Mathematics High School

Find the discriminant and the number of real roots for this equation.
x2 + 2x + 7 = 0
A. 28; two real roots
B. -24; no real roots
C. -24; one real root
D. 28; one real root
SB

Answers

Answer 1
B. -24; no real roots

Related Questions

im confused on this

Answers

Answer:

The correct answer would be g) The additional fee per yoga is $8.25 .

A candy company ships 1,200 candy bars to
a local store. The store manager chooses a
random sample of 40 and finds 3 are
expired. How many candy bars are likely to
be expired in the entire shipment?

Answers

Answer:

90 candy bars will be expired!

Step-by-step explanation:

40/3=1200/x

x = 90

Can you explain the question in more detail and if you mark me brainilet i will answer >:D

90 btw

4a (8a- 4a + 1)
Helpehelpeekendnhdhdjdjdjjdfjjfjfjf

Answers

Complete the math in the brackets (4a + 1)

Multiple each term in the brackets by 4a

4a (8a - 4a + 1)
4a (4a + 1)
16a^2 + 4a

56,000 is what percent of 70,000?

Answers

Answer:

39200000

Step by step explanation is in the photo

Solve using Square Roots.

16x² - 34=15

Answers

Answer:

[tex]\sqrt{\frac{49}{16}[/tex]

Step-by-step explanation:

helppp i don’t know how to solve will make right answer brianlyist

Answers

Answer:

MARK ME BRAINLIEST OR ELSE .....

nothing lol.

Step-by-step explanation:

What is BD? Plzzzsss Helppp

Answers

Answer:

Step-by-step explanation:

since the two angles are the same we can set up a relationship between the two triangles and set them equal to each other and solve for X  :) , as follows

SOH   sin = Opp / Hyp

triangle 1  )   sin(Ф) = x / 12

triangle 2 )    sin(Ф) = x + 5 / 27

since sin(Ф) is the same for each triangle.. set those other sides equal to each other

x/12 = x+5 /27

now solve for x using your mad algebra skilz  :P

27 / 12 = x + 5 / x

2 3/12  = x/x  + 5/x

2 1/4 = 1 + 5/x

1 1/4 = 5/x

x = 5 / 1 1/4

x = 4   nice  :)

So BD is then

4 + 4+5

so BD = 13  

tell your professor / teacher that you figured it out all on your own  :D

( yes.. that was tricky to figure out )

Please I need help with this asap!!! I will mark you as brainliest if right!!! Explain!!

Answers

9514 1404 393

Answer:

  not similar

Step-by-step explanation:

For the triangles to be similar, at least two angles must match. Here, there is an 81° angle in both triangles. This means the sum of the remaining two angles must be ...

  180° -81° = 99°

If the missing angle in either triangle matched the other given angle in the opposite triangle, the sum of those would be 60° + 40° = 100°, not 99°. This triangle pair does not have two matching angles, so the triangles are not similar.

ABC angles: 60°, 81°, 39°

FED angles: 59°, 81°, 40°

i need help asap pls!!

Answers

Answer:

x = 11°

Step-by-step explanation:

x = 11° because it is an alternate interior angle to 11°

Bill has $7.30 in dimes and quarters. He has a total of 40 coins. How many quarters and dimes does he have?

Answers

Answer:

35 quarter's and 5 dimes

HELP ME PLZZ, ASAP!!

In your own words explain what Complementary means.

Answers

Complementary means something is hard

Please i need your help!!! 40 points:)

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Plot the points on the picture above, that should be the answer. :)

10) Use the following information to answer the question.

You have 40 individual socks in your sock drawer—10 black, 12 brown, 16 white, and 2 blue.

What is the probability of getting either a blue pair or a black pair in two tries?

Answers

Answer:

3/5

Step-by-step explanation:

A student made a chart to classify plates by the types of boundaries. What
crustal feature is most likely found between the Pacific and North American
Plates? *
Plates at boundary
South American/African
Eurasian/Pacific
North American/Eurasian
Pacific/North American
Type of boundary
Divergent
Convergent
Divergent
Transform
Your answer

Answers

Answer:

trench

Step-by-step explanation:

Here is a list of numbers:
51, 29, 58, 37, 63, 37, 4, 4, 2
Calculate the range

Answers

The range is 61.

