solve the quadratic equations
1)a20-3a+2=0
2)x2-6x+9=0
3)y2+8y+16=0
4)z2-4z=0
5)z2-4=0


Answers

Answer 1

A20-3a+2=0

22-3a=0

-3a=-22

a=22/3

A= 7,3


Related Questions

Please help hurry i will give brain

Answers

Answer:

A

Step-by-step explanation I counted the numbers.

Which statement is true about all parallelograms?
A. The diagonals are congruent.
B. The area is the product of two adjacent sides.
C. The opposite angles are congruent.
D. The diagonals are perpendicular to each other.

Answers

Answer:

C let me know if im wronggg

Answer:

I'm pretty sure its the answer is C.

equivalent fractions, please help​

Answers

The answer is 7/10. I hope this helps you, have a good day!

Answer:

Step-by-step explanation:

49/70 = 7/10

Given the function f(x) = -5+4x, then what is -f(x) as a simplified polynomial?

Answers

Answestf u

Step-by-step explanatio

ggggggggggggggggggggggggggggggggggg

What is the equation
in slope-intercept
form of the line that
passes through the
points (-4, 20) and
(2,-34)?

Answers

i believe the answer is y=-9x-16 !

Which of the following is the simplified form of (3-5)3? A.-8. B.-1/64. C.8. D.-12

Answers

Answer:

Sorry keep trying buddy

Step-by-step

sorry

in how many ways can 4 books be arranged on a shelf if there are 8 books to choose from?

Answers

Answer:

1680 ways

Step-by-step explanation:

By using the formula for permutation, which is nPr=n!/(n-r)!,

8P4=8!/(8-4)!

=8!/4!

=8×7×6×5

=1680

Or if you just want to use the multiplication rule (which is simpler).

8×7×6×5=1680

Answer:

im pretty sure its  

1680

Step-by-step explanation:

3/11 - 2.12
ANSWER PLEASE

Answers

Answer:

-1.84727272727

Step-by-step explanation:

calculator

Answer:

The answer is, 3/11 - 2.12.=1.847

Step-by-step explanation:

Definition of fraction:

In mathematics, a fraction is used to represent a portion of something larger. It represents the whole's equal pieces. The numerator and denominator are the two elements of a fraction. The numerator is the number at the top, and the denominator is the number at the bottom. The numerator specifies the number of equal parts taken, whereas the denominator specifies the total number of equal parts in the total.

5/10, for example, is a fraction.

The numerator is 5 and the denominator is 10.

According to the question:

3/11 - 2.12.

= [tex]3/11-212/100\\300-2332/1100\\2032/1100\\1.847[/tex]

To know more about fraction here, https://brainly.com/question/78672

#SPJ2

Given g(x)=12x-2, what is the value of f(1). A. 12 B.-10 C. 10 D. -12

Answers

Answer:

g(1) = 12(1) - 2 = 10

Step-by-step explanation:

Where is f(x)?

If you meant to type g(1), then:

g(x) = 12x - 2 and g(1) = 12(1) - 2 = 10

Who could help me with this please and thank you

Answers

Answer:

Step-by-step explanation:

let the number be x

so according to the question ur equation is

4x=5<x^2

4x-5=x^2

4-5=x^2/x

-1=x



A training field is formed by joining a rectangle and two semircles, as shown below. The rectangle is 99 m long and 70 m wide. What is the length of a training
track running around the field? (Use the value 3.14 for and do not round your answer. Be sure to include the correct unit in your answer.)

Answers

Answer:

417.8 m

Step-by-step explanation:

99 * 2 + 2 * 3.14 * (70/2) = 417.8

Carson invested $3,900 in an account paying an interest rate of 2.1% compounded
monthly. Assuming no deposits or withdrawals are made, how much money, to the
nearest ten dollars, would be in the account after 14 years?

Answers

Answer:

Try using an interest calculator

Step-by-step explanation:

It's a life saver!

Samantha saves at least 10% of the money she earns each month. She earns $120 each month for a year. Which inequality describes the total amount Samantha saves?

Answers

Step-by-step explanation:

10 % each month is $12.00 12 months in a year 12 x 12.00 = $144.00

The inequality to describe the total amount Samantha saves is s > 15.

The correct option is (A).

What is Inequality?

Inequalities are mathematical formulas in which neither side is equal. We compare two values in inequality.

As per the given data:

We are given that Samantha saves at least 10% of her monthly salary.

Samantha is earning $150 each month for a year.

To find the amount Samantha at least saves in a month:

= 10% of her monthly salary

= 10% × 150

= 10/100 × 150

= 15 dollars

As she is saving, at least 15 dollars, then the inequality to describe her savings is as follows:

savings > 15

The inequality to describe the total amount Samantha saves is s > 15.

Hence, The inequality to describe the total amount Samantha saves is

s > 15.

Learn more about Inequality here:

brainly.com/question/30231190

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(The given question is incomplete, the complete question is given below)

Help with math please

Answers

c would be 90 degrees

Liz walks 1/2 mile in 20 minutes on Monday and 3 3/4 in 150 minutes on Sunday is this proportional or non -proportional

Answers

Answer:

proportional

Step-by-step explanation:

so if 1/2 is 20, 1/4 is 10, and 1 whole mile is 40.

