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3 years ago

A2-12a+32÷a-4 pls guys ans fast

Mathematics

1 answer:

Serga [27]3 years ago

7 0

Answer:

answer

$\frac{ - 12a {}^{2} - 2a + 32 }{a}$

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Rosa spent $11.52 on 8 candy necklaces for each of her two friends. How much did each necklace cost?

Vaselesa [24]

Answer:

$1.44

Explanation: divide the numbers

5 0

3 years ago

Read 2 more answers

Find MP.<br><br> MN=17<br> NP=3y<br> MP=5y+9

8_murik_8 [283]

Answer:

$MP = 29$

Step-by-step explanation:

Given:

$MN = 17$

$NP = 3y$

$MP = 5y + 9$

$MN + NP = MP$ (segment addition postulate)

$17 + 3y = 5y + 9$ (substitution)

$3y = 5y + 9 - 17$ (subtracting 17 from each side)

$3y = 5y + 8$

$3y - 5y = 5y - 8 - 5y$ (Subtracting 5y from both sides)

$-2y = 5y - 8 - 5y$

$-2y = - 8$

$y = 4$ (dividing both sides by -2)

$MP = 5y + 9$

Plug in the value of y

$MP = 5(4) + 9 = 20 + 9$

$MP = 29$

4 0

3 years ago

An automobile travels past the farmhouse at a speed of v = 45 km/h. How fast is the distance between the automobile and the farm

yulyashka [42]

Answer:

$\frac{ds}{dt} = 39.586 km/h$

Step-by-step explanation:

let distance between farmhouse and road is 2 km

From diagram given

p is the distance between road and past the intersection of highway

By using Pythagoras theorem

$s^2 = 2^2 +p^2$

differentiate wrt t

we get

$\frac{d}{dt} s^2 = \frac{d}{dt} (4 + p^2)$

$2s \frac{ds}{dt} =2p \frac{dp}{dt}$

$\frac{ds}{dt} = \frac{p}{s}\frac{dp}{dt}$

$\frac{ds}{dt} = \frac{p}{\sqrt{p^2 +4}} \frac{dp}{dt}$

putting p = 3.7 km

$\frac{ds}{dt} = \frac{3.7}{\sqrt{3.7^2 +4}} 45$

$\frac{ds}{dt} = 39.586 km/h$

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3 years ago

A) what slope does this line have?

inn [45]

Answer:

The slope is a positive linear slope

The slope is 2

The y-intercept is -4

The equation of this line would be: y = 2x - 4

Step-by-step explanation:

y = mx + b format

m = slope

b = y-intercept

and x and y are the x and y components

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3 years ago

Please I need help fast!!!!!???

Temka [501]

Answer:

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Step-by-step explanation:

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2 years ago

A2-12a+32÷a-4 pls guys ans fast​

A2-12a+32÷a-4 pls guys ans fast