sadie read 3 books.
Step-by-step explanation:
For every 21 books Ethan read, Sadie read 9 books.
Unsimplified Ratio = 21:9
21 and 9 have a common factor of 3.
Because 21 and 9 share a common factor we can simplify the ratio
21 / 3 = 7
9 / 3 = 3
The new ratio is 7 to 3
So for every 7 books Ethan read, Sadie read 3 books.
The floor tiles In the Jackson family kitchen are squares that measure 8 and 3/4 to a side. Each grid Square in the drawing measures 1/4 in to a side which is the scale of the drawing.
Answer:
Step-by-step explanation:
The aware iz 1 in 35 in
The scale of drawing is 1 inch : 27 inch
What is scale factor?The scale factor is a measure for similar figures, who look the same but have different scales or measures. The scale factor states the scale by which a figure is bigger or smaller than the original figure.
Given that, the measurement of the tile = 27/4 inches
Side of the drawing = 1/4 inches
The scale of the drawing =
1/4 inch of drawing = 27/4 inch of tile
That means, 1 inch of the drawing = 27 inch of the tile
Therefore,
The scale of the drawing is 1 inch : 27 inch
Hence, option D is correct
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The complete question is ;
The floor tiles in the Jackson family’s kitchen are squares that measure 6
3 /4 inches to a side. Each grid square in the drawing measures 1 /4 inch to a side. Which is the scale of the drawing?
A. 1 : 8 3 /4
B. 1 : 10
C. 1 /4 : 27
D. 1 : 27 n
A store owner wants to know how many of her 600 regular customers prefer canned vegetables. Each of her three cashiers randomly surveys 20 regular customers. The table shows the results.
Answer:
Sample A Estimate: 330
Sample B Estimate: 420
Sample C Estimate: 360
Median: 360
Range: 90
Step-by-step explanation:
For the sample estimate, multiply 600 by 11/20, 7/10, and 3/5 in order.
600 * 11/20
6600/20
330 people for Estimate A.
600 * 7/10
420/10
420 people for Estimate B.
600 * 3/5
1800/5
360 people for Estimate C.
330, 360, 420
360 is the median of these estimates.
420 - 330 = 90
90 is the range of these estimates.
can someone do this and explain how you did it with the formula and stuff.
Step-by-step explanation:
Chop it into shapes you know how to solve with:
Rectangle with dementions 6m x 3m A=18m^2
Rectangle with dementions 12m x (8-3)m A=60m^2
Rectangle with dementions 2m x 3m A=6m^2
total area= 18+60+6=84m^2
Peremeter:
12+6+2+(12-6-2)+3+3+8+8
=12+12+3+3+8+8
=24+6+16
=30+16
=46m
15 POINTs_ NEED ASAP!
Tell whether the following statements are true or false, explain the reasoning.
Answer:
Step-by-step explanation:
1 TRUE
A number is always 100% Anyting bigger than 100% is going to be a bigger number
Anything smaller than 100% is a smaller number
2FALSE 5/100 = 0.05 and NOT 0.5
0.5% is the same as thalf of 100% = 50%
50/100 = 5/10 = 0.5
Richard prepares 7 kilograms of dough every hour he work sat the bakery. How much dough did Richard prepare if he worked for 5 hours?
Is 2.36 a rational number?
Answer:
Yes
Step-by-step explanation:
Since it is a terminating (it ends) decimal and could be written as a fraction
what sum of money will amount to Rs.9261 in 3yrs at 5% per annum compound interest?
What sum of money will amount to Rs.9261 in 3yrs at 5% per annum compound interest?
