Find the area of the triangle pictured above.

Answer:

Step-by-step explanation:

Rate of change = the difference in y/the difference in x.

20 - 6.50/4 - 1 = 13.5/3 = 4.5/1

24.5 - 20/5 - 4 = 4.5/1

33.5 - 24.5/7 - 5 = 9/2 = 4.5/1

The rate of change is 4.5.

Answer:

At least 26 questions to get around an 82% not 25 because that equals 78%

Step-by-step explanation:

Answer:

Kevin answered 24 questions correctly.

Kevin would have to answer 25.6 questions correctly to get more than 80%.

Answer:

b

Step-by-step explanation:

Answer:

52.7

Step-by-step explanation:

average=add up the number divide by the number of numbers

70+60+50+42.5+41=263.5

263.5/5=52.7

Answer:

X+y=17

X=y+13

y+13+y-13=17-13

2y. =4

y=2.

X=2+13

X=15

the two numbers are 2 and 15

Answer:

Step-by-step explanation:

a 30-60-90 right triangle is a right triangle because of the 90

the 30 and the 60 have to make 90 too since traingles make 180

30 + 60 + 90 = 180

so 30-60-90 is a right triangle.

Right triangles also can use pythagoran theorem, so the angle ratio is

30-60-90

but the side ratio is

a² + b² = c²

Answer:

Step-by-step explanation:

This is an arithmetic sequence because each term subtracted by the previous term is a constant called the common difference.

an=a+d(n-1) where a is the initial term and d is the common difference

a=-20 and d=-16+20=4 so

an=-20+4(n-1)

an=4n-24

The sum of an arithmetic sequence is the average of the first and last terms times the number of terms

sn=(a1+an)(n/2)

s30=(-20+4(30)-24)(30/2)

s30=1140

The sum of the first 30 terms of the sequence –20, –16, –12, –8, –4, . . . is obtained being 1140

Arithmetic sequence is a sequence where each consequtive term has a common constant difference.

An arithmetic sequence, therefore, is defined by two parameters, viz. the starting term and the common difference.

Let the starting term be 'a' and common difference be 'd', then we get the arithmetic sequence as:

[tex]\rm a, a+d, a+2d, \cdots[/tex]

The sum of the first 'n' terms of that sequence is is:

[tex]\rm a + (a+d) + (a+2d) + \cdots + (a+(n-1)d) = \dfrac{n}{2}[2a + (n-1)d ][/tex]

For this case, the series –20, –16, –12, –8, –4, . . . starts from a = -20,

and each next term is obtained by adding d = 4 in previous term.

Thus, the sum of the first n = 30 terms of that sequence is evaluated as:
[tex]S_n = \dfrac{n}{2}[2a + (n-1)d ]\\\\S_{30} = \dfrac{30}{2}[2(-20) + (30-1)(4) ] = 15(-40 +116) = 15 \times 76 = 1140[/tex]

Thus, the sum of the first 30 terms of the sequence –20, –16, –12, –8, –4, . . . is obtained being 1140

Learn more about arithmetic sequence here:

https://brainly.com/question/3702506

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Answer:

The margin of error for a 95% confidence interval is 0.199.

Step-by-step explanation:

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

[tex]\alpha = \frac{1 - 0.95}{2} = 0.025[/tex]

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

That is z with a pvalue of [tex]1 - 0.025 = 0.975[/tex], so Z = 1.96.

Now, find the margin of error M as such

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.

Assume that the population standard deviation is 2.8.

This means that [tex]\sigma = 2.8[/tex]

760 millennials (18- to 33-year-olds)

This means that [tex]n = 760[/tex]

Give the margin of error for a 95% confidence interval.

[tex]M = z\frac{\sigma}{\sqrt{n}} = 1.96\frac{2.8}{\sqrt{760}} = 0.199[/tex]

The margin of error for a 95% confidence interval is 0.199.

The answer is 19/14x + 97/56

Answer:

not sure

Step-by-step explanation:

i'm confused

Answer:

12  and square

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

Answer:

2%

Step-by-step explanation:

Given data

Principal=$2300

Simple interest=$906.20

Time= 19.7years

Required

The rate in percentage

We know that

SI=PRT/100

substitute

906.20=2300*R*19.7/100

906.20=45310R/100

cross multiply

906.20*100= 45310R

90620= 45310R

R= 90620/45310

R=2%

Hence the rate is 2%

Answer:

31.4

Step-by-step explanation:

taking π = 3.14

circumference = 3.14 × 10

Answer:

pythagorean theorem is the way to go

a squared plus b squared =c squared

15 squared plus 8 squared is equal to c squared

so i believe the answer is 17

Step-by-step explanation:

15 squared is 225

225 + 64

64 is 8 squared

that is 289

THE ANSWER IS 17

Answer:

i cant seee the picture

Step-by-step explanation:

can u retake it

Answer: m ≥ 13

m + 7 ≥ 20

Step-by-step explanation:

you basically subract 7 from 20 and 7

7-7 will cancel each other out 20-7 will give you = 13

m ≥ 13 is your answer

Answer:

Circumference: 69.11 m

Area: 380.13 m

Cos Milky said it. Trust Milky. Milky Smart.

Answer:

Step-by-step explanation:

Use formula:

1)

Correct choice is B

2)

Correct choice is A

Answer:

B

Step-by-step explanation:

Answer:

ŷ = -0.07637X + 61.36874

Step-by-step explanation:

Score, x :

545

595

640

675

705

750

Interest %, y:

18.982

17.967

12.218

8.612

6.680

5.150

Using the ordinary least square regression calculator :

The equation of best fit obtained is :

ŷ = -0.07637X + 61.36874

Slope = - 0.07637 (depicts a negative relationship between the variables).

Intercept = 61.36874

Score, X = explanatory variable ; Interest rate, Y = response variable

Answer:

19/1

Step-by-step explanation:

Hi,

Any whole number written as a fraction is simply that number over one :)

If you were to write 80 as a fraction, it would be 80/1.

And so on...

I hope this helps <3

Answer:

i think x=4

Step-by-step explanation:

Answer:

yeah it's x = 4

Step-by-step explanation:

Answer:

$600

Step-by-step explanation:

[tex]20\% \: of \: 750 \: is = [/tex]

[tex] \frac{20}{100} \times 750[/tex]

[tex] = 150[/tex]

Subtract 150 from 750 to get discount price

[tex]750 - 150 \\ = 600[/tex]

Therefore, the discount price is $600

Step-by-step explanation:

cooool

so

what's the question?

Answer:

Step-by-step explanation:

Given system:

Divide the first equation by 2 and rearrange:

We got the same equation with the second one. It means we have two of the same lines overlapping.

This gives us infinitely many solutions.

Answer:

the sum of all even number from 0 to 420 is 175980