solve the following quadratic equation by completing the square. if you need to round to the nearest tenth. x² - 20x = -75

Answers

Answer 1
The Answer should be either x=15 or x=5 I got both.

Related Questions

Richard measured the auditorium and made a scale drawing. The scale of the
drawing was 0.5 inch : 4 feet. If the stage is 11 inches in the drawing, how
long is the actual stage?

Answers

Answer:

oml yall really on here

Step-by-step explanation:ion know do you homework

HELP PLS 40 points!!?????!?????????

Answers

Answer:

no clue

Step-by-step explanation:

very sorry

im in 5th grade

im only in 5th grade aswell *-*

thank you so much for free points<3!!!!

Sarah drove 40 miles per hour. In 3 hours, Sarah drove 120 miles. Which is a valid proportion to represent this description?

Answers

Answer:

A

Step-by-step explanation:

miles over hours

40 over 1

120 over 3

Almee is decorating her new house. she found a table at pier one for $425. If the table is 25% off, what will it cost

Answers

Answer:

$318.75

Step-by-step explanation:

425*0.25=106.25         425-106.25=318.75

318.4 dollars so there’s the answer

which mathematical property is shown here
6*1=6
1 identity property of muliplication
2 inverse property
3 distributive

Answers

Identity property of multiplication is shown

A number y minus 12 is no more than −32.

The inequality is

Answers

Answer:

y-12<-32

Step-by-step explanation:

just remember to underline the less than sign

Statement: If 3x = 6, then x = 2. What is the contrapositive of the statement? Emeans not equal​

Answers

Answer:

x=2

Step-by-step explanation:

you are correct for x=2 because 6 divided by 3 is 2

write a problem that represents "7+-7" ​​

Answers

Answer:

The fish jumped 7 inches from the sea then fell 7 inches down.

Step-by-step explanation:

Answer:

7-7

Step-by-step explanation:

7 adding a negative number means it is subtracting because you are taking away from the 7.

Find the value of a3 + 3b2 when a = 2 and b = -2

Answers

Given:

a = 2 and b = -2.

To find:

The value of [tex]a^3+3b^2[/tex].

Solution:

We need to find the value of expression [tex]a^3+3b^2[/tex] at a = 2 and b = -2.

Substituting a = 2 and b=-2 in [tex]a^3+3b^2[/tex], we get

[tex](2)^3+3(-2)^2[/tex]

[tex]=8+3(4)[/tex]

[tex]=8+12[/tex]

[tex]=20[/tex]

Therefore, the value of expression [tex]a^3+3b^2[/tex] at a = 2 and b = -2 is 20.

Heyyyyy ah ha ha ‍ help I’m begging please someone god bless

Answers

Answer:

Step-by-step explanation:

Domain of a function is a set of x-values (input values) for which the function is defined.

Range of a function is a set of y-values (output values) for the given set of input values.

7). Domain → (-∞, ∞)

    Range → (-∞, ∞)

8). Domain → (-∞, ∞)

    Range → [-2, ∞)

9). Domain → [-2, 2]

    Range → [-3, 3]

10). Domain → (-∞, ∞)

    Range → [-1, 1]

Erica sells magazine subscriptions and makes a flat rate of $5.35 for each subscription she sells. If Erica made $42.80 on Monday, $64.20 on Tuesday and $74.90 on Wednesday, how many subscriptions did she sell in the three days

Answers

to find the number of subscribtion sold we divide the money she made by the price of subscription

monday:

42.80/5.35=8 subscriptions sold

tuesday:

64.20/5.35=12 subscriptions sold

wednesday:

74.90/5.35=14 subscriptions sold

8+12+14=34 subscriptions sold in 3 days

Answer:

34 subscriptions she sold

Sino may Alam dito pasagot Naman po please​

Answers

Answer:

Sorry i dont understand japanese... sorry;-;

Step-by-step explanation:

What is 40% of 160???

Answers

40% of 160 is 65
Hope this helps :D

Answer:

64

Step-by-step explanation:

If the temperature outside increases by 3 1/2 degrees every 1 1/2 hours, by how much will the temperature increase after 4 hours?

please answer in fractions.

Part 1:

What is the rate per hour of the temperature increase?

Part 2:

How much will the temperature increase after 4 hours?

Answers

Answer:

Part 1:    7/3 degrees/hour

Part 2:    28/3 degrees

Step-by-step explanation:

Part 1:

3 1/2 degrees per 1 1/2 hours =

= (3 1/2)/(1 1/2)

= (7/2) / (3/2)

= 7/2 * 2/3

= 7/3 degrees/hour

The rate is 7/3 degree per hour

Part 2:

In 4 hours, the temperature goes up 4 times what it goes up in 1 hour.

