Mathematics High School

Solve the inequality
*
2x^2+ 5x – 3 < 0.

Answers

Answer 1

Answer:

heres the answer I think

Step-by-step explanation:

-3 < x < 1/2

Related Questions

Consider the polynomials given below.
P(x) = 14 + 3.13 + 2x2 - + 2
Q*) = (x3 + 2x2 + 3)(x2 - 2)
Determine the operation that results in the simplified expression below.
25 + 14 - 513 - 312 + I-8
A. P+Q
B. P.Q
C. PQ
D. O-P

Answers

The operation that results in the simplified expression x⁵ + x⁴ - 5x³ - 3x² + x - 8 is; P + Q

How to Simplify Polynomials?

We are given the Polynomials as;

P(x) = x⁴ + 3x³ + 2x² - x + 2

Q(x) = (x³ + 2x² + 3)(x² - 2)

We want to find the combination of P and Q that would yield;

x⁵ + x⁴ - 5x³ - 3x² + x - 8

Let us expand Q(x) to get;

Q(x) = x⁵ + 2x⁴ + 3x² - 2x³ - 4x² - 6

Q(x) = x⁵ + 2x⁴ - 2x³ - x² - 6

Now, the combined polynomial shows us that coefficient of x⁴ is 1 and coefficient of x³ is - 5.

By inspection, we can say that the combination that would produce the required result is;

Q(x) - P(x) = x⁵ + 2x⁴ - 2x³ - x² - 6 -  x⁴ - 3x³ - 2x² + x - 2

Q(x) - P(x) = x⁵ + x⁴ - 5x³ - 3x² + x - 8

Read more about Simplifying Polynomials at; https://brainly.com/question/1301685

#SPJ1

What is the value of x?

Answers

Answer:

C

24Step-by-step explanation:

Trust me on this one.

In OK, which arc is a major arc?
G
H
74
K
A GEI
C FJG
D IJF
B HIJ

Answers

Answer:

D

i thank

Step-by-step explanation:

I need somebody to choose a random amount of time in either minutes or hours. Doesn't matter how long. Thanks!

Answers

Answer:

69 minutes? i don't know haha

Step-by-step explanation:

73 hours

148 minutes

23 minutes

5 hours

Hope this helps with what you are working on. :)

In quadratic functions/equations; roots/solutions/x-intercepts/zeros all represent the same values/points.

True

False

Answers

Answer:

True

Step-by-step explanation:

Solutions to quadratic equations are often called

roots / zeros / x- intercepts

If You Have NO Explanation Than Don't Answer.

Answers

Answer: Option C

Step-by-step explanation:

C because 6+1=1+1+1+1+1+1+1

Answer:

C

Step-by-step explanation:

We want to find which model shows two equal expressions. We know that the value of x is 6. That being said, on the left side of each equation, plug in 6 for every "x" you see. Then, add the values on both sides. If they're equal, that's your answer.

For example:

In choice A, we see two x's, so we plug in 6 for them both and add them. That's 12 on the left side. On the other side of the equation, we have 7 "1" boxes, which simply just means add them, so that's 7 on the other side. 12 does not equal 7, therefore A is not the answer. However, for choice C, we are given x, which we know is 6, and a "1" box, which simply means 6 + 1, which is 7. On the other side of this equation, we have 7 "1" boxes, so that's 7. The equation becomes 7 = 7, which is true, so that is our answer.

Which angles!!! Need answers 40% of my grade please and thank you

Answers

Answer:

alternate interior angle

Which is greater? 40 mm or 3 m
and how do I show my work for that?

correct=brainliest

Answers

Answer:

The answer is 1 meter

Step-by-step explanation:

One meter is equal to 1000 mm

Find the perimeter of the polygon if
5 cm

6 cm

7 cm

P = ? Cm

Answers

Answer:

(2) is the answer for your question

Two rectangles are similar. The area of the first rectangle is 20m2. The second rectangle is similar by a scale factor 4. What is the area of the second rectangle?



options

300 m2



340 m2



320 m2



380 m2

Answers

Answer:

320 m2

Step-by-step explanation:

I think the answer would be B) 340 m2

A window in the shape of a semi circle has a radius of 40 cm. The window is shown below. Find the area of the window.

Answers

Answer:

[tex]A=2513.27\ cm^2[/tex]

Step-by-step explanation:

The radius of semicircle window, r = 40 cm

The area of semicircle is given by :

[tex]A=\dfrac{\pi r^2}{2}[/tex]

Substitute all the values in the above formula.

[tex]A=\dfrac{\pi \times 40^2}{2}\\\\A=2513.27\ cm^2[/tex]

So, the area of the window is equal to [tex]2513.27\ cm^2[/tex].

A decagon.
Gregory drew this regular decagon. All angles have the same measure.

What is the sum of the interior angle measures?


°
What is the measure of each angle?


