Answer:
A
Step-by-step explanation:
12x² - 7y² - 10x² + y² = 12x² - 10x² - 7y² + y²
= (12 - 10)x² + (-7 + 1)y²
= 2x² + (-6y²)
= 2x² - 6y²
plz help me plz help me
Answer:
In one hour Stephanie earns $1.50 more than Marco
Step-by-step explanation:
w=9h
H is a variable
9×hour= wage
9×15= $135
9×18= $162
157.50-135=$22.50
189-162=$27
27-22.50=4.50
Now cause its per hour we know she earns $4.50 more in 3 hours.
4.50÷3=$1.50
PLS HELP! WILL GIVE BRAINLIEST
Answer:
7917.5 miles
Step-by-step explanation:
it's in the equation
please help!!!!!!!!!!
Answer:
15/4r+1/4x
Step-by-step explanation:
Rodger has 22 coins, all quarters and nickels. The total value of the coins is $2.70. How many of each type of coin does he have?
Answer:
3 quarters and 19 nickles
Step-by-step explanation:
.
PLEASE HELP I WILL BRAINLIST
Answer:
Well we know that it's a linear because it has a exponent so what we do to answer this question
Step-by-step explanation:
------
- b+ v. b2 -4ac
x= ____________
2a
x2+ 12x +20 =0
a=1
b=12
c=20
_______
X= -12+v 12 2 -4 • 1 • 20
___________________
2•1
Answer:
2; 10
Step-by-step explanation:
12/2 = 6
[tex](x+6)^{2}[/tex] = [tex]x^{2}[/tex] +12x + 36
[tex]x^{2}[/tex] +12x + 20
- [tex]x^{2}[/tex] +12x + 36
0 + 0 - 16
[tex](x+6)^{2}[/tex] - 16 = 0
[tex](x+6)^{2}[/tex] = 16
x + 6 = [tex]\sqrt{16}[/tex]
x = -4 + 6 = 2
x = 4 + 6 = 10
Tell whether the angles are complementary or supplementary. Then find the value of x.
Use Pythagorean theorem to find the missing length. (round to tenth if necessary) IS
11.7
8
7
64
11.7
Formula: a^2 + b^2 = c^2
so substitute the numbers like this:
10^2 + 6^2 = c^2
both 10^2 and 6^2 are perfect squares:
10 × 10= 100 and 6 × 6= 36
100 + 36= c^2
add:
100 + 36 =
136 = c^2
now in order to get rid of the squared, you put it into a radical:
√136 = √c^2
note: whatever you do on one side, you do to the other
it's easier to use the calculator for this so put √136 and you're gonna get 11.66
since it's asking you to round it to the nearest tenth:
11.66 = 11.7
sorry if the explanation is kinda long ✋ i tried explaining it better in the end but i failed
WIll MARK BRAINLIST IF YALL DO FAKE ANSWER YALL WILL BE REPORTED!!!!!!!!!!!!!!!!!
Answer:
f(7)=-196
Step-by-step explanation:
f(7)=-3(7)^2-7(7)
f(7)=-3(49) -49
f(7)= -147 -49
f(7)=-196: ANSWER
Hope this helps! This is also written in the comment too!
What is the midsegment (7-13)
Answer
Step-by-step explanation:
(
7
,
13
)
,
(
−
14
,
19
)
Use the midpoint formula to find the midpoint of the line segment.
(
x
1
+
x
2
2
,
y
1
+
y
2
2
)
Substitute in the values for
(
x
1
,
y
1
)
and
(
x
2
,
y
2
)
.
(
7
−
14
2
,
13
+
19
2
)
Subtract
14
from
7
.
(
−
7
2
,
13
+
19
2
)
Move the negative in front of the fraction.
(
−
7
2
,
13
+
19
2
)
Add
13
and
19
.
(
−
7
2
,
32
2
)
Divide
32
by
2
.
(
−
7
2
,
16
)
How do you graph an equation if you had m= -1/3 and b = 2.
Answer:
You first plot the point (0,2), then when the x-value of the graph increases by 3, decrease the y-value of the graph by 1, and when the x-value o the graph decreases by 3, increase the y-value of the graph by 1.
Step-by-step explanation:
The equation would be [tex]y = -\frac{1}{3}x+2[/tex]. To graph it, you first need to find the y-intercept, which is the coordinate on the line when the x-value equals 0. If x = 0, [tex]y = -\frac{1}{3}x+2[/tex] would become [tex]y = 2[/tex] since anything multiplied by 0 would become 0. Now you've located the y-intercept, which is (0, 2). The slope of a line is the coefficient of the variable x. Since the slope is a negative number, the line will go downwards as it increases its x-value and goes upward as it decreases its x-value. A slope of [tex]-\frac{1}{3}[/tex] would mean that when the x-value increases by 3, the line's y-value will decrease by 1. And when the x-value decreases by 3, the line's y-value will increase by 1. An x-value increase of 6 would be a decrease of 2, and so on. Two other obvious points on the line would be (6,0) and (3, 1).
