Mathematics High School

When you have no clue what you’re doing

Answers

Answer 1

Answer:

25y^2 -20iy + 4i^2

Step-by-step explanation:

Theres an acronymn called Foil (first, ouside, inside, last) for expanding an expression like that

For this expression:

= (5y - 2i) (5y - 2i)

= 25y^2 - 10iy - 10iy + 4i^2

= 25y^2 -20iy + 4i^2

This is assuming that "i" is not the imaginary number "i"

Related Questions

pls help (15 pts)
whats the value of p

Answers

I think p will 2 is this 8th grade math ?

Marta received $5 for helping her dad in the back yard. She spent $2.40 on drinks and $1.33 on snacks. A)Write an equation to show how much money she has left. Remember to define your unknown. B)Solve the equation from part (a). Show your work

Answers

Answer:

5-( 2.40+1.33 )= $1.27

Step-by-step explanation:

If you add $2.40 to $1.33 you get $3.73, the total amount of money she spent on drinks and snacks. Then you would need to subtract $3.73 from $5.00, which is $1.27.

I hope this helps!

A space probe is launched from a platform that is just above 100 meters below sea level. The probe is expected to travel into deep space indefinitely. Write an equality showing the altitude of the probe after it is launched.

Answers

Answer:

x ≤ ∞

Step-by-step explanation:

Let x represent the height of the space probe above sea level in meters.

Initially, before launch, the space probe is launched from a platform that is just above 100 meters below sea level, hence:

x < -100 (the negative sign shows that it is below sea level).

After launch, The probe is expected to travel into deep space indefinitely. Therefore the height of the probe after it is launched is represented by the inequality:

x ≤ ∞

Pls help I dont under stand this at all

Answers

Answer:

0.5 = 0.25

1=2

2=4

2.5=5

3=6

Step-by-step explanation:

distance divided by 2 equals the time

i hope this helps!

Carmen got a puppy for her birthday. Her mom wants it kept outside when the weather
is nice, so Carmen has decided to fence a rectangular area 9 feet long by 6 feet wide for
the puppy to play in. How many feet of fence does Carmen need?

Answers

Answer:

54ft of fence for the PUPPY

Step-by-step explanation:

z+ 3/2 = 0
what do i do next .?

Answers

Step-by-step explanation:

z+3/2=0

find the LCM of z +3/2

2z+3/2=0

cross multiply

0=2z+3

-3=2z

z=-3/2

z=-1.5

20 point question pls help

Answers

Answer: y = -1/3x - 1

Step-by-step explanation:

Slope-intercept = y = Mx + b

M = slope

B= y

i dont know this one help needed thanks.

Answers

Answer:

B- 27/9

Step-by-step explanation:

What is the answer 2(9-6)^2/18

Answers

Answer:

Step-by-step explanation:

So just follow order of operations

9-6=3

3^2=9

9*2=18

18/18=1

Final answer is 1

Rectangle ABCD has points at A (4, −2), B(4, 4), C(8, 4), and D(8, −2). After undergoing a transformation, its new points are A'(2, −1), B'(2, 2), C'(4, 2), and D (4, −1). Is the new figure congruent to the old figure? Why or why not?

Answers

Answer:

The new figure is not congruent with the old figure. They are similar

Step-by-step explanation:

Transformations

We are given the vertices of rectangle ABCD and the vertices of rectangle A'B'C'D'.

It can be clearly noted all the coordinates of the second rectangle are half the value of the coordinates of the first rectangle.

This type of transformation corresponds to a dilation across the origin with a scale factor of 1/2.

Since the transformed rectangle is smaller than the first one, it cannot be congruent with it.

But since all the dimensions of this smaller rectangle are proportional to those of the bigger rectangle, they are similar.

Help I only got a limited time

Answers

Answer:

Red

Step-by-step explanation:

Y intercept is 1

Slope is -2 (line is going down so the slope is negative)

Answer:

the yellow box

Step-by-step explanation:

Help me plzzz I don’t understand this

Answers

The correct justification is to multiply each side by -3 where W= -18

Find the value of x.
(Reposted)

Answers

Answer:

one circle has a total angle of 360. Hence, 360-101= 3x+2+x-35

259=4x-33

292=4x

x=73 degrees

In ΔHIJ, h = 450 cm, i = 210 cm and j=640 cm. Find the measure of ∠I to the nearest degree.

Answers

Answer:

Step-by-step explanation:

The measure of an angle∠I is 10 degrees between the 450 cm and 640 cm sides.

What is the Cosine Rule?

The Law of Cosines (also called the Cosine Rule) is defined as it relates all three sides of a triangle with an angle of a triangle.

c² = a² + b² − 2ab cos(C)

The cosine rule, also known as the law of cosines, relates all 3 sides of a triangle with an angle of a triangle. it relates the lengths of the sides of a triangle to the cosine of one of its angles.

In the given triangle ΔHIJ,

Sides:

h = 450 m

i = 210 m

j = 640 m

The angle of ∠I is 10 degrees between the 450 cm and 640 cm sides.

According to the cosine rule,

j² = h² + i² − 2ab cos(I)

Substitute the values in the Cosine Rule,

450² = 210² + 640² - 2(210)(640)cos(I)

After solving we get the value of angle ∠I :

∠I = 9.56038°

Rounded to the nearest degree.

∠I = 10°

Thus, the measure of an angle∠I is 10 degrees.

Learn more the cosine rule here:

https://brainly.com/question/29717637

#SPJ2

Which polynomial can be factored using the binomial theorem?

