All categories

3 years ago

What is -6k + 7k? Pleasee answer

Mathematics

2 answers:

Elden [556K]3 years ago

8 0

K is the answer hope it helped

babunello [35]3 years ago

6 0

-6k+7k= +1k= k. k is the answer.

You might be interested in

Find the value of x A) 22.5 B) 18.5 C) 18 D) 12

cluponka [151]

Answer:

A) 22.5

Step-by-step explanation:

The product of the length of one secant segment and its external part is equal to the product of the length of the other secant segment and its external part.

(5+13)*5 = x*4

18*5 = 4x

90 = 4x

Divide each side by 4

90/4 =4x/4

22.5 =x

7 0

4 years ago

Which numbers between 10 and 99 have digits that differ by 4 and add to 6

madreJ [45]

Answer:

Step-by-step explanation:

Correct option is A)

Let a 3-digit number ABC

Case (1)

If A=7, then B and C can be any digit but not 7

so, total 9 digits (0,1,2,3,4,5,6,8,9) can replace B and C

Then total such combinations =1(9)(9)=81

Case (2)

If B=7 then A can be any digit but not 0 and 7, because if A=0 it will be a 2-digit number.

And C can be any digit but not 7

Then total combinations =(8)(1)(9)=72

Case (3)

If C=7 then A can be any digit but not 0 and 7, because if A=0 it will be a 2-digit number.

And B can be any digit but not 7

Then total combinations =(8)(9)(1)=72

So, total numbers between 99 and 1000 which have exactly one of their digits as 7 are =81+72+72=225

8 0

3 years ago

Given the graph of a circle and a line, how many solutions to the system of equations exist?

Oxana [17]

Answer:

First Option

Step-by-step explanation:

The number of solutions is given by the values in which the equation of the circumference is equal to the equation of the line.

In other passwords the number of solutions is equal to the number of times the line intersects or touches the circumference.

Notice in the graph that the line does not touch the circumference.

Therefore for this case there are no solution

8 0

3 years ago

Read 2 more answers

I need help or the answer

loris [4]

Answer:

5x+4y = 52

Step-by-step explanation:

We can first write the equation in point slope form

y-y1 = m(x-x1) where m is the slope and (x1,y1) is the point

y - 8 = -5/4 ( x-4)

Multiply each side by 4 to get rid of the fraction

4(y - 8) = 4*(-5/4) ( x-4)

4(y - 8) = -5 ( x-4)

Distribute

4y - 32 = -5x+20

We want the equation in the form

Ax + By = C

Add 5x to each side

5x+4y -32 = -5x+5x+20

Add 32 to each side

5x+4y -32+32 =32+20

5x+4y = 52

4 0

3 years ago

Which side lengths form a right triangle? Choose all answers that apply:

Tom [10]

Answer:

Option C, 30 40 50

Step-by-step explanation:

In order for 3 sides to form a right triangle, there are two options:

1.) Both sides are equal, and the hypotenuse is sqrt(2) * the length of the sides.

2.) One side is (sqrt(3)) / 2 * h and the other side is 1/2 * h and the hypotenuse is just h.

Step 1: Determine if A is correct

No, Option 1 is automatically thrown away because no sides are equal.

No, Option 2 isn't possible because if you put the sides in any arrangement it won't work.

Step 2: Determine if B is correct

No, Option 1 is once again thrown away because no sides are equal.

No, Option 2 is not possible once again because in whatever arrangement you put the sides in, it won't work.

Step 2: Determine if C is correct

No, Option 1 is once again thrown out because no sides are in equal length.

No, Option 2 is neither possible since you can't organize it in a way to fit the pattern.

However, there is an exception called the 3-4-5 triangle which forms a right triangle. In this example, we have a 30-40-50 triangle that forms into a right triangle.

Answer: Option C, 30 40 50

4 0

3 years ago