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2 years ago

Do number 7 pleaseeee

Mathematics

2 answers:

Sergeeva-Olga [200]2 years ago

7 0

<em>If it is one platter per person, the following will be true,</em>

Answer:

c = 7p

Step-by-step explanation:

This is because every time someone buys a platter, it adds $7 to the total cost

-> If two people buy a platter, it is 7 + 7, aka 7 *2

-> If three, it is 7 + 7 + 7 aka 7 * 3

Using this pattern, we can see that the total cost will be 7 times the number of people there.

We can put this into an equation by doing:

c = 7p

blagie [28]2 years ago

5 0

<h3>Answer: c = 7p</h3>

Explanation:

Let's say 5 people get a lunch platter. The cost would be 7*5 = 35 dollars.

Or if 3 people got the lunch platter, then it would be 7*3 = 21 dollars

In general, the cost is 7p dollars where p is a placeholder for a whole number. So that's how we end up with c = 7p

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3 years ago

Solve for x -<br><br><img src="https://tex.z-dn.net/?f=%20x%5E%7B2%7D%20%2B%205x%20%2B%206%20%3D%200%20%5C%5C%20%5C%5C%20" id="T

Volgvan

Hello,

x² + 5x + 6 = 0

a = 1 ; b = 5 ; c = 6

∆ = b² - 4ac = 5² - 4 × 1 × 6 = 25 - 24 = 1 > 0

2 solutions :

$x_{1} = \frac{ - b - \sqrt{\Delta} }{2a} = \frac{ - 5 - 1}{2 \times 1} = \frac{ - 6}{2} = - 3$

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S = { -3 ; -2}

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2 years ago

Graph the function.

disa [49]

Answer:

Line passing through $(0,2),(1,-21)$ .

Step-by-step explanation:

$y=-23x+2\\at\ y\ axis\ x=0\\y=-23\times0+2\\y=2$

hence this line passes through $(0,2)$ .

When $x=1$

$y=-23\times1+2\\y=-21$

Hence this line passes through $(1,-21)$ .

Graph is attached.

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4 years ago

HELP ASAP//BRAINLEST+THANKS: Subj:gravity formula stuff

Y_Kistochka [10]

Answer:

6.46

Step-by-step explanation:

h(t) = (1/2) $att^{2}$ + v0t + h0

Origin is at surface of water (h = 0), up is positive.

a = -g = -9.8 m/ $s^{2}$

v0 = 25 m/s

h0 = 50 m

h(t) = -4.9t2 + 25t + 50

Find t when

7 = $-4.9t^{2}$ + 25t + 50

$4.9t^{2}$ - 25t - 43 = 0

t = [1/(2*4.9)] [25 ±√( $25^{2}$ + 4*4.9*43)]

t = (0.102)(25 ± 38.312)

t > 0 ⇒ use only the positive square root

t = (0.102)(25 + 38.312) ≅ 6.46 s

It is 7m above the water at about 6.46 s

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3 years ago