please help. I dont understand it ​

Answer:

Step-by-step explanation:

1.

a)

Find the vertex by completing the square to answer both a and b

d)

x-ints is when y=0

so use quadratic equation for

b^2-20b+200=0

a=1

b= -20

c=200

But notice these imaginary numbers means 0 x intercepts.

Answer:

21 g

Step-by-step explanation:

you add 12g by 9g and you get 21g

Answer:21g

Step-by-step explanation: The answer is 21g

Answer:

23m-18

Step-by-step explanation:

2(7m−5)+(−8+9m)

Remove parenthesis

2(7m-5)-8+9m

expand

14m-10

14m-10-8+9

simplify

23m-18

Ask me for more questions brainliest please.

Answer        3 1 /2 in decimal it is -3.5    

Step-by-step explanation:

Answer:

6x3+10x2−16x or A

Step-by-step explanation:

I used an algebra calculator because im too lazy to work it out.  

^algebra^

(3x2 + 8x)(2x − 2)

=3x²(2x-2)

=6x³ - 6x²

+8x(2x - 2)

=16x² - 16x

put it all together

=6x³ - 6x² + 16x² - 16x

group according to variables, then count

6x³ + (-6x² + 16x²) - 16x

=6x³ + (+10x²) - 16x

=6x³ + 10x² - 16x

Answer:

12 Step-by-step explanation:

Answer:

31/8

Step-by-step explanation:

3/1/4 - (-5/8)

13/4 + 5/8

find Lcm of 4 and 8 = 8

multiply their common factors with numerators.

13*2 + 5*1 = 31

=31/8 or 3/7/8 or 3.875

Answer:

3 and 7/8

Step-by-step explanation:

3 1/4 - ( - 5/8 ) = x

13/4 + 5/8 = x

26/8 + 5/8 = x

31/8 = x

x = 3 7/8

Answer:

1 : 3, 1/3, 1 to 3

Step-by-step explanation:

if there is 1 dog, the first digit is 1

if there is 3 cats, the first digit is 3

1:3

Answer:

0.875

Step-by-step explanation:

Answer:

Step-by-step explanation:

u would divide 7 by eight and get 0.875

Answer:

200 - 6 - (-3) = 197 200 - (-2) = 202

Answer:

Rotation of 270 degrees counterclockwise about the origin

Step-by-step explanation:

9514 1404 393

Answer:

  x = (rs -t)/(3r)

Step-by-step explanation:

  [tex]s=3x+\dfrac{t}{r}\\\\s-\dfrac{t}{r}=3x\\\\\dfrac{rs-t}{3r}=x\\\\\boxed{x=\dfrac{rs-t}{3r}}[/tex]

Answer:

fifty eight centimeters I believe

Answer:

58cm

Step-by-step explanation:

a rectangle has two of the same sides so 16×2=32

and

13×2=26

so

32+26=58

Answer:

56

Step-by-step explanation:

its 56 b

We can conclude that -

An inequality compares two or more numbers or expressions with one another. For example -

2x + 4y > 7

2x + 5y < 6

Given is the table that shows the cost of renting a sound system for a concert. Isabel rents a sound system at 1 p.m. and plans to return it before 4 p.m.

The total number of hours for which she will rent the sound system is -

{h} = 4 - 1 = 3 hours

{h} = 3 hours

Now, for 3 hours, the given inequality is -

2 < x ≤ 3

We can write the cost as $60.

If she is 30 minutes late, then she will pay $72.

Therefore, we can conclude that -

To solve more questions on tabular inequality, visit the link below

https://brainly.com/question/29194803

#SPJ2

Answer:$54 for 3 hours of work

Step-by-step explanation:

Multiply 18 times 3

and you get 54

Answer:

The scale factor should be 4

Step-by-step explanation:

sry if it is wrong i needed pionts and had the same problem hope this helps though ((((P:))))))

Answer:

3/4...............

Step-by-step explanation:

have a nice day

Answer:

1 (240000)

2 (8000)

3(8160000)

Answer:

60% of snow

Step-by-step explanation:

Answer:

2:1

Step-by-step explanation:

9 is double 4.5

The ratio in the form of n: 1 will be 2: 1.

A ratio is a collection of ordered integers a and b represented as a/b, with b never equaling zero. A proportionate expression is one in which two items are equal.

Making anything easier to accomplish or comprehend, as well as making it less difficult, is the definition of simplification.

The ratio is given below.

⇒ 9: 4.5

Simplify the ratio in the form of n: 1, then we have

⇒ 9: 4.5

⇒ 2: 1

The ratio in the form of n: 1 will be 2: 1.

More about the ratio and the proportion link is given below.

https://brainly.com/question/14335762

#SPJ2

Answer:

286.44 miles........

Answer:

I think it is 90 and 100

Step-by-step explanation:

I used this equation: x is the speed of the slower train

910 = (5x + 10) + 5x

Answer:

The answer is 86 and 96 mph

Step-by-step explanation:

Givens

Train A

Distance traveled = d

time taken = 5 hours

rate traveled = r

Train B

Distance traveled = 910 - d

time taken = 5 hours

rate = r + 10

Formula

basically d = r * t

Solution

Train A: d/r = 5 or d = 5*r

Train B = (910 - d)/(r + 10) = 5    or

Substitute d = 5*r   into Train B

(910 - 5*r)/(r + 10) = 5        Multiply both sides by r + 10

(910 - 5r) = 5 * (r + 10)       Remove the brackets on both sides

910 - 5r = 5r + 50             Add 5r to both sides

910 = 5r + 5r + 50

910 = 10r + 50                  Subtract 50 from both sides

910 - 50 = 10r                  Combine the left

860 = 10r

10r = 860                         Divide by 10

r = 860/10

r = 86

r + 10 = 96

Check

Train A distance: 5*r = 5 * 86 = 430

Train B distance: 5*r = 5 * 96 = 480

Total =                                         910

Answer: C=50.24 ft, A=200.96 ft^2

Step-by-step explanation:

Area:

A=(pi)*r^2

A=(3.14)*8^2

A=200.96 ft^2

Circumference:

C=2*(pi)*r

C=2*(3.14)*8

C=50.24 ft

Answer:

4b

Step-by-step explanation:

log(5) = b actually means that

[tex]10^b = 5[/tex]

The power of 10 is b.

So log(5⁴) means that

[tex](10^b)^4 = 5^4[/tex]

so the power of 10 is 4b.

Answer:

A

Step-by-step explanation:

Answer:

A because $10 needed to be divided by $1.35 and and the rounding is needed to get the answer