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Ulleksa [173]
3 years ago
11

I need help I needa pass this test all 9 questions

Mathematics
1 answer:
Firlakuza [10]3 years ago
6 0

Answer: The answer is b

Step-by-step explanation: Check the image! It matches. Hope this helps!

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Solve the following quadratic function by using the quadratic formula: x^2 +<br> 2x - 1 = 2 *
elena55 [62]

Answer:

x = 1 or x = -3

Step-by-step explanation:

ax^{2} + bx + c = 0

x = \frac{-b±\sqrt{b^{2}-4ac } }{2a\\}

as x^{2} + 2x - 1 = 2 ⇔  x^{2} + 2x - 3 = 0, its solution is

x = \frac{-2±\sqrt{2^{2}-4 *1*(-3)} }{2*1}

=  \frac{-2±\sqrt{4+12} }{2} =  \frac{-2±\sqrt{16} }{2} =  \frac{-2±\ 4 }{2}

therefore, x = 1 or x = -3

hope this helps! :D

have a miraculous day, and brainliest is immensely appreciated!! <3

4 0
3 years ago
A pair of dice was rolled many times
gayaneshka [121]

Answer:

Step-by-step explanation:

Total outcome is

3 + 6 + 8 + 11 + 14 + 16 + 15 + 12 + 9 + 5 + 1 = 100

Favorable outcome is

3 + 6 + 11 + 16 + 5 = 41

The percent probability is

41 / 100 = 41 %

7 0
3 years ago
Will Give Brainliest if Correct
Olenka [21]

Step-by-step explanation:

a. h(0) = 1 - 4* 0 - 0² = 1-0 = 1

b. h(-4) = 1 - 4 * (-4) - (-4)² = 1 + 16 -16 = 1

c. h(10) = 1 - 4 * 10 - (10)² = 1 - 40 - 100 = -139

d. h (3/2) = 1 - 4 * 3/2 - (3/2)²

= 1 -6 - 9/4

= ( 4 - 24 - 9 ) / 4

= - 29/ 4

Hope it helps :)

6 0
3 years ago
Calculate the acceleration of a moving object, given that the object is 500 g and has a a force of 6.5 n
ratelena [41]

Hello!

\large\boxed{a = 13m/s^{2}}

Use the equation F = m · a to solve where:

F = total force (N)

m = mass (kg)

a = acceleration (m/s²)

We are given the force and mass, so we can plug these values into the equation to solve.

However, mass is used in kilograms, so we must convert from grams to kilograms:

1 kg = 1000 grams

Convert using dimensional analysis or proportions:

500 g* \frac{1 kg}{1000g}  = 0.5kg

Plug in the force and mass to solve:

6.5 = 0.5(a)

Divide both sides by 0.5 (Multiply by 2)

a = 13 m/s²

7 0
3 years ago
Read 2 more answers
This graph represents the average number of animals that are seen in a veterinarian's office during the day.
Schach [20]

Answer:

You didn't put in a graph

Step-by-step explanation:

8 0
3 years ago
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