5 points Two lines are represented by equations: 10x - 15y = 21 and y = kx + 5. What value of k will make lines perpendicular?​

Answers

Answer 1

Answer:

Step-by-step explanation:

10x - 15y = 21

15y = 10x - 21

y = ⅔x - 7/5

slope of line is ⅔

slope of any perpendicular to line is -3/2

y = kx + k

slope of line is k

k = -3/2


Related Questions

Bags of sugar come in 3 sizes:

Small bag: A 250 g bag costs 85p.
Medium bag: A 500 g bag costs £1.90.
Large bag: A 3 kg bag costs £3.90.

Calculate the cost of 3 kg for the small and medium bags.
Give your answer in pounds to 2 dp.
Write the bag that is the better value in the comments.

Answers

Answer:3kg of small bag costs £10.20 while 3kg of the medium bag costs £11.40. Hence, the bag with better value which is the cheapest is a 3kg of the big bag which costs £3.9

Step-by-step explanation:

An art teacher is buying clay by the pound. The teacher buys pounds of clay for $7.50. How much will pounds of clay cost? A. $8.25 B. $15.75 C. $9.09 D. $9.90

Answers

Answer:

nnnnnnnnnnnn

Step-by-step explanation:

What is the 35th number in the sequence 4, 7, 12, 19, 28,…?

Answers

Answer:

n²+3. is the nth term

Step-by-step explanation:

It cost Jocelyn $5.60 to send 56 text messages. How much would it cost to send 198 text messages?

Answers

Answer:

$19.80

Step-by-step explanation:

56÷5.60=.10

.10×198=19.8

Answer:

$19.80

Step-by-step explanation:

First, the unit rate of each text message is .1 so if we multiply 198 x .1 we get $19.80 which is your answer.

Hope this helps!

pleessssssssssssssssssss hellpp i will give you brainlist if you get coreted

Answers

Answer and Step-by-step explanation:

We are told that there is 24 cupcakes, which total up to be 36 dollars.

c will represent One cupcake.

We would do 36 divided by 24 to find the cost of One cupcake.

[tex]\frac{36}{24} = \frac{3}{2} = 1.5[/tex]

Each cupcake (c) is equal to $1.5.

Equations that would get us to this would be:

36/24 = c

36 = 24c

#teamtrees #PAW (Plant And Water)

Answer:

=9

Step-by-step explanation:

11919

16. Solve the inequality -24 < x- 3 - 8x.
O A.X23
OBX 3
OC.X2-9
D. X 2-3

Answers

Answer: The answer is x<3 but I can't really tell what the answer choices are

Step-by-step explanation:

-24<x-3-8x

-21<-7x

x<3

What value of x makes the equation below true 6x-7=26

Answers

Answer:

11/2

Step-by-step explanation:

6x−7=26

Step 1: Add 7 to both sides.

6x−7+7=26+7

6x=33

Step 2: Divide both sides by 6.

x= 11/2

6x-7=26
+7 +7
6x=33 (divide both sides by 6)
x= 11/2 or 5.5

ifā=r, then which of the following are true statements?
Check all that apply.
O A. n1/r = a
✓ B. = a
c. a1/nur
O D. a' = n.

Answers

Answer:

B. a = rⁿ

C. a¹/ⁿ = r

Step-by-step explanation:

ⁿ√a = r

The above expression can be simplified as follow:

1. ⁿ√a = r

Recall:

ⁿ√a = a¹/ⁿ

Therefore,

a¹/ⁿ = r

2. ⁿ√a = r

Take the n square of both side

(ⁿ√a)ⁿ = rⁿ

(a¹/ⁿ)ⁿ = rⁿ

a = rⁿ

Find the shaded area. Round your answer to the nearest tenth.

Answers

Answer:

[tex] {22cm}^{2} [/tex]

to the nearest tenth

Step-by-step explanation:

find the area of the semi circle

[tex] \frac{\pi \times 5}{2} = {7.85cm}^{2} [/tex]

find area of the whole shape

[tex]5 \times 6 = {30cm}^{2} [/tex]

then subtract both areas to get shaded area

[tex]30 - 7.85 = 22.15[/tex]

un tren ha recorrido dos tramos de un viaje en 5,12 horas el primer tramo mide 143, 39 kilómetros y el segundo 176,45 kilómetros ¿cuál es la velocidad media con la que el tren recorrido esos dos tramos?

creo que la tarea se trata de operaciones combinadas con decimales
con proceso porfavor​

Answers

Answer:

...

Step-by-step explanation:

Sabes que no estoy muy seguro porque solo hablo un poco de español solo con mi familia, ¿puedes poner esto en inglés?

Hi! Will someone please help me with expanding and simplifying this?:

5(2p+5) + 4(2p-3)

Thanks!

Answers

10p + 25 + 8p -12. Then it is 18p + 13

Last year, 12 hydrange bushes had a mean of 14 blooms each, with a standard deviation of 2. The dot plot shows the number of blooms on the same bushes this year after a new plant food is used. What conclusions can you draw about the use of the new plant foor and the number of blooms?​

Answers

Answer: The plant food produces more blooms on average, but the results aren't as consistent as before.

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

Explanation:

The dot plot leads to this data set

{8, 12, 12, 17, 17, 18, 18, 18, 19, 19, 20, 23}

Using pencil/paper, or using technology, you should find the following properties of this data set

mean = 16.75sample standard deviation = 4.11

The second value is approximate. Both the mean and standard deviation are larger than their original counterparts (mean = 14 and std dev = 2).

Since the mean is larger, this means the data points have been shifted to the right further. The larger standard deviation tells us that the data is more spread out.