The Range is the difference between the lowest and highest values. So, the highest number above is 63 and the lowest is 2. Just subtract those two numbers and get you’d get 61.

Therefore, the range is 61.

hi please help, i have 2 similar questions thank you

Answers

Answer:

1) [tex]area \: = a^{2} + 2ab + b^{2} [/tex]

Step-by-step explanation:

hope it helps

Which line plot displays a data set with an outlier?

Answers

The first one (top left)

Answer:

the answer is on the top right  with 10-19 one dot on 10 and 1 on 19

Step-by-step explanation:

just did the test and got it right let me know if you  need more help

HELP PLEASE ANYONE CAN ANSWER

Answers

Answer:

∆SUY=90

∆XUT=90

7x+8x+90=180(being linear pair)

Rewrite in simplest terms: 5w -9( 6W + 9) help please
​

Answers

I believe the answer is 11W-0 or just plain 11W

Help please I really need help, thank you

Answers

Answer:

What do you need help with? Answer and I will tell you anything you need.

Step-by-step explanation:

Find the approximate radius a circle if its circumference is 37.68 inches. Use (pie symbol)= 3.14.

Answers

Answer:

radius = 6 inches

Step-by-step explanation:

37.68/3.14 = 12 = diameter

radius = 12/2 = 6 inches

Circumference of a circle:
C = 2 pi r
r = C / 2 pi
r = 37.68 / (2 * 314)
r = 6

Area of a circle:
A = pi r^2
A = 3.14 * 6^2
A = 113.04

Answer:
The area of the circle is 113.04 square units

-6 (x+1) and explain how you know

Answers

Answer:

-6x - 6

Step-by-step explanation:

-6 x x = -6x

-6 x 1 = -6

put them together to get:

-6x - 6

Answer:

−6x−6

Step-by-step explanation:

(8+6×6)/11+7×2 plssssssssssssss anyoneeeeee

Answers

Answer:

it 18

Step-by-step explanation:

:D

700'ün %90'ı kaçtır? nolu çabuk​

Answers

Step-by-step explanation:

90% of 700=90/100×700=630

Answer:

630

Step-by-step explanation:

1 pizza costs $0.50 to make. They sell it for $12. Find the percent markup.

Answers

Answer:

ok let me try this again

To explain a markup, let's use an example: Let's say you purchase a box of paper that costs one dollar. You aim for a profit of 50%. By multiplying the cost by 50%, you get $0.50. This is your markup price. Add that to the price that you paid to purchase the box of paper, and now the total is $1.50. This is the selling price of the box of paper. Therefore, your markup percentage is 50%.

did that help i was not a faker though i was just trying to explain it to him/she better and can i have brainlist please

How can I show my work even though I already know the answer “Ella is building a rabbit pen. The area of the rabbit pen is 50 square feet.
Each rabbit needs at least 4 square feet of space. How many rabbits can
the pen hold?”

Answers

Answer:

12

Step-by-step explanation:

To show your answer just show 50 divided by 4.

please help me solve this question i need help!!!

Answers

Answer:8.5

Step-by-step explanation:I just know it’s

it would be c. 8.5 bc you’d divide the area by 11 (93.5 / 11 = 8.5)

15 POINTS- ITS DUE TONIGHT

Answers

ok this isn’t my answer i found it on quora but it answers ur question u have

We can write a system to solve this problem

Let x= the radius of Circle A

Let y=the diameter of Circle B

x=2y-3

2x+y=49

since we are trying to find the area and the circumference of circle A, we only have to find what x is

x=2y-3 → y=1/2x+3/2

next, we plug in 1/2x+3/2 for y:

2x+1/2x+3/2=49

we can then multiply all the numbers by 2 to get rid of the fractions:

4x+x+3=98

5x+3=98

5x=95

x=19

Circle A radius=19ft

Finally, we solve for the area and circumference:

Area:

A=pi*r^2

A=3.14*19^2

A=1133.54 feet^2

Circumference:

C=2*pi*r

C=2*3.14*19

C=119.32 feet

What is another word for making something larger in a dilation

Answers

Answer:

expand enlarge

inflate lengthen

stretch broaden

open amplify

augment develop

Step-by-step explanation:

expand enlarge

inflate lengthen

stretch broaden

open amplify

augment  develop

Can someone please give me the answer for this?

Answers

Answer:

y=(6,3)+(-2,1)

;) theres ur answer bby girl
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