40 + 40 + 40 + 10 + 10 + 10 = 150

because we used the reasoning from the first part and it turned out correct, it is proportional

split 75 in the ratio 7:8

Answers

Answer:

35 and 40

Step-by-step explanation:

total ratio= 15

7/15×75=35

8/15× 75= 40

The ratio of boys to girls is 4 to 6. If the school has 800 students, how many are girls

Answers

Answer:

Yo, there would be 320 boys and 480 girls. Cheers

Step-by-step explanation:

Since the ratio is 4:6. that just means there's 1.5 the amount of girls as there is boys.

Answer:

480

Step-by-step explanation:

No

PLEASE ASSIST ME IN THE ALGEBRA PROBLEM !!!

Answers

Answer:

Solution given.

centre (h,k):(-6,1)

radius (r)=2

we have

equation of a circle is:

(x-h)²+(y-k)²=r²

(x+6)²+(y-1)²=2²

(x+6)²+(y-1)²=4 is a required equation of a circle.

The circumference of a circle is 24 PI IN. What is the area, in square inches. Express your answer in terms of pi.

Answers

Answer:

45.84

Step-by-step explanation:

Help plz..And No links!! I repeat No links!!

Answers

Answer:

[tex] \frac{26}{13} = \frac{36}{wx} \\ wx = 18[/tex]

last assignment due in math 4 me..
i forgot how to solve these, could anyone explain/solve one or both of these

Answers

Answer:

First one is 204 the second one is 207

Step-by-step explanation:

Mutliply width* length

simplify this for me:

Answers

Answer:

3¹²

Step-by-step explanation:

First lets simplify:

(3⁵)² would be 3¹⁰

and 3⁻² would stay the same:

Now;

[tex]\frac{3^{10} }{3^{-2} }[/tex]

Now keep the base same and subtract exponents:

10 - (-2) = 12

=> Therefore the answer would be 3¹²

Hope this helps!

Answer:

3¹²

Step-by-step explanation:

This kinda Questions can be done using the Law of exponents as ,

[tex] a^m \div a^n = a^{m-n}[/tex][tex] (a^n)^m = a^{mn}[/tex]

So using these properties we have ,

→ (3⁵)² / 3-²

→ 3¹⁰ / 3 -²

Now we will use the first formula stated above . That will Result the exponent into , 10 - (-2) = 10 + 2 = 12 . Hence ,

²

Hence the required answer is ² .

Awnser this or ur gay

Answers

Answer:

The slope is 1

Step-by-step explanation:

What if I am gay????????????????????

One popular fast-food chain ordered (a) 2,400,000 slices of cheese last year. In December, the chain reached its goal of serving a total of (b) 40,000,000,000 cheeseburgers since opening. This was enough cheeseburgers to make a stack (c) 473,500 miles high. Also, the number of shakes served last year could have filled (d) 1,200 swimming pools.

Answers

Answer:

a. Two million, four hundred thousand

b. Forty billion

c. Four hundred seventy three thousand, five hundred

d. One thousand two hundred

Step-by-step explanation:

To Write the word names for each of the numerals

a. 2,400,000=Two million, four hundred thousand

b.40,000,000,000=Forty billion

c.473,500= Four hundred seventy three thousand, five hundred

d. 1,200=One thousand two hundred

Therefore the word names for each of the numerals will be:

a. Two million, four hundred thousand

b. Forty billion

c. Four hundred seventy three thousand, five hundred

d. One thousand two hundred

Antoine works in a restaurant and he is paid his regular hourly rate of 40 hours a week and time and a half for all hours over 40 in that week. If the rate is $14/h and he works 47 hours calculate the total pay.

Answers

560+ 147= 707

14(40)= 560
14+ 14(1/2)=21
21(7)= 147

A group of students must collect at least $120 to Organize a science fair they already have collected $30 which graph best represents all the remaining amount of money in dollars the student should still collect to organize the science fair

Answers

Answer:

the second one

Step-by-step explanation:

The second one is correct 120-30=90

{3х + 4y = 6
{7х + 8y = 10​

Answers

(-2,3) or x = -2, y = 3

Rewrite the formula for the circumference
of a circle, C = 2πr in terms of its
diameter d.

Answers

Answer:

C = (pi)d

Step-by-step explanation:

hope this helps!! BAD BUNNY IS COMING

have a nice day:)

Answer:

diameter of circle=2radius

circumference of a circle =2πr

=(2r)(π)

=dπ unit

can someone please pls help me

Answers

I would assume it would be C.
The answer should be C

Kathy only answered 3/4 of the questions on her exam. She got 5/6 of the questions she answered correct. What portion of the questions did Kathy get correct?
A. 9/10
B. 39/20
C. 5/12
D. 5/8

As fast as possible please

Answers

Answer:

5/8

Step-by-step explanation:

Would explain but you said as fast as possible.

The answer to the question is 5/8
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