helpp me i dont know the answer​

Helpp Me I Dont Know The Answer

Answers

Answer 1
Answer: k = -1

2m = -6 that means m = -3
You can tell by dividing -6 by 2 to get -3

Now we know m = -3 let’s put that in the equation

3(-3) - 4k = -5

-9 - 4k = -5

Just try the option you have to figure it out. You know it’s not -3.5 or 3.5 because it’s a whole number so it wouldn’t be anything that’s a decimal.

-9 - 4(1) = ?

-9 - 4 = 13

Now let’s try doing -1

-9 - 4(-1) = ?

-9 - -4 = -5


Related Questions

The area of the parallelogram is 24 square miles find its base and height?

Answers

Answer:

Base-3 mi

Height-8 mi

Step-by-step explanation:

The area of a parallelogram is base*height.

Base*height=24

Now we just need to number that multiply to get 24. Those numbers can be 3 and 8 because 3*8=24.

The dimension of the parallelogram are 1 x 24, 2 x 12, 4 x 6, 8 x 3, and 24 x 1.

What is the area of the parallelogram?

The opposite sides of the parallelogram are parallel and congruent. Let H be the height and W be the width of the parallelogram.

Then the area of the parallelogram will be

Area of the parallelogram = H × W square units

The area of the parallelogram is 24 square miles.

Then the dimension of the parallelogram is given as,

Area = 24

Area = 2 x 2 x 2 x 3

Area = 1 x 24, 2 x 12, 4 x 6, 8 x 3, 24, 1

The dimension of the parallelogram are 1 x 24, 2 x 12, 4 x 6, 8 x 3, and 24 x 1.

More about the area of the parallelogram link is given below.

https://brainly.com/question/16052466

#SPJ5

me ayudan por favor​

Answers

Answer:

1) 5.091

2) 54.6731

3) 2.954

4) 0.17278

5) 68.031

Please help!!! ASAP!!

Answers

Step-by-step explanation:

the total length of all lines is 100.

there are 2 times a d line, and 5 times an x line.

well, what we have here is an equation :

2d + 5x = 100

2d = 100 - 5x = 5×(20 - x)

d = 5/2 × (20 - x) = 50 - 5x/2

take whatever form fits best to what your teacher does in class.

∠A and \angle B∠B are vertical angles. If m\angle A=(7x-27)^{\circ}∠A=(7x−27) ∘ and m\angle B=(3x+29)^{\circ}∠B=(3x+29) ∘ , then find the value of x.

Answers

Answer:

x = 14

Step-by-step explanation:

Vertical angles are congruent , then

7x - 27 = 3x + 29 ( subtract 3x from both sides )

4x - 27 = 29 ( add 27 to both sides )

4x = 56 ( divide both sides by 4 )

x = 14

Randi made nine scarves from 4 m of
fabric. How many scarves can she make
from 28 m of the same fabric?

Answers

Ratio:
9:4
63:28
You have to do 9:4 times 7 to get the answer

Answer:

7 scarves

Step-by-step explanation:

you divide 28 by 4

[tex]\sf 4\left(x+2\right)-2x=0[/tex]

Answers

Answer:

x = -4

Step-by-step explanation:

Step 1: Apply distributive property.

[tex](4)(x)+(4)(2)-2x=0[/tex] [tex]4x + 8 - 2x = 0[/tex]

Step 2: Combine like terms.

[tex](4x-2x)+(8)=0[/tex] [tex]2x + 8 = 0[/tex]

Step 3: Subtract 8 from both sides.

[tex]2x + 8 - 8 = 0 - 8[/tex] [tex]2x = -8[/tex]

Step 4: Divide both sides by 2.

[tex]\frac{2x}{2} = \frac{-8}{2}[/tex] [tex]x = -4[/tex]

Step 5: Check if solution is correct.

[tex]4(-4+2)-2(-4)=0[/tex] [tex](4)(-4)+(4)(2)+8=0[/tex] [tex]-16 + 8 + 8 = 0[/tex] [tex]-8 + 8 = 0[/tex] [tex]0 = 0[/tex]

Therefore, x = -4.

How many times longer does it take light from the Sun to reach Neptune than Mercury? Express this number in standard notation. Explain your reasoning

Answers

Answer:

Step-by-step explanation:

The ratio of light times will be the ratio of distances:

 (light time to Neptune) / (light time to Mercury)

    = (Neptune distance)/(Mercury distance)

    = (27.93×10^8 mi)/(0.3598×10^8 mi) = 27.93/0.3598

    ≈ 77.6

What is the equation of the line that passes through the point (-8,0) and has a slope of - 1/4

Answers

Answer:

y = -1/4 -2

Step-by-step explanation:

please help me! i dont know how to solve this problem

Answers

Answer:

(E) 3

Step-by-step explanation: solve mo dapat pano mo malaman

pero I hope I helped

The mass of a pail is 2490 g when it is 1/4 filled with sand. It has a mass of 9240 g when it is fully filled with sand. Find the mass of the pail when it is empty.