A shirt is on sale for 60% of the original price. The original price is $28 more than the sale price. What was the original price?
Answer:
I believe the answer is $70
Step-by-step explanation:
I used the formula
x= 0.6x + $28
x= the original price
Which statements (more than one) describe the equation 3 x 9 = 27?
3 is 27 times as many as 9.
27 is 9 times as many as 3.
9 times as many as 3 is 27.
9 times as many as 27 is 3.
3 is 9 times as many as 27
Answer:
9 times as many as 3 is 27.
Step-by-step explanation:
hi I need answer please. I will mark brainliest who can answer thankyou...
Answer:
a) (0,0), (-4, 1), (-1,2)b) NoneStep-by-step explanation:
There are two ways of solving similar problems. One- substitute x and y with respective coordinates and verify if the inequalities are correct. Two- graph the lines and see if the points are in the intersection zones.We'll go with the first method. Remember both inequalities should be correct for the same point to accept it as a solution.Given points
(0,0), (-4,1), (-1,2)a) The system of inequalitiesy > x - 1y < -1/2x + 2Point (0,0)
0 > 0 - 1 = -1 correct0 < -1/2(0) + 2 = 2 - correctYesPoint (-4,1)
1 > -4 - 1 = -5 - correct1 < -1/2(-4) + 2 = 4 - correctYesPoint (-1,2)
2 > -1 - 1= -2 - correct2 < -1/2(-1) + 2 = 2.5 - correctYesb) The system of inequalitiesx - 2y ≥ 42x - y ≥ -1Point (0, 0)
0 - 2(0) = 0 ≥ 4 - incorrect2(0) - 0 = 0 ≥ -1 - correctNoPoint (-4, 1)
-4 - 2(1) = - 6 ≥ 4 - incorrect2(-4) - 1 = - 9 ≥ -1 - correctNoPoint (-1,2)
-1 - 2(2) = -5 ≥ 4 - incorrect2(-1) - 2 = - 4 ≥ -1 - correctNo9514 1404 393
Answer:
a. all points are part of the solution set
b. no points are in the solution set
Step-by-step explanation:
Graphs of the two systems of inequalities are attached.
a) The red area on the graph is the solution. The two inequalities can be combined to one compound inequality:
x -1 < y < -1/2x +2
The two boundary lines intersect at x-1 = -1/2x +2 ⇒ x = 2, so there are no points in the solution set with x-values of 2 or greater.
All of the given points are in the solution set.
__
b) The green area of the graph is the solution. Solving each inequality for y gives ...
x -2y ≥ 4 ⇒ 1/2x -2 ≥ y
2x -y ≥ -1 ⇒ 2x +1 ≥ y
The allowed values of y must be less than or equal to the minimum of these limits. The limits have the same value at 1/2x -2 = 2x +1 ⇒ x = -2, so the solution set is the area below and right of that intersection point of the two boundary lines.
None of the given points are in the solution set.
What is the difference between an independent variable and a dependent variable in statistics?
Answer:
The cause is the independent variable. In your study, its value is independent of other variables. The affect is the dependent variable. Its value depends on the independent variable being changed.
Step-by-step explanation:
Louise completed the work shown below.
(5x3 + 3)2 = (5x3)2 + (3)2 = 25x6 + 9
Determine if Louise’s answer is correct. Explain.
Answer:
SAMPLE RESPONSE
Step-by-step explanation:
Louise’s answer is not correct. She is missing the term 30x3. When squaring a binomial, it is best to write the product of the binomial times itself. Then you can use the distributive property to multiply each term in the first binomial by each term in the second binomial. Louise also could have used the formula for a perfect square trinomial, which is found by squaring a binomial.
Ryan has a semicircular garden as shown.
What is the distance around his garden in feet? Use 3.14 for 7.
Enter the correct answer in the box.
ft
894
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Answer:
i think it would be around 34 feet
Step-by-step explanation:
the bottom is cut in half and each half is 8 and 1/2 feet so if you add 8 and 1/2 + 8 and 1/2 you would get 17 and then the top is rounded so you would just add 17 and 27 together to get the distance around.
PLEASE HELP!!
If you answer pls explain I need to know if I ever have a problem like dis in the future
What is the volume of a cylinder with a height of 3 feet and a radius of 4 feet?
Use 3.14 for pi.
Enter your answer in the box.
{ } ft ^3
Answer:
The answer is 150.72
Step-by-step explanation:
[tex]v = \pi {r}^{2} \times h \\ = 3.14 \times 4 \times 4 \times 3 \\ = 150.72 {ft}^{3} [/tex]
Answer:
IS NOT 150.72 SOMETHING DONT LISTEN JUST PUT 113.04 THATS THE ANSWER
Step-by-step explanation:
Find the area for 5 and 7
Answer and Step-by-step explanation:
The area of a circle:
[tex]A = \pi r^{2}[/tex]
d = 2r
Plug in the values.
