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3 years ago

What is the value of p in the linear equation ? −4 −2 2 4

Mathematics

2 answers:

Snezhnost [94]3 years ago

7 0

Answer:

p = -2

Step-by-step explanation:

O we have to solve this equation:

24p + 12 - 18p = 10 + 2p - 6

First, we will operate what we have in both sides:

24p - 18p + 12 = 10 - 6 + 2p

6p + 12 = 4 + 2p

We substract 2p in both sides and 12 too.

6p + 12 - 2p - 12 = 4 + 2p - 2p - 12

4p = -8

Now, we divide both sides by 4

4p/4 = -8/4

Alex17521 [72]3 years ago

4 0

Answer:

-2

Step-by-step explanation:

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A tree cast a shadow of 30m long and a 2m stick casts one that is 3m long. As show in the below diagram how tall is the tree?

PSYCHO15rus [73]

Answer:

20 m

Step-by-step explanation:

We have similar triangles here.

BC║DE, AB║AD and AC║AE ⇒ ΔADE ~ ΔABC

The ratio of corresponding sides of similar triangles is same:

BC/DE = AC/AE
BC / 2 = 30/3
BC / 2 = 10
BC = 2*10
BC = 20 m

6 0

3 years ago

Read 2 more answers

How to do this question plz answer my question step by step plzz plz plz plz

never [62]

Answer:

40°, 95°, 105°, and 160°

Step-by-step explanation:

Let the smallest angle be x.

Measures of the 3 angles can be expressed as:

$x + 55$

$x + 65$

$x + 120$

The sum of all angles in a quadrilateral = 360°.

Therefore, $(x + 55) + (x + 65) + (x + 120) = 360$

Solve for x

$x + 55 + x + 65 + x + 120 = 360$

$3x + 240 = 360$

$3x + 240 - 240 = 360 - 240$

$3x = 120$

$\frac{3x}{3} = \frac{120}{3}$

$x = 40$

The smallest angle = 40°

Plug in the value of x in the earlier stated expressions to find the measure of the other angles:

$x + 55 = 40 + 55 = 95$

$x + 65 = 40 + 65 = 105$

$x + 120 = 40 + 120 = 160$

3 0

3 years ago

What is the directrix of the parabola with the following equation? (y - 1)2 = -4(x - 1)

Softa [21]

Answer:

x = 2

Step-by-step explanation:

6 0

3 years ago

What is the interquartile range of the data? 120, 140, 150, 195, 203, 226, 245, 280 235.5

zheka24 [161]

For the first one it's 90.5, I know cause I just took the test and it's right. The second one I'm not sure..

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3 years ago

Written equation for y=-2=1 (0,3)

Alika [10]

Is that supposed to be y=-2x+1?
i cannot solve without the proper equation lol

4 0

3 years ago