Can some plsss actually help me I have been getting bad luck! I need to submit soon. Plssss

Answer:

AD∥BC,BD is the transversal line

⟹∠ADB=∠DBC (∵alternate angles)

⟹z=30

Step-by-step explanation:

Answer:

[tex]a:b = -17:1[/tex]

Step-by-step explanation:

Given

[tex]\frac{a-3b}{a+2b} = \frac{4}{3}[/tex]

Required

Find a:b

[tex]\frac{a-3b}{a+2b} = \frac{4}{3}[/tex]

Cross Multiply

[tex]3(a-3b) = 4(a+2b)[/tex]

Open brackets

[tex]3a - 9b = 4a + 8b[/tex]

Collect Like Terms

[tex]3a - 4a = 8b+9b[/tex]

[tex]-a = 17b[/tex]

Divide through by -b

[tex]\frac{-a}{-b} = \frac{17b}{-b}[/tex]

[tex]\frac{a}{b} = \frac{17}{-1}[/tex]

[tex]\frac{a}{b} = \frac{-17}{1}[/tex]

Represent as a ratio

[tex]a:b = -17:1[/tex]

Answer:

[tex]consider \: {1}^{st} and \: {3}^{rd} columns\\ slope = \frac{(96 - 32)}{(12 - 4)} \\ = \frac{64}{8} \\ slope = 8[/tex]

9514 1404 393

Answer:

  49.1°, 40.9°

Step-by-step explanation:

Let x represent the smaller angle. Then the larger is x+8.2 and the total of the two angles is ...

  x + (x +8.2) = 90

  2x +8.2 = 90 . . . . . collect terms

  x + 4.1 = 45 . . . . . . .divide by 2

  x = 40.9

  x +8.2 = 49.1

The two angles are 49.1° and 40.9°.

Answer:

The value of (f о h) (2) is 2

Step-by-step explanation:

Let us solve the question

In the composite function (f о h) (x) we substitute x in f(x) by h(x)

∵ f(x) = 2x² - 9x + 2

∵ h(x) = x² - 4

∵ We need to find (f о h) (2)

→ That means use x = 2

∴ x = 2

We will find at first h(2), then substitute x in f by the answer of h(2)

∵ x = 2

∵ h(2) = (2)² - 4

∴ h(2) = 4 - 4

∴ h(2) = 0

Now substitute x in f by 0

∵ x = 0

∵ f(0) = 2(0)² - 9(0) + 2

∴ f(0) = 0 - 0 + 2

∴ f(0) = 2

∴ (f о h) (2) = 2

Answer:

15x+60<240     is x<12

Step-by-step explanation:

Let's solve your inequality step-by-step.

15x+60<240

Step 1: Subtract 60 from both sides.

15x+60−60<240−60

15x<180

Step 2: Divide both sides by 15.

15x

15

<

180

15

x<12

Answer:

x<12

Step-by-step explanation:

Answer:

∠ A = 50°

Step-by-step explanation:

In a parallelogram, consecutive angles are supplementary, sum to 180°

∠ A + 130° = 180° ( subtract 130° from both sides )

∠ A = 50°

Answer:

Susan makes [tex]13\frac{1}{2}[/tex] pints of punch.

Step-by-step explanation:

Consider the provided information.

We know that:

2 cups (c) = 1 pint (pt)

4 cups (c) = 1 quart (qt)

16 cups (c) = 1 gallon (gal)

So 3 cups = [tex]1\frac{1}{2}[/tex] pint

1 gallon = 16 cups = 8 pint

The three mixed together would make [tex]1\frac{1}{2}+8+4=13\frac{1}{2}[/tex] pints of punch.

Hence, Susan makes [tex]13\frac{1}{2}[/tex] pints of punch.

Answer:

I think you're supposed to do 85/4

Step-by-step explanation:

85 devided by 4

$21.25 for each shirt

Step-by-step explanation:

When n = 2,

(2)²a + (2)b = 8.

=> 4a + 2b = 8.

When n = 5,

(5)²a + (5)b = 65.

=> 25a + 5b = 65.

4a + 2b = 8. => 10a + 5b = 20

25a + 5b = 65

- (10a + 5b = 20)

=> 15a = 45, a = 3.

Therefore 4(3) + 2b = 8, 2b = -4, b = -2.

We have a = 3 and b = -2.

Hence when n = 10,

an² + bn

= (10)²(3) + (10)(-2)

= 300 - 20

= 280.

The 10th term of the sequence is 280.

Answer:

The 10th term of the sequence is 280

Step-by-step explanation:

When n = 2,

(2)²a + (2)b = 8.

=> 4a + 2b = 8.

When n = 5,

(5)²a + (5)b = 65.

=> 25a + 5b = 65.

4a + 2b = 8. => 10a + 5b = 20

25a + 5b = 65

- (10a + 5b = 20)

=> 15a = 45, a = 3.

Therefore 4(3) + 2b = 8, 2b = -4, b = -2.

We have a = 3 and b = -2.

Hence when n = 10,

an² + bn

= (10)²(3) + (10)(-2)

= 300 - 20

= 280.

