how many solutions does 8x^2+5x-7=0 have?

Answers

Answer 1
I think it is x=2 just try it out if that don’t work try something is x=2

Related Questions

Which one is greater 7.216 or 7203

Answers

7203 is greater because it font got no decimal or nothing. Is a whole number

what is 0.5% as a decimal and as a mixed number or fraction in simplest form

Answers

Answer:

this should help

Step-by-step explanation:

percent=5%

decimal=.05

fraction=1/20

A single six sided die is rolled. Find the probability of rolling a number more than 2

Answers

Answer:

2/3

Step-by-step explanation:

outcomes are (1,2,3,4,5,6)

No. Of outcomes =6

no. More than 2 are : (3,4,5,6)

Therefore the probability is 4/6 = 2/3

The probability of rolling a number more than 2 is 2/3

What is probability?

Probability is the measure of the chances of an event happening.

Probability of an event is calculated by dividing the number of favorable outcomes of the given event divided by the total number of given outcome

Let E be an event , Probability of the event  E,

P(E) = outcomes favorable to E/ total outcomes

In an experiment a single six sided die is rolled

Therefore the possible outcomes are {1,2,3,4,5,6}

Total number of possible outcomes = 6

Let E be the of rolling a number greater than 2

Possible outcomes in E are {3,4,5,6}

number of favorable outcomes of E , n(E) = 4

The probability of E , P(E) = n(E) / total number of outcomes = 4/6  = 2/3

Therefore the probability of rolling a number more than 2 is 2/3 = 0.667

Also, Learn more about probability from the link below:

brainly.com/question/11234923

#SPJ2

Define the word evaluate. in complete sentences

Answers

Answer:

A woman evaluates a gemstone to determine it's value. Licensed from iStockPhoto. verb. To evaluate is defined as to judge the value or worth of someone or something.

I hope It's right. Sorry if it isn't.

Have a wonderful day/night :)

describe how you can use the make a ten strategy to fin the sum 7+9.

Answers

You can take 1 from the number 7 and add it to 9 so you have ten then add 6

Billy puts $4900 in a bank that pays 6% annually.
How much will be in the bank after 4 years?
Put it in the chart by what he gets every year

Answers

If it's adding to the 4,900 in the bank just add the numbers to 4,900.

After 4 years. 1,176.

Year 1: 294

Year 2: 588

Year 3: 882

Year 4: 1176

Year 5: 1470

Year 6: 1764

Evaluate the following. Urgent Please Answer ASAP

Answers

Answer:

number 1. is 1

number 2 is 17

1) Chris Campbell opened a private security service. To pay for office furniture and training
for his employees, he borrowed $14,800 and agreed to pay the loan back in 10 months
at 9% simple interest. Find the total amount he will require at the end of that period to
repay the loan.

Answers

Answer:

16,132 that is adding the 9% interest fee he will have to pay $16,132 back by the end of that period.

Step-by-step explanation:


Donna sliced several pizzas to serve at her party. Each slice represents
1
7
of each pizza. There are 49 slices of pizza. How many pizzas did Donna slice?

Answers

She sliced 7 pizzas as there are 7 slices per pizza so 49/7 is 7

Answer:

She sliced 7 pizzas

Step-by-step explanation:

7 times 7 = 49

4 + 3² × 2 - 1

full account please​

Answers

Answer:

21

Step-by-step explanation:

the answer was simplified

Find the differential of the function

a. y=x4sin(9x)
b. y=x4sin⁡(9x).

Answers

Answer:

We want to find:

[tex]y'*dx = dy[/tex]

Where:

[tex]y = x^4*sin(9x)[/tex]

Remember that when we have a function like:

f(x) = g(x)*h(x)

The derivation gives:

f'(x) = g'(x)*h(x) + g(x)*h'(x)

In this case we can define:

f(x) = y

g(x) = x^4

h(x) = sin(9x)

These functions are easy to differentiate:

g'(x) = 4*x^3

h'(x) = 9*cos(9*x)

Then we have:

[tex]y' = \frac{dy}{dx} = 4x^3*sin(9x) + x^4*9cos(9x)[/tex]

Then we can write:

[tex]dy = (4x^3*sin(9x) + 9x^4*cos(9x))dx[/tex]

I need help with this please

Answers

the third answer (bottom left): 3^7 x 1/3^4

the negative exponent means its 1 divided by the number and exponent. i hope this helps you!! <3

Answer:

[tex]3^{7} * \frac{1}{3^4}[/tex]

Step-by-step explanation:

19/25 writen as a decimal

Answers

Answer:

0.76

Step-by-step explanation:

0.76 is a decimal and 76/100 or 76% is the percentage for 19/25.

Answer:

0.76

Step-by-step explanation:

you would do 19/25

(to do fractions to decimal, take the top number and divide it by the bottom, dont forget to do mixed number if needed to though!)


The perimeter of a rectangle is 180 meters. If the length of the rectangle is 20 meters more than the width, what are the dimensions of the rectangle?

