Write 81.509 in expanded form

The equation that match the table attached is

B. y = -5(2⁻ˣ) + 4

By analyzing the given equations we can see that option B match the table and this is shown below

Using calculator to set the equation shows that

for x = -2

y = -5(2⁻ˣ) + 4 = 2.75

for x = -1

y = -5(2⁻ˣ) + 4 = 1.5

for x = 0

y = -5(2⁻ˣ) + 4 = -1

for x = 1

y = -5(2⁻ˣ) + 4 = -6

Based on the comparison, the equation that corresponds to the table is:

OB.y = -5(2⁻ˣ) + 4

Therefore, the correct option is OB.

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Answer:

Step-by-step explanation:

[tex]5x + 5 + 11x - 1 + 3x + 5 = 180 \\\ 19x + 9 = 180 \\\ 19x = 180 - 9 \\\ 19x = 171 \\\ x = \frac{171}{19} \\\\\ x = 9[/tex]

11 × 9 - 1 = 98°

The obtuse angle is the one have an angle measuring between 90° and 180°.

I hope I've helped you.

I think I'm getting better my English ^^

Answer:

Look for the lowest point of the curve

Step-by-step explanation:

The vertex is generally where two or more curves meet, so if you have a standard ax2+bx+c quadratic, it would be the lowest point of the graph.

The image below should point it out.

Answer:

First one is -3  2nd is 0 the 3rd one is 6 and the last one is 9

Step-by-step explanation:

Answer:

a=-3, b=0, c=6, d= 9

Step-by-step explanation:

simply subsitute the corresponding x in the equation y=3x+3 for each letter.

for a, do y=3(-2)+3➡ y=-6+3➡y=-3

for b, do y=3(-1)+3➡y=-3+3➡y=0

for c, do y=3(1)+3➡y=3+3➡y=6

for d do, y=3(2)+3➡y=6+3➡y=9

Answer:

2x + 66 + x = 180

3x = 180 - 66

3x = 114

x = 38

Answer: x=38 degrees

Step-by-step explanation:

You know that a line is equal to 180 degrees.

You equation -                           2x+x+66=180

Solve .                                        3x+66=180

Subtract 66 from both sides     3x = 114

divide                                            x=38

Step-by-step explanation:

5 = 5 × 1

9 = 3²

Common Multiple = 1 × 3² × 5 = 45

9514 1404 393

Answer:

  B) positive

Step-by-step explanation:

For even-index roots, which may be either positive or negative, the positive root is called the principal root.

Answer:

Step-by-step explanation:

i would love to help but im so confused :(

Answer:

C) 32ft

Step-by-step explanation:

2x+2=   2(1)+2= 4

3x+4=   3(1)+4= 7

2x+2=   2(1)+2= 4

5x+1=    5(1)+1= 6

2x+2=   2(1)+2= 4

3x+4=   3(1)+4= 7

4+4+4+6+7+7=  31

Answer: the fraction is already in simplest form, but you could make it a mixed number (1 5/7)

Step-by-step explanation

answer will be 1/22

The race is 123.90 meters long.

Since the next event requires each runner to jump 8 hurdles that are spaced 12.3 meters apart, if there are 15 meters from the starting line to the first hurdle and 10.5 meters from the last hurdle to the finish line, to determine how long is the race, the following calculation must be performed:

Therefore, the race is 123.90 meters long.

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Answer:

1600=50x+100(thats the equation) ACTUAL ANSWER: X=30

Step-by-step explanation:

The inequality represents all possible values of x, which will be 1600=50x+100.

Linear inequalities involve at least one linear algebraic expression. A polynomial of degree 1 is compared to another algebraic expression of degree less than or equal to 1.

The greatest weight a moving truck can carry = is 1,600 pounds

Weight of the piano = 400 pounds

Weight of box = 50 pounds

The inequality represents all possible values of x will be;

1600 = 50x+100

Hence the inequality represents all possible values of x, the number of these boxes that can be loaded into the moving truck will be 1600=50x+100.

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Answer:

2nd and 3rd options are correct.