Answer:

1) {0,1,4}

Step-by-step explanation:

(x,y)

domain is x

range is y

so in this case the domain is 0,1,4    

Answer:

x = 80, y = 100

Step-by-step explanation:

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

Here n = 7 , then

sum = 180° × 5 = 900°

Sum the interior angles and equate to 900

y + 135 + 140 + 150 + 120 + 135 + 120 = 900, that is

y + 800 = 900 ( subtract 800 from both sides )

y = 100

x and y are adjacent angles and are supplementary, that is sum to 180°

x + y = 180

x + 100 = 180 ( subtract 100 from both sides )

x = 80

Thus x = 80 and y = 100

Answer:

3.88 : 3.25   ≈   13 : 11

Step-by-step explanation:

I don't know what are you in, geometry or algebra? I'll post my way of solution. It may need some calculator calculation that I can't give detail of steps here. I just like to explore something, wish it help.

suppose D is the origin, DA = 4 and AB = 5

A (0,4)    B(5,4)    C(5,0)    D(0,0)

AE/AC = 3/4   (i.e. AE/EC = 3/1)

parallel of EF with DC and EG with BC

CF/BC = CE/AC = 1/4

CF = BC x 1/4 = 4 x 1/4 = 1

DG/DC = AE/AC = 3/4  

DG = DC x 1/4 = 5 x 3/4 = 15/4

coordinator of E (3.75 , 1)

length of DE = √3.75² + 1² = 3.88

length of BE = √1.25² + 3² = 3.25

DE : BE = 3.88 : 3.25 ≈ 13: 11     (3.88/13 ≈ 0.29,  3.25/11 ≈ 0.29)

Answer:

do we need to explain in words or numbers

Step-by-step explanation:

Answer:

220 student and 241 adults

Step-by-step explanation:

x+y=461

3x+4y=1624

y=-x+461-----> 3x+4(-x+461)=1624

                              -x+1844=1624

                             +x  -1624

                                   x=220

3(220)+4y=1624

660+4y=1624

4y=964

y=241

There are 241 adult tickets and 220 student tickets did Sara sell.

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

Sara sold 461 tickets for a school play.

And, Student tickets cost $3 and adult tickets cost $4. Sara’s sales totaled $1624.

Let number of adult tickets = x

And, Number of student tickets = y

Hence, We get;

⇒ x + y = 461  .. (i)

And, 4x + 3y = 1624 .. (i)

Multiply by 3 in (i);

⇒ 3x + 3y = 1383  .. (iii)

Subtract form (ii);

⇒ x = 241

And, From (i);

⇒ x + y = 461

⇒ 241 + y = 461

⇒ y = 461 - 241

⇒ y = 220

Thus, There are 241 adult tickets and 220 student tickets did Sara sell.

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ3

Answer:

R=-3

Step-by-step explanation:

-11=r+4+4r

-11=5r+4

-4 both sides

-15=5r

Divide 5 both sides

r=-3

Answer:

r=-3

Step-by-step explanation:

Answer:

123

Step-by-step explanation:

Answer:

260 square feet.

Step-by-step explanation:

-4(2x+5)

-8x+-20

...................

Answer:

9-24=4(3)

-15=4×3

-15=12

Answer:

9-24= 4(3)

Multiply first

9-24=12

Then subtract the other digits in the side

-15=12

Step-by-step explanation:

Follow the PEMDAS rule which it to do which ever one of these first before furthering the math.

(Parentheses, exponents, multiply, division, addition and subtraction)

BUT hopefully there wasn’t a missing letter variable in the equation so you could get a single answer

Answer: 480 children's tickets

Step-by-step explanation:

On the Friday, 720 adult tickets were sold.

This number was 9 times the number of children's tickets sold. Number of adult tickets sold was therefore:

= 720/9

= 80 children's tickets.

On the Saturday, 6 times the above amount was sold:

= 6 * 80

= 480 children's tickets

Answer:

88

Step-by-step explanation:

it meets the mean

Answer:

88%

Step-by-step explanation:

:)

Answer:

Inequality equation:

0.03125x + 0.015625y ≤ 50 pounds

Step-by-step explanation:

We convert the ounces to pounds

1 ounce = 0.0625 pound

For the gold coin = 0.5 ounce

1 ounce = 0.0625 pounds

0.5 ounce = x

x = 0.5 × 0.00625 pounds

x = 0.03125 pounds

For the Silver coin = 0.25 ounce

1 ounce = 0.0625 pounds

0.25 ounce = x

x = 0.25 × 0.00625 pounds

x = 0.015625 pounds

The basket holds no more than 50 pounds of material.

Let the number of gold coins = x

The number of silver coins = y

Hence: our inequality equation:

0.03125x + 0.015625y ≤ 50 pounds

Answer:

hey long time no see!

Answer:

y = -2x

Step-by-step explanation:

y + 4 = -2 (x - 2)

Expanding the equation out, we get:

y + 4 = -2x + 4

Subtracting 4 from both sides, we get:

y = -2x.