please help asap!' 9th grade math!!

Answer:

2.25 ft

Step-by-step explanation:

Perimter= 28ft

W= x ft

L= 3x+5

but

P=2L+2W

substitute

28=2*(3x+5)+2x

28=6x+10+2x

collet like terms

28=8x+10

28-10= 8x

18=8x

divide both sides by 8

x= 18/8

x=2.25 ft

Hence the width is 2.25 ft

Answer:

[tex]a^{2} + 12a + 18[/tex]

Step-by-step explanation:

Step-by-step explanation:

Its F

Answer: I believe the first one is ASA, and the third one is SAS, however for the second one, I think it’s none or ASA

Answer:

C.

Step-by-step explanation:

Answer:

y = 2x + 1

Step-by-step explanation:

According to the table:

+1 +1 +1 +1

[x] -2 -1 0 1 2

[y] -3 -1 1 3 5

+2 +2 +2 +2

y = mx + b

b is y when x = 0

m is the change in y divided by the change in m = ∆y/∆x or slope.

+2/+1 = 2 = m

y = 1 when x = 0 so b = 1

therefore y = 2x + 1

Answer:

7 just did the work I would attach it but I don't know how to lol

x=7

Answer:

x=7

Step-by-step explanation:

x-6=-4+5

x-6=1

x=1+6

x=7

Check:

(7)-6=-4+5

1=1

Hope this helps. Have a nice day you amazing bean child.

Answer:

You end up paying $12.96 for the movies tickets

Step-by-step explanation:

Before Tax Price: $12.00

Sale Tax: 8.00% or $0.96

After Tax Price: $12.96

Answer:

x = undefined

Step-by-step explanation:

Because you have an x and then remove the x the it is not pssible to tell what x was with the given information causing it to be undefined.

A  i think im not really sure im also thinking it might be B

Answer:

yes

Step-by-step explanation:

vvttgvggf

Answer: D. It reduces the cost of your health services and treatments.

Step-by-step explanation:

Health insurance is a form of insurance that is applicable when someone is sick and has medical expenses to pay.

The benefit of health insurance is that it reduces the cost of your health services and treatments.

Health insurance protects an individual from paying huge amount on medical costs. Once a person is insured, the expense paid by six person is typically low as the insurance company covers the expenses.

Answer: d) a and b

Step-by-step explanation:

a and b

Answer:

Market price = Rs. 6,000

Step-by-step explanation:

Given:

Cost price = R.s 4,000

Profit after discount = 20%

Discount = 20%

Find:

Market price

Computation:

Sales price = Cost price[1+Profit after discount]

Sales price = 4,000[1+20%]

Sales price = 4,800

Market price = Sales price[100/(100 - Discount)]

Market price = 4,800[100/(100 - 20%)]

Market price = Rs. 6,000

Answer:

(4,2)

Step-by-step explanation:

Just by looking at the graph, you can see that they intersect at (4,2). But just to check:

x - 2 = -0.5x + 4

1.5x = 6

x = 4

y = 4 - 2 = 2

(4,2)

Answer:

yes

Step-by-step explanation:

3/5 = 0.6 =0.60

hence it's bigger than 0.65

Answer:

Therefore, the width of the canyon is 109.09 meters.

Step-by-step explanation:

* 160/22 = k (Scale Factor)

  7.2727 = k

* Let x be the width of the canyon

 x / 15 = k

 x / 15 = 7.2727

 x = 7.2727 (15)

 x = 109.09 m

The width of the canyon is 109.09m.

Here we assume x be the width of the canyon.

The k(Scale factor) should be

= [tex]160 \div 22[/tex]

k =  7.2727  

So,

[tex]x \div 15 = k\\\\ x \div 15 = 7.2727[/tex]

 x = 109.09 m

Learn more: brainly.com/question/17429689

Answer:

x^2 +2x-8

Step-by-step explanation:

Here, we want to write the quadratic polynomial given the sum of the root and the product

mathematically, we can have the factors as -2 And +4

So we have the equation as;

(x-2)(x + 4)

= x^2+ 2x - 8

Answer:

The answer is a Whole number which would be 7.