Answer:-Given:-[tex] \bullet [/tex] Amount (A) = Rs.9261
[tex] \bullet [/tex] Time (n) = 3 yrs
[tex] \bullet [/tex] Rate of interest (r) = 5%
To Find:-Required Sum
Solution:-We know the formula,
[tex] { \boxed{\rm \red {A \; = \: P(1 \: + \frac{r}{100})^n}}} [/tex]
[tex] \therefore [/tex] Putting the values we get,
[tex] \bf 9261 \: = \: P(1 \: + \frac{5}{100})³ [/tex]
[tex] \bf P \: = \: 9261 \: × (\frac{20}{21})³ [/tex]
[tex] \bf P \: = \:9261 \: × \frac{20}{21} × \frac{20}{21} × \frac{20}{21} [/tex]
[tex] \bf P \: = \: Rs.8000 [/tex]
[tex] \therefore [/tex] Required Sum is Rs.8000. [Answer]Barnie hopped onto his bicycle and pedaled to the park at 15 miles per hour then he wizzed back at 20 miles per hour if the total trip took 7 hours how far was it to the park
Polly has 2 1/2 cups of cereal. How many 3/4 cup full servings can she make? Will she have any cereal left?
Answer:
She can make 3 cups of it with 1/3 of a cup leftover.
Step-by-step explanation:
2 1/2 = 5/2
5/2 ÷ 3/4
5/2 · 4/3
10/3
3.33
is 8x+2x equivalent to 8+2x?
Answer:
As long as I know if it's not the same then its not equal, because if you solve it they will give you different answers.
A store that sells skis buys them from a manufacturer ata a whole price of $57 the store make up rate it 50% what percent of the original price is the final price
Answer: 27
Step-by-step explanation:
Nicole runs 6 miles in 45 minutes. At the same rate, how many minutes would she take to run 4 miles?
Answer:
30 minutes
Step-by-step explanation:
6=45
4=x
6x2/3=4
45x2/3=30
x=30
Answer:
66 minutes
Step-by-step explanation:
USE Six digits are given. 7 2 0 6 8 4 Answer the questions about these digits. Be sure to use commas when writing your numbers. a. What is the greatest 6-digit number that can be written with the given digits? b. What is the least 6-digit number that can be written with the given digits? c. What is the difference between these two numbers?
Answer:
a) 888,888
b) 200,00
c) 888,888-200,000=688,888
step-by-step explanation:
the biggest number possible is 888,888 because 8 is the largest number and the question doesn't say that you have to use each number
200,000 is the smallest number because outside 0, 2 is the second-smallest number, and since 000,000 isn't a number 200,000 is the next best thing
good luck :)
i hope this helps
brainliest would be highly appreciated
have a nice day!
Without calculating, will the product below be greater than, less than, or equal to 5/12
Answer:
i think it would be less than
Step-by-step explanation:
PLEASE HELP I CANT MISS ANY MORE QUESTIONS
Andrea has a bag of marbles. Without looking in the bag,
she selects a marble, records its color, and puts it back in
the bag. All marbles are equally likely to be chosen. She
performs the process 50 times. In the 50 trials, she records
the following colors of marbles from the bag.
Number of times a purple marble was chosen 24
Number of times a pink marble was chosen 11
Number of times a yellow marble was chosen 15
Based on the data Andrea collected, what is the estimated probability, in
simplest form, of choosing a purple marble from the bag?
A. 50/24
B. 48/50
C. 12/100
D. 12/25
Answer:12/100
Step-by-step explanat
Answer:
D. 12/25
Step-by-step explanation:
hiii please help i’ll give brainliest:)
Answer:
weaving
Step-by-step explanation:
please mark this answer as brainliest
the solution set for an inequality refers to
Answer:
Step-by-step explanation:
A solution set is the set of values which satisfy a given inequality. It means, each and every value in the solution set will satisfy the inequality and no other value will satisfy the inequality. Example: Solve 2x + 3 ≤ 7, where x is a natural number.
plz helppppppppoppppppp
Answer:
D
Step-by-step explanation:
Option A:
(3)¹ × (3)⁻¹⁰ = (3)⁽¹⁻¹⁰⁾ = 3⁹
=
=
Option B :
(3)⁻¹ × (3) ¹⁰ = 3⁽¹⁰⁻¹⁾
= 3⁹
= 19683
Option C :
(3⁻⁴) × (3)⁷ = 3⁽⁷⁻⁴⁾
= 3³
Option D :
3⁴ × 3⁻⁷ = 3⁴⁻⁷
= 3⁻³
=
=
Therefore, option D is the answer.
