Mathematics High School

MathWiz wya? I need some help with this...show your work <3

MathWiz Wya? I Need Some Help With This...show Your Work &lt;3

Answers

Answer 1

Answer:

1) -15+8i

2) x^2+2x-5

Step-by-step explanation:

1) apply perfect square formula

(4i)^2+2*4i1+1^2

then simplify

2)remove parentheses

x+1+(x-2)(x+3)

expand (x-2)(x+3)

x+1+x^2+x-6

simplify x+1+x^2-6 = x^2+2x-5

Related Questions

A bakery can make 56 cheesecakes for every 8 blocks of cream cheese. Which table represents the relationship between the number of cheesecakes the bakery makes and the number of blocks of cream cheese the bakery uses?

Answers

the answer is d because it take 7 blocks of cream cheese to make 1 cheesecake.

Answer:

c

Step-by-step explanation:

I have done this on delta math too and it is C

Amy has 3 yards of fabric. She needs to cut the fabric into 6 equal pieces.
How many yards long should each piece of fabric be? *

Answers

Answer: that would 0.5 yards!

Step-by-step explanation:

It’s pretty simple since 3 is half of 6. All you would to do is divide one yard by two, which would get you 0.5 yards, i hope this helps. <3

Can someone help me pls

Answers

Answer:

x ≈ 16.6 units

Step-by-step explanation:

The angle between a tangent and the radius at the point of contact is 90° , so

Δ ABC is a right triangle at ∠ B

Using Pythagoras' identity in the right triangle

x² + 7² = 18²

x² + 49 = 324 ( subtract 49 from both sides )

x² = 275 ( take the square root of both sides )

x = [tex]\sqrt{275}[/tex] ≈ 16.6 ( to the nearest tenth )

The expression 2(l + w) is used to calculate the perimeter of a rectangle, where l is length and w is width. If the length is Fraction 2 over 3 unit and the width is Fraction 1 over 3 unit, what is the perimeter of the rectangle in units? (3 points)

Answers

Answer:

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

2[2\3±1\3]

2×2\3=4\3

2×1\3=2\3

4\3±2\3=6\3

6\3 is the same as 2 because if you divide 6 by 2 you will get 2

so the answer is 2

HELP DUE IN 2 MINUTES

Answers

Answer:

6

Step-by-step explanation:

add them all together which will get you 24

then divide by the number of months

24/4=6

What is the exponential regression equation that fits these data?

Answers

what you need to do is plug in the X-imput into the exponential slot that has the tiny X.

your answer is "C"

thanks! :)

Answer:

D.

Step-by-step explanation:

The "middle" term of a trinomial form of (3x+1)(x-4) is:

Answers

Answer:

Expand the following expression

(3x+1)(x-4) = 3x^2-12x+x-4

middle term = -11x

Divide. Write the answer as a mixed number in simplest form.

4879 ÷ 200 =

Answers

24.395 hope this helps :)

Answer:

24 79/200

Step-by-step explanation:

please help with Fractions

Answers

Answer:

1/9 and 1/10 are smaller than 1/8 but the smallest is 1/10

Pleaseee I needddd helppp

Answers

Answer:

car b has a steeper slope tho... so it's car b

Somebody please help me! Question is due in 11 minutes!

Answers

Answer:

Step-by-step explanation:

y=5x+2
4x−y=0
​

Is (2,12) a solution of the system?

Answers

Answer:

no the solution would be (-2, -8)

Step-by-step explanation:

i graphed both of the equations and found the solution <33

Answer:

(-2,-8) is correct

Step-by-step explanation:

4x = y

5x +2 = y

4x = 5x +2

-2 = x

y = 5×-2 + 2

=-8

( x , y )

please help with my math look at picture

Answers

2 bags of chips cost $3.70.

Step by Step Explanation:

You must divide 5.55 by 3, and that’s where you find the cost of one, which is $1.85. Multiply 1.85 by 2 to find your answer.

Answer:

i think b

Step-by-step explanation:

3 bags = 5.55, divide that and youll get 1.85 then take 1.85 times 2 for two bags of chips and you will end up with B - 3.70

Help please
There are two consecutive even integers. The square of the larger one is three hundred eight more than the smaller one. Which of the following equations could you use to find the smaller integer?
A. (x + 2)2 - 308 = x
B. (x + 2)2 + 308 = x
C. (x + 1)2 + 308 = x
D. (x + 1)2 = x - 308
E. (x + 1)2 - 308 = x
F. (x + 2)2= x - 308

Answers

Answer:

A.( The option a is correct

PLEASE HELPP
Solve d.
d ÷ 5/6 = 3/4
Write your answer as a fraction or as a whole or mixed number.

d =

Answers

Answer:

d = 9/10

Step-by-step explanation:

Hi,

d divided by 5/6 = 3/4

You can't divide fractions, instead, you flip the fraction and multiply. So, in this case, you would flip 5/6 to get 6/5 and multiply it by 3/4 to get d.

