I was wondering if anyone had the answer key to the Gina Wilson, Unit 7: Polygon and Quadrilaterals Unit Test, it is one of our assignments instead of some big final.

Answer:

It’s 8.8 so just leave it in that order

Step-by-step explanation:

Answer:8.8

Step-by-step explanation:

Answer: 18.5% of the bill.

Step-by-step explanation:

Since the bill was 42 dollars while the total amount was 49.77, we need to subtract 42 by 49.77.

49.77 - 42 = 7.77.

So the tip was $7.77.

But then we also have to find the tip as a percentage.

So we should do 7.77 divided by 42, because 42 is the original amount.

7.77 ÷ 42 = 0.185, but as a percent you have to move to the left two places. So the decimal is 18.5.

In conclusion, the tip was 18.5% of the bill.

Hope this helps!

Answer:

9x² + 16y² - 24xy

Step-by-step explanation:

(3x - 4y)²

⇒ (3x)² + (4y)² - 2 (3x) (4y)                                            {(a - b)² = a² + b² - 2ab}

⇒ 3²x² + 4²y² - 2 (12xy)

⇒ 9x² + 16y² - 24xy

Answer:

1. 15.708

2. The radius would be half of the distance across the drain, or half of the diameter. Half of 3.8cm, or 3.8cm / 2 is 1.9cm.

The circumference is the distance around the drain, or if you trace the entire circle. The formula to find the circumference of a circle is 2 multiplied by pi and the radius of the circle, or C = 2(pi)r. Here, we just found the radius, so the circumference is 2 * pi (which is approximately 3.14) * 1.9cm, or approximately 11.9cm!

Step-by-step explanation:

Answer to the problem: 189 beech trees

Answer:

A=2.5

B=2

Step-by-step explanation:

A parallelogram has to have the opposite sides equal each other. In this case side LM and side ON have to be equal.

We can compare the two sides using algebra.

4b+7=8b-1

Using simple methods, we can isolate b on a single side.

1+7=8b-4b

8=4b

b=2

From this we learn b is 2. To find out the value of A on side MN and LO, we will plug in the value for b at all instances of B in this equation.

2a = 2b+1

2a = 2(2)+1

2a=4+1

2a=5

a=2.5

Answer:

120

Step-by-step explanation:

Answer:

x+6y=20

x=8, y=2

Andy did 8 problems

Step-by-step explanation:

Answer:

Khalid’s rate is ___140_ miles per hour. Jesse’s rate is _150___ miles per hour. So, _Jesse’s___ train traveled at a faster speed.

Step-by-step explanation:

The general equation of a straight line is

y = mx + b

for y = 150x

We have the slope as 150

This is 150 miles/hour

This relates to Jesse’s train speed

for Khalid, we have his own speed obtainable from the graph

The speed is simply the slope of the graph

We proceed to select two points from the graph and find the slope

The points are; ((1,140) and (4,560)

Mathematically, the slope will be;

m = (y2-y1)/(x2-x1)

m = (560-140)/(4-1) = 420/3 = 140 miles per hour

Answer:

C orB looks like it

Step-by-step explanation:

Answer:

4x + 17

Step-by-step explanation:

10x+5-2(3x-6)

10x + 5-6x+12

Answer:

0.75

Step-by-step explanation:

your welcome

A) [tex]7x(-5)[/tex]

A multiplicação de um numero positivo por um numero negativo resulta em um numero negativo: [tex](+) x (-)=(-)[/tex]

[tex](7x5)[/tex]

Multiplique os valores

[tex]-35[/tex]

resposta para  A: [tex]-35[/tex]

B)[tex](-9)x(-8)[/tex]

A multiplicação dois números negativos resulta em um numero positivo : [tex](-)x(-)=(+)[/tex]

[tex]9 x 8[/tex]

Multiplique os valores

[tex]72[/tex]

Resposta para B :[tex]72[/tex]

C)[tex](-15) : 5[/tex]

A divisão de um numero negativo por um positivo resulta em um numero negativo: [tex](-):(+)=(-)[/tex]

[tex]-(15:5)[/tex]

Divida os números

[tex]-3[/tex]

Resposta para C: [tex]-3[/tex]

D) [tex]125 : 25[/tex]

Divida os números

[tex]5[/tex]

Resposta para D: [tex]5[/tex]

POR FAVOR ME MARCA BRAINLIEST

Answer: Minnie is 9 years old

Step-by-step explanation:

Eileen = e = 21

Minnie = m

E = 3m - 6

3m - 6 = 21

3m = 27

m = 9

Step-by-step explanation:

Graph the parabola using the direction, vertex, focus, and axis of symmetry.