(4) if you can figure this out thank you so much if not still think you try later
Answer:
165m²
Step-by-step explanation:
The figure shown is a parallelogram
The area of a parallelogram can simply be found by multiplying the base length and the height
We are given that the parallelogram has a height of 15 m and a base length of 11m
That being said the area is equal to 15 * 11
15 * 11 = 165
So the area of the parallelogram is 165 m²
help me out thank you so much whoever does !! :):))
Answer:
72
Step-by-step explanation:
A triangle has side lengths of
(x-8) (4x2 – 3) and (4x2 + 4).
If the perimeter is 650 units, what is the value of x?
Given:
The three sides of a triangle are:
[tex](x-8),(4x^2-3),(4x^2+4)[/tex]
The perimeter of the triangle 650 units.
To find:
The value of x.
Solution:
Perimeter of a triangle is the sum of all three sides of the triangle. So,
[tex]Perimeter=(x-8)+(4x^2-3)+(4x^2+4)[/tex]
[tex]Perimeter=8x^2+x-7[/tex]
The perimeter of the triangle 650 units.
[tex]8x^2+x-7=650[/tex]
[tex]8x^2+x-7-650=0[/tex]
[tex]8x^2+x-657=0[/tex]
Splitting the middle term, we get
[tex]8x^2+73x-72x-657=0[/tex]
[tex]x(8x+73)-9(8x+73)=0[/tex]
[tex](x-9)(8x+73)=0[/tex]
Using zero product property, we get
[tex](x-9)=0\text{ and }(8x+73)=0[/tex]
[tex]x=9\text{ and }x=-\dfrac{73}{8}[/tex]
For negative value of x, the side [tex](x-8)[/tex] will be negative, which is not possible because the side of a triangle cannot be negative.
Therefore, the only value of x is 9.
help plz!
lines a and b are parallel m∠4=
The angle 4 and 120 degrees angles are alternate angles. Therefore, ∠4 = 120 degrees.
What is an alternate angle?Alternate interior angles are the angles formed when a transversal intersects two parallel lines.
Alternate interior angles are the angles formed on the opposite sides of the transversal.
Alternate interior angles are congruent.
Therefore,
∠4 is an alternate interior angle to angle 120 degrees.
Therefore,
∠4 = 120 degrees.
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sub (−7x+5)−(2x2−8x+6).
10
sub (−7x+5)−(2x2−8x+6).
What is the median of the data set?
17, 18, 20, 22, 24, 25, 30
A. 17
B. 30
C. 7
D. 22
Please help I will give brainiest!!!
Answer:
D. 22
22 is in the middle
There are three numbers on both sides of 22 so it makes it even and 22 ends up being in the middle.
Hope this helps
Convert the following units. 3 feet =______ inches
Answer:
36 inches
Step-by-step explanation:
Search up 3 feet in inches on and you'll see a converter
What is the value of the fraction below?
0/25
In which of the expressions below will x = 25? Select all that apply.
Answer:
Option C
Option D
Step-by-step explanation:
We have to calculate each expression to find for which one is the solution is x=25.
A)
[tex] \frac{x + 6}{3} = 10 \\ x + 6 = 10 \: . \: 3 \\ x + 6 = 30 \\ x = 30 - 6 \\ x = 24[/tex]
B)
[tex]x - 8 = 32 \\ x = 32 + 8 \\ x= 40[/tex]
C)
[tex]6x - (15 + 4x) = 35 \\ 6x - 15 - 4x = 35 \\ 2x = 35 + 15 \\ 2x = 50 \\ x = \frac{50}{2} \\ x = 25[/tex]
D)
[tex] \frac{3x}{5} = 15 \\ 3x = 15 \: . \: 5 \\ 3x = 75 \\ x = \frac{75}{3} \\ x = 25[/tex]
E)
[tex]4(x - 18) = 12 \\ x - 18 = \frac{12}{4} \\ x - 18 = 3 \\ x = 3 + 18 \\ x = 21[/tex]
