Can someone please help me thanks

Answer:

Perimeter: 52 Area: 181-16i?

Step-by-step explanation:

Perimeter

The formula for perimeter is 2l+2w, so you plug in the binomials they give you:

2(11-4i)+2(15+4i)

expand:

22-8i+30+8i

combine like terms (which cancels out 8i and -8i):

22+30=52

Area

"i" is not a real number and thus should not be part of the area here, meaning this answer as it is is wrong and I don't know how one would change that.

Here's what I did to get 181-16i, in any case:

The formula for area is l*w, so I plugged in the numbers:

(11-4i)(15+4i)

expanded:

165+44i-60i-16i*i

and combined like terms:

181-16i

*i is [tex]\sqrt{-1}[/tex], so [tex]i^{2}[/tex]=-1 and -1*-16=16.

Answer:

a=2

b=0

c=12

Step-by-step explanation:

The standard form of a quadratic equation is ax²+bx+c=0

Here's the given equation:

2x²+12=0

You might notice that the term bx is not there (there is just ax² and c). That means that b is 0.

The term 2x² is the term ax² in this equation. The coefficient in the term is 2, so that means that a is 2

12 has no variable, so that means it'll be c in the equation.

Hope this helps!

Answer:

Step-by-step explanation:

7

Answer:

7

Step-by-step explanation:

3.5 divided by .5

Answer:

$30

Step-by-step explanation:

10 % of 150 is 15

20% is 30

hope this helps...

Answer:

30$

Step-by-step explanation:

To find 20% of 150$ you have to first make 20% a decimal and then multiply by 150$.

To do this:

150 (0.2) = 30

Answer:

11miles

Step-by-step explanation:

1mile≈1,61km

so 17/1,61=10,56≈11miles

Answer:

10.56 (rounded)

(whole number is 10.5633)

Step-by-step explanation:

1 kilometer = 0.62 miles (rounded)

Multiply it by 17

=10.56 (rounded)

(whole number is 10.5633)

Answer:

480

Step-by-step explanation:

12*4=48 then add a zero to the end of it

hope that helps!

happy new year!

Answer:

Lance has 480 comic books.

Step-by-step explanation:

Multiply 12 by 40:)

Answer: 20n + 5

Step-by-step explanation:

From the question, we are told that jackets cost $15 and a set of decorative buttons cost $5 and that the delivery fee is $5 per order.

The expression 15n+5n+5 gives the cost, of buying jackets with buttons for n people. The expression after combining like terms would be:

= 15n + 5n + 5

= 20n + 5

Answer:

slope = [tex]\frac{1}{3}[/tex]

Step-by-step explanation:

Calculate slope m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (0, 0) and (x₂, y₂ ) = (3, 1) ← 2 points on the line

m = [tex]\frac{1-0}{3-0}[/tex] = [tex]\frac{1}{3}[/tex]

Answer:

Tyler practiced piano = 48 minutes

Step-by-step explanation:

Missing;

Hen practiced piano = 75 minutes

Given:

Tyler practiced piano = 64 % of Hen

Find:

How long Tyler practiced

Computation:

Tyler practiced piano = 64 % of Hen

Tyler practiced piano = 64 % x 75

Tyler practiced piano = 48 minutes

Answer:

growth. 25%

decay. 25%

growth. 100%

growth. 1%

decay. 1%

Step-by-step explanation:

Hey, I'm using edmuentum too, just so you know, you only have to do the tutorials unless you get the Mastery test wrong. I normally just skip through them and just get the questions wrong since the teachers can't see your answers on the tutorials. :) Anyways the answer is:

The first is growth by 25%

The second is decay by 25%

The third is growth by 100%

The fourth is growth by 1%

The last is decay by 1%

Answer: 43 3/4

Step-by-step explanation:

Reduce means simplify

43.75= 43 75/100

you can dive each side of 75 and 100 by 5

it will get you to 43 15/20

again it is not reduced dived by five once more

it will get you to 43 3/4

Answer:

The following system of equation has no solution.

Step-by-step explanation:

since both of them are equal to y, set them equal to each other:

3x+1=3x+7

if you subtract both sides by 3x, you get 1=7. That is a contradiction, so this has no solutions.

This equation has no solution.

An inconsistent system is a system that has no solution in any case scenario.

Given this system of equations y=3x+1,  y=3x+7.

on comparing both equations multiples of x and y are equal therefore, there will be no solution for a given equation.

