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3 years ago

If two polygons are similar, then the ratios of their corresponding sides are

1 answer:

alexandr1967 [171]3 years ago

5 0

If two polygons are similar, then the ratio of the lengths of any two corresponding sides is called the scale factor. This means that the ratio of all parts of a polygon is the same as the ratio of the sides. ( pls give me brainliest!)

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1.What is the slope of line b? a.1/2 b.2 c.-1/2

Triss [41]

The slope for this equation is A. 1/2

4 0

3 years ago

A cell phone package charges $39 even if 0 minutes are used during the month. Each additional minute of talk time adds $0.07. Wh

zmey [24]

Answer:

total cost = $ 81

Step-by-step explanation:

It is given that the fixed cost is $ 39

and the cost per minute is $0.07

Let us assume the number of minutes used be x

we have

total cost = cost per minute × number of minutes used + fixed cost

we plug the given values, so we have

$total cost = 0.07 x+39$

we need to find the total cost for 10 hours used

x= 10 hours = 10(60) minutes = 600 minutes

so we have total cost for x= 600 minutes

$total cost = 0.07(600)+39$

$total cost =42+39 = 81$

hence the total cost = $ 81

3 0

3 years ago

)Marcus painted one-third of his bedroom in fourth-fifths of an hour. At this rate, how long would it take him the paint the ent

antoniya [11.8K]

1/3 = 4/5
2/3 = 4/5
3/3 = 4/5
-----------------
12/5 = 2 and 2/5 of an hour

2 hours and 24 mins
(i hope so, check my work)

4 0

4 years ago

G(x) = –(x + 3)2 – 4?

professor190 [17]

Answer:

g(x)=-x-5

Step-by-step explanation:

Simplify parenthesis by distribution:

g(x)=-x-3+2-4

Addition and Subtraction:

-3+2=-1, -1-4=-5

Finalize since no more simplification:

g(x)=-x-5

Pls give thx and brainliest wanna level up

6 0

3 years ago

Based on information from a large insurance company, 67% of all damage liability claims are made by single people under the age

svetoff [14.1K]

Answer:

We conclude that the insurance claims of single people under the age of 25 is higher than the national percent reported by the large insurance company.

Step-by-step explanation:

We are given that based on information from a large insurance company, 67% of all damage liability claims are made by single people under the age of 25.

A random sample of 52 claims showed that 43 were made by single people under the age of 25.

Let p = population proportion of claims made by single people

So, Null Hypothesis, $H_0$ : p $\leq$ 67% {means that the insurance claims of single people under the age of 25 is smaller than or equal to the national percent reported by the large insurance company}

Alternate Hypothesis, $H_A$ : p > 67% {means that the insurance claims of single people under the age of 25 is higher than the national percent reported by the large insurance company}

The test statistics that will be used here is One-sample z-test for proportions;

T.S. = $\frac{\hat p-p}{\sqrt{\frac{p(1-p)}{n} } }$ ~ N(0,1)

where, $\hat p$ = sample proportion of claims made by single people under the age of 25 = $\frac{43}{52}$ = 0.83

n = sample of claims = 52

So, the test statistics = $\frac{0.83-0.67}{\sqrt{\frac{0.67(1-0.67)}{52} } }$

= 2.454

The value of z-test statistics is 2.454.

Since in the question, we are not given the level of significance so we assume it to be 5%. Now, at 0.05 level of significance, the z table gives a critical value of 1.645 for the right-tailed test.

Since the value of our test statistics is more than the critical value of z as 2.454 > 1.645, so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region.

Therefore, we conclude that the insurance claims of single people under the age of 25 is higher than the national percent reported by the large insurance company.

6 0

4 years ago