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leva [86]
2 years ago
8

For brainiest:):):):)::):):):)

Mathematics
1 answer:
scZoUnD [109]2 years ago
8 0

Answer:

The unit rate is accurately \frac{1}{4} (km/minute)

Step-by-step explanation:

(1,1/4) means that the vehicle traveled 1/4 km within 1 minute.

The unit rate for this problem is also known as the speed of the vehicle.

So to find the speed, you need to use distance over time.

---> Unit rate: \frac{1}{4}\\ / 1 = \frac{1}{4} (km/minute)

(2,1/2) means that the vehicle traveled 1/2 km within 2 minutes.

Same process:

---> Unit rate: \frac{1}{2} / 2 =

Because of this, the unit rate is accurately \frac{1}{4} (km/minute)

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56.27 in expanded form​
Lana71 [14]

Answer:

Step-by-step explanation:

 56.27 =

 50  

+ 6  

+   0.2

+   0.07

Expanded Factors Form:

   56.27 =

 5 × 10  

+ 6 × 1  

+ 2 ×   0.1

+ 7 ×   0.01

Expanded Exponential Form:

 56.27 =

5 × 101

+ 6 × 100

+ 2 × 10-1

+ 7 × 10-2

Word Form:

56.27 =

fifty-six and twenty-seven hundredths

5 0
2 years ago
-4004 + 2023 – 24x2 – 2 / – 2x2 + 2x + 1?
Kamila [148]

Answer:

388.5/x

Step-by-step explanation:

multiply:

(-4004+2023-48-2)/ -4 + 2x +1

Simplify:

-2031/ -3 +2x

divide by -3

677/2x

388.5 / x

as simple as you can go

hope this helps!

5 0
3 years ago
The director of the library calculates that 29% of the library's collection is checked out. If the director is right, what is th
marusya05 [52]

Answer:

The probability that the proportion of books checked out in a sample of 412 books would differ from the population proportion by less than 4% is P=0.9255.

Step-by-step explanation:

The population's proportion is \pi=0.29

If we take a sample of 412 books (n=412), we have a standard deviation of the sampling distribution of:

\sigma_M=\sqrt{\frac{\pi(1-\pi)}{n}}=\sqrt{\frac{0.29*0.71}{412}}=\sqrt{0.0005} =0.0224

We have to calculate the probabilty that the sample proportion will be between 0.25 and 0.33.

z_1=(0.25-0.29)/0.0224=-0.04/0.0224=-1.7857\\\\z_2=1.7857\\\\\\P(0.25

8 0
3 years ago
Julian wrote this number pattern on the board:
geniusboy [140]

Answer:


Step-by-step explanation:


10, 24 and 38 are composite numbers.


(10 can be divided by 5 and 2; 24 can be divided by 8, 3, 12 and 2; 38 can be divided by 19 and 2).


The others are prime numbers.

3 0
3 years ago
Please answer this question, I will mark brainlest
adoni [48]

Answer:

B: 12

Step-by-step explanation:

length of one side =150

length of one path =12.5

Number of patches= 150 / 12.5

Number of patches = 12

hope it helps

please mark me as brainliest

5 0
2 years ago
Read 2 more answers
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