Answer: Answer is 9
Step-by-step explanation:
Answer:
the answer to this question is C. 9
Step-by-step explanation:
If x = 3 and y = 5, work out the value of a) 4x - 2y
b) 2x2 + 3y2
Answer:
A) 12-10
B)36+225
Step-by-step explanation:
A) 3x4=12, 5x2= 10= 12-10
B) 3x2=6x6=36, 3x5=15x15=225=36+225
For x = 3 and y = 5 the values of the given expressions are (a) 4x - 2y = 2 and (b) 2x² + 3y² = 93.
What is substitution?Substitution is a mathemaical technique for replacing variables with specific or covnient values according to the context.
When the values of variables are given to solve an equation we just have to replace those numerical values in place of the given variables.
Given, x = 3 and y = 5.
∴ 4x - 2y is,
= 4(3) - 2(5).
= 12 - 10.
= 2.
And
2x² + 3y².
= 2(3²) + 3(5²).
= 2(9) + 3(25).
= 18 + 75.
= 93.
learn more about substitution here :
https://brainly.com/question/16609931
#SPJ2
Need help what’s the irrational number?
Answer:
B. √6
Step-by-step explanation:
Irrational number is a number that cannot be expressed in a form of fraction
2.5 = 5/2
√6 = 2.49...
1/2 = 1/2
√9 = 3/1
Write in Slope Intercept form
Answer:
y=5/2x
Step-by-step explanation:
the y intercept is (0,0) so it isn't included in the equation. now we know the middle solution isn't correct. the points we use to find slope are (-2,-5) and (2,5) which ends up being 5/2.
Rewrite with positive exponents: 7^-3
Answer:
1/7^3 (One over seven thirds)
Step-by-step explanation:
Which angles are corresponding angles?
Check all that apply.
The corresponding angles are
2 and 6
3 and 7
5 and 3
and, 4 and 8
What are corresponding angles?
Any pair of angles each of which is on the same side of one of two lines cut by a transversal and on the same side of the transversal are called corresponding angles.
Or, when two parallel lines are intersected by a third one, the angles that occupy the same relative position at each intersection are known to be corresponding angles to each other.
According to the given question.
We have a diagram, in which there are two parallel lines and one another line which is intersecting these two lines.
From the given diagram,
The pairs of angles 2 and 6, 1 and 5, 3 and 7, and 4 and 8 are occupying the same relative positions, upper right side, upper left side, lower left side, and lower right side respectively.
Therefore, we can say that angles
2 and 6
3 and 7
5 and 3
and, 4 and 8
are corresponding angles.
Find out more information about corresponding angles here:
https://brainly.com/question/1597341
#SPJ2
Use quadrilateral ABCD. What value for m DAB would show ABCD is a parallelogram?
Answer:
m∠DAB = 101°
x = 7
y = 12
Step-by-step explanation:
Properties of a parallelogram,
1). Opposite sides of a parallelogram are equal and parallel.
2). Opposite interior angles are equal in measure.
3). Consecutive interior angles are supplementary.
By the first property,
BC ≅ AD
2x + 4 = 3x - 3
3x - 2x = 4 + 3
x = 7
AB ≅ CD
2y + 10 = 3y - 2
3y - 2y = 10 + 2
y = 12
By second property,
m∠ABC = m∠ADC
2z + 15 = 3z - 17
3z - 2z = 15 + 17
z = 32
Therefore, m∠ADC = (3z - 17)°
= 3(32) - 17
= 96 - 17
= 79°
By third property,
m∠ADC + m∠DAB = 180°
79° + m∠DAB = 180°
m∠DAB = 180° - 79°
m∠DAB = 101°
A car is traveling at a speed of 50 meters per second. What is the cars speed in kilometers per hour? How many kilometers will the car travel in 3 hours?
Answer:
180 kilometers per hour, 540 in 3 hours
Help please i always get the numbers mixed up.
-2(7 – n) + 4
What is the answer to this any body know it??????????
Answer:
2n+10
Step-by-step explanation:
you just distribute the -2 and you get -14+2n+4 and then add and you'll get 2n+10
if you are solving for the variable n then you would want your equation like this 2n+10=0
next you would put the 10 on the other side of the equation and have 2n=-10
finally you would divide by 2 and get n=-5
if it takes 7 hours to mow 4 lawns st the rate how many lawns could be mowed in 35 hours
Answer:
Lets do 7 times 5. This is 35. That means we will be multiplying 5 by 4 to get 20, so 20 lawns in 35 hous\rrse
Step-by-step explanation:
Anyone want points or brainiest here is a question. What is 4-1!
:D
Answer:
it would 41 amiright?
Answer:
4-1=3
Step-by-step explanation:
hope it helps and have a great day :)
Solve the System of equations -8x+3y= -17 and 3x-y=7 by combining the equations.
Answer: x = 1, y = -3
Step-by-step explanation: you're welcome :)
Answer:
the answer is (x,y) (4,5)
Classify the following triangle. Check all that apply.
I A. Obtuse
B. Acute
C. Scalene
D.slught
E. Isosceles
F. Equilateral
Answer: B. Acute and F. Equilateral
Step-by-step explanation: Acute triangles contain interior angles that are less than 90 degrees. All triangles must have interior angles that add to 180 degrees when combined. In this triangle, all interior angles are equal. Therefore, we can divide 180 by the 3 angles to find that each angle is 45 degrees. 45 degrees is less than 90, so it is an Acute Triangle.
In equilateral triangles, all sides have the same length. We can see in the diagram that all of the sides contain the same marking, indicating they are the same length. So, the triangle is also equilateral.
Hope this helps!
