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4 years ago

Find the distance between the points ( -19,14) and (-19,6).

Mathematics

2 answers:

Mice21 [21]4 years ago

8 0

Step-by-step explanation:

(-19^2 - - 19^2) + (14^2 - 6^2) = 160

root of 160 = 12.65 (2dp)

ElenaW [278]4 years ago

4 0

Check the picture below.

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What is the value of x????

inysia [295]

If QR is a median, then:

$\dfrac{NO+MP}{2}=QR$

We have NO = 30, MP = 9x - 42 and QR = x + 15. Substitute:

$\dfrac{30+9x-42}{2}=x+15\qquad\text{multiply both sides by 2}\\\\9x-12=2x+30\qquad\text{add 12 to both sides}\\\\9x=2x+42\qquad\text{subtract 2x from both sides}\\\\7x=42\qquad\text{divide both sides by 7}\\\\\boxed{x=6}$

<h3>Answer: A. 6</h3>

3 0

3 years ago

3x + y = 3

Westkost [7]

If you would like to solve the system of equations, you can do this using the following steps:

3x + y = 3
x + y = 2 ... y = 2 - x
_________________
3x + y = 3
3x + 2 - x = 3
2x = 3 - 2
2x = 1
x = 1/2

y = 2 - x = 2 - 1/2 = 1 1/2 = 3/2

(x, y) = (1/2, 1 1/2) = (1/2, 3/2)

The correct result would be C) x = 1/2, y = 3/2.

5 0

3 years ago

If a book cost $5 and the sales tax rate is 6.5%, how much would the book cost?

marin [14]

Answer:

$5.33

Step-by-step explanation:

6 0

3 years ago

I need the tsa of a triangular prism

Annette [7]

Answer:

HIStep-by-step explanation:

3 0

3 years ago

9/10

SIZIF [17.4K]

Answer: 90%

Step-by-step explanation: To write a fraction as a percent, first remember that a percent is a ratio of a number to 100.

So to write 9/10 as a percent, we need to find a fraction

equivalent to 9/10 that has a 100 in the denominator.

We can do this by setting up a proportion.

So we have $\frac{9}{10} = \frac{n}{100}$ .

Now, we can use cross-products to find the missing value.

So we have (9)(100) which is 900 is equal to (10)(n) or 10n.

So we have 900 = 10n.

Next, dividing both sides of the equation by 10, we have 90 = n.

So, 9/10 is equal to 90/100 or 90%.

7 0

4 years ago