Answers

2490g x 4 = 9960g
9960-9240=720g
Ty answer is 720g
Please mark brainelist

18t + 11v = w - 2t
Solve for t

Answers

Answer:

11v-w= -20t

Step-by-step explanation:

combine like terms

20t+11v=w

isolate variable

11v=w-20t

11v-w= -20t

Example 6
Solve for w: w + 2 > 4.

Answers

Answer:

w > 2

Steps:

w +2  > 4

w + 2 - 2 > 4 - 2

w > 2

7/12 divided by 2 5/8

Answers

Answer:

2/9

Step-by-step explanation:

Answer: 2/9

Step-by-step explanation:

First write as an improper fraction.

2 5/8 is equal to 21/8

Then re-write

7/12 divided by 21/8

Then multiply 7/12 by the reciprocal of 21/8 which is 8/21

The answer is 56/252

Simplify

The answer is 2/9

Which of the following is not always true for adjacent angles? * (
)a) They have a common arm.
b) They have a common vertex.
c) Their sum is 180°.
d) Their other two arms lie on the opposite side of the common arm.

Answers

Answer:

C

Step-by-step explanation:

30m of material costs £210.how much would 18 m of this material cost?

Answers

Step-by-step explanation:

given,

30m of material cost = £210

so, cost of 1m material = 210/30 = £7

therefore, cost of 1m material is £7

now,

cost of 18m Material = 18 × 7 = 126

therefore, cost of 18m material is £126.

hope this answer helps you dear!

Answer: 126

Step-by-step explanation:

30 m of material cost 210

1 m of material cost [tex]\frac{210}{30}[/tex] Or 7

18 m of material cost 7 × 18 = 126

please give me a brainliest answer

I'm lost, please help (NO LINKS)​

Answers

Answer:

Adam's total cost: $9.20

Cindy's total cost: $9.20

Step-by-step explanation:

Since Adam and Cyndi's total bill costs $16, evenly splitting the cost means that each of them has to pay $8, not including the tip.

To find out the dollar value of their 15% tip, multiply $8 by 0.15:

$8 × 0.15 = $1.20.

Adam and Cindy will have to pay $8 (lunch cost) + $1.20 (tip) = $9.20 separately.    

Would appreciate the help ! ​

Answers

This is one pathway to prove the identity.

Part 1

[tex]\frac{\sin(\theta)}{1-\cos(\theta)}-\frac{1}{\tan(\theta)} = \frac{1}{\sin(\theta)}\\\\\frac{\sin(\theta)}{1-\cos(\theta)}-\cot(\theta) = \frac{1}{\sin(\theta)}\\\\\frac{\sin(\theta)}{1-\cos(\theta)}-\frac{\cos(\theta)}{\sin(\theta)} = \frac{1}{\sin(\theta)}\\\\\frac{\sin(\theta)*\sin(\theta)}{\sin(\theta)(1-\cos(\theta))}-\frac{\cos(\theta)(1-\cos(\theta))}{\sin(\theta)(1-\cos(\theta))} = \frac{1}{\sin(\theta)}\\\\[/tex]

Part 2

[tex]\frac{\sin^2(\theta)}{\sin(\theta)(1-\cos(\theta))}-\frac{\cos(\theta)-\cos^2(\theta)}{\sin(\theta)(1-\cos(\theta))} = \frac{1}{\sin(\theta)}\\\\\frac{\sin^2(\theta)-(\cos(\theta)-\cos^2(\theta))}{\sin(\theta)(1-\cos(\theta))} = \frac{1}{\sin(\theta)}\\\\\frac{\sin^2(\theta)-\cos(\theta)+\cos^2(\theta)}{\sin(\theta)(1-\cos(\theta))} = \frac{1}{\sin(\theta)}\\\\[/tex]

Part 3

[tex]\frac{\sin^2(\theta)+\cos^2(\theta)-\cos(\theta)}{\sin(\theta)(1-\cos(\theta))} = \frac{1}{\sin(\theta)}\\\\\frac{1-\cos(\theta)}{\sin(\theta)(1-\cos(\theta))} = \frac{1}{\sin(\theta)}\\\\\frac{1}{\sin(\theta)} = \frac{1}{\sin(\theta)} \ \ {\checkmark}\\\\[/tex]

As the steps above show, the goal is to get both sides be the same identical expression. You should only work with one side to transform it into the other. In this case, the left side transforms while the right side stays fixed the entire time. The general rule is that you should convert the more complicated expression into a simpler form.

We use other previously established or proven trig identities to work through the steps. For example, I used the pythagorean identity [tex]\sin^2(\theta)+\cos^2(\theta) = 1[/tex] in the second to last step. I broke the steps into three parts to hopefully make it more manageable.

I need help please and thank you​

Answers

Answer:

hey how to ask questions with pictures in brainly?

here are the answers:
1) b
2) d

20) Three consecutive odd numbers sum to 315. Write an equation and solve for the first number, then list all three numbers.


someone please help​

Answers

Answer:

Step-by-step explanation:

I don't do this question the same way as it is done in the classroom, but I will get you the right answer

Let the middle number = x

Let the smallest number = x - 2

Let the largest number = x + 2

x - 2 + x + x + 2 = 315             Combine like terms. The 2s cancel

3x = 315                                  Divide by 3

x = 105

So the middle number is 105

The smallest number is   103

The largest number is     107

Total                                  315

This method cuts out at least one step. It works best with an odd number of terms. If you have an even number, you have to use the more traditional method.

