5x+2y=10
x+ay=4
Which value of a makes these equations have no solution.

Answers

Answer 1

Answer:

2

Step-by-step explanation:

Rearrange to same form:

2y = -5x + 10

y = -5/2x + 10

ay = -5x + 4

Parallel lines have no intersection and solution, thus a = 2

Answer 2

Answer:

Step-by-step explanation:

For there to be no solution the lines must be parallel and have different y intercepts. To be parallel they must have the same slope.

Solving each for y

y=(10-5x)/2 and y=(4-x)/a

So the slopes are

-5/2 and -1/a, if they are equal

-5/2=-1/a

-5a=-2

a=2/5


Related Questions

What is the area of the segment?

Answers

Answer:

The Area of a Segment is the area of a sector minus the triangular piece (shown in light blue here). There is a lengthy reason, but the result is a slight modification of the Sector formula: Area of Segment = θ − sin(θ) 2 × r2 (when θ is in radians) Area of Segment = ( θ × π 360 − sin(θ)2 ) × r2 (when θ is in degrees)

Ariana invests $2,000 at a rate of 6% annual interest
compounded quarterly. Approximately how much is Ariana's
investment worth in 3 years?
I

Answers

Step-by-step explanation:

Compounded quarterly means n=4

The formula for the volume of a pyramid is V=1/3 Bh. What is h expressed in in terms of B and V?

Answers

V = 1/3 * B * h     /*3

V * 3 = B * h       /B

V * 3 / B = h

h = V * 3 / B

5.7 x 10 to the power of 1


5.7 x 10 to the power of 2


5.7 x 10 to the power of 3

Answers

Answer:

idontk nowthis is half a        ss

Step-by-step explanation:

please helppp Which ordered pairs lie on the line shown in the graph?
864
28
CLEAR
SUBMIT
(-2,- 6.5), (0, -0.5), (1, 2.5), (2, 5.5)
(-6.5, -2), (-0.5, 0), (2.5, 1), (5.5, 2)
(2,6,5), (0, 0.5), (-1, -2.5), (-2, -5.5)
(6.5, 2), (0.5, 0), (-2.5, -1), (-5.5, -2)
0

Answers

Answer:

I think a option is correct

Step-by-step explanation:

because they are point on the graph

-2,-6.5,(0,-0.5),(1,2.5),2,5.5)

9. Solve for x in the parallelogram below.
D
E
16x+2
50
с
F
Oo
10
O
3
05

Answers

Answer:

3

Step-by-step explanation:

50=16x+2

50-2=16x+2-2

48=16x

48/16=16x/16

3=x

the only answer it can really be is 3

Find the total surface area of the number
cube.
2 in.
2 in.
2 in.

Answers

Answer: 24 Inches

Step-by-step explanation:

what is the answer of4 ( 2x + 3) -2x

Answers

Answer:

x= 2

Step-by-step explanation:

Divide each term in

6

x

=

12

by

6

.

6

x

6

=

12

6

Cancel the common factor of

6

.

Tap for more steps...

x

=

12

6

Divide

12

by

6

.

x

=

2

What ratio is an equal ratio of 1:3?

Answers

Answer:

Any ratio that can be simplified to 1:3

Step-by-step explanation:

Any ratio would work for this answer, but the ratio would have to simplify back to 1 to 3.

Here are some examples you could use:

2:6 = 1:3

3:9 = 1:3

4:12 = 1:3

6:18 = 1:3

7:21 = 1:3

10:30 = 1:3

Find the area of the shaded region. Round to the nearest tenth.

Answers

Answer:

Step-by-step explanation:

r = 8.35 ft

area of circle = πr² = 69.7225π ft²

θ = 5π/9 radians

area of unshaded segment = r²(θ-sinθ)/2 ≅ 26.51 ft²

shaded region = 69.7225π - 26.51 ≅ 192.53 ft²

The area shaded region is found to be as 192.97 ft².

What is a circle?

