2(x+3)=4x+8-x solve for x

r = -189

-13 = r/9 + 8

Subtract 8 on both sides

-21 = r/9

Multply 9 on both sides

-189 = r

Answer:

r = -189

Step-by-step explanation:

-13 = r/9 + 8

-13 - 8 = r/9

-21 = r/9

-21 × 9 = r

-189 = r

Answer: y=-4x-31

Step-by-step explanation:

To find a ling that is parallel to the given line and passes through the given point, we need to use the given point. We know that the slope MUST stay the same because parallel lines NEVER touch. All we have to do is plug in the point and find the y-intercept.

-7=-4(-6)+b            [multiply]

-7=24+b                 [subtract both sides by 24]

b=-31

Now, we know that y=-4x-31 is the equation.

Answer:

Step-by-step explanation:

Y-5=-2/5(x + 8)

Answer:

My answer came out to -22.

Step-by-step explanation:

Start multiplying from left to right:

Two negatives multiplied are positive:

-2.2·(-2)=4.4

A negative and a positive multiplied equal a negative:

4.4·(-1)=-4.4

-4.4·5=-22

Step-by-step explanation:

A pentagonal prism is a prism having two pentagonal bases and five rectangular sides. It is a heptahedron.

The regular right pentagonal prism is uniform polyhedron . Its dual polyhedron is the pentagonal dipyramid.

The surface area and volume for the right regular pentagonal prism of unit edge length are

S = 5+1/2sqrt(5(5+2sqrt(5)))

(1)

V = 1/4sqrt(5(5+2sqrt(5))).

Answer:

the answer is x = 2

Step-by-step explanation:

2x+2=4+1x

(2x-1x)+2= 4 +(1x-1x)

1x+2=4

1x(2-2)=(4-2

1x=2

2/1=x

x=2

Answer: X=2

I might be wrong

Answer:

14a+9c

Step-by-step explanation:

Answer:

Step-by-step explanatio

Answer:

Step-by-step explanation:

Given the rate at which the elevator travels modeled by the expression;

y = 30x where y is the height, in feet, and x is the number of seconds.

If the observatory in the John Hancock Center in Chicago is located in the top floor, 900 feet above the ground, we can calculate the time taken to reach the top floor by substituting y = 900 into the equation and solve for x as shown;

y = 30x

900 = 30x

Rearrange

30x = 900

Divide both sides by 30

30x/30 = 900/30

x = 30

Hence it takes 30seconds for the elevator to reach the top floor

Answer:

9:2   36:8   72:12

Step-by-step explanation:

Answer:

function - is a relation for which each value from the set the first components of the ordered pairs

Answer:

1.4, 2, √7

Step-by-step explanation:

√7 = 2.65 (rounded to nearest hundredth)

1.4 is the smallest

2 is next

√7 is the biggest

Hope I helped :)

Please consider Brainliest :)

Answer:

Look below.

Step-by-step explanation:

Not exactly sure what is being asked here, but I'm going to assume you need to convert them into decimals.

7.) 0.51

8.) 3.95

9.) 0.49

10.) 0.11

11.) 0.39

12.) 7.39

13.) 9.70

14.) 2.56

15.) 2.77

16.) 0.37

17.) 0.04

18.) 7.73

19.) 0.14

20.) 2.19

Any percent that goes over 100, goes into the unit place.

If I didn't answer the question right, then let me know.

Answer:

18.49

Step-by-step explanation:

just subtract 86.23 - 67.74

Answer:

18.49

Step-by-step explanation:

Answer:

I am pretty sure it is 72, sorry if i'm wrong:)

Step-by-step explanation:

Answer:8% this is the answer

Answer:

2.25 miles

Step-by-step explanation:

If she can walk 3/4 of a mile in 20 minutes you need to multiply 3/4 by 3 because 20 times 3 is 60 and there is 60 minutes in a hour

Answer:

A. & E.

Step-by-step explanation:

A.) 4-4=0

B.) 4+4=8

C.) 1-2=-1

D.) 25-10=15

E.) 16+8=24

PL≅YL - Given

∠P≅∠Y - Base Angle Theorem

LA≅AL - Shared Line (sry forgot what it is called)

PLA≅YLA - SAS (Side Angle Side)

hope this helps :)

Answer:

n=3

Step-by-step explanation:

Step-by-step explanation:

100/2[500/5{6+(21-17)}]

using BODMAS

100/2[500/5{6+4}]

100/2[500/5 × 10]

100/2 [100 × 10]

100/2 × 1000

50× 1000

50000

I think this is the answer. I'm not really sure but this is how I studied

All the best!

Answer:

if -5n+7<57, then n>-10.

if 6n+2<8, then n<1.

Step-by-step explanation:

-5n+7<57

1. subtract 7 from both sides:

-5n+7 -7< 57 -7

-5n<50

2. divide both sides by -5 (remember to flip the sign whenever you divide by a negative number):

-5n ÷-5<50 ÷-5

n>-10

6n+2<8

1. subtract 2 from both sides:

6n+2 -2<8 -2

6n<6

2. divide both sides by 6:

6n ÷6<6 ÷6

n<1

√6= 2.45    6+2.45=8.45  8.45 and 2/3 =9.12  

answer to question 3 is 6+ √6

The fourth one idk if im right or not but im pretty sure its x³ - 12x² + 37x = 0

Descartes' rule of sign is used to determine the number of real zeros of a polynomial function. It tells us that the number of positive real zeroes in a polynomial function f(x) is the same or less than by an even numbers as the number of changes in the sign of the coefficients.

Answer:

the answer is C the third one 25,500

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

The similarity statement is correct. Because they are similar, AB is equal to EF, so to find x, you do x-2=2.2. Solve that and you get x=0.2

Answer:

-59,049

Step-by-step explanation:

Multiply 9 by itself 5 times