Answer:
12.635
Step-by-step explanation:
When you multiply 2 negatives, it turns into a positive.
Answer:
-3.61 x -3.5 = -7.11
Solving equations with fractions
1/2x-1/2-x=-3/2
Answer:
This is The Answer! Solutions: x=2.
21. Which equation matches the table?
Answer:
D. is the match of the equation
8x – 2 > -18
solve the inequality and graph the solution on the line provided.
Answer:
When solving inequalities you want to first group all like terms, so you'd first add 8 to both sides, and get rid of the extra number on the left side.
7x ≤ -7
Then you'd isolate the variable, so you should divide both sides by 7.
x ≤ -1
When graphing the equation the solution set includes -1 so you would put a closed circle (filled in). The variable "x" is less than and equal to -1 so you would put the arrow facing left <----.
Step-by-step explanation:
Two triangles are congruent if any three parts of one triangle are equal to the corresponding parts of the other.
Answer:
what is the question asking?
Step-by-step explanation:
Trash management charges its customers a fee of $25 plus $8 for each trash can they need emptied. If a customer received a bill for $65, how many trash cans did they need emptied? **When writing the equation, be sure to use correct form, NO capital letters (x only), and NO spaces
Answer:
28+8x
12x
Step-by-step explanation:
you would plug in numbers for x until one of them is cheaper in this case waste away is cheaper by $8 after 5 trash cans
what is 3 plus three
Answer:
6
Step-by-step explanation:
| | | + | | | = 6
What is 8+2 I need to know fast!!!!!!
Answer:
10
Step-by-step explanation:
If you add 8 + 1 according to the numbers, it will give you 9. Add another 1, which is the +2. gives 10. 8+2 is 10, seems ez i know ur trolling Imao
Answer
8+2=10
Example:
If you have 8 apples and your friend Joe gives you 2 more, you then have 10 apples.
what is the slope of the line perpendicular to the lone whose equation is 2x+2y=28
Answer:
The slope of the line perpendicular to the line whose equation is 2x + 2y = 28 is -x.
Step-by-step explanation:
You first isolate y, then divide 2 on both sides. This gives you the equation y = x + 14. To find a slope perpendicular to the line, simply use the negative integer of x, which is -x. The slope of the line perpendicular to the line given is -x.
The system of equations graphed below has how many solutions?
A. 0
B. 1
C. Infinitely many
D.2
Answer:
A
Step-by-step explanation:
use the distributive property to solve the equation 4x/5-x=X/10-9/2
Answer:
[tex]x = 15.[/tex]
Step-by-step explanation:
[tex]4x/5-x=X/10-9/2 = > \\ \frac{4x}{5 - x} = \frac{x}{10} - \frac{9}{2} \\ (20)4x = 2x(5x - x) - 10(5x - x) \\ 80x = 10 {x}^{2} - {2x}^{2} - 50x + 10x \\ 8 {x}^{2} - 120x = 0 \\ {x}^{2} = 15x \\ x = 15.[/tex]
√6 + √ 54
A. 4√6 or
B. 5√6
Which one?
Answer:
B is 5 the answer your welcome
Simplify
3x + 2(x - 5) +7
Answer:
5x - 3
Step-by-step explanation:
3x + 2(x - 5) +7
3x + 2x - 10 + 7
5x - 3
ASAP ASAP ASAP
please help me with this problem
Answer:
its c
Step-by-step explanation:
Chris mixes 4 cups of cereal 3 cups of pecans and 2 cups of raisins. What are three ways to write the ratio of cups of cereal to cups of pecans?
1. 4 : 3 = 2 : 1.5
2. 2 : 4 = 3 : 6
3. 3 : 2 = 4 : 2.6
the quantity of x plus 16 all over 3 = 3x
Answer:x= 2
Step-by-step explanation:
X+16/3= 3x
3(x+16/3)=3(3x) [in order to cancel out the divided by 3]
X+16=9x
16=8x
2=x
Gabriel took a math test and scored an 80. He got 4 questions wrong and lost 20 points. How many points were each item?
Answer:
Each question was worth 5 points.
Step-by-step explanation:
If every question had the same worth, then that would be easier to calculate.
First divide the points he lost by how many questions.
20 ÷ 4 = 5
Now we have it! Each question is worth 5 points!
But if you want to find how many questions in total the test had, we can do that too!
100 ÷ 5 = 24
The test had 24 questions!
If you find my answer helpful
Pls consider marking my answer as Brainliest! It would mean a lot!
please help me with this question
Answer:
Alternate corresponding anglesI think every line here is a transversal tbhLine C and DFind the slope between the two points (1, -1) and (3, 7).
Answer:
the slope is 4
Step-by-step explanation:
You can solve this by using [tex]\frac{y2-y1}{x2-x1}[/tex] So in this case it's
[tex]\frac{7+1}{3-1}[/tex] due to the negative, you add instead of subtract. that becomes
[tex]\frac{8}{2}[/tex] Which is 4
PLEASE HELP ME!!
For the circle centered at the origin with radius 4 and equation x^2+y^2=16, find dx/dt at the first quadrant point where x=2 if dy/dt=-3 at that instant.