Direction: Opens Up

Vertex: (0,−2)

Focus:

[tex] (0 , - \frac{15}{8})[/tex]

Axis of Symmetry:

x

=

0

Directrix: y =

[tex] - \frac{17}{8} [/tex]

Answer:

I don't know what's I don't know I'm really sorry very very very very very very very very very very very very sorry very sorry

Answer:

-1/2

Step-by-step explanation:

Answer:

A. 16 x 26

Step-by-step explanation:

Pruduct means the answer to a multiplaction problem.

Answer:

The answer is A

Step-by-step explanation:

The product means it's a multiplication

Answer:   -19+27

Step-by-step explanation:

Answer:

The answer would be 81 brown ducks.

Step-by-step explanation:

All we have to figure out 75% of 108.

0.75 multiplied by 108 is 81

So the answer would be 81 brown ducks.

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Hope this helped! If it did, please consider making this brainliest! :)

[tex]\huge\sf\bigstar\underline{\underline\pink{Answer:-}}[/tex]

Yes, The number 379,098 is divisible by 9

As, the divisibility rule of 9 is sum of all digits is divisible by 9.

Here, 3+7+9+0+9+8

[tex]\orange\Rightarrow[/tex] 36

36 I'd divisible by 9.

[tex]\therefore[/tex] 397,098 is divisible by 9.

Step-by-step explanation:

The equation is y = -x - 4.

Answer:

11/200

Step-by-step explanation:

5.5% = 5.5/100 = 0.055

0.055 1000

———- X ———

1 1000

=55/1000

=11/200

Domain: possible x values

Between -10 and 6

Solution: -10 < x < 6

Given :

A parallelogram has sides 8 ft and 14 ft the height corresponding to the 14 ft base is 4 ft.

To Find :

The height corresponding to the 8 ft base.

Solution :

Since, both parallelogram are similar. So, ratio of the sides of parallelogram is similar in both the cases.

[tex]\dfrac{h_1}{h_2}=\dfrac{b_1}{b_2}\\\\\dfrac{8}{14}=\dfrac{h_1}{4}\\\\h_1 = \dfrac{8\times 4}{14}\\\\h_1 = 2.285 \ ft[/tex]

Therefore, the height corresponding to the 8 ft base parallelogram is 2.285 ft.

Answer:

1. The sum of two times a number (x) and -2 is at least 8 is first

2. Seven subtracted from 4 times a number (x) is more than 13 is second

3. Four added to 3 times a number (x) is less than 19 is third

4. Two less than 3/2 of a number (x) is no more than 5 1/2 is last

LOVE YOUR PFP!!!

Step-by-step explanation:

Answer:

1. Two less than 3/2 of a number (x) is no more than 5 1/2 is last

2. Seven subtracted from 4 times a number (x) is more than 13 is second

3. Four added to 3 times a number (x) is less than 19 is third

4.The sum of two times a number (x) and -2 is at least 8 is first

Step-by-step explanation:

got it right

Responder:

Los valores de y son 3/5 y -1

Los valores de x son = -12/5 y -4

Explicación paso a paso:

Dadas las eqautions;

x + 3 = y ...... 1

x ^ 2- 16y ^ 2 = 0 ..... 2

Sustituya la ecuación 1 en 2 que tendremos;

x ^ 2- 16y ^ 2 = 0

x² - 16 (x + 3) ² = 0

x²-16 (x² + 6x + 9) = 0

x²-16x²-96x-144 = 0

-15x²-96x-144 = 0

15x² + 96x + 144 = 0

5x² + 32x + 48 = 0

Al factorizar tendremos;

5x + 12 = 0 yx + 4 = 0

x = -12/5 y -4

Obtenga los valores de y;

recuerda que y = x + 3

Si x = -12/5

y = -12/5 + 3

y = 3/5

Si x = -4

y = -4 + 3

y = -1

Por tanto, los valores de y son 3/5 y -1