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Answer:

Two real roots

Step-by-step explanation:

The portion of the quadratic formula that determines the number of roots is

b² - 4ac

If it's positve there are two real roots

If it's zero there is one real root

If it's negative there are no real roots

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

b² - 4ac = 7² - 4(3)(-8)

b² - 4ac =  49 + 96

b² - 4ac =  145

Two real roots since 145 is positive

The quadratic equation has two real zeroes

What is quadratic equations?

The polynomial equations of degree two in one variable of type f(x) = ax2 + bx + c = 0 and with a, b, c, and R R and a 0 are known as quadratic equations. It is a quadratic equation in its general form, where "a" stands for the leading coefficient and "c" for the absolute term of f. (x). The roots of the quadratic equation are the values of x that fulfill the equation (, ).

It is a given that the quadratic equation has two roots. Roots might have either a real or imaginary nature.

What is quadratic formlua?

D=b²-4ac

x=(-b±√(b²-4ac))/2a

y = 3x² + 7x - 8

On comparing with ax²+bx+c, we get

a=3, b=7 and c=-8

Using Quadratic formula

D=b²-4ac

   =7²+4x3x8

   =49+96

     =145>0

Hence it has real zeroes

Learn more about Quadratic equation,

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Answer:

You need us to draw a diagram or say wether it is from ship A or not only?

Answer:

337

Step-by-step explanation:

300(2)^(3/18)

= 300(2)^1/6

= 337.

Answer:

Step-by-step explanation:

Hope this helps u!!

Answer:

-5

Step-by-step explanation:

add 5 and 10 makes 14

minus 5 from 15

multiply 10 and 4 and add to 15 to get 40

subtract 45 from 40 and get -5

Answer: Choice B

They traveled 250 miles in 4 hours. Their speed was 62.5 mph.

=============================================================

Explanation:

Start at point X. Draw a horizontal line straight across until you reach the y axis. You should arrive at y = 250. This tells us that they traveled 250 miles.

Go back to point X. Draw a vertical line until you reach the x axis. You should reach x = 4. This indicates 4 hours.

Pairing up the two values together means they traveled 250 miles in 4 hours. Divide the distance over time to get the speed

speed = distance/time = 250/4 = 62.5 miles per hour

--------

Side note: unfortunately your teacher chose the label uppercase X for the point, which may be a bit confusing since it could clash with the lowercase x along the horizontal axis.

Another note: the speed represents the slope of the line

Answer:

x = 14

Step-by-step explanation:

Hope that will help you

Answer:

A. 10 km/h

B. 6 kilometers into the race

Step-by-step explanation:

Read from the graph.

The x-axis (along the bottom) is the distance in kilometers.

The y-axis (going up) is the speed in km/h.

A. Reading from the x-axis at 8, go up until you reach the line. Read to the left and we get 10 km/h.

B. Look at which point is the highest. Which is at 12 km/h where he was 6 km into the race.

Answer:

$13.60

Step-by-step explanation:

16.00 x .85 = 13.60$

-- Gage Millar, Algebra 2 Tutor

Answer:

$18.40 is the final cost

Explanation:

Multiply 15% and 16 and add the product with 16.

Answer:

58500

Step-by-step explanation:

since we have 10 numeric characters i.e

0,1,2,3,4,5,6,7,8,9

and similarly have 26 alphabetical characters

A - Z

Now we want to make a 4 characters login name with first two characters as digits and last two as letters without repetition

.•. 10 * 9 * 26 * 25=58500

Answer:

[tex]A) x+y=100 \\ ..\ 5x + y = 420[/tex]

Step-by-step explanation:

From the question we are told that:

Five-dollar bill  x

One-dollar bill  y

Total number of bills [tex]N=100[/tex]

Worth of bills [tex]w=420[/tex]

Generally the equation for Total number of bills  is mathematically given by

Since it is made up of five and one dollar bills

Therefore

  [tex]x+y=100[/tex]

Hence the Equation for Total worth of bills is

 [tex]5x+y=420[/tex]

The System of equations used is

[tex]A) x+y=100 \\ ..\ 5x + y = 420[/tex]

Answer:

Solve the first equation. Solve the second equation. If we substitute these two solutions back to the original equation, the results are positive answers and can never be equal to negative one. The answer is no solution.

