All categories

3 years ago

Which linear equation is represented by the table?

Mathematics

1 answer:

pentagon [3]3 years ago

6 0

Answer:

On E. the first answer is = -2.5x-15 and the solution is (-6,0)

Step-by-step explanation:

I just guessed this on E. and got it right.

You might be interested in

Selena and Drake are evaluating the expression (StartFraction r s Superscript negative 2 Baseline Over r squared s Superscript n

NARA [144]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

What decimal is equivalent to 9\10

ch4aika [34]

.9 is equivalent to 9/10.
This is because 9 divided by 10 is .9.(Reciprocal)

4 0

3 years ago

What is the value of x?

lina2011 [118]

Answer : The value of x is 5.

Step-by-step explanation :

According to the angle bisector theorem, an angle bisector of a triangle will divide the opposite side into two segments that are proportional to the other two sides of the triangle.

That means,

$\frac{AB}{BD}=\frac{AC}{CD}$

$\frac{9}{2x-1}=\frac{15}{3x}$

By the cross multiplication, we get:

$9\times 3x=(2x-1)\times 15$

$27x=30x-15$

$30x-27x=15$

$3x=15$

$x=\frac{15}{3}$

$x=5$

Therefore, the value of x is 5.

5 0

3 years ago

You work in the state of Nebraska where the sales tax is 5 1 2 %. What would be the tax rate expressed as a decimal?

Igoryamba

512% as a decimal would be 5.12

7 0

3 years ago

Extended Problems, Extraneous Solutions

diamong [38]

Answer:

1a. 2 is the solution

1b. -3 is because square root of 1 doesn't equal -1.

1c.-3

Step-by-step explanation:

$(x + 2 = \sqrt{3x + 10}$

Square both sides

$(x + 2) {}^{2} = 3x + 10$

Remeber perfect square Rule

$(x + y) {}^{2} = {x}^{2} + 2xy + {y}^{2}$

So now we got

$x {}^{2} + 4x + 4 = 3x + 10$

${x}^{2} + x + 4 = 10$

${x}^{2} + x - 6 = 0$

Factor into binomial.

$(x + 3)(x - 2) = 0$

So our solution is 3 or 2. However, let's check our work.

$- 3 + 2 = \sqrt{3( - 3) + 10}$

$- 1 = \sqrt{1}$

However square root of 1 is 1. It could be 1 but in Math, We only take the principal square root which is positive always. So -3 isn't a solution.

So let try 2.

 $2 + 2 = \sqrt{3(2) + 10} = 4 = \sqrt{16} = 4 = 4$ 

So this is indeed the solution.

Make up equation for 2 and 3. Ask me if you need help.

5 0

2 years ago