Answers

Answer:

you just need all your dimensions to equal 180

Step-by-step explanation:

180 = 20........

3% simple annual interest paid on $250
The simple interest earned in year 1 is calculated as
Year
Total Interest Paid
The simple interest earned in year 1 is
The total interest earned at the end of year 4 is
1
?
2.
$15.00
3
$22.50
4 how do u get these
?

Answers

Answer:

1st one is (0.03)(250)

2nd one is $7.50

3rd one is $30.00

Step-by-step explanation:

Answer:

1st one is (0.03)(250)

2nd one is $7.50

3rd one is $30.00

Step-by-step explanation:

edgenutiy sucks

btw the dude above me got it right

What is the product in simplest form? −8/9⋅5/6

−20/27

−1/5 −1
−13/15

Answers

Answer:

Step-by-step explanation:

Hello,

-8/9 X 5/6 = -40 / 54. The greatest common factor they both go into is 20. Divide -40 and 54 by 20, and the answer simplified is -20/27, letter C.

 

              Hope this helps     ;)

6 squared + 8squared = 100 what would x^2 (squared) divides by 100 be ?

Answers

If you are trying to say what is square root of 100 then it is 10. Like 10^2 equals 100.

(2) 1. To earn money for gifts, Debbie sold decorated pinecones. If she sold 100 pinecones at $0.25 each, how much money did she earn?​

Answers

Answer:

$25

Step-by-step explanation:

100 pinecones sold at $0.25 each is written as 100×.25 or one quarter of 100, which is 25.

which is greater thirty six and nine thousandths or four tens

Answers

Answer:

four tens

Step-by-step explanation:

four tens is greater because:

four tens = 40

thirty six and nine thousandths = 36.009

36.009 < 40

216% as a decimal? Please I don’t understand how to do these types of big numbers

Answers

Answer:

Step-by-step explanation:

216% = 2.16

all you have to do is move the decimal over two places from right to left.

WRITE AN EQUATION of the line that passes through (0,−5) and (−5,−5)
PLEASE HELP WILL MARK BRAINLEST!!!!!!!!!!!!!!!!!!!!!!

Answers

um i think it might be y+5=0

John bikes at a speed of 10 miles per hour. His friend Brian is slower, his biking speed is only
8 miles per hour.

Today the boys went for a 20 miles trip, each boy was biking at his usual speed. How long did John wait for Brian at the finish line?

Answers

Answer:

I think John waited half an hour for Brian

Step-by-step explanation:

20/10=2

20/8+2.5

Answer:

1/2 hours

Step-by-step explanation:

Nico and Albert are finishing up a science project. They measured the length in inches of three insects. They also found the average measurement of two more insects from a website. Bug Length Bug Length in inches Lady bug StartFraction 3 Over 8 EndFraction Ant One-fourth Firefly StartFraction 7 Over 8 EndFraction Honeybee 0.8 Deer tick 0.2 Which list shows the lengths from shortest to longest? 0.2, one-fourth, StartFraction 3 Over 8 EndFraction, 0.8, StartFraction 7 Over 8 EndFraction 0.2, one-fourth, StartFraction 3 Over 8 EndFraction, StartFraction 7 Over 8 EndFraction, 0.8 One-fourth, 0.2, StartFraction 3 over 8 EndFraction, StartFraction 7 Over 8 EndFraction, 0.8 0.8, one-fourth, StartFraction 3 Over 8 EndFraction, 0.2, StartFraction 7 Over 8 EndFraction

Answers

Answer:

Step-by-step explanation:

Given the length of the bugs as shown;

Lady bug = 3/8

Ant = 1/4

Firefly = 7/8

Honey bee = 0.8

Deer tick = 0.2

Before we arrange the length in ascending order (shortest to longest), we will have to represent them in percentage.

Lady bug = 3/8×100

= 300/8

= 37.5%

Ant = 1/4×100

Ant = 25%

Firefly = 7/8 × 100

Firefly = 87.5%

Honey bee = 0.8×100

Honey bee = 80%

Deer tick = 0.2×100

Deer tick = 20%

On rearranging in ascending order:

20%, 25%, 37.5%, 80%, 87.5%

Based on the insect

Deer tick, Ant, ladybug, honey bee, Firefly

Based on their length:

0.2, 1/4, 3/8, 0.8, 7/8

Answer:

a

Step-by-step explanation:

got it right on edge 2021

A multiple of a number is either ------than or----- to the number

Answers

Answer:

its less than, equal to

the probability that any one egg is not spoiled in a carton of 6 eggs is 75%

Answers

Answer:

This might seem like an obvious thing to do, but Murphy points out that the date printed on the packaging isn't always an expiration date. A carton of eggs may not always need to be thrown out as soon as the date passes. The date is usually just an indicator of the egg's freshness.

