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2 years ago

X square - 5 x - 24 = 0 Answer pls

Mathematics

1 answer:

Goryan [66]2 years ago

3 0

Answer:

x = -3 and x = 8

Step-by-step explanation:

x^2 - 5x - 24 = 0

First you factor the equation:

(x - 8)(x + 3) = 0

Then set each factor equal to zero.

x - 8 = 0

x = 8

and

x + 3 = 0

x = -3

So you have two possible answers for x -- -3 and 8

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What's 8n-(2n-3)=12?

Alborosie

8n- (2n-3) =12
8n-2n= 12+3
6n=15
n= 2.5

Hope this helps :)

6 0

3 years ago

What is the slope of the line passing through the points (2, −5) and (4, 1)? 2 −4/5 5/4 3

satela [25.4K]

Just use y2-y2/x2-x1

so

1+5 (because subtracting a negative is the same as adding a positive)

4-2

6/2

or 3/1 which is the same as 3

3 0

3 years ago

The expression 2.5 + 2t gives the cost, in dollars, of t tulips at a flower store. Joanna has $14.00.

Elena-2011 [213]

Answer:

5 tulips.

Step-by-step explanation:

Given:

The expression for the cost of the tulips is $Cost=2.5+2t$

Where, $t$ is the number of tulips.

Now, Joanna has $\$ 14.00$ .

So, number of tulips that can be bought with the above amount can be obtained by substituting $\$ 14.00$ for cost. This gives,

$Cost=2.5+2t\\14=2.5+2t\\2t=14-2.5\\2t=11.5\\t=\frac{11.5}{2}=5.75 \approx 5$ .

As the number of tulips cannot be in decimals or fractions, so the maximum number of tulips that can be bought will be 5.

6 0

3 years ago

With her promotion, Nicki's salary increased from $19.50 an hour to $22.50 an hour. What is the percent of increase, rounded to

olga nikolaevna [1]

The equation for percentage increase is
{(New value - old value) / old value} x100%
Therefore it should be
{(22.5 - 19.5) / 19.5} x 100%
=15% (rounded to nearest whole number)
Answer is B

5 0

3 years ago

Read 2 more answers

I don’t understand. Need help asap

BlackZzzverrR [31]

Answer:

can you take a better picture please

it's a bit blurry

7 0

3 years ago

Read 2 more answers

X square - 5 x - 24 = 0 Answer pls​

X square - 5 x - 24 = 0 Answer pls