3 years ago

Miranda enlarged a picture twice as shown below, each time using a scale factor of 3.

Mathematics

1 answer:

Grace [21]3 years ago

5 0

Answer:

a,c,d

Step-by-step explanation:

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The values in the table represent a linear function. What is the common difference of the associated arithmetic sequence

Helga [31]

Answer: 17

21-4=17

4+17=21
21+17=38 and so on..

7 0

3 years ago

Mya's dog weighs 42.8 pounds. Lydia's dog weighs 2.9

expeople1 [14]

Answer:

124.12 pounds

Step-by-step explanation:

42.8 x 2.9

= 124.12

= 124.12 pounds

7 0

3 years ago

A study sampled 350 upperclassmen (Group 1) and 250 underclassmen (Group 2) at high schools around the city of Houston. The stud

iris [78.8K]

Answer:

$-0.048$

Do not reject $H_0:P_1-P_2=0$

Step-by-step explanation:

From the question we are told that

Sample size $n_1=350$

Sample size $n_2=250$

Sample proportion 1 $\hat P= \frac{25}{350} =>0.07$

Sample proportion 2 $\hat P= \frac{19}{250} =>0.076$

95% confidence interval

Generally for 95% confidence level

Level of significance

$\alpha = 1-0.95=>0.05$

$\alpha /2=\frac{0.05}{2} =>0.025$

Therefore

$Z_a_/_2=1.96$

Generally the equation for confidence interval between $P_1 - P_2$ is mathematically given as

$(\hat P_1-\hat P_2)\pm Z_a_/_2\sqrt{\frac{\hat P_1(1-\hat P_1)}{n_1}+\frac{\hat P_2(1-\hat P_2)}{n_2} }$

$(0.07-0.076)\pm 1.96\sqrt{\frac{0.07(1-0.07)}{350}+\frac{0.076(1-0.076)}{250} }$

$(0.07-0.076)\pm 1.96\sqrt{4.66896*10^-^4 }$

$(-0.006)\pm 0.042$

$(-0.006)- 0.042=>-0.048$

$(-0.006)+ 0.042=>0.036$

Therefore

Confidence interval is

$-0.048$

Conclusion

Given the confidence interval has zero

Therefore do not reject $H_0:P_1-P_2=0$

6 0

3 years ago

Angela has 63 eggplants in 21 rows of her eggplant garden.

Lorico [155]

Answer:

A. 27

Step-by-step explanation:

21 x 3 = 63

9 x 3 = 27

6 0

3 years ago

Give pedro jogs every 4 days and Logan jogs every 6 day and I jog together how many days will it take for them to jog again toge

Vinvika [58]

Answer:

8 and 12 days

Step-by-step explanation:

to jog again=double

4x2=8

6x2=12

7 0

3 years ago