Identify the unit rate in each graph. Then, order the graphs by unit rate, from least to greatest.

Answers

Answer:

God

Step-by-step explanation:

Because I need points

BRAINLIEST IF CORRECT PLEASE HELP

Answers

Answer:

4 3/28

Step-by-step explanation:

Hope this helps!

Answer:

[tex]4 \frac{3}{28}[/tex]

Step-by-step explanation:

First, let's turn these mixed fractions to regular fractions to make multiplying easier:

3 2/7 = 2/7 + 21/7 = 23/7

1 1/4 = 1/4 + 4/4 = 5/4

Then multiply:

[tex]\frac{23}{7}*\frac{5}{4} = \frac{( 23 * 5 ) }{(7*4)} =\frac{115}{28}[/tex]

This fraction cannot be simplified, so let's turn it into a mixed fractions:

[tex]\frac{115}{28} =4\frac{3}{28}[/tex]

help me guys and it will be better if you also write the explaination

Answers

Answer:

Please see below.

Step-by-step explanation:

f^-1 (x) essentially means the reverse.

We can substitute y for x in the equation and solve for y:

x = 4y -1

x+1 = 4y

y = (x+1)/4

so that is our answer for the first one:

f^-1(x) = (x+1)/4

We do the same trick for the second question:

x = 2y +1

x-1 = 2y

y = (x-1)/2

so the answer is f^-1(x) = (x+1)/2

The last question is slightly more complex, we can write is as:

x = 2y/(y-1)

x(y-1) = 2y

yx -x = 2y

yx = 2y + x

yx - 2y = x

y(x-2) = x

y = x/(x-2)

so the answer is x/(x-2)

You can check out my fiverr account for more help; providing detailed explanations to math questions for only $1per question :)

fiverr name: kesja_

can someone answer this ASAP thanks

Answers

750 (0.05) = 37.5

Commision: $37.5

The commision rate turns into 0.05 times the sale price.

the mass of a sphere made of gold is proportional to the diameter, d, cubed. express the mass m of the sphere as a function of the diameter. use c as your proportionality constant.

Answers

Answer:

m         =   cd³

Step-by-step explanation:

mass of        is proportional to          the diam

sphere                                                 cubed

Symbolically, this can be written as:

  m         =   cd³

The diagonal of a rectangle is 5 units long, and one side is 3 units long. How many units long is the perimeter of the rectangle?

Answers

Answer:

16

Step-by-step explanation:

Perimeter is the total length/ distance around the shape so 3+3=6   5+5=10   6+10=16

The points H, I, J and K all lie on the same line segment, in that order, such that the
ratio of HI: IJ: JK is equal to 2:1: 2. If HK = 25, find JK.

Answers

Step-by-step explanation:

Given,

ratio of HI, IJ , Jk = 2 : 1 : 2

let their value be

HI = 2x

IJ = x

JK = 2x

HK = 25

according to question,

HI + IJ + JK = Hk

now, after inserting the values we got,

2x + x + 2x = 25

5x = 25

x = 25/5 = 5

x = 5

therefore value of,

HI = 2x 2×5 = 10

IJ = x 5

JK = 2x 2×5 = 10

Hence, value of JK is 10.

hope this answers helps you dear...take care and may u have a great day ahead!

A diver is at 56 m below sea level. He goes down 17 m and moves up 29 m. Find his final position​

Answers

Step-by-step explanation:

final position = (-56-17+29)m = -44m

44m below the sea level.

Answer:

Here is the answer 44

Step-by-step explanation:

56+17=73

73-29=44

Noah said we cannot use long division to calculate 10 / 3 because there will always be a remainder do or disagree or agree why or why not

Answers

Answer:

disagree, its easy math, 10/3 =3.3 continued

Sketch the graph of the function below, including correct signs, x-intercepts and y-
intercepts.
f(x) = (x + 5)(x + 3)(x - 2)2

Answers

Answer:

if you learned derivative:

f'x=(x+3)(x-2)²+(x+5)(x-2)²+2(x+5)(x+3)(x-2)

  =4x³+12x²-26x-28=0

⇒x=2; =-0.84; =-4.16

⇒fx=0; =72.47; -36.97⇒fx contain (2;0); (-0.84;72.47); (-4.16;-36.97)

if x=0⇒f'x=-28<0⇒from -0.84 to 2, fx Decreasing

Step-by-step explanation:

what slope intercept equation of the following line?

Answers

Well I’m not sure if my answer is correct

Answer: y=2x+7

Step-by-step explanation:

The og equation to get to the equation is y=mx+b. M=slope & B=y intercept

Lets first pick 2 points to find the slope (the formula is y2-y1/x2-x1). After using the formal, I got my slope as 2. Now I could say y=2x+b. Now to find the y intercept, the x point should be 0 because these are on going lines (you could tell by the infinite arrows) meaning there is no starting point. I got my y intercept as 7. Now, I know that y=2x+7.

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