5.
A = [tex]\pi 7^{2}[/tex]
A = 49[tex]\pi[/tex]
7.
58 = 2r
r = 29
[tex]A = \pi 29^{2}[/tex]
A = [tex]841\pi[/tex]
#teamtrees #PAW (Plant And Water)
hey! can u number it 1. 2. 3. ect :) ty :)
Answer:
1. Supplementary
2. Complimentary
3. Supplementary
4. Complementary
5. Supplementary
6. Complimentary
7. Supplementary
8. Neither
9. Complimentary
Step-by-step explanation:
Remember that Supplementary angles result in two angles that sum up to 180 degrees, while Complimentary angles sum up to 90 degrees. The angles that did not sum up to 90 or 180 were neither Supplementary nor complimentary.
I hope I helped :)
Would appreciate Brainliest ;)
Exercise 12.1
r. (1) 5x – 3 = 3x - 5
.
(1) 5y - 2[y - 3(y – 5)] = 6
Answer:
(1) x = -1 (1) y = 4
Step-by-step explanation:
r. (1) 5x - 3x = -5 + 3
2x = -2; x = -1
(1) 5y - 2[y - 3y +15] = 6
5y - 2y+6y - 30 = 6
9y = 36; y = 4
Have a good day!
Pls help Ill give brainiest or whatever
Answer:
2.5 hours
Step-by-step explanation:
it takes him 2.5 hours
Answer:
The time is 2.5 hours.
Step-by-step explanation:
7.5/3=2.5
hope this helps!
Please help me with #4
Answer:
Area: 2π square units
Perimeter: 3π units
Step-by-step explanation:
Please let me know if you want me to add an explanation.
I WILL GIVE BRAINLIEST IF CORRECT
Answer:
Vertical compression
Step-by-step explanation:
g(x)=0.25f(x), if you substitute for f(x) you get B
A salesclerk gets a 4% commission on the sale of each computer. What is her commission on the sale of a computer that sells for $426.00?
Group of answer choices.
$40.00
$17.04
$170.40
$408.96
find the lenghts of the following segement
Factor 10w10 – 19w9 +6w8 completely.
10w10 – 19w9 +6w8 =
Step-by-step explanation:
10w¹⁰ - 19w⁹ + 6w⁸
= w⁸(10w² - 19w + 6)
= w⁸(2w-3)(5w-2)
The value of the equation after factorization is A = w⁸ ( ( 5w - 2 ) ( 2w - 3 ) )
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
A = 10w¹⁰ - 19w⁹ + 6w⁸ be equation (1)
Now , on factorizing the equation , we get
Taking the common factor as w⁸ , we get
A = w⁸ ( 10w² - 19w + 6 )
On further simplification , we get
A = w⁸ ( 10w² - 15w - 4w + 6 )
Now , on factorizing the equation , we get
A = w⁸ ( 5w ( 2w - 3 ) - 2 ( 2w - 3 ) )
And , the equation will be
A = w⁸ ( ( 5w - 2 ) ( 2w - 3 ) )
Therefore , the value of A is w⁸ ( ( 5w - 2 ) ( 2w - 3 ) )
Hence , the equation is A = w⁸ ( ( 5w - 2 ) ( 2w - 3 ) )
To learn more about equations click :
https://brainly.com/question/19297665
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6y(-5-y+4y^2)
Simplify the expression^^
Answer:
24y^3-6y^2-30
Step-by-step explanation:
6y(-5-y+4y^2)
-30y-6y^2+24y^3
Put in the correct order
24y^3-6y^2-30
Peter has 22 coins, all dimes and quarters whose total value is $4.30 how many of each coin does he have PLEASE HELP!!!!!
Answer:
8 dimes and 14 quarters.
Step-by-step explanation:
d and q are the number of dimes and quarters, respectively.
"22 coins, all dimes and quarters"
d+q = 22
d = 22-q
"total value is $4.30"
0.10d + 0.25q = 4.30
substitution
0.10(22-q) + 0.25q = 4.30
2.2 + 0.15q = 4.30
q = 14
d = 22-q = 8
8 dimes and 14 quarters.
4 movies tickets cost. at this ratio what cost of 11 movies tickets
Answer:
44
Step-by-step explanation:
Recognize 4 tickets cost 4$
11 movie tickets
We multiply 11x4
11x4=44
Question: 4 movies tickets cost. at this ratio what cost of 11 movies tickets.
Answer: 44
Basacly what you have to do is multiply them.
4 movies tickets x 11 movies tickets so we do the math and we get
44^^^^^^^^^^^^^^Select the equation of the line parallel to the equation 2x+4t=-5 that passes through the point (-4,-8)
