help me with these 3 and i’ll love you forever and give you brainliest:)

Answer:

16.5 feet or

about 17 feet long.

Step-by-step explanation:

A = bh

Squares have equal side lengths all around so with there being 4 sides, you will take 66 and divide by 4.

66 ÷ 4 = 16.5

So it is about 17 feet

Answer:

see i have posted my pic

Step-by-step explanation:

please mark me as brainliest

Answer: 1. Correct, 2. Incorrect 90° angle not 80° angle answer is 50, 3. Is correct, 4. Is correct

Step-by-step explanation:

Answer:

48

Step-by-step explanation:

288 divided by 6 is 48 and how you get mph is todal miles in 1 hr

The speed of the driver for the entire journey is 48 miles per hour.

The given parameters;

Speed is defined as the ratio of total distance traveled by the total time of motion.

The speed of the driver for the entire journey is calculated as follows;

[tex]speed = \frac{distance}{time} \\\\speed = \frac{288 \ miles}{6 \ hours} \\\\speed = 48 \ miles \ per \ hour[/tex]

Thus, the speed of the driver for the entire journey is 48 miles per hour.

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Answer:

If it is direct proportionality, then y = kx where k is a constant.  Use the given information to find k:

8 = k(12) ⇒ k = 8/12 = 2/3

y = (2/3) x

For y = 12,

12 = (2/3) x ⇒ x = (3/2)*12 = 18

x = 18 when y = 12

I hope this helps a little bit.

Answer:

180

Step-by-step explanation:

V=lwh

3=10·9·6

3=180

Answer:

the first one is proportional and the constant is 10. the second one isn't proportional could be wrong on that one

Step-by-step explanation:

-3 10

-1 4

10= -3m+b

4= -m+b

6= -2m

m= -3

10= 9+b

b= 1

y= mx+b

y= -3x+ 1

Answer:

Scale factor=8

Step-by-step explanation:

height =(64/8=8)

Length (40/5=8)

Hope this helps ;)

Answer:

Scale Factor: 1/8

Step-by-step explanation:

8/64 simplified (divided by 8) = 1/8

5/40 simplified (divided by 5) = 1/8

Answer:

15) x = 112

18) x = 120

19) x = 31

20) x = 65

Step-by-step explanation:

I hope that is useful for you :)

Answer:

hopefully u understand

Answer:

4 8/6

Step-by-step explanation:

5 = 30/6

1 = 6/6

5 - 1 = 4

4 6/6 + 2/6

4 8/6

Mark Brainliest please

Step-by-step explanation:

s it will be just know the right

Answer:

B. Is the right answer you can now because of the measure

Answer: 3x+0=6

3x=6

3x/3=6/3

cancel the common factor of 3

3x/3=6/3

divide x by 1

x=6/3

x=2

(2,0)

Step-by-step explanation:

Answer:

C. 4, 2, 1, 1/2, 1/4

Step-by-step explanation:

Geometric is normally either division or multiplication sequences. C has the division sequence of dividing by 2.

A would be an example of an arithmetic sequence.

The series 3, 6, 9, 12,... and  4, 2, 1, 1/2, 1/4 are geometric series.

Options A and C are the correct answer.

A geometric sequence is a sequence of numbers in which the ratio between consecutive terms is constant.

We have,

Looking at the options:

A.

3, 6, 9, 12,... is a geometric sequence with a common ratio of 2.

Each term is found by multiplying the previous term by 2.

B.

2, 3, 5, 9, 17 is not a geometric sequence because there is no constant ratio between terms.

C.

4, 2, 1, 1/2, 1/4 is a geometric sequence with a common ratio of 1/2.

Each term is found by multiplying the previous term by 1/2.

D.

3,-15, -33, -51, -69, is not a geometric sequence because there is no constant ratio between terms.

Therefore,

The series 3, 6, 9, 12,... and  4, 2, 1, 1/2, 1/4 are geometric series.

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Answer:

x=24

Step-by-step explanation:

Hello There!

Angle E and angle D are supplementary angles meaning that the sum of the two angles equals 180

So we setup an equation

180=2x+12+5x

step 1 combine like terms

5x+2x=7x

now we have

180=7x+12

step 2 subtract 12 from each side

12-12 cancels out

180-12=168

now we have

168=7x

step 3 divide each side by 7

7x/7=x

168/7=24

we're left with~ x=24

~TheMathWiz

Answer:

......... .............. .

Answer:

81

Step-by-step explanation:

Answer: 123

Step-by-step explanation:

Foe us to solve this, we have to find the lowest common multiple of 16, 20 and 24 first and then add 3 to the LCM. This goes thus:

Multiples of 16 = 16, 32, 48, 64, 80, 96, 112, 128, 144, 160

Multiples of 20 = 20, 40, 60, 80, 10, 120, 140, 160

Multiples of 24 = 24, 48, 72, 96, 120

Therefore, the Lowe's common multiple is 120.

We then add the remainder of 3 and this will give:

= 120 + 3

= 123

Answer:

[tex] \frac{3}{8} [/tex]

Step-by-step explanation:

[tex] \frac{3}{4} \div 2 \\ \\ = \frac{3}{4} \times \frac{1}{2} \\ \\ = \frac{3 \times 1}{4 \times 2} \\ \\ = \frac{3}{8} [/tex]

Answer:

1.25

Step-by-step explanation:

Answer:

The answer would be D

Step-by-step explanation:

In order for a problem to be infinite, it must be 0=0. But since this is equal, and can equal 0=0, it would be d

Answer:4 cm

Step-by-step explanation:

You would do 9cm - 5cm

Answer:

The answer is 4cm

Step-by-step explanation:

9-5=4

because the entire right side is 9 and the length until the missing portion is 5

Answer:

7300    

  Step-by-step explanation:

I got it right  

Melanie would need to invest an amount of $7300.

Compound interest is defined as the amount of interest which has been calculated on the principal amount as well as the amount accumulated over the previous period is also included.

The final amount in a compound interest can be calculated using the formula,

A = P (1 + [tex]\frac{r}{n}[/tex] )^(n t)

Here A is the final amount, P is the principal value, r is the rate of interest, n is the number of times interest is compounded per year and t is the number of years.

Given,

A = $19,600

r = 5.2% = 5.2/100 = 0.052

Since it is compounded monthly, n = 12

t = 19 years

Substituting,

19,600 = P (1 + [tex]\frac{0.052}{12}[/tex])^ (12 × 19)

19,600 = P (1.0043)^(228)

19,600 = P (2.68)

P = 19,600 / 2.68

P = 7313.0767 ≈ 7300 to the nearest hundred

Hence the value of the account will reach $19,600 n 19 years if she invest an amount of $7300.

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Answer:

Step-by-step explanation:

2x6yz