d ÷ 5/6 = 3/4

Multiply both sides by 6/5 (remember to flip)

d = 3/4 x 6/5

(when multiplying fractions, you can multiply straight across)

d = 18/20

(simplify - both numbers can be divided by 2)

d = 9/10

Hope this helps :)

Answer:

d = 5/8

Step-by-step explanation:

Mulitply by the reciprocal

= d x 6/5 = 3/4

Reorder the terms

=6/5d = 3/4

Multiply both sides

Solution

d = 5/8

Alternate form

d = 0.625

solve:6g=2
11 5
those are fractions btw
what is g?​

Answers

G is apart of the equation

a model house has a scale of 1 cm to 3 meters.If the model house 5cm,then how is tall is the house.

Answers

Answer:

15m

Step-by-step explanation:

1cm=3m

5cm is equal to 15m

What is the square root of 216

Answers

Answer:

14.69...

Step-by-step explanation:

[tex]\sqrt{216} = 14.69...[/tex]

Evaluate 9 ÷ 3[(18 − 10) − 22].

Answers

Answer:

-42

Step-by-step explanation:

Help please!!!!!!!!!!!!!

Answers

Answer:

B

Step-by-step explanation:

.99n + 19.99

2 songs

.99(2) + 19.99

1.98 + 19.99 = 21.97

which three sides best describe the triangle in the diagram?

Answers

The answer is A. 6cm 6cm and 8cm


6. When solving for the value of x in the equation, Martha wrote the following lines on the board.

Step 1 4(x - 1) + 3 = 18
Step 2 4(x - 1) = 15
Step 3 4x - 1 = 15
Step 4 4x = 16
Step 5 x = 4

Which property was used incorrectly when going from Step 2 to Step 3?

a. Addition Property of Equality
b. Distributive Property of Equality
c. Substitution Property of Equality
d. Transitive Property of Equality

Answers

Byvyvybybtbybybybybybybybybybybyb

Answer:

The distributive property is used incorrectly

Step-by-step explanation:

Step 2 should be: 4x-4=15

4x= 19

x=4 3/4 or 19/4

check work by substituting answer for x

4(19/4-1) + 3 = 18

19-4+3=18

18=18

I will give you brainliest! Please help me

Answers

Answer:

A) 7x^5 + 2x^2 + 6

Step-by-step explanation:

I hope this helps.

Answer:

The answer is A

[tex](2+7n- 4n^{2}) + (6-2n^{2}-6n)[/tex] what is this eqiuvilent to

Answers

Answer:

omg there's letters in math

Step-by-step explanation:

2n squared + n +8...I think this is the answer :)

I need help on this question:
Name two examples of the three-dimensional figure describe.
Two parallel, congruent sides
The second question (this is the same for number 1)
One base

Answers

Answer:

ehwrjhq

Step-by-step explanation:pwjhreijwhribhbhrtu4i3r3

I need help finding the slope!

Answers

Answer:

2

Step-by-step explanation:

rise/run

or change y/change x

so 4/2

Alexa, Clara, and Adrian are working on a project.
They want to know who types the fastest so that
person can type the report. The equation y = 32x
models the total number of words Alexa can type,
where y is the number of words typed and x is the
time in minutes. The table shows the relationship
between words typed and minutes for Clara. The
graph shows the relationship for Adrian. Who
tynes the fastest?
Who types the fastest?
O A. Clara types the fastest.
OB. Adrian types the fastest.
OC. Alexa types the fastest.
OD. They all type equally fast.

Answers

D they all type fast

Answer:

D: they all type equally fast

Step-by-step explanation:

Solve for x.
2x-14y= -32
Please can someone help me !!!!

Answers

Answer:

x = 7y - 16

Step-by-step explanation:

First, isolate x by adding 14y to both sides:

2x - 14y = -32

2x = 14y - 32

Now, divide each side by 2:

x = 7y - 16

So, x = 7y - 16

Answer:

x=-16+7y

Step-by-step explanation:

2x-14y=-32move the varIables to the right and change its sign2x=-32+14ydivide both sides of the equation by 2x=-16+7y

Julie walks 10 dogs a week and gets paid $4.25 for each dog. How much money does
she make in one week?

Answers

Answer: 10 * 4.25=  $42.5 per week

Step-by-step explanation:

Answer:

4.25

Step-by-step explanation:

4.25x 10 1 =4.25

7x - 4y = -5 ordered pair

Answers

Answer:

Step-by-step explanation:

You may invent a value for x, substitute that value into the given equation and thereby calculate y:

If 7x - 4y = -5 and x = 0, then -4y = -5 and y = 5/4.  The corresponding ordered pair is (0, 5/4).  Other x values may be chosen at random and the same operations performed so as to find other possible ordered pairs corresponding to 7x -4y = 5.

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