"The expiration dates are not expiration dates. Sometimes they are, but most of the time, the printed date is a best used-by date or sell-by date," Murphy tells INSIDER. "So, that does not always mean that the eggs have gone bad. Food can be bad before the date. Eggs and other dairy products are temperature sensitive. If you left your carton of eggs out on the counter for an extended period of time, the eggs would actually go bad before the date."

Per Murphy, "bad," however, means that you shouldn't eat the egg because it has the potential to make you sick. But, eggs can still be fresh even if they have passed their sell-by or used-by date.

"The fresher an egg is, like a lot of things, the better it tastes. In terms of freshness, a company can put a sell-by date or best used-by date on the carton. There is no regulation on that. The date is a good indicator of freshness," said Murphy. "The closer you get to the date, the less fresh the eggs are going to be. But, just because you've hit that date or gone beyond it doesn't mean that the eggs are necessarily bad."

Step-by-step explanation:

The easiest way to tell whether or not a carton of eggs has gone bad is to do the float test. To conduct the float test, take one egg and place it in a bowl of room temperature water, according to Murphy. If the egg sinks to the bottom and lies flat on its side, it is still fresh. If the egg stands up on its end like it's standing up, then the egg has gone bad.

"When an egg is first laid and it's truly really fresh, it's completely full there is very little air inside. But, egg shells are porous. So, as time goes by the inside starts to evaporate and is replaced by air," said Murphy. "The amount of air in the egg depends on what happens to the egg when it is dropped into water. Generally, if an egg actually floats that's the point when an egg has gone bad."

According to a Gallup poll in October 2015, having young children at home greatly influences whether women in the U.S. prefer to stay at home or work outside of it. More than half of women, 57%, who have a child younger than 18 would ideally like to stay home and care for their house and family, while 58% of those without young children would rather work outside the home. Having young children makes little difference in men's preferences, with close to three-quarters preferring to work regardless of their parenting status. Gallup states that their method has a margin of error of 0.031.
1. Give a point estimate for the proportion of all US women with a child under 18 that would like to stay at home.
2. Give an interval estimate for the proportion of all US women with a child under 18 that would like to stay at home.
3. What is the difference between a point estimate and an interval estimate?
A. A point estimate only tells us the best guess for the​parameter; an interval estimate is more likely to be close to the parameter than a single point.
B. A point estimate only tells us the best guess for the​ parameter; an interval estimate also gives us a measure of how far away that guess is likely to be from the parameter.
C. A point estimate only tells us the parameter​ value; an interval estimate also gives us a measure of how far away that guess is likely to be from the parameter.
D. A point estimate only tells us the parameter​ value; an interval estimate also gives us a plausible range of values for the statistic.
E. A point estimate only tells us the parameter​ value; an interval estimate also gives us a plausible range of values for the parameter.

Answers

Answer:

a

  [tex]\^p = 0.57[/tex]

b

[tex]0.539 <p< 0.601[/tex]

c

The correct option is C

Step-by-step explanation:

The percentage  of women who would like to stay at home and take care of their family due to the fact that they have a child younger than 18 is  [tex]p_1  =  57\%[/tex]

The percentage of women who would rather work outside their home due to the fact that they don't have children is   [tex]p_2 =   58\%[/tex]

The  margin of error is [tex]E = 0.031[/tex]

Gnerally the point estimate of all US women with a child under 18 that would like to stay at home is mathematically represented as

       [tex]\^ p =  \frac{57}{100}[/tex]

       [tex]\^ p = 0.57[/tex]

Gnerally the interval estimate for the proportion of all US women with a child under 18 that would like to stay at home is mathematically as

       [tex]\^ p -E  < p <  \^ p +E[/tex]

=>    [tex]0.57 -0.031 <p<  0.57 + 0.031[/tex]

=>    [tex]0.539 <p< 0.601[/tex]

Which expression can be used to find the number of liters in 15 quarts?

Answers

15 divided by 0.946 is the expression

A line has a rise of 4 and a run of 6, what is the slope?
3/2
1/2
2/3

Answers

I think it’s 3/2 because a rise is the y coordinate and the run is an x coordinate

Answer:

it's is 2/3

Step-by-step explanation:

100% it's c

ANSWER QUICK!


Which best represents the law of conservation of mass?


mass of reactants > mass of products

mass of reactants < mass of products

mass of reactants = mass of products

mass of reactants → mass of products

Answers

Answer:

mass of reactants before reaction is equal to mass of (products) after

hope this helps and can i get brainliest i answered first

Step-by-step explanation:

Answer:

It would be = mass of products

Step-by-step explanation:

In the first quadrant you start at (7,4) and move 4 units left and 3 units up.

Answers

Answer:

(3,7)

Step-by-step explanation:

(7,4)

Moving left and right relates to x

Moving up and down relates to y

When you move to the left, you subtract

When you move to the right, you add

When moving up, you add

When moving down you subtract

X= 7-4 = 3

x=3

Y= 4+3 = 7

y = 7

(3,7)

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