A circle is a geometric shape, all of which points are equidistant from a fixed point called as the centre.

The centre of the circle does not lie on it.

The largest line segment that can be drawn inside a circle is its diameter.

For the given circle,

Radius is given as 8.35 ft.

And, the angle subtended by minor arc is 100°.

Then, the angle formed by major arc is 360 - 100 = 260°.

Noiw, the area of shaded region is given as below,

Area of the sector for major arc + Area of triangle

⇒ 260/360 × πr² + 1/2 × r²

Plug π = 3.14 and r = 8.35 to obtain,

⇒ 13/18 × 3.14 × 8.35² + 1/2 × 8.35²

⇒ 192.97 ft²

Hence, the area of the shaded region is obtained as 192.97 ft².

To know more about circle click on,

brainly.com/question/11833983

#SPJ2

On Monday, the high temperature in Abilene was 75.6 degrees Fahrenheit and the high temperature in New York City was 54 degrees Fahrenheit. How many times greater was the high temperature in Abilene than the high temperature in New York on Monday?

Answers

Answer:

On monday,the high temperature in abilene was 75.6 degrees Fahrenheit and the temperature in New york city was 54 degrees Fahrenheit.How many times greater was the high tempareture in Abilene than the high temperature in New York on monday plz show your work

Step-by-step explanation:

There is a spinner with 10 equal areas, numbered 1 through 10. If the spinner is spun
one time, what is the probability that the result is a multiple of 5 or a multiple of 2?

Answers

Answer:

3/5

Step-by-step explanation:

In the numbers 1 thru 10, there are 5 multiples of 2 (2, 4, 6, 8, 10) and 2 multiples of 5  (5, 10).  Since you cannot count 10 twice, there are 6 possibilities (2, 4, 5, 6, 8, 10)

So the probability of spinning a multiple of 2 or 5 is 6/10 = 3/5

Answer:2/10 probabilty for the multiple of 5 and a 5/10 or 50% chance that it will be a multiple of 2

Step-by-step explanation: 10 areas, there are 2 multiples of 5,( 5 and 10 )and there is a 2/10 chance of landing on landing 5 or 10 because there are 2 multiples of 5. There are also 5 multiples of 2, (2, 4, 6, 8, 10) 5/10 chance because there are 5 multiples out of 2

A company is going to make an oil container in the shape of a cylinder. As shown below, the container will have a height 6 m of and a radius of 5 m. The container will be made from steel (including its top and bottom). Suppose the total cost of steel will be $12,434.40. How much will the steel cost per square meter? Use for 3.14 for II, and do not round your answer.​

Answers

Answer:

54

Step-by-step explanation:

Answer:

For oil container in the shape of a cylinder

radius (r) = 6 m

height (h) = 7 m

TSA of Cylinder

= 2πr ( r + h)

= 2 * 3.14 * 6 ( 6 + 7)

= 2 * 3.14 * 6 (13)

= 2 * 3.14 * 6 * 13

= 489.84 square meter

Now,

the total cost of the steel will be $18,613.92.

= 18613.92/489.84

= $38

Thus, The TSA of a cylinder is 489.84 square meter and $38 will the steel cost per square meter.

Omg!? Is 96 correct??

Answers

If you are finding the perimeter I believe you would just add up the four sides, getting 46

If a 30-inch candle constantly burns 5 inches every minute, then at the end of what minute will the entire candle disappear?

Answers

Answer:

Step-by-step explanation:

Stephanie bought a chair for $124.00. The finance charge was $24 and she paid for it over 12 months. (Finance Ch arg e: #Months)(12) Use the formula Amount Financed calculate her approximate APR. Approximate APR to Round the answer to the nearest tenth.
O 20.5%
O 19.4%
O 1.6%
O 1.5%​

Answers

20.5% im not sure about that

7x + 2x^2 + 3x^2 - 2x

Answers

Answer:

5^2+5

Step-by-step explanation:

There you go :)

5^2+5
Bye bye!!:00000

I WILL MARK BRAINLIEST!! What is the value of x in this triangle?