Answer:
dx/dt = 12
Step-by-step explanation:
Given the equation of a circle expressed as:
x²+y² = 16
Differentiate the expression with respect to x
2x dx/dt + 2y dy/dt = 0
Given
x = 2
dy/dt = 3
Required
dx/dt
Substitute the given parameters into the resulting differential equation
2x dx/dt + 2y dy/dt = 0
2 dx/dt + 2(4) (-3) = 0
y = 4 since the radius is 3,
2 dx/dt - 24 = 0
2 dx/dt = 24
dx/dt = 24/2
dx/dt = 12
Using implicit differentiation, it is found that:
[tex]\frac{dx}{dt} = 4 + 3\sqrt{3}[/tex]
The equation of the circle is:
[tex]x^2 + y^2 = 16[/tex]
We are given x = 2, then:
[tex]2^2 + y^2 = 16[/tex]
[tex]y^2 = 12[/tex]
[tex]y = \pm \sqrt{12}[/tex]
First quadrant, thus, positive:
[tex]y = \sqrt{12}[/tex]
[tex]y = 2\sqrt{3}[/tex]
Applying implicit differentiation, we have that:
[tex]2x\frac{dx}{dt} + 2y\frac{dy}{dt} = 16[/tex]
We are given that [tex]frac{dy}{dt} = -3[/tex], then:
[tex]2(2)\frac{dx}{dt} - 12\sqrt{3} = 16[/tex]
[tex]4\frac{dx}{dt} = 16 + 12\sqrt{3}[/tex]
[tex]\frac{dx}{dt} = \frac{16 + 12\sqrt{3}}{4}[/tex]
[tex]\frac{dx}{dt} = 4 + 3\sqrt{3}[/tex]
A similar problem is given at https://brainly.com/question/9543179
Light travels at around 186,000mph. The rule d=186,000t describes the relationship between the distance d in miles and t seconds. How far does light travel in 20 seconds? how far does light travel in 1 minute? How long does it take light to travel 20,000,000 miles?
Answer:
Step-by-step explanation:
Why is the speed of light travels 300,000 km per second in a vacuum, ... the same thing, but nobody is tackling the question of why light can't move faster. ... What happens if you travel faster than the speed of light? ... The theory of relativity has a lot to say about the relationship between space and time.
∠A and ∠ B ∠B are supplementary angles. If m ∠ A = ( 7 x + 15 ) ∘ ∠A=(7x+15) ∘ and m ∠ B = ( x + 13 ) ∘ ∠B=(x+13) ∘ , then find the measure of ∠ A ∠A.
Answer:
∠A = 148°
∠B = 32°
Step-by-step explanation:
We know that ∠A and ∠B are supplementary angles, this means that:
∠A + ∠B = 180°
And we also know that:
∠A = (7x + 15)°
∠B = (x + 13)°
Then we have a system of 3 equations.
To solve it, we can replace the second and third equations into the first one, and get:
(7x + 15)° + (x + 13)° = 180°
Now we can solve this for x, but first, let's remove the degree sign so it is easier to work:
7x + 15 + x + 13 = 180
(7 + 1)*x + 28 = 180
8*x = 180 - 28 = 152
x = 152/8 = 19
Now that we know x, we can find the values of ∠A and ∠B
∠A = (7x + 15)° = (7*19 + 15)° = 148°
∠B = (x + 13)° = (19 + 13)° = 32°
What is the slope-intercept form of the equation 3x + 4y = 15?
Answer:
y = 3/4x - 15/4
Step-by-step explanation:
Chang is putting money into a savings account. He starts with $450 in the savings account, and each week he adds $60.
Let S represent the total amount of money in the savings account (in dollars), and let W represent the number of weeks Chang has been adding money. Write an equation relating S to W. Then use this equation to find the total amount of money in the savings account after 13 weeks.
Answer: S: $450
W: $780
so $450+$780 =$1230
the answer is $1230
Step-by-step explanation:
describe the graph below
linear or nonlinear
Answer:
linear. no repeating X values
Step-by-step explanation:
If X = 5 and y = 6, what is 2x12/y? A) 12 B) 9.5 C) 8 D) -1/3 PLEASE HURRY AND ANSWER THIS QUESTION ITS DUE TODAY!!!!
Answer:
C)8
Step-by-step explanation:
x=5 ,y=6
therefore , 2×12/6
= 8
10 POINTS- PLEASE HELP-WILL MARK BRAINLIST- :)
Lakeisha (L) is flying a kite as shown. The kite's string is 29 feet long, and the kite (K) is currently at a height of 20 feet. Her dog (D) is directly underneath the kite. What is the distance between Lakeisha and her dog?
a. 25 ft
b. 20 ft
c .9 ft
d. 21 ft
Answer:
D
Step-by-step explanation:
Answer:
Nine
Step-by-step explanation:
please mark me brainlist
If the distance from Haley's house to school is 2.5 cm on the map and the actual distance is 3 miles. What is the scale for the map?
Fill in the blank with the correct number.
The number ________ is divisible by 2, 3, 4, 6, and 10.
A. 44
B. 180
C. 280
D. 385
Answer:
180
Step-by-step explanation:
Answer:
B 180
Step-by-step explanation:
180÷2=90
180÷3=60
180÷4=45
180÷6=30
180÷10=18
I WILL GIVE BRAINLIST TO WHOEVER ANSWERS IT!
Step-by-step explanation:
first convert fraction to percentage, then into a decimal.
The line in a fraction that separates the numerator and denominator can be rewritten using the division symbol. So, to convert a fraction to a decimal, divide the numerator by the denominator. If required, you can use a calculator to do this. This will give us our answer as a decimal.
kellen is saving for a new video game system,which costs $300. He receives an allowance of $30 per month, abd he usually spends $15 and budgets$15 each month for video games.How many months will it be untill Kellen has enough saved to buy the game system
Answer: 20 months
Step-by-step explanation: 300/15