Alexa has a points card for a movie theater. She receives 25 rewards points just for signing up. She earns 4.5 points for each visit to the movie theater. She needs 61 points for a free movie ticket. How many visits must Alexa make to earn a free movie ticket?
Answer:
8
Step-by-step explanation:
25+ (4.5 x 8)
25+ 36
=61.
She needs 8 visits
Answer:
8
Step-by-step explanation:
61 - 25 = 36
36 divided by 4.5 = 8
5n = 36
Solve for n
Please show steps thanks so much
Answer:
n = 7.2
Step-by-step explanation:
I just divided both sides by 5.
5n (÷ 5) = 36 (÷ 5)
n = 7.2 or 7 [tex]\frac{1}{5}[/tex]
You can choose between using the decimal or the fraction.
Answer:
n=7.2
Step-by-step explanation:
=> 5n=36
=> 5n/5 =36/5 [Divide by 5 on both the sides]
=> n=7.2
Hope this helps you.
- 9b = - 45
i need help asap pls
Answer:
b=5
Step-by-step explanation:
Answer:
b=5
Step-by-step explanation:
Not copying....
have a nice day
At a sale, coats were sold for 52% of their original price. If the coats originally cost
$200 each, how much did a coat cost on sale?
Help me please
Answer:
Answer is 104
Step-by-step explanation:
The selling price of the coat is $104.
What is a percentage?The percentage is calculated by dividing the required value by the total value and multiplying by 100.
Example:
Required percentage value = a
total value = b
Percentage = a/b x 100
Example:
50% = 50/100 = 1/2
25% = 25/100 = 1/4
20% = 20/100 = 1/5
10% = 10/100 = 1/10
We have,
Original price = $200
Selling price.
= 52% of $200
= 52/100 x 200
= $104
Thus,
$104 is the selling price of the coat.
Learn more about percentages here:
https://brainly.com/question/11403063
#SPJ6
Ashton plays three games of checkers with his grandmother. Identify the
sample space (the correct list possible outcomes) for Ashton's results.
W = win, L = loss
The notation WLL means Ashton won the first game, lost the second game,
and lost the third game.
A. {WWWW, WLWL, LLLL}
B. {WW, WL, LW, LL}
C. {WWW, WWL, WLW, WLL, LWW, LWL, LLW, LLL)
D. {WWW, WWL, LLL}
Answer:
C
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Travis wants to build a small rectangular fence. He has enough material to build a fence that has a perimeter of 100 feet. Let x represent the length of the fence in feet.
Travis wants to use all of the available materials. What values of x will fence in an area of at least 600 square feet?
Answer:
x=250?
Step-by-step explanation:
you being vague bro
PLZ HELP !!!! WILL MARK BRAINLIEST, THIS IS DUE IN 15 MINUTIES !!!ANYONE PLEASEPLZ HELP !!!! WILL MARK BRAINLIEST, THIS IS DUE IN 15 MINUTIES !!!ANYONE PLEASE
Answer:
C
Step-by-step explanation:
in y=mx+b, b= the y intercept
-2+8=6
Answer:
It's C.
Step-by-step explanation:
When you put y=x-2 into a graphing calculator, the y-intercept is -2. When I counted vertically 8 times, the y-intercept changed to 6.
What is the total area of the figure below?
Answer:
141
Step-by-step explanation:
First find the area of the trapezoid
(16 + 10) * 9 / 2 = 117
Then find the area of the triangle
0.5 * b * 6 = 24
Add them both together
117 + 24 = 141
Answer: 141
GIVE ME BRAINLEST
Step-by-step explanation:
Find the lateral surface area of the prism.
24 in.
4 in.
5 in.
I WILL GIVE BRAILIEST
Answer:
280m to the power of 2
Step-by-step explanation:
A library has 2000 books. There are 3 times as many non fiction books as fiction books. Write and solve an equation. PLEASE HELP ASAP!!!???
Answer:
x = fiction books
3x = nonfiction books
x + 3x = 2000
After you solve for x, (which is the number of fiction books), you can plug its value into the equation for nonfiction books (3x) and that will give you the number of non fiction books.
Step-by-step explanation:
Hope this helps! <3
ahhhhhhhhhhhhhhhhhhhh
Answer:
10.2
Step-by-step explanation:
Plot the point, (−1,−1.5).
Select the point tool. Then, click on the graph to plot the point.
Answer:
hope this helps
Step-by-step explanation:
how many centimeters is the growth rate of the plant per week? Please i really need this. PICTURE WHEN YOU CLICK
Answer:
4 and 3/4 YOU GOT THIS!!
Step-by-step explanation:
Answer:
I believe the answer would be 1/2 a centimeter per week, hope this helps
What is the ratio of a:b, knowing that a-b / a+b = 3/5
Answer
i am going to give you 2 answer
1. solving for A is: A=3/5 -b
2. solving for B is: B=3/5 -a
Step-by-step explanation:
correct me if I'm wrong
let me know if it's correct or not
Answer:
soo what is the answer
Step-by-step explanation:
Find the slope of the line passing through the points (7, 8) and (7,-9).
Answer:
the slope is undefined
Step-by-step explanation:
[tex]m = \frac{-9 - 8}{7-7} \\m = \frac{-17}{0 }\\m = DNE[/tex]
Step 3: Equations and Inequalities Unit Test
6. Solve for j.
j - 18 = 43
Answer:
j = 61
Step-by-step explanation:
j - 18 = 61
Step One: Add your addend and your total together.
18 + 43 = 61
Step Two/Check: Subtract your original total with one of your original addend to get the second original addend you had before.
61 - 18 = 43
Answer:
j = 61
Evaluate the expression for k = 2.
4k2 =
Answer:
16
Step-by-step explanation:
4*2*2
8*2
16