Answers

Answer:

x = 2

Step-by-step explanation:

Answer:  x = 8

=============================================================

Explanation:

The tickmarks tell us which sides are the same length. This in turn tells us that points N and O are midpoints of LJ and LK respectively (since midpoints cut a segment in half). We consider segment NO to be a midsegment.

Recall that midsegments are half as long as the side they are parallel to. That means segment NO is half as long as JK. This reverses to segment JK being twice as long as segment NO.

-------------

JK = 2*(NO)

2x+8 = 2*(12)

2x+8 = 24

2x+8-8 = 24-8 .... subtract 8 from both sides

2x = 16

2x/2 = 16/2 ...... divide both sides by 2

x = 8

If x = 8, then 2x+8 = 2*8+8 = 16+8 = 24. This shows that segment JK is 24 units long which is double that of midsegment NO being 12 units long. This confirms we have the correct x value.

What is the slope of line help please pleaseeee

Answers

Answer:

3/2

Step-by-step explanation:

Slope = rise / run

Rise: 3

Run: 2

Slope = 3/2

Answer:

Awnser: the slope is y=-3/1

Based on your data, describe the relationship between age and the number of U.S. states a

person can name in 60 seconds.

I

Answers

Answer:

where is teh data?

Step-by-step explanation:

The midpoint of AB is M. If the coordinates of M are
(1/2, -2) and the coordinates of B are (6, 1), what are the coordinates of A?

Answers

9514 1404 393

Answer:

  A = (-5, -5)

Step-by-step explanation:

Solving ...

  M = (A +B)/2

for A, you find ...

  A = 2M -B

  A = 2(1/2, -2) -(6, 1) = (1-6, -4-1)

  A = (-5, -5)

What is the volume of a sphere with a radius of 21 units?
O A. 9261 7 units
O B. 12,348 units3
O C. 5887 units
D. 37,04477 units3

Answers

Answer: D

Step-by-step explanation:

The volume of the sphere is 12,348 cubic units.

Option B is the correct answer.

What is a sphere?

It is a three-dimensional figure.

The formula for the volume of a sphere is given by V = (4/3)πr³,

We have,

The formula for the volume of a sphere is given by V = (4/3)πr³,

where r is the radius of the sphere and π is a constant approximately equal to 3.14.

Substituting the value of r = 21 units, we get:

V = (4/3)π(21)³

V = (4/3)π(9261)

V = 154(3)(7²)

V = 22,562π cubic units (using 22/7 as an approximation of π)

Rounding to the nearest whole number, the volume of the sphere is approximately 12,348 cubic units.

Thus,

The volume of the sphere is 12,348 cubic units.

Learn more about Sphere here:

https://brainly.com/question/12390313

#SPJ7

Can you guys help me please ASAP

Answers

B would be your best answer looking at the graphic chart

1. Toni bought 5 t-shirt for $54 . They each cost the same . Also please tell me how to right it

Answers

Answer:

5 T-shirts = $54

10 T-shirts = $108

20 T-shirts = $216

The line plot below shows the amount of water, in liters, in 4 equal-sized containers

How many liters of water will each container have if the total amount is distributed equally among the 4 containers?

PLS HELP

Answers

Answer: multiply and estimate

Step-by-step explanation:

Answer:

the answer is : a

Step-by-step explanation:

Amar thinks of a number If he takes away 6 from ⅔ ? of number, the result is
22. Find the number.​

Answers

Let's assume the number as x

According to the question,

2/3x-6=22

2x-6=22×3

2x= 66-6

2x=60

x=60/2=30

Therefore, as x=30, The number is 30 itself.