4 hours * 7/3 degree/hour = 28/3 degrees

Super Salad Dressing is made with 8mL of oil for every 3mL of vinegar.
Which of the following mixtures will taste the same as Super Salad Dressing?
Group of answer choices

3 mL of oil for every 8 mL of vinegar

16 mL of oil for every 9 mL of vinegar

40mL of oil for every 25mL of vinegar

56 mL of oil for every 21 mL of vinegar

Answers

Answer:

56mL of oil for every 21mL of vineger

Step-by-step explanation:

56 is a multiple of 8, and 21 is a multiple of 3. 7 times 3 is 21, and 8 times 7 is 56. Hope this helped!

Plz HeLp MeEeEeEe...............

Answers

Answer:

14.25

Step-by-step explanation:

Answer:

Step-by-step explanation:

The mean is 3.5

Sheryl has a basket of ripe apples and peaches. The number of apples in the basket is 12 more than twice the number of peaches. If there are
36 apples in the basket, there are
peaches in the basket.
I need help TwT

Answers

Answer=12

Step-by-step explanation:

well if there are 36 apples and there are 12 more apples then peaches then 36-12= 24 24/2=12  

PLEASE HURRY I HAVE A LITTLE BIT OF TIME TO TURN IT IN

when is Ann's distance from home staying the same? give a reason to support your answer

Answers

Answer:

4.25-5 minutes

Step-by-step explanation:

Its shown in the graph and table that the speed was 0 between those times.

Alexander was hopelessly lost. This new campus was 10 times bigger than his last school had been. He had no idea how to get back to his classroom. All the doors to all of the classrooms looked the same. Here he was staring down this endless corridor, hoping that someone would come along, so he could inquire where he needed to go.

Use the context clues to find the definition for the word inquire as it is used in this paragraph.

to shout
to ask
to help
to wonder

Answers

Answer:

to ask

Step-by-step explanation:

Which statement about the ratios 15/18 and 18/27 is true?

A.The ratios are proportional because they simplify to the same ratio.
B.The ratios are proportional because they both contain the number 8.
C.The ratios are not proportional because they do not have the same denominator.
D.The ratios are not proportional because they do not simplify to the same ratio.

Answers

Answer:

C

Step-by-step explanation:

brainliest pls

Answer:

D

Step-by-step explanation:

the answer is D beacuse if expressed as ratios the would not be simplified or reduced to the same lowest form

Graph y=x+4,

I just need assistance on how i get the answer and the answer aswell

Answers

Answer is the graph that is being shown

6.
X-4y=8
Find the slope.
a) -1/4
b) 1/4
C) -4
d) 4.

Answers

Answer:

B. 1/4

Step-by-step explanation:

Please answer ASAP!

How many different arrangements of the letters of the word SCIENCE
have N as their first letter and S as their last?

Answers

Ignore this post, I have no Idea what it is, report this so it gets taken down so someone else can answer...

A right triangle has a leg lengths of 9 units and 12 units. Write an equation that can be used to determine the length of the hypotenuse, c.

Answers

Answer:

a^2+b^2=c^2

c=15 units

Step-by-step explanation:

You can use the pythagorean theorem to solve this equation. a^2+b^2=c^2.

If you substitute the leg lengths in, the new equation will be 9^2+12^2=c^2, c being the hypotenuse.

Next, you can simplify it to get 81+144=c^2. Simplifying it further, you get 225=c^2, which means that the length of the hypotenuse is 15. Hope this helped! :)

Answer:

15

Step-by-step explanation:

9^2+12^2=c^2

81+144=c^2

225=c^2

15=c

or you can see that this is a 3,4,5 triangle (just 3 times bigger)

hope this helps :)

Please help me with circle theorems

Answers

Answer:

x = 38°, y = 68°, z = 55°

Step-by-step explanation:

This would be easier to explain if the vertices were labelled , however

Angles at the circumference of the circle subtended on the same arc are congruent.

x and 38 are subtended on the same arc

y and 68 are subtended on the same arc

z and 55 are subtended on the same arc

Thus

x = 38°, y = 68° and z = 55°

A television is on sale for 20% off its original price,p. Write a multiplication expression to
describe the sale price of the television.
A. 0.20p
C. 0.20p + P
D. p-0.20p
B. 0.20p-p

Answers

sale price of the television is c

5X + 2 = 12 two step eqation can someone help

Answers

The answer for X is X=2

5x+2=12
5x=10
X=2

what's the answer to the question?
I have a heart that never beats, I have a home but never sleep, I can take a man's house and build on others, and I like to play games with my mini brothers. I am a king among fools. who am i?

Answers

The king of hearts in cards

In AJKL, if m2 J = 90°, then K and j are
A) Complementary
O B) Congruent
O C) Obtuse
OD) Right

Answers

You should have put a picture so we could see the graph

how many ventices are there in a cuboid

Answers

8

Step-by-step explanation:

By Euler's formula the numbers of faces F, of vertices V, and of edges E of any convex polyhedron are related by the formula F + V = E + 2. In the case of a cuboid this gives 6 + 8 = 12 + 2; that is, like a cube, a cuboid has 6 faces, 8 vertices, and 12 edges.

Answer:

there are 8 6+8=12+2 vertices, and 12 edges

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