Mathematics High School

What number would you add to both sides of x2 + 7x = 4 to complete the square?
2^2
7^2
7^2/2
(7/2)^2

Answers

Answer 1

Answer:

(7/2)2

Step-by-step explanation:

Related Questions

Of the students at Milton Middle School, 88 are girls. If 40% of the students are girls, how many total students are there at Milton Middle school?

Answers

Answer:

220

Step-by-step explanation:

To find these types of answers use a calculator my friend. 'Tis so easy, just do

*88/.4 = 220

*must divide to multiply and 44% = .44 =)

Myka bought a shirt that was originally priced at $40 and on sale for $34. What was the percent discount?

Answers

She bought it at a 15% discount because 15 percent of 40 is 6 and 40-6=34

Can someone please be a hero and help me on this please.

Answers

Answer:

The answer is C

Step-by-step explanation:

Solve u2 =81 , where u is a real number show steps

Answers

Hey there! [tex]\bold{u^2=81}[/tex]Take your SQUARE ROOT[tex]\bold{New\ equation: x\pm \sqrt{81}}\\ \\ \bold{\sqrt{81}=9}\\ \\ \bold{-\sqrt{-81}=-9}\\ \\ \\ \\ \boxed{\boxed{\bold{Answer: x=-9\ or\ x =9}}}\huge\checkmark[/tex]Good luck on your assignment and enjoy your day!~[tex]\frak{LoveYourselfFirst:)}[/tex]

Determine whether the ordered pair is a solution of y=4x+3 (0,3)

Answers

Answer:

yes it is     3=4x0 +3

Step-by-step explanation:

1. y = 3x - 3 slope = y-intercept = У 4 2 x -4 -2 O 2 4 -2 -4​

Answers

Answer:

the slope is 3 and the y is -3

Step-by-step explanation:

3x= 3/1

3/1=rise/run

Help me out , I gave out Brainliest

Answers

Answer:

3x-7y=-3

hope this helps!!:)

Step-by-step explanation:

Which of the following is a true statement about the equation...?
y = -x + 10
A.The graph of the equation for would pass through the origin.
B. The slope is 10
C. The slope is -7/8
D. The equation represents a proportional relationship.

Answers

The correct answer is -7/8

I used a calculator

Suppose that 32% of people have a dog, 28% of people have a cat, and 23% of people own both.
What is the probability that someone owns a dog or a cat?

Answers

Answer:

37%

Step-by-step explanation:

Use the general addition rule for any two events:

(32 + 28) - 23

60 - 23

= 37

So, the probability that someone has a dog or cat is 37%

Answer:

37%

Step-by-step explanation:

32 + 28 = 60

60 - 23 = 37

Given m|n, find the value of x and y.

Answers

We know that m ║ n.

Let's first find the value 'x'.

When two lines are parallel, and a transversal is drawn, the angles on the same side of the transversal are equivalent.

This means that (5x + 16)° and (7x + 4)° are equivalent.

Equating them,

5x + 16 = 7x + 4

16 - 4 = 7x - 5x

12 = 2x

x = 12/2

x = 6°

Since we know the value of 'x', let's substitute them into the angles and find out the actual measurements.

5x + 16 = 5 × 6 + 16 = 30 + 16 = 46°.

7x + 4 = 7 × 6 + 4 = 42 + 4 = 46°.

Now let's find the value of 'y'.

If you observe carefully, (7x + 4)° and (y + 6)° form a linear pair.

This means that both those angles should add upto 180°.

Using that theory, the following equation can be framed:

(y + 6)°+ (7x + 4)° = 180°

Since we know the actual value of (7x + 4)°, let's substitute that value and move ahead.

(y + 6)° + 46° = 180°

y + 6 + 46° = 180

y + 52° = 180°

y = 180° - 52°

y = 128°

Therefore, the values of 'x' and 'y' are 46° and 128° respectively.

Hope it helps. :)

please help me i'm DESPERATE!!

Answers

For f(x) plug in the number given into the x value of the equation. As an example A would be

f(-6) = 1 - 5 (-6)

Simplify: f(-6) = 1 - (-30)

Solve: f(-6) = 31

HELPPPP!!!! ASAPPPPPPP!!!!

The elimination method is used in place over substitution when one equation is not easily solved for ______________ variable.
a single
an independent
a standard
a dependent

Answers

I really hope I get it right but "a single" sounds more right

Answer:

a single

Step-by-step explanation:

when one equation is not easily solved for a single variable

Hell me please 1 isnt right

Answers

Step-by-step explanation:

I got this much.....

I am sorry of it gets wrong

Answer:

2,040

Step-by-step explanation:

That's what the calculator said (￣▽￣)"

Express (x+7)^2(x+7)^2 as a trinomial in standard form.

Answers

Answer:

Answer: x^2 +14x+49

Step-by-step explanation:

Tim's house has a taxable value of $ 149 , 000 . Tim's property tax rate is 0.28 % . How much will Tim have to pay in property taxes?

Answers

Answer:

$41,720

Step-by-step explanation:

A bottle contains 2/6 liters of soda. Ann has 12 of these bottles.
How much soda does she have in all? write in simplest form

Answers

Answer:

4 liters

Step-by-step explanation:

simplify 2/6 = 1/3

Multiply 1/3 times the 12 bottles

1/3 * 12

12/3

Simplify

4

Answer:

4 liters of soda.

