Simplify and then evaluate the equation
when a = 2 and b = 4.
b2 + 3(b-b2) – 2a = [?]
Help please

Answer:

I get Answer c x=6 seconds

Answer:

a=-2

Step-by-step explanation:

[tex]2(3a + 4) = - 8 \\( 2 \times 3a = 6a)(2 \times 2 = 4) \\ - 8 - 4 = - 12 \\ 6a \div - 12 = - 2[/tex]

Answer:

216

Step-by-step explanation:

Answer:

$30,000

Step-by-step explanation:

250000 * 0.12 = 30000

Answer:

i think x=4.75

Step-by-step explanation:

Answer:

17/4

Step-by-step explanation:

17−5(2x−9)=−(−6x+10)+4

17−5(2x−9)=−(−6x+10)+4

17+−10x+45=6x+−10+4

(−10x)+(17+45)=(6x)+(−10+4)

−10x+62=6x+−6

−10x+62=6x−6

−10x+62−6x=6x−6−6x

−16x+62=−6

−16x+62−62=−6−62

−16x=−68

-16x/16 = -68/16

x = 17/4

Given:

Book club A charges $20 for membership and $2 per book rental.

Book club B charges $10 for membership and $3 per book rental.

To find:

The number of books for which the cost be the same at both book clubs.

Solution:

Let x be the number of books.

Book club A charges $20 for membership and $2 per book rental. So, the total cost is

[tex]C_1=20+2x[/tex]             ...(i)

Book club B charges $10 for membership and $3 per book rental. So, the total cost is

[tex]C_2=10+3x[/tex]            ...(ii)

Equating (i) and (ii), we get

[tex]10+3x=20+2x[/tex]

[tex]3x-2x=20-10[/tex]

[tex]x=10[/tex]

The total cost is

[tex]C_1=20+2(10)[/tex]

[tex]C_1=20+20[/tex]

[tex]C_1=40[/tex]

Therefore, the total cost at both book clubs are same for 10 rental books and that cost is $40.

Answer:

90

Step-by-step explanation:

The missing value is 2.56 to the nearest hundredth.

Equations using trigonometric functions that hold true for all possible values of the variables are known as trigonometric identities.

We have a right-angled triangle.

And cos(θ) = Adjacent leg / hypotenuse

cos(65°) = The missing value  / 6

The missing value = cos(65°) x 6

The missing value = 0.4226 x 6

The missing value = 2.56 to the nearest hundredth.

Therefore, the value is 2.56.

To learn more about the trigonometric identities;

https://brainly.com/question/24377281

#SPJ2

$100- $5w= M

17 weeks is when he'll have 15

25% of 40 is 10 hoped that helped

Answer:

57 degrees

Step-by-step explanation:

in a triangle the three interior angles always add to 180°

if you add 53 and 70 you get 123

to find the missing angle you would subtract 180 from the two numbers added

180 - 123

so 57 degrees

Answer:

trick question

Step-by-step explanation:

if ferris wheel A has a radius of 7.5ft=90in which you would multiplied by 2 which give a diameter of 180in and ferris wheel B has a diameter of 180in they would have the same circumference.

Answer:

15 pokémon cards

Step-by-step explanation:

45*3 /9= 135/9 = 15

Or you can simplify

3/9=1/3

45*1/3=15

Answer:

15

Step-by-step explanation:

45/9=5 5*3=15

I divide 45 by 9 to see how much card 1/9 is

Answer:

y = 0

Step-by-step explanation:

Answer:

y = 18

Step-by-step explanation:

Because it's interior angles are equal, it is an equilateral triangle.

Equilateral triangles have 3 equal sides.

So:

5y - 6 = 4y + 12

reduce:

y = 18

Answer:

they have to be protected, people have to work harder to protect them, and their habitats. The image below might help. (I hope this helps sorry if not!)

The recursive rule for the endangered turtle is to create critical habitats that would ensure their survival.

This means that based on the threatening activities of humans in their habitats, they are about to become extinct.

To prevent this from happening, the Endangered Species Act (ESA) has created habitats that are vital to the conservation of the animal.

Read more on endangered animals here:

https://brainly.com/question/740101

Answer: answer is 72 you can  get it by either multiplying the height and the base by two and following the formula for area of a triangle or you can divide 36 by two and multiply that by 4

Step-by-step explanation:

Answer:

72 meters

Step-by-step explanation:

Working on 1 triangle at a time

How to find the area of a triangle: Base x Height divided by 2

So: 6 x 6 = 36

36 divided by 2 = 18

Each triangle is 18 meters

18 x 4 triangles = 72 meters

Answer:

f = 100 and f = 65

Step-by-step explanation:

[tex]\frac{5}{5} \geq 9 = 1 \geq 9[/tex]

[tex]\frac{100}{5} \geq 9 = 20 \geq 9[/tex]  ←

[tex]\frac{20}{5} \geq 9 = 4 \geq 9[/tex]

[tex]\frac{65}{5} \geq 9 = 13 \geq 9[/tex]  ←

I hope this helps! May I please have brainliest? :)

Answer:  670 feet wide

Step-by-step explanation: plz make brainliest

Answer:

670

Step-by-step explanation:

Answer:

The answer is -3.4. If you have to round it, round it down to 3.

Step-by-step explanation:

Answer:

I think it's H but I'm not sure

Answer:

it is H

Step-by-step explanation:

Answer:

3.5N

Step-by-step explanation:

140g=0.14kg

F=ma

F=0.14×25

F=3.5N

Answer:

2x = 10

Step-by-step explanation:

Divide both sides by 2 and you get x = 5

I did a proportion and I think the answer is 13.6 or 14 after being rounded

Answer:

When calculating consecutive integers, the smaller number is x and the larger number is (x + 1). This is because the sum of the consecutive integers are equal to 5 more than 3 times the larger integer. So the smaller number is -7 and the larger number is -6.

Answer:

The sides of the triangles adjacent to the center of dilation will be collinear. The third sides of the pre-

image and image will be “parallel”

The vertex used as the center of dilation will be in “the same location in both triangles”

Answer:

have calculated all the numbers that 2838 is evenly divisible by. The numbers that 2838 is divisible by are 1, 2, 3, 6, 11, 22, 33, 43, 66, 86, 129, 258, 473, 946, 1419, and 2838. You may also be interested to know that all the numbers that 2838 is divisible by are also known as the factors of 2838.

Answer:

x+y=18000

Step-by-step explanation:

x= ammount of students

y= number of days or places going to