Step-by-step explanation:

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The slope of the shown line is Zero, because it is parallel to x - axis ~

The slope of the given graph is zero

By considering the graph shown, the graph is horizontal.

Note that

Since there is no change in the y-coordinate because the graph is parallel, the change in the y-coordinate is zero.

Therefore, the slope of the given graph is zero

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Given quardratic polynomial is 3x^2+(2k-5)x-7

On Comparing this with the standard quadratic Polynomial ax^2+bx+c

a = 3

b=2k-5

c = -7

Given zeroes α and -α

sum of the zeroes α +(-α) = -b/a

⇛ α +(-α) = -(2k-5)/3

⇛ 0 = -(2k-5)/3

⇛ 0×3 = -(2k-5)

⇛0 = -(2k-5)

⇛-2K+5 = 0

⇛ -2k = -5

⇛ 2k = 5

⇛ k = 5/2

Answer:- The value of k is 5/2.

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If α and β are the zeroes of a quadratic Polynomial such that α + β = 24 , α - β = 8 . Find a quadratic Polynomial having α and β as it's zeroes...

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Answer:

Start by putting a point at (-3,-4). Then, go up 1 and to the right 2 continously.

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

2(k+3)=12

2*k + 2*3=12

2k+6=12

2k+6-6=12-6

2k=6

2k/2=6/2

k=3

Error Analysis DVDs cost $19.99 each for the first 2 purchased. After that, they cost $5.99 each. Describe and correct the error in sketching a graph to represent the relationship between the total cost and the number of DVDs purchased

Your answer is

Answer:

the last option

Step-by-step explanation:

50+25+x=180

x=105

50+105+x=180

x=25

Answer:

n=1/3 or  n=0.3, the 3 is infinite so put the line ontop of the 3

Step-by-step explanation:

Answer:

n = 0.33 or 1/3

Step-by-step explanation:

hope i helped you ... if I did can I get brainliest ☆ have a nice day ♡

Answer:

$575.00

Step-by-step explanation:

75 * 6=450

450+125=575

[tex]\dfrac{1}{ \left(\sqrt[3] 7 \right)^5} = 7^n\\\\\\\implies \left(\sqrt[3] 7 \right)^{-5} = 7^n\\\\\\\implies \left(7^{\tfrac 13} \right)^{-5} =7^n\\\\\\\implies 7^{-\tfrac 53} = 7^n\\\\\\ \implies n = -\dfrac 53[/tex]

Using the similarity of triangles, it exists seen that the true equation exists given by:

A) a/b = c/d

Two triangles exist similar when they have the same angles. Then, the measurements of the sides adjacent to similar angles exist proportional.

In this problem, about the location of the right angle of the triangle, we have that:

a/c = b/d

a/b = c/d

Therefore, the correct answer is option A) a/b = c/d.

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Answer:

2 you're just counting from 1 to 9.....

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

Answer:

The answer is 12                                

Step-by-step explanation:

2 x 12 + 1 = 25

Given Jessica and Laura's expenditure on shirts and pants, the equation to solve for the price of each shirts and pants is:

3s + 4p = 90

4s + 2p = 70

Let

Cost of each shirts = s

Cost of each pants = p

Jessica:

3s + 4p = 90 (1)

Laura:

4s + 2p = 70 (2)

Multiply (2) by 2

8s + 4p = 140 (3)

8s + 4p = 140 (3)3s + 4p = 90 (1)

Subtract (1) from (3) to eliminate p

8s - 3s = 140 - 90

5s = 50

s = 50/5

s = $10

substitute s = 10 into (1)

3s + 4p = 90 (1)

3(10) + 4p = 90

30 + 4p = 90

4p = 90 - 30

4p = 60

p = 60/4

p = $15

Therefore, the cost of each shirts is $10 and the cost of each pants is $15

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Answer:

UV = 45

Step-by-step explanation:

ZY is the perpendicular bisector of UV , then

UV = 2 × UY = 2 × 22.5 = 45

Answer:

5.5 is the answer please give brainliest

Step-by-step explanation: