Select the correct answer. What is the value of x?
log2(x+7)=2
a. -3
b. 11
c. 250
d. 22

Answer:

since equation 1 says that X= 1

any other equation saying x=1 will be valid!

Equation A

Equation B

Equation C

Equation D

all correct

Answer:

Linear

Step-by-step explanation:

Both top and bottom are going up at a constant rate

x is going up by 9 and

y is going up by 7

Answer:

-3

Step-by-step explanation:

y=mx+b

m is slope

Answer:

-3 would be the correct answer

Answer:

Height of jump rope used over time.

Step-by-step explanation:The Height is stable and even so not an elevator as it goes to multiple floors not just one and is not used frequently after the same amount of time.Not the rest for the same reason.Jump rope as it can be uniform in height and time unlike the rest.

Answer:

Step-by-step explanation:

4/52 times 3/51=1/221

Answer:

H=44

Step-by-step explanation:

−(−62)+8=−(−36)+8=36+8=44

Answer:

-28

Step-by-step explanation:

-x^2+8

-(-6)^2 + 8 (-6 to the 2 power)

-36 + 8

-28

"The Kid Laroi"- Rapper-Songwriter

Answer:

8/7, 8/7

Step-by-step explanation:

Answer:

Chyba 600,90zł

Step-by-step explanation:

Answer:

The rate's aren't equivalent.

Step-by-step explanation:

If you find a common number of hours between the two expressions such as 24 hours you will see that the pay isn't the same. $24 for 6 hours of work ($4:1hr) can be turned into $96 for 24 hours of work and $36 hours for 8 hours of work ($4.5:1) turns into $108 for 24 hours of work.

Answer:

well- you cant buy any pounds-

Step-by-step explanation:

Answer:

7x+12

Step-by-step explanation:

You do 10x-3x since they both have the x variable they can be combined to make 7x and the 12 is left alone.

Answer:

7x + 12

Step-by-step explanation:

irs gonna go like

10x -3x =7x

and the answer is

7x+12

Answer:

[tex] 3y + 10 [/tex]

Step-by-step explanation:

The total number of seeds Frank will plant in both gardens all together would be:

[tex] y + 2y + 10 [/tex]

Add like terms together to simplify the expression

[tex] 3y + 10 [/tex]

Frank is going to plant [tex] 3y + 10 [/tex] seeds

Answer:

y = x - 11

Step-by-step explanation:

First, turn the f(x) into a y:

y = x + 2 + 9

Now, switch the x and y.

x = y + 2 + 9

Add like terms.

2  + 9 = 11

x = y + 11

Now, solve for y. Subtract 11 on both sides.

y = x - 11

Answer: a=126, b=134, c= 110, d=146, e=46

Step-by-step explanation:

so for a you take 180-54 and that gives you A

for b you take 33,70,and A(126) and add them together then subtratct by 360 and you get b for d you take 180-33 and get 146 for c you take 180-70 and get 110 and for e you take 180 - 134(B) and you get tha answer to e

- increase

because 80 is greater than 50.

50 - 80

----------- = 30/50 = 0.6

  50

answer:

- the change is an increase by 60%

Answer:

increase of 60%

Step-by-step explanation

The change from 50 to 80 is an increase of 30

To calculate percentage increase

[tex]\frac{change}{original}[/tex] × 100%

= [tex]\frac{30}{50}[/tex] × 100%

= 60% increase

Answer:

Difference is the result of subtracting one number from another. ... So, difference is what is left of one number when subtracted from another. In a subtraction equation, there are three parts: The minuend (the number being subtracted from) The subtrahend (the number being subtracted)

Step-by-step explanation:

Answer:

A and C

Step-by-step explanation:

Answer:

36pi

Step-by-step explanation:

Since the formula for the circumference is C=2*pi*r

12pi=2*pi*r we can divide and get r=6 cm

Then, we can use the formula for the area of a circle: Area=pi*r^2 and get Area=pi*6^2=36*pi.

