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4 years ago

50pts help! consider this quadratic equation. 2x^2-1=3x+4 Which equation correctly applies to the quadratic formula?

Mathematics

2 answers:

eduard4 years ago

7 0

Step-by-step explanation:

im not going to go in to detail but the answer is c

DaniilM [7]4 years ago

4 0

Answer:

Step-by-step explanation:

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The diagram below shows some measurements taken from a new bridge. How long is the bridge?

neonofarm [45]

Answer:

1,737.3 feet

Step-by-step explanation:

Let's assume the length of the bridge consists of 2 right triangles as shown in the diagram. Use pythagorean theorem to find the other missing leg of each right triangle.

Let the missing leg for each triangle be x and y respectively.

Length of bridge = x + y

✔️x = √(1115² - 860²) = √503,625

x ≈ 709.7 (nearest tenth)

✔️y = √(1340² - 860²)

y ≈ 1,027.6 (nearest tenth)

✔️ Length of bridge = 709.7 + 1,027.6 = 1,737.3 ft

6 0

3 years ago

If 1550 students voted but there were only 2000 eligible voters what percent of students voted

AURORKA [14]

To get that percentage you just need to divide 1550 by 200p:
1550/2000 = 0.775
Which means that only 77.5% of the students voted

I hope you understood my brief explanation. And please consider marking this awnser as Branliest. Thank you ! :)

6 0

3 years ago

Write an exponential function in the form y<br> and (3,72).<br> ab" that goes through points (0,9)

Vikentia [17]

Answer:

$y=9 ( {2}^{x} )$

Step-by-step explanation:

Let the exponential function be

$y = a {b}^{x}$

We substitute (0,9) to get:

$9 = a {b}^{0}$

$9 = a(1)$

$a = 9$

The equation now becomes:

$y = 9 {b}^{x}$

We substitute (3,72) to get:

$72 =9 {b}^{3}$

$8={b}^{3} \\ {2}^{3} = {b}^{3}$

$b = 2$

The equation is therefore

$y=9 ( {2}^{x} )$

3 0

4 years ago

In how much time will ₹1200 amount to ₹1680 at 16% per annum simple interest.

SVETLANKA909090 [29]

Answer:

formula- p*r*t/100

si = a-p

1680-1200

that is 480 rupees.

now when si is given,

si*100/1200*16

= 480*100/1200*16

= 48000/19200

= 2.5 yrs

4 0

3 years ago

Leah bought two pounds of strawberries for $9.60. What is the price, in dollars per ounce of strawberries?

laiz [17]

Answer:

i dunno man like 20x2853-3835734= close to 1 ish maybe

Step-by-step explanation:

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gIB BRAIN SMARTER

4 0

3 years ago