°

Answers

Answer:

78

Step-by-step explanation:

Answer:

1440 and 144 on edg 2020-2021

Step-by-step explanation:

The lines below are parallel. If the slope of the green line is -3, what is the
slope of the red line?
m =

Answers

Answer:

-3

Step-by-step explanation:

parallel lines are congruent which means that they equal the same thing

PLS HELP ILL MARK U BRAINLIEST
I DID THE FIRST 1 I NEED HELP WITH THE SECOND <3

Answers

Answer:

7m and 49 m^2

Step-by-step explanation:

i am not sure on the second answer

Billy made 2 gallons of juice for a picnic. He said that he made
2
4
quarts of juice.

Answers

okay so what’s the question

An endocrinologist is interested in the effects of depression on the thyroid. It is believed that healthy subjects have a mean thyroxin (a hormone related to thyroid function) level of 7.0 micrograms/100 ml and a standard deviation of 1.6 micrograms/100 ml. The endocrinologist wants to assess whether the mean thyroxin level is different for those with depression. She samples 35 subjects with depression and obtains a sample mean of 7.82 micrograms/100 ml for thyroxin. What null and alternative hypotheses should she test

Answers

Answer:

H0: μ = 7.0

H1: μ > 7.0

Step-by-step explanation:

The null hypothesis will equal and take up the value of the population mean value ;

The population mean value, μ is 7.0

Null hypothesis ; H0: μ = 7.0

The alternative hypothesis will align with the claim ; which will take up and side with the value and direction of the sample mean ; 7.82 micrograms/100 ml

7.82 > 7.0 (sample mean is greater Than the population mean).

Hence, the alternative hypothesis, H1 will be ;

H1 : μ > 7.0

yo i really need help please in order to pass this i’ll give a brainliest to anyway who knows the correct answer please no links

Answers

all i know is that it would not be 13.9

Answer:

12in

Step-by-step explanation:

this is the only subject i'm good at in math XDDD.

Sami cut 6 and three fourth inches off a long roll of paper if the row 36 and one third inches long how long was the original roll of papers

Answers

Answer:

43 1 ÷12

Step-by-step explanation:

The computation of the length of the original roll of papers is shown below:

36 1 ÷3 and 6 3 ÷ 4 together

Now convert the above fractions into a number

36 1 ÷ 3 = 109 ÷3

And,

6 3 ÷4 = 27 ÷ 4

Now add these two numbers i.e.

109 ÷3  + 27 ÷ 4

= 436 + 81 ÷ 12

= 517 ÷12

= 43 1 ÷12

Using the order of operations, what should be done first when evaluating this expression?

Negative one-half divided by 2 (9 + 3) minus 4 minus three-fourths (8)
Divide Negative one-half divided by 2.
Add 9 + 3.
Multiply Negative three-fourths (8).
Subtract 3 minus 4.

Answers

Answer:

You add (9+3)

Step-by-step explanation:

because PEMDAS evaluates the parenthesis first,

Answer:

It' B

Step-by-step explanation:

I got a 100 on the test

Which angles are neither obtuse angles nor acute angles?

Answers

Answer:

A right angle is neither Obtuse nor Acute

Step-by-step explanation:

Answer: Which angles are neither obtuse angles nor acute angles?

please help 6th grade math

Answers

Answer:

B

Step-by-step explanation:

What is 5 - (-2) =
Plz help I’m thinking it’s 3 but don’t know

Answers

5-(-2) is 7. 2 negatives is a positive. It’s basically 5+2.

Answer:

7

Step-by-step explanation:

just add them

them you get answer

John had 8 marbles and 4 red marbles in the bag. He took 1 marble from the bag and then replaced it and then took a second marble. What is the probability that john gets a red marble and then a red marble again?

A: 1/9

B: 3/4

C: 1/3

D: 1/11

Answers

Answer:

1/4

Step-by-step explanation:

P(red,red) = 4/8 x 4/8 = 1/2 x 1/2 = 1/4

What is the value of x? Show me how you got your answer.

Answers

Answer:

x = 30

since 3x = 90 degrees, then x = 90/3 = 30

Step-by-step explanation:

PLEASE HELP ME OUT! QUICK POINTS FOR YOU!

All information needed can be found in the image below
Thank you in advance.

Answers

Answer:

5π

Step-by-step explanation:

just need to find half of the circumference

​What is the best estimate for this sum?

1/3+4/7

Answers

Answer:

19/21

Step-by-step explanation:

1×7+4×3/21

19/21

Oscar is drving 85 miles per hour. At this rate, how many miles will he drive in 2 1/2 hours?​

Answers

Answer:

212.5 miles

Step-by-step explanation:

A paint color is made using 4 drops of red and 5 drops of blue for each 5 gallons of paint. How many gallons of paint are being colored when 45 drops of color are used?

Answers

25 gallons


Hope it help

Month Change in Water Level (in.) March 8 April –3 May –9 June 5 The water level for a lake was recorded for four months. The data is shown in the table. Which month shows the greatest change in water level? A) March B) April C) May D) June

Answers

Answer: May

Step-by-step explanation: 9 is greater than 8 don't worry about the signs

MULTIPLICACIÓN Y DIVISIÓN DE NÚMEROS ENTEROS
11. -2115 ÷ -9 =
12. 7854 ÷ -34
13. 3425 × -4 =
14. -7 × 5 × -3 =
15. 12 × -7 × 9 =

Answers

11. -235
12. -231
13. -13700
14. 105
15. -756
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