100x2 + 70x + 49
100x2 + 210x + 49
1,000x3 – 2,100x2 + 1,470x – 343
1,000x3 – 2,800x2 + 1,960x – 343

Answers

Answer:C

Step-by-step explanation:

The polynomial can be factored using the binomial theorem is

1,000x³ – 2,100x² + 1,470x – 343.

What is Binomial Theorem?

Assertion that the sum of the nth power of the product of two positive integers a and b may be written as the sum of the n + 1 terms of the form for any positive integer n.

If a and b are real numbers and n is a positive integer, then

[tex](a + b)^n =^nC_0 a_n + ^nC_1 a_{n-1} b_1 + ^nC_2 a_{n-2} b_2 + ... 1.[/tex]

Given:

Using Binomial we can write

(a+ b)³ = a³ + b³ + 3a²b + 3ab²

and, (a+ b)² = a² + 2ab + b²

So, 100x²+ 70x + 49 and 100x² + 210x + 49 cannot be factors using Binomial Theorem because the correct expansion would be

(10x+ 7)² = 100x² + 140x + 49

and, 1,000x³ – 2,100x² + 1,470x – 343 can be factored using Binomial theorem.

As, (10x - 7)³ = 1000x³ -2100x² + 1470x - 343.

Learn more about Binomial theorem here:

https://brainly.com/question/27813780

#SPJ6

Rafael said 5 equals – 5. Is Rafael correct? Use the number line and words to support your answer.

Answers

Answer: Rafael is incorrect

Step-by-step explanation: 5 is not equal to -5. It is the additive inverse, or negative reciprocal.

Answer:

No he is not because 5=5 when talking about absolute value I think sorry I couldn't show the number line

Step-by-step explanation:

Solve problem in photo (8th math)

Answers

A hrhehrhrjrhrrhndndjd

How would you use a table to graph –3x + 4y = 23?

Answers

Answer: you would look for y and then once you have y you put it into desemos which is a graphing app and then you get your line

Step-by-step explanation: you would do +3x on both sides with out doing it to the 4y and the. You would get 4y =23+3x and then you divide everything by 4 even the 4y and then you would get y= 23/4 + 3/4x and then you put it into desemos and it will give you it graphed

if you scored 383 on the critical reading section on the SAT, what is your percentile

Answers

Answer:

20 percentile

Step-by-step explanation:

im sorry for your loss with your bad score.

write 132 as a product of prime factors.

Answers

Answer:

132

Step-by-step explanation:2 x 2 x 3 x 11

Estimate using mental math: 32.4970 – 4.02 what is the answer

Answers

Answer:

The estimated answer would be 8

Step-by-step explanation:

When you divide 32 by 4 the answer is 8 and so using mental math you can estimate the answer to be 8 or somewhere around it

Helpppppppppppppppppp

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

90 Degrese Rotation

Danny got 33 out of 55 questions correct on his Social Studies exam. What percent of questions did he get correct

Answers

Answer:

Step-by-step explanation:

just subtract 55-33

If 5 pounds of oranges costs $11.55, how much would it cost for 12 pounds of oranges?

Answers

Answer:

27.72

Step-by-step explanation:

Answer:

12 pounds of oranges would cost $27.72

PLEASE CHECK, THANK YOU

Me and my friends have made a you tube channel that helps you in math if you could please check it out, it is called Evimero Academy

5. There were 30
presents left on Santa's
sleigh. In an unfortunate
incident, in which
Rudolph was unavailable
to lead the sleigh on a
foggy Christmas Eve, 2/6
of the presents fell over
the side when Blitzen led
an evasive maneuver.
How many presents fell
off?

Answers

Answer:10 presents fell off

Step-by-step explanation: to find 2/6 we can start with finding 1/6 because it’s easier. To do that we divide 30 by 6 which equals 5. because 5 is 1/6 5x2 is 2/6 so the answer is 10

Answer:

you put 30 over 1 than you then you 2 over 6 then subtract then

Step-by-step explanation:

so it would look like this

30/1 - 2/6=

My last question plz help me

Answers

The answer is c I hope this helps

the answer is c i am pretty sure

Find the slope of line A2 B-2 C3 D-1

Answers

Answer:

-2

Step-by-step explanation:

The line is going down 2 over 1 making it -2/1

this becomes -2

Answer:

-2

Step-by-step explanation:

Identify the elementary row operation(s) being performed to obtain the new row-equivalent matrix. Original Matrix −1 −1 2 −1 2 −7 3 −5 4 4 −6 3 New Row-Equivalent Matrix −1 −1 2 −1 0 −9 7 −7 0 0 2 −1

Answers

Answer:

124589l

Step-by-step explanation:

Nası ndsl merhaba hocam nasılsınız merhaba canım nasılsın merhaba canım benim ya da arama yapmayınız nasılsın bir yöntem olup olmadığını düşünelim sırasıyla görüşmek dileğiyle iyi geceler tatlı uykular haram olsun

PLEASEE HELP AND SHOW WORK IF YOU CAN

Answers

Answer:

M=54.62

O=59.69

N=65.68

Step-by-step explanation:

M is the smallest, and N is the largest:)

you can use cossincalc . com !!

If f(x) = -7x+1 and g(x) = -5x+3, what is (f+g)(x)?

Answers

Answer:

-12x + 4

Step-by-step explanation:

Just write the givens like this f(x) + g(x)

f(x) + g(x) = -7x + 1 + - 5x + 3

f(x) + g(x) = - 7x + 1 - 5x + 3

f(x) + g(x) = - 12x + 4

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