So it appears this new plant food has made the number of blooms increase overall, but it's also made the data more inconsistent. A smaller standard deviation would mean a more narrow set of points and therefore more consistent values (they'd all be clumped around the mean better).

can someone do this for me

Answers

Answer:

Step-by-step explanation:

What is the area of the trapezoid shown below?


The area of the trapezoid is
square units.

Answers

Include the actual trapezoid please

Answer:

16

Step-by-step explanation:

2x2 - 8xy - 2y2 for x = 6 and y = 5

Answers

Answer:

-236

Step-by-step explanation:

Step 1 (plug in x and y): [tex](2)(6)(2)-(8)(6)(5)-(2)(5)(2)=[/tex]

Step 2 simplify): [tex](24)-(240)-(20)[/tex]

Step 3 (evaluate): [tex]-236[/tex]

The distance from Cherotich's home to school is
2km 400m. He goes to school in the morning
and returns in the evening daily. What distance
does he cover from Monday to Friday?

Answers

Answer:

24 kilometers

Step-by-step explanation:

Given

Represent the distance with x

[tex]x = 2km\ 400m[/tex]

Required

The distance covered for 5 days (i.e. Monday to Friday)

First, we calculate the distance covered in a day

He covers the same distance when going to school and when coming back from school.

So, the daily distance is:

[tex]Daily = 2 * x[/tex]

[tex]Daily = 2 * (2km\ 400m)[/tex]

[tex]Daily = 4km\ 800m[/tex]

In 5 days, he covers:

[tex]5\ days = 5 * Daily[/tex]

[tex]5\ days = 5 * (4km\ 800m)[/tex]

[tex]5\ days = 5 * (4km+ 800m)[/tex]

Open bracket

[tex]5\ days = 5 * 4km+ 5 * 800m[/tex]

[tex]5\ days = 20km+ 4000m[/tex]

Convert m to km

[tex]5\ days = 20km+ 4km[/tex]

[tex]5\ days = 24km[/tex]

porfavor necesito ayuda cuanto es -14x>-3

Answers

Balslsiksns kalsosijend f mlosoosk

x < 3 / 14        or       x < 0.2143

HELP PLS LMK IF U CANT READ IT AND I WILL TYPE IT

Answers

Answer:

cant read it type it pls

Step-by-step explanation:

Help me lolz i would like it

Answers

Answer:

2/11 you are welcome

Need help, will give a lot of points to whomever answers quickly!

Answers

Step-by-step explanation:

The first figure triangles are congruent by ASA axiom.

The second figure triangles are congruent by SSS axiom.

The third figure triangles are congruent by ASA axiom.

Hope it will help :)

Step-by-step explanation:

ASA Axiom. SSS Axiom ASA Axiom

6)
Tim was 27 years old 9 years ago. Which equation will tell you how old he is now?
A)
X + 9 = 27
B)
x-9-27
0
X + 9 = -27
D)
x-9--27

Answers

Answer:

It has to be x - 9= 27

so it can be x=36

If Tim was 27 years old 9 years ago, that’s the same as 27 + 9 = x where x is his current age.

We can rearrange this and bring 9 to the other side.

27 = x - 9

The last option D is correct.

A probability that is computed with the knowledge of additional information is called

Answers

Step-by-step explanation:

according to me it's conditional probability

Answer:

Conditional probability

Step-by-step explanation:

Conditional probability is the probability that is computed with the knowledge of additional information.

Someone please help~~~~~~~

Answers

y the ''~~~~~~~~~~~~~~~~''?

25 POINTS!!!


please answer quickly

Answers

Answer:

1) 6a - 2b

2) 2a + b

3) 2b + a

4) 4b - a

5) 3(a + b)

Step-by-step explanation:

2a + b ==> 2(3) + 5 = 6 + 5 = 11

2b + a ==> 2(5) + 3 = 10 + 3 = 13

3(a + b) ==> 3(3 + 5) = 3(8) = 24

4b - a ==> 4(5) - 3 = 20 - 3 = 17

6a - 2b ==> 6(3) - 2(5) = 18 - 10 = 8

Now order them from least to greatest

6a - 2b ==> 6(3) - 2(5) = 18 - 10 = 8

2a + b ==> 2(3) + 5 = 6 + 5 = 11

2b + a ==> 2(5) + 3 = 10 + 3 = 13

4b - a ==> 4(5) - 3 = 20 - 3 = 17

3(a + b) ==> 3(3 + 5) = 3(8) = 24

What is 3/4 divided by 1/2

Answers

Answer: Exact Form: 3/2 decimal form: 1.5

Step-by-step explanation:

I'll take sum help thx :) 100 points ​

Answers

Answer:

[tex] \huge\colorbox{red}{51.5}[/tex]

Step-by-step explanation:

to understand thisyou need to know about:geometryPEMDAStips and formulas:area of triangle:½×bharea of rectangle:l×wlet's solve:

the area of first triangle:

½×3×2½×63

the area of second triangle:

½×3×3½×94.5

the area of the rectangle:

(8+3)×411×444

the area of the full shape:

3+4.5+447.5+4451.5

Answerfffffff[tex]\lim_{n \to \infty} a_n \lim_{n \to \infty} a_n \pi \pi \pi \pi[/tex]

Can somebody help me?

Answers

Answer:

Its the 1st answer: A

Step-by-step explanation:

I already knew this.

Answer:

It should be A

Step-by-step explanation:

I hope this helps

I need help with question 5.Please show ur work! Thank you!

Answers

Answer:

1:3

Step-by-step explanation:

you can simplify both factors by 3 so 3:9 will be 1:3

PLEASE HELP ME I WILL GIVE BRAINLIEST

Answers

Answer:65

Step-by-step explanation:

Find the value of each variable.

Answers

Step-by-step explanation:

x=15

y=15√3

sure 100%

welcome

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