Distance and midpoint formulas

Answers

Derived from the Pythagorean Theorem, the distance formula is used to find the distance between two points in the plane. The Pythagorean Theorem, a2+b2=c2 a 2 + b 2 = c 2 , is based on a right triangle where a and b are the lengths of the legs adjacent to the right angle, and c is the length of the hypotenuseAnswer:

Step-by-step explanation:


The percentage increase on an item is 9 %. The old price is R455.00 Calculate the new
price.

Answers

Hubbub is g vu ok just in b by

No clue on how to do this

Answers

Answer:

parallelogram

Step-by-step explanation:

That's the answer....

How to turn a percentage into a decimal

Answers

Answer:

Divide a percent by 100 and remove the percent sign to change it  from a percent to a decimal.

Step-by-step explanation:

1. Example: 9 % is 0.09

2. Example: 8% is 0.08

3 .Example: 10% will change to 10/100 =decimal 0.10

That how it work just follow the example

[tex]\huge\text{Hey there!}[/tex]

[tex]\large\textsf{You have DIVIDE your GIVEN PERCENT by 100 because}\\\large\textsf{percentages runs out of 100}[/tex]

[tex]\large\textsf{Example }\downarrow[/tex]

[tex]\mathsf{\dfrac{75\%}{100}}[/tex]

[tex]\mathsf{= \dfrac{75}{100}}[/tex]

  [tex]\boxed{ \textsf{\bf 0.75}}\large\checkmark[/tex] ☑️

[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

Other Questions
PLEASE RESPOND WITHIN 20 MINUTES PLSSSSSSSSSSSSSSS!!!!!!!!!!!!!!!!!!!!!!! Independent PracticeComplete the statement.0.25 m= cmA.25B.0.0025C.2.5D.250 Give an example of a recent innovation that promotes sustainability. I will offer more points maybe... 2.142 Dag into gram and milligram Linear function question, please help!:D Whats the y-int?Whats the domain and range? why did the Hashemites send Abu Muslim to Persia?a) to learn Islamic lawb) to start a revolutionc) to assassinate the caliphd) to you spread Islam how do people experience christianity through the five senses in the medieval world? Why was it important for the South to maintain an equal balance in the Senate? On a bicycle ride, Betty rode 7 miles in 2 hours.At the same rate of speed, how far could she ride in 8 hours? I need showing work for this question for finding the volume of it The short run industry supply curve is the Group of answer choices sum of all of the individual firms' ATC curves above the MC. average of all of the individual firms' marginal cost curves above the AVC. sum of all of the individual firms' marginal cost curves above the AVC. average of all of the individual firms' ATC curves above the MC. Which matrix equation represents the system of linear equations?3x-9y-Z=-4-2x + y - 8z = 15x + 2y + 2z = 9-175 x 31 1 - 8y = -29 2 2-4 -9NLO3 -9-111x-4-21 - 8y =1B522N9x3 -9-4-1-211 ll y =8ir N29Z2 Which group of people are NOT a Native American tribe? A) Navajo B) Quakers C) Seminole D) Sioux Solve for x:x/7 - 6 = 3A. 27B. -63C. -27D. 63 I WILL GIVE BRAINLIEST IF YOU EXPLAIN YOUR ANSWER!!Kaylee and Rory have a circular swimming pool. The pool has a cover that fits snuggly over the top of it. If the radius of the pool is 11 ft, what is the surface area of the cover? !!!ILL MAKE U BRAIL LIST GIVE YOU A THANK YOU AND ADD THE 5 STARES AND PLUS U GET POINTS!!!! ________________________________________AND ALL I NEED HELP IS 3 POEMS!!!!!________________________________________THERE IS A EXAMPLE!! OF A POEM BY: Charlotte ________________________________________LINE 1: ABSTRACT NOUN IS A CONCRETE NOUNLINE 2,3,4: DESCRIBING THE CONCRETE NOUN- WITCH REVEALS METAPHORS FOR THE ABSTRACT _______________________________________PLZZZ AT LEAST DO 2,3 OR 4 POEMS!!!!! When making wraps, what do you need to keep in mind? Culinary ch.19 What two numbers are exactly four units away from 6