3 years ago

7 more than d is equal to 19

Mathematics

2 answers:

Umnica [9.8K]3 years ago

7 0

The translated sentence means

7+d=19. If you want to solve it, subtract 7 from both sides.

now, it becomes d=19-7

d=12

galben [10]3 years ago

4 0

7+d=19 is the answer

subtract 7 from each side d=19-7

d=12

You might be interested in

What’s the answer????????????

Oksana_A [137]

Answer:33

Step-by-step explanation:

trust

8 0

3 years ago

Slope:1/4, y-intercept:3

serg [7]

Option D is the correct answer

3 0

3 years ago

Find all values of $x$ such that $\dfrac{x}{x+4} = -\dfrac{9}{x+3}$. If you find more than one value, then list your solutions i

mixer [17]

We start with

$\dfrac{x}{x+4} = -\dfrac{9}{x+3}$

Assuming that $x \notin \{-4,\ -3\}$ we can cross multiply the equation:

$x(x+3) = -9(x+4) \iff x^2+3x=-9x-36 \iff x^2+12x+36=0$

You can recognize the perfect square pattern in the quadratic equation:

$x^2+12x+36 = (x)^2 + 2\cdot x \cdot 6 + (6)^2 = (x+6)^2$

So, we have

$x^2+12x+36=0 \iff (x+6)^2 = 0 \iff x+6=0 \iff x=-6$

Which is the only solution, with multiplicity 2.

8 0

4 years ago

Read 2 more answers

For a polynomial p(x), the value of p(3) is −2. Which of the following must be true about p(x)?

mr Goodwill [35]

Answer:

Step-by-step explanation:

The factor theorem states if (x - h) is a factor of a polynomial p(x) then

p(h) = 0

However, p(h) ≠ 0 then the value obtained is the remainder.

Thus

p(3) = - 2

When p(x) is divided by (x - 3) then the remainder is - 2

8 0

3 years ago

Which number is irrational?

Alex_Xolod [135]

Answer:

D. $\frac{\sqrt{20}}{5}$

6 0

3 years ago

Read 2 more answers