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3 years ago

5x^2 + 9x = -4 What is the “c” value for the following quadratic equation.

Mathematics

1 answer:

ohaa [14]3 years ago

6 0

Answer:

c=4

Step-by-step explanation:

5x^2 + 9x = -4

We need to write this in the form

ax^2 +bx+c = 0

So add 4 to each side

5x^2 + 9x+4 = -4+4

5x^2 + 9x+4 = 0

a =5 b=9 and c =4

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2/7 divided by 1/2 as a mixed number

Readme [11.4K]

Answer:

4/7

Step-by-step explanation:

2/7 ÷1/2=2/7 × 2 = 4/7

Hope this helps :D

8 0

3 years ago

The cost of a bagel and a cup of coffee is $2.35. The cost of 2 bagels and a cup of coffee is $4.20. What is the cost of one cup

Gnesinka [82]

Hey!

--------------------------------------------

Solution and Answer:

4.20 - 2.35 - $1.85 per bagel.

1.85 x 2 = $3.70 for 2 bagels.

4.20 - 3.70 = $0.50 per coffee.

--------------------------------------------

Hope This Helped ;)

7 0

3 years ago

Ms. Lady works-out with Ms. Beetle; her average crawling time has increased to 4 feet per minute, while Ms. Beetle, who is used

ira [324]

Answer:

Senn needs to give Ms. Lady 4.6 minutes head start

Senn needs to give Ms. Beetle 18.4 minutes head start

The equation for each bug are;

For Senn, the equation for the experiment is 5 × t₁ = 92 feet

For Ms. Lady, the equation for the experiment is 4 × (t₁ + 4.6) = 92 feet

For Ms. Beetle , the equation for the experiment is 4 × (t₁ + 18.4) = 92 feet

Please find attached the required graph and table of values

Step-by-step explanation:

The given parameters are;

The average crawling time of Ms. Lady = 4 feet per minute

The average crawling time of Ms. Beetle = 2.5 feet per minute

The average crawling time of Senn = 5 feet per minute

The distance to the rose bush = 92 feet

Therefore, we have;

The time, t, duration for Senn to arrive at the Rose bush is given by the following relation,

Time, t = Distance, d/(Speed, s)

Given that the speed of the bugs is equal to their average crawling time, we have

For Senn

Time, t = 92/(5 ft/Min) = 18.4 minutes

For, Ms. Lady

Time, t = 92/(4 ft/Min) = 23 minutes

For, Ms. Beetle

t = 92/(2.5 ft/Min) = 36.8 minutes

Therefore;

Senn needs to give Ms. Lady 23 - 18.4 = 4.6 minutes head start

Similarly, Senn needs to give Ms. Beetle 36.8 - 18.4 = 18.4 minutes head start

The equation for each bug are therefore;

For Senn, the equation for the experiment is given as follows ;

5 × t₁ = 92 feet

For Ms. Lady, the equation for the experiment is given as follows;

4 × (t₁ + 4.6) = 92 feet

For Ms. Beetle , the equation for the experiment is given as follows;

4 × (t₁ + 18.4) = 92 feet.

7 0

3 years ago

The table below shows all of the possible outcomes for rolling two six-sided number cubes. A table with 36 possible outcomes. Th

barxatty [35]

The image is missing, we have attached the image.

Answer:

The of getting an even number in first and an odd number second is $\frac{1}{4}\ or\ 0.25$ .

Step-by-step explanation:

Given,

Total number of outcomes = 36

We have to find the probability of rolling an even number first and an odd number second.

Solution,

Firstly we will find out the possible outcomes;

$(2,1),\ (2,3),\ (2,5),\ (4,1),\ (4,3),\ (4,5),\ (6,1),\ (6,3),\ (6,5),$

So the total number of outcomes = 9

Now according to the formula of probability, which is;

$P(E)=\frac{\textrm{total number of possible outcomes}}{\textrm{total number of outcomes}}$

Now on putting the values, we get;

P(of getting an even number in first and an odd number second)= $\frac{9}{36}=\frac{1}{4}=0.25$

Hence The of getting an even number in first and an odd number second is $\frac{1}{4}\ or\ 0.25$ .

5 0

3 years ago

Read 2 more answers

What is the approximate value of this logarithmic expression?

mestny [16]

Answer:

$log_8{24} = 1.53$

Step-by-step explanation:

Given

$log_8{24}$

Required

Solve:

Apply the following law of logarithm:

$log_a{b} = \frac{log\ b}{log\ a}$

So, we have:

$log_8{24} = \frac{log\ 24}{log\ 8}$

Using calculator, we have:

$log_8{24} = \frac{1.38021124171}{0.90308998699}$

$log_8{24} = 1.52832083358$

Approximate

$log_8{24} = 1.53$

8 0

3 years ago

Read 2 more answers