Step-by-step explanation:

Answer:

The website ends in gov, the purpose of the webpage is to educate and not make money

Step-by-step explanation:

Hi kiri ☺️

Credible websites are those which are not biased and supposed to help the people without the intention of making money.

Website which is giving information with a listed author is one symbol of a credible site.

Thus option A,C,G will be true because they clearly shows that it is listed website with a purpose of education as well as have a proper management.

Other option are not much reliable as they shows whether the site is biased or not with proper management and ethics.

Learn more about credible websites here.

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Answer:

[tex]P = (2,-3)[/tex]

Step-by-step explanation:

Given

[tex]m : n = 3 : 2[/tex]

[tex]A = (8,6)[/tex]

[tex]B = (-2,-9)[/tex]

Required

The coordinate of {

This is calculated as:

[tex]P = (\frac{mx_2 + nx_1}{m + n},\frac{my_2 + ny_1}{m + n})[/tex]

So, we have:

[tex]P = (\frac{3*-2 + 2*8}{3 + 2},\frac{3*-9 + 2*6}{3 + 2})[/tex]

[tex]P = (\frac{10}{5},\frac{-15}{5})[/tex]

[tex]P = (2,-3)[/tex]

Answer:

960cm³

Step-by-step explanation:

Find the base of the triangle (use phytagoras theorem)

c²= a²+b²

20²= 16²+b²

400=256+b²

b²=400-256

b²= 144

b=

[tex] \sqrt{144} [/tex]

base= 12

Volume: (1/2×b×h)×l

= (1/2×12×16)×10

=(6×16)×10

=96×10

=960cm³

Answer:

64.8

Step-by-step explanation:

84.5 - 19.7 = 64.8

Answer:

Step-by-step explanation:

Hope this helps u!!

Answer:

GARDEN = 9 years

TREE = 99 years

Step-by-step explanation:

the following equation can be derived from the question

age of oak tree = 11x

age of garden = x

11x + x = 108

12x = 108

x = 9

oak tree = 11 x 9 = 99

Answer:

circumference=31.41593

Step-by-step explanation:

Answer:

Hello!

Im using 3.14 for pi hopefully thats fine

circumference: 31.4

area: 78.5

Hope this helps!

Answer:

0.69

Step-by-step explanation:

Answer:

(D) H_0H0​: The direction of the ball and whether it results in a hit or an out are independent.

Step-by-step explanation:

Given that

There is 300 balls random sample is taken

We need to find out the appropriate null hypothesis that lies between the ball direction and lead to a hit or an out

So

Based on the given options, the option d is correct as the ball direction and its results either be hit or on out would represent that they are independent

Therefore the option d is correct

Answer:

7.5 units^2

Step-by-step explanation:

So, let's just break apart this trapezoid into easier shapes to work with.

We can make a 1x3 rectangle with the squares that are fully covered in.

Then, make a triangle with the squares that are partially covered in above and another triangle for those below.

Now, calculating time.

With the rectangle, do Length * Width, so 1 * 3 = 3.

With the upper triangle, do (Base * Height) / 2, so (3 * 2) / 2 = 3

With the lower triangle, do (Base * Height) / 2 as well, so (3 * 1) / 2 = 1.5

Add these all up and you get 7.5 units^2

Hope that helps.

Answer:

25 Balls

Step-by-step explanation:

Answer:

m<1 = 112°

Step-by-step explanation:

Given:

Arc BC = 156°

Arc AD = 68°

Required:

m<1

Solution:

m<1 = ½(arc BC + arc AD) => based on intersecting chords angle measure theorem

Substitute

m<1 = ½(156° + 68°)

m<1 = ½(224)

m<1 = 112°

Answer:

84 degrees

40 + 56 = 96

180 - 96 = 84

Answer: I’m pretty sure it’s A but I could be wrong

Step-by-step explanation:

Numerator is the top and there are 12 fruit and 7 apple so the top number should be 7 and the bottom should be 12

Answer: 42€

How do you find this answer?

Look.

(35/100).20 =7€ =VAT

7€ + 35€ =42€

Answer:

[tex]h=2\times 10^6[/tex]

Step-by-step explanation:

We need to find h for the following condition.

2,000×h = 0.004

Dividing both sides by 2000

[tex]\dfrac{2000h}{2000}=\dfrac{0.004}{2000}\\\\h=0.000002\\\\h=2\times 10^6[/tex]

So, the value of h is equal to [tex]2\times 10^6[/tex].