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2 years ago

Which figures below are similar? 1 and 2 2 and 3 2 and 4 1 and 4

Mathematics

1 answer:

Nana76 [90]2 years ago

3 0

Answer:

I think it is 1 and 4 :))

Step-by-step explanation:

I hope so it will helpful for u

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Each bag of pattern blocks contains 50 blocks. To make a class pattern, the teacher combines 4 bags of blocks. How many pattern

iVinArrow [24]

Each bag contains 50 pattern blocks so 4 bags is

50 x 4 = 200 pattern blocks

hope this helps

4 0

3 years ago

Help me I need the math problem

miss Akunina [59]

Answer:

y=4x-3

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

A study of peach trees found that the average number of peaches per tree was 725. The standard deviation of the population is 70

TEA [102]

Answer:

She needs to sample 189 trees.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1 - 0.95}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1 - \alpha$ .

That is z with a pvalue of $1 - 0.025 = 0.975$ , so Z = 1.96.

Now, find the margin of error M as such

$M = z\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

The standard deviation of the population is 70 peaches per tree.

This means that $\sigma = 70$

How many trees does she need to sample to obtain an average accurate to within 10 peaches per tree?

She needs to sample n trees.

n is found when M = 10. So

$M = z\frac{\sigma}{\sqrt{n}}$

$10 = 1.96\frac{70}{\sqrt{n}}$

$10\sqrt{n} = 1.96*70$

Dividing both sides by 10:

$\sqrt{n} = 1.96*7$

$(\sqrt{n})^2 = (1.96*7)^2$

$n = 188.2$

Rounding up:

She needs to sample 189 trees.

3 0

3 years ago

Evaluate x=-3, y=4, z=-5 Answers suggested below -17 41 23 -40 -58 -16

tatiyna

Answer:

2. -16

6. 23

7. -40

8. -17

9. 41

10. -58

6 0

2 years ago

What is 91,360 in expanded form

faltersainse [42]

Answer:

Expanded Notation Form:

91,360 =

90,000

+ 1,000

+ 300

+ 60

+ 0

Expanded Factors Form:

91,360 =

9 × 10,000

+ 1 × 1,000

+ 3 × 100

+ 6 × 10

+ 0 × 1

Expanded Exponential Form:

91,360 =

9 × 104

+ 1 × 103

+ 3 × 102

+ 6 × 101

+ 0 × 100

Word Form:

91,360 =

ninety-one thousand three hundred sixty

Hope this helps! mark me as brainliest if possible, you dont have too!

Step-by-step explanation:

6 0

3 years ago