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2 years ago

What is a solution?What was the solution to this equation?how many solutions did the equation have?

Mathematics

1 answer:

Korolek [52]2 years ago

3 0

We have

$3x+7=11x+15$

We subtract 11x on both sides and 7 on both sides

$3x-11x+7-7=11x-11x+15-7$

we sum like terms

$\begin{gathered} 3x-11x=15-7 \\ -8x=8 \\ \end{gathered}$

Then we isolate the x

$x=-\frac{8}{8}=-1$

ANSWER

x=-1

The equation only have one solution

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Where v is the final velocity (in m/s), u is the initial velocity (in m/s), a is the acceleration (in m/s²) and s is the distanc

drek231 [11]

Answer:

C. 178−−−√ m

Step-by-step explanation:

Given the following :

v = final velocity (in m/s)

u = initial velocity (in m/s)

a = acceleration (in m/s²)

s = distance (in meters).

Find v when u is 8 m/s, a is 3 m/s², and s is 19 meters

Using the 3rd equation of motion :

v^2 = u^2 + 2as

v^2 = 8^2 + 2(3)(19)

v^2 = 64 + 114

v^2 = 178

Take the square root of both sides :

√v^2 = √178

v = √178

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3 years ago

Lainey bought a set of 20 makers for $6 what is the cost of 1 marker? <br>

loris [4]

Answer:

0.30

Step-by-step explanation:

$6 Total

20 markers

6/20=0.30

0.3 per maker.

Cost of 1 marker is $0.30

6 0

3 years ago

H E L P :) . . . . . ........

Molodets [167]

-3 is one answer and -5 is another answer

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4 years ago

A box contains 2 dozen pairs of contact lenses ,of which 8 pairs are tinted. A pair of contact lenses is drawn at random from th

tia_tia [17]

Answer:

$\dfrac{2}{3}.$

Step-by-step explanation:

It is given that a box contains 2 dozen pairs of contact lenses ,of which 8 pairs are tinted.

1 dozen = 12 units

Total pairs of contact lenses $=2\times 12 = 24$

Tinted pairs of contact lenses = 8

Pairs of contact lenses not tinted = 24 - 8 = 16

If a pair of contact lenses is drawn at random from the box, then we need to find the probability that it is not tinted.

$P(\text{Not tinted})=\dfrac{\text{Pairs of contact lenses not tinted}}{\text{Total pairs of contact lenses}}$

$P(\text{Not tinted})=\dfrac{16}{24}$

$P(\text{Not tinted})=\dfrac{2}{3}$

Therefore, the required probability is $\dfrac{2}{3}.$

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3 years ago

Help, write equation for graph

Crazy boy [7]

Answer:

f(x)=(x-1)^2 -4

Step-by-step explanation:

use vertex form

4 0

4 years ago