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Ahat [919]
3 years ago
15

PLEASE ANSWER

Mathematics
2 answers:
leonid [27]3 years ago
4 0

Answer:

I don't think this is valid.

liubo4ka [24]3 years ago
3 0
I
EQRli. ore bored. Keri. Ed. Ker. O
Ire. O
Quern Oueqr. Lea. leaf.

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Asanji left the science museum and drove toward the lake at an average speed of 45 km/h. Sometime later Huong left driving in th
Cloud [144]

Answer:

Asanji drove for 5 hours before Huong caught up

Step-by-step explanation:

Let the time for which Asanji drove alone is "X" hours

Asanji and Huong met after three hours of driving of Huong.

Total time for which Asanji drove = X+3 hours

Thus, distance travelled by Asanji in X+3 hours is equal to distance travelled by Huong in 3 hours

45 ( X+3) = 75 (3)\\

On solving the above equation, we get -

45 X + (45 *3) = 75 *3\\45 X = (75-45)*3\\45 X = 30 *3 \\X = \frac{30 *3}{45} \\X = 2

Asanji drove for 3 + 2 = 5 hours before Huong caught up

8 0
3 years ago
Are the lines y = –x – 4 and 5x -5y = 20 perpendicular? Explain.
Zarrin [17]

Answer:

yes

Step-by-step explanation:

If 2 lines are perpendicular then the product of their slopes = - 1

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - x - 4 ← is in slope- intercept form

with slope m = - 1

5x - 5y = 20 ( subtract 5x from both sides )

- 5y = - 5x + 20 ( divide all terms by - 5 )

y = x - 4 ← in slope- intercept form

with slope m = 1

Thus product of their slopes is - 1 × 1 = - 1

Therefore the lines are perpendicular

7 0
3 years ago
What is the answer to this equation - 2w+21=-8w+36
stiv31 [10]

is it -2 ?

......

.....

....

7 0
4 years ago
You pick a card from a standard deck, look at it, then pick a second card. Since a standard deck of 52 cards has 13 hearts and 1
Snezhnost [94]

Answer: it’s answer c

Step-by-step explanation:

4 0
3 years ago
Please answer these 2 questions
podryga [215]

Question 5: /  Pregunta 5:

<u>b. x² + 3</u>

f(x) = \sqrt{x-3}

\/

y = \sqrt{x-3}

\/

x = \sqrt{y-3}

\/

x² = \sqrt{y-3}^{2}

\/

x² = y - 3

\/

x² + 3 = y

\/

x² + 3 = f(x)

Question 6: /  Pregunta 6:

<u>b. Yes, but not one to one</u>

        Two inputs have an output of 8 so it is not one to one, but no input has two different outputs so it is a function / Dos entradas tienen una salida de 8, por lo que no es una a una, pero ninguna entrada tiene dos salidas diferentes, por lo que es una función.

8 0
3 years ago
Read 2 more answers
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