Answer:

5x + 7y = -42

Step-by-step explanation:

This question will be a little easier to answer if we change the form of the original equation from slope intercept to standard form:

[tex]y=(-5/7)x-7\\(5/7)x+y=-7\\5x+7y=-49[/tex]

All parallel lines have the same slope, but what does that mean when our equation's in standard form. Well, slope only depends on the coefficients of the x and y terms, so any equation of a line in standard form with 5x + 7y on the left side will be parallel to the one in the problem. Looking through the possible choices, B. 5x + 7y = -42 is the only one that works.

Using desmos to check our work, we can see that the two lines are actually parallel!

Answer:

14c + 21d - 42

Step-by-step explanation:

Answer:

0.6

Step-by-step explanation:

oki so to make it easier, you can convert 3/5 to 60/100

60 out of 100 is 0.6

Hope this helps! :D

Answer:

Step-by-step explanation:

21/25

i just had this question a couple days ago lol

Answer:

thx for the points thats what you get for not answering my question properly and stealing points

Step-by-step explanation:

Answer:

Now,

tan15°=

[tex] \frac{5100}{ae} [/tex]

ae=

[tex] \frac{5100}{tan15} [/tex]

.: ae = 19033.45

.: the aeroplane is 19033.45 m away from the control tower.

Answer:

m= −7/3

(x1,y1)=(−3,8)

(x2,y2)=(0,1)

Use the slope formula:

m=

y2−y1

x2−x1

=

1−8

0−−3

=

−7

3

=

−7

3

Answer:

1/2 ( 10x + 8 )

Step-by-step explanation:

first make sure everything in the parenthesis is addition. by doing this you make the 6 and 8x negatives. so it's 1/2 ( 13x + 5x + -6 + -8 + 14 ) then combine the numbers with the variable x so 13x + 5x + -8x = 10x . then the ones without variables -6 + 14 = 8. so 1/2 ( 10x + 8)

Answer:

It took 8 seconds for the leaf to reach the ground.

Step-by-step explanation:

The height of the leaf in feet can be found using the function:

y = -3.5*x + 28

where x is the time in seconds the leaf has been in the air.

You want to know how long it took for the blade to reach the ground. That is, the time it took for the blade to reach a height of 0 feet. So, replacing this value in the expression:

0= -3.5*x + 28

and solving you get:

-28= -3.5*x

(-28)÷ (-3.5)=x

8=x

It took 8 seconds for the leaf to reach the ground.

Answer:

2, 3, 6, 1

Step-by-step explanation:

common factors of 6 are 1, 2, 3, 6

common factors of 24 are 1, 2, 3, 4, 6, 8, 12, 24

so both 6 and 24 have common factors of 1, 2, 3, 6

Answer:

Step-by-step explanation:

we know that 1 lb=16oz

16 oz almonds = costs 8 dollars , we divide the cost to oz

8/16=0.5 dollars / oz

4.10/0.5=8.2 oz

for 4.10 dollars you buy 8.2 oz

Answer:

$340

Step-by-step explanation:

We are told that the pool measures 15 feet by 30 feet,

Since the cost of the wood around it is per yards, let's convert this measurement to yards.

15 ft = 5 yards

30 ft = 10 yards

The deck is 3 ft wide. Converting to yards it is 1 yard.

Since the deck is round the pool, it means when we add it to the pool dimensions, we now have a dimension of; width: 7 yards by length: 12 yards

Thus, total area of pool and deck is;

A_t = 7 × 12 = 84 Sq.yds

Area of only pool is;

A_p = 5 × 10 = 50 Sq.yds

Finally, area of the deck will be;

A_d = 84 Sq.yds - 50 Sq.yds = 34 Sq.yds

We are told that the costs of the wood is $10 per Sq.yds

Thus, total cost is;

C = 10 × 34

C = $340