Step-by-step explanation:

If he need one pound of cheese for each pizza and he has seven pounds of cheese then he would be able to make 7 pizzas.

Answer:

He can make 7 pizzas.

Step-by-step explanation:

If he only has seven pounds, and it takes one pound to make one pizza, you can divide the pounds available (7) by the pounds needed to make a whole unit (1 pizza).

7/1 = 7

Answer:

Step-by-step explanation:

Multiplying by 0.21 is the same as decreasing by 21%?​

Answer:

21%

Step-by-step explanation:

the decimal for a percents is moved two places anytime it is multiplied.

Answer:

2x-8+3x+2=4x+10+3x-6

We move all terms to the left:

2x-8+3x+2-(4x+10+3x-6)=0

We add all the numbers together, and all the variables

2x+3x-(7x+4)-8+2=0

We add all the numbers together, and all the variables

5x-(7x+4)-6=0

We get rid of parentheses

5x-7x-4-6=0

We add all the numbers together, and all the variables

-2x-10=0

We move all terms containing x to the left, all other terms to the right

-2x=10

x=10/-2

x=-5

Step-by-step explanation:

Answer:

5, 1, 0.2

Step-by-step explanation:

Divide the number by 5 to get the next one.

Answer:

m∠AYB = 85°

m∠C = 50°

Step-by-step explanation:

By is the angle bisector of ∠ABC,

Therefore, m∠1 = m∠2 = 30°

m∠3 = 35°

m∠AYB + m∠YAB + m∠ABY = 180°

m∠AYB = 180° - [(m∠1 + m∠2) + m∠3]

             = 180° - [(30° + 30°) + 35°]

             = 180° - 95°

             = 85°

m∠A + m∠B + m∠C = 180°

2(30°) + 2(35)° + m∠C = 180°

60° + 70° + m∠C = 180°

m∠C = 180° - 130°

m∠C= 50°

Answer:

Step-by-step explanation:

Answer:

a=16

Step-by-step explanation:

I believe this is right if it is wrong please tell me.

Answer:

16km

Step-by-step explanation:

Since its a right angle triangle we can use the pythogorean theorem, which is a^2 + b^2 = c^2

So if we apply it to this situation we get,

12^2 + b^2 = 20^2

144 + b^2 = 400

b^2= 400 - 144

b^2= 256

b= 16

So the answer is 16km

Hope this helped :)

Answer:

x ≈ 2.1

y ≈ 5.4

w = 5

Step-by-step explanation:

The given parameters are;

Segment AC = 13

Segment BC = y

Segment AD = 12

Segment CD = w

Segment BD = x

By Pythagoras's theorem, for the right triangle ΔACD, we have;

[tex]\overline {AC}[/tex]² = [tex]\overline {AD}[/tex]²  + [tex]\overline {CD}[/tex]²

∴ 13² = 12² + w²

w² = 13² - 12² = 25

w = √(25) = 5

w = 5

By, Pythagoras's theorem similarly, in the right triangle ΔBCD we have;

y² = x² + w²

∴ y² = x² + 5² = x² + 25

y² = x² + 25

In the right triangle ΔABC we have;

[tex]\overline {AB}[/tex]² = [tex]\overline {AC}[/tex]²  + [tex]\overline {CB}[/tex]²

∴ (12 + x)² = 13² + y² = 13² + (x² + 25)

(12 + x)² = 13² + (x² + 25)

144 + 24·x + x² = 13² + x² + 25

24·x = 13² + 25 - 144 = 50

x = 50/24 ≈ 2.1

x ≈ 2.1

y² = x² + 25

∴ y = √(x² + 25) = √((50/24)² + 25) = 65/12 ≈ 5.4

y ≈ 5.4