Learn more about the inconsistent systems here:

https://brainly.com/question/28810468

#SPJ2

Answer: 16°

a rectangle has 4 90° angles

90-74 = 16°

Answer:

t218

Step-by-step explanation:

Answer:

[tex]\boxed {\boxed {\sf y= \frac{1}{2}x-5 }}[/tex]

Step-by-step explanation:

Since we are given a point and a slope, we should use the point-slope equation.

[tex]y-y_1=m(x-x_1)[/tex]

where m is the slope and (x₁, y₁) is the point the line passes through.

We are given the slope of 1/2 and the point (4, -3). Therefore:

[tex]m= \frac{1}{2} \\x_1= 4\\y_1= -3[/tex]

Substitute the values into the formula.

[tex]y--3= \frac{1}{2} (x-4)[/tex]

[tex]y+ 3= \frac{1}{2} (x-4)[/tex]

Distribute the 1/2. Multiply each term inside the parentheses by 1/2.

[tex]y+3= \frac{1}{2} *x + \frac{1}{2} * -4[/tex]

[tex]y+3=\frac{1}{2}x-2[/tex]

We want to the equation of the line in slope-intercept form or y=mx+b. We need to isolate y. 3 is being added and the inverse of addition is subtraction. Subtract 3 from both sides of the equation.

[tex]y+3-3=\frac{1}{2}x-2-3[/tex]

[tex]y=\frac{1}{2}x-2-3\\y= \frac{1}{2}x-5[/tex]

The equation of the line is y=1/2x-5

Answer:

what #1 said

Step-by-step explanation:

Answer:

0.6% of the people had a mild allergic reaction.

Step-by-step explanation:

Given that:

Number of people who tried hair care products = 6000

Number of people who had reaction = 36

Percent of people = [tex]\frac{Number\ of\ people\ with\ reactions}{Total\ number}*100[/tex]

Percent of people = [tex]\frac{36}{6000}*100[/tex]

Percent of people = 0.6%

Hence,

0.6% of the people had a mild allergic reaction.

Answer: de

Step-by-step explanation:

Answer:

Hope this helps!

Step-by-step explanation:

12% of 75 would be 9

9

Step-by-step explanation:

12/ 100 × 75

3/ 25 × 75

75/ 25 = 3

3 × 3 = 9

hope it helps!

Answer:

x2-20x+100

Step-by-step explanation:

You have to factor the expression in order to get your answer

Do this by expanding out the expression: (x-10)(x-10) Then factor by multiplying each of the components! Use the FOIL acronym to help you. FOIL stands for First, Outer, Inner, Last. Meaning multiply the first numbers of the expressions together, then the outers, then the inner two numbers, then the last two numbers of the expression.

Multiply x and x to get  , multiply x and -10 to get -10x, multiply -10 and x to get -10x, multiply -10 and -10 to get 100. Add them all together:  . Then combine like terms

The required trinomial in standard form is x²+20x+100.

Important information:

Using the formula [tex](a+b)^2=a^2+2ab+b^2[/tex], we get

[tex](x+10)^2=(x)^2+2(x)(10)+(10)^2[/tex]

[tex](x+10)^2=x^2+20x+100[/tex]

Therefore, the required trinomial in standard form is x²+20x+100.

Find out more about 'Trinomial' here:

https://brainly.com/question/860565

Answer:

middle / centre

Step-by-step explanation:

Each point is the same distance to the middle of a polygon

hope this helps....

Answer:

They are SAS congruent.

Step-by-step explanation:

Answer:

104

Step-by-step explanation:

100%= 1.00

so

420%= 4.20

Multiply 4.20×20

84

now add the original 20

104. She has 104 boxes in total.

Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!

Answer:

104

Step-by-step explanation:

20 + (20*4) + (20*0.2)

= 20 + 80 + 4

= 104

Answer:

1. Trinomial 2. Trinomial 3. Monomial 4. Binomial 5. Binomial

Step-by-step explanation:

The numbers with variables attached are called terms, and how many there are defines the equation. It doesn't matter how many variables or exponents are attached, there could be none or 15 each to the power of 6 but it's still one term. "Mono" means one, so there's only one term, "Bi" means two, so there are two terms, and "Tri" means three, so there are three terms. "Poly" applies to everything above three, though unused words for the bigger terms do exist.