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3 years ago

Find the equation of the line

Mathematics

1 answer:

uysha [10]3 years ago

6 0

Answer:

y=x+5

Step-by-step explanation:

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A store is having a sale. You can buy 14 cards for $6. What is the cost of 35 cards during this sale?

skad [1K]

Answer:

15$

Step-by-step explanation:

14=$6

35=6*35/14

5 0

3 years ago

Only using 1 2 3 4, find a solution that equals 18, 19, 20, and 21

adoni [48]

Answer:

See below, there may be more than one answer

Step-by-step explanation:

4(3+1)+2 = 18

(4+2)(3)+1 = 19

(1)(2+3)(4) = 20

(1+2)(3+4) = 21

6 0

2 years ago

What is the factored form of x^2-x-2

tekilochka [14]

For this case we have:

By definition, the factorization is an algebraic expression that is used to find two or more factors, taking into account that the product of these factors must be equal to the given expression.

That is to say:

Given an expression of the form $x ^ 2 + (a + b) x + ab$

We can factor in the following way:

$(x + a) (x + b)$

Since, its product is: $x ^ 2 + bx + ax + ab = x ^ 2 + (a + b) x + ab$ ,

checking the given definition.

If we have:

$x ^ 2-x-2$

We can factor:

$(x-2) (x + 1)$

When making your product we obtain: $x ^ 2 + x-2x-2 = x ^ 2-x-2$

Answer:

$(x-2) (x + 1)$

6 0

3 years ago

When Gabby went food shopping, she spent $14.90 on 5 bags of marshmallows to make Rice Krispie treats. She has to go to the stor

dusya [7]

the answer is $20.70

3 0

3 years ago

If a tank holds 4500 gallons of water, which drains from the bottom of the tank in 50 minutes, then Toricelli's Law gives the vo

disa [49]

Answer:

The response to this question can be defined as follows:

Step-by-step explanation:

$v =4500 (1-\frac{t}{50})^2\\\\\to \frac{dV}{dt}= 9000 (1- \frac{t}{50})(\frac{1}{50})\\\\$

$= 180 (\frac{50-t}{50})\\\\= 3.6(50-t)\\\\$

For point a:

$t=5\\\\V'=3.6\times 45 = 162\\\\ans= - 162\ \frac{gal}{min}\\\\$

For point b:

$t=10\\\\V'=3.6\times 40 = 144\\\\ans= - 144 \ \frac{gal}{min}\\\\$

For point c:

$t=20\\\\V'=3.6\times 30 = 108\\\\ans= - 108 \ \frac{gal}{min}\\\\$

For point d:

$t=50\\\\V'=3.6\times 0 = 0\\\\ans= 0 \ \frac{gal}{min}\\\\$

4 0

2 years ago