Step-by-step explanation:

2/6⋅12=24/6

24/6=4

Therefore, your answer is 4 liters.

Find the equation of a line that is perpendicular to line g that contains (P, Q). coordinate plane with line g that passes through the points negative 2 comma 6 and negative 3 comma 2

Answers

Answer:A

Step-by-step explanation:I took the test already trust me

please help ill give branliest!!!!!!!!!!! :(

Answers

Answer:

The answer is C if i get it wrong then who ever gave you that is oof

Step-by-step explanation:

What is the value of x?
a. 2 /29
b. 3 /61
c. 2/ 101
d. 2/333

Answers

Answer:

2√133

Step-by-step explanation:

a²+b²=c²

8²+12²=c²

c²=208

208+18²=532

√532=23

Plz solve at least one of the questions will mark brainliest

Answers

Answer:

The 6x6 cube is 1/4 the area of the 12x12 cube.

100%=$1,636,364 (Rounded to the dollar)

Step-by-step explanation:

6x6=36

12x12=144

36/144=1/4

_____________________

20%=?

25%=?

Remainder (55%=$900,000) so:

100%=$900,000/.55

100%=$1,636,364

Which represents the area of the shaded region? a Area of circle - area of the square - area of a triangle b Area of a triangle-Area of the square + Area of a circle c Area of a triangle + Area of the square + Area of the circle d Area of the circle - Area of the triangle + Area of the square

Answers

Answer:

D: area of the circle-area of the triangle+ area of the square

Step-by-step explanation:

good luck!

Answer:

d

Step-by-step explanation:

The height above the ground of a calculator dropped off a desk can be represented as a quadratic function. The calculator reached 2.84 feet after 0.1 seconds, 2.36 feet after 0.2 seconds, and 1.56 feet after 0.3 seconds. Use quadratic regression to write a model representing the height of the calculator above the ground during its fall.

Answers

Answer:

The answer is B

Step-by-step explanation:

Per Article IV, Section 5 of the Florida state constitution, candidates for state governor must have been a resident of the state of Florida for at least seven years and be at least how many years old?

Answers

They must be at least 30 years old.

y is directly proportional to x 2 . If y = 8 when x = 2 find y when x = 3


Someone help will give you 5star and brainliest

Answers

Answer:

We know that if

          y ∝ x²

∴ y = k · x²

Now  

y = 8   , x = 4

From above y = k · x²

⇒ 8 = k · 4²

∴ k = 1/2

Again ....

x = 5  , y = ?

y = k·x²

y = 1/2 × 5²

 = 25/2 = 12.5

Step-by-step explanation:

Select all that are correct:
___· ___ = (-48)
6 and 8
6 and -8
-6 and 8
-6 and -8
none of the above

Answers

Answer:

6 and -8

-6 and 8

Step-by-step explanation:

___· ___ = (-48)

Is the same as:

___· ___ = -48

A positive number multiplied by a negative number has a negative product.

P * N = N

Two positive numbers and two negative numbers have a positive product.

P * P = P

N * N = P

6 and -8  and -6 and 8 would be the correct answers. Again, a positive and a negative number will have a negative product.

6 * -8 = -48

-6 * 8 = -48

Hope this helps.

Three numbers are in the ratio 3:4:5. If the smallest is 2x−7, what is the product of the two other numbers?

Answers

Answer:

The product is;

(80x^2-560x+ 980)/9

Step-by-step explanation:

Here, we want to get the product of the two smaller numbers

let the mid number be y

3/4 = 2x-7/y

3y = 8x-28

y = (8x-28)/3

Let the biggest be z

3/5 = 2x-7/z

3z = 10x -35

z = (10x-35)/3

The product of the two other numbers is thus;

(10x-35)/3 * (8x-28)/3

= (10x-35)(8x-28)/9

(80x^2-280x - 280x + 980)9

= (80x^2 - 560x + 980)/9

What is the volume of a cylinder with a radius of 9 inches and a heights of 2 inches? Use3.14 for pi. Round your answer to the nearest hundredth

Answers

Answer: 508.68 inches

Step-by-step explanation:

The volume of a cylinder is written as:

= πr²h

where,

π = 3.14

r = 9

h = 2

Volume = πr²h

= 3.14 × (9²) × 2

= 3.14 × 81 × 2

= 508.68

15 cm
1
12 cm
Work out the area of the triangle.

Answers

Answer:

30cm^2

Step-by-step explanation:

area of triangle- 1/2xAxB

1/2(5x12)

0.5x60=30

11(2+3) =
I need help on this question

Answers

Answer:

55 is the answer I think so

Answer: 55

Step-by-step explanation:

Step One: Add: 2 + 3 = 5

Step Two: Multiple: 11 * the result of step No. 1 = 11 * 5 = 55

Ben is n years old.
Chloe is twice as old as Ben.
Dan is five years younger than Ben.
The total of Ben’s age, Chloe’s age and Dan’s age is T years.
(a) Find a formula for T in terms of n.

Answers

Answer:

T = 4x - 5

Step-by-step explanation:

Let x = Ben's age

2x = Chloe's age

x - 5 = Dan's age

Combine all the terms and simplify to form an equation.

T = 2x + x + x -5

T = 4x - 5

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