Can someone tell me if my answer is correct (and correct it if it's not)?

What is the area of an EQUALATERAL triangle with a side length of 6? I'm getting 5.19615242, is this right?

Answers

Answer 1

Answer:

15.59.

Step-by-step explanation:

The altitude of equilateral triangle bisects the base

So 1/2 base = 3.

Altitude of the triangle is found from Pythagoras theorem:

= sqrt(6^2 - 3^2)

= sqrt27

Area = 1/2 base * altitude

=  3 * sqrt27

= 15.59


Related Questions

A gym membership is offered in January for 14.99 per month. If you pay upfront for the year, you are given a 15% discount on the monthly fee. How much money will you save after a year by paying upfront rather than monthly

Answers

Answer:

$27 approx

Step-by-step explanation:

Given data

Membership fee= 14.99 per month

for a year the fee is 14.99*12= 179.88

discount = 15%

=15/100*179.88

=0.15*179.88

=26.982

Hence for a year, you will save $27 approx

Determine the equation of the line with slope 3 that passes through the point M (1,2) 1) 3x + y = 1 2) 3x - y = -1 3) 3x - y = 1 4) x- 3y = -1

Answers

Answer:

3) 3x - y = 1

Step-by-step explanation:

m=3

(y-2) / (x-1) = 3

y-2 = 3(x-1)

y = 3x - 1

For x=4 simplify 2x+(6-3)2
I need help

Answers

Answer:

Step-by-step explanation:

What is the Next-Now rule and function rule for this table? 50 POINTS! BRAINLIEST TO CORRECT ANSWER.

Any unrelated answer is subject to getting their IP found and get reported.​

Answers

Answer:

Step-by-step explanation:

I'm not sure what the next now rule but I can give you the function.

y = 5 * 2^x

So the table is constructed by letting 0<=x<=8

For example if x is 3

y = 5 * 2^3

y = 5 * 8 = 40

When x = 3 does y come to 40? According to the chart it does.

Try another one

y = 5 * 2*6

y = 5 * 64

y = 320   Is that what the chart records? Yes it does.

If what the text now rule means is that from the current value of y, you can get the next value, then the formula would be

y_n = 2 * y_(n - 1)

y_7 = 2 * y_6

y_7 = 2 * 320

y_7 = 640

A checkbook balance sheet shows an initial balance for the month of $300. During the month, checks were written in the amounts of $25, $82, $213, and $97. Deposits were made into the account in the amounts of $84 and $116. What was the balance at the end of the month?

Answers

Answer:

your answer  is 200 if you add 84 and 116 but is you add 25 82 213 and 97 it will be 417

Step-by-step explanation:

The balance at the end of the month is $83.

Checkbook balance = $300

Amount withdrawn = $25 + 82 + $213 + $97 = $417

Amount deposited = $84 + $116 = $200

Therefore, the balance at the month end will be:

= $300 - $417 + 200

= $83

Read related link on:

https://brainly.com/question/20840160

- Charles used 1 cups of walnuts and
2 cups of cranberries to make
breakfast bread. How many cups of
walnuts and cranberries did he use
in all

Answers

Answer:

3 cups in all

Step-by-step explanation:

1+2+=3

Stacey worked on her garden for 4 3/4 hours.

Answers

Answer:

Number one and number 3 i think

Step-by-step explanation:

Maths question, will mark Brainliest! Find the area of a circle with a radius of 4.

Answers

Answer:

8[tex]\pi[/tex]

Step-by-step explanation:

area=[tex]\pi[/tex][tex]r^{2}[/tex]

[tex]\pi[/tex][tex]4^{2}[/tex]

16[tex]\pi[/tex]

since it is a semicircle, cut that number in half.

Answer:

25.12units squared

Step-by-step explanation:

A = [tex]\frac{\pi r^2}{2}[/tex] or [tex]\frac{3.14r^2}{2}[/tex]

r = 4

3.14 x 4^2 = 50.24

50.24/2 = 25.12

Determine the intercepts of the line.
y-intercept:
x-intercept:
y
1
0.8
0.6-
0.44
0.2
x

+
0.2
0.6
2.4
-0.8
0.8
-0.6 -0.4 -0.2
-0.2-
-0.47
-0.6
-0.8

Answers

Answer:

y-intercept= (0, 0.4)

x-intercept = (0.3, 0)

Step-by-step explanation:

The intercept is where the line crosses the axis, and a coordinate is written out as, (x,y).

With this knowledge in mind, for the y-intercept, the x coordinate would be 0, and the y coordinate would be 0.4, which is where it crosses the y axis. This would make the y-intercept (0, 0.4).

For the x-intercept, the y coordinate would be 0, and the x coordinate would be where the line crosses the axis, making it 0.3. With these numbers and coordinates in mind, the coordinate for where the line intercept the x axis is (0.3, 0).

Which value of y will make the equation true? -3 y= 18​

Answers

Answer:

-6

Step-by-step explanation:

-3x-6=18

Answer:

Y = -6

Step-by-step explanation:

Solve for y

-3y = 18

divide both sides by -3

y = -6

Help as soon as possible, please.

Answers

Answer:

8 units

Step-by-step explanation:

Let the center of the circle be point O.

Then

EC + EO = 13EC = 13 - EO

The length of EO is the side of triangle OEB.

Use Pythagorean theorem:

EO² + EB² = OB²EO² + 12² = 13²EO² = 169 - 144EO² = 25EO = √25EO = 5

Find the value of  EC:

EC = 13 - 5 = 8

convert the metric measurements into inches,correct to the nearest inch . 4,2 m​

Answers

Answer:

165 inches

Step-by-step explanation:

multiply the length value by 39.37

Can whoever answers this answer one of the questions on my account I have like 20 minutes to answer them.

Answers

Answer:

What-

Step-by-step explanation:

Answer: What?

Step-by-step explanation:

Joy Wigens, who works at Putnam Investments, received a check for $2,670. She deposited 1/3 of the check in her Citibank account. How much money does Joy have left after the deposit?

Answers

Answer: $1,780

Step-by-step explanation:

Joy Wigens deposited 1/3 of the check of $2,670 that she received in her Citibank account.

The amount she deposited in her Citibank account was:

= 1/3 * 2,670

= $890

The amount she is left with after this deposit will therefore be:

= Check amount - deposit at Citibank

= 2,670 - 890

= $1,780

10 points and king crown extra 5+ points and pplease go to pic and answer it

Answers

Answer:

the answer is 30x+33

Simplify: 4 x 3^2 - 3+ 5x2 = 0 OA. 33 OB. 43 O c. 36 O D. 58 O E 34​

Answers

4 x 3^2 - 3+ 5x2

4 x 9 - 3 + 10 = 0

36 - 3 + 10  

33 + 10

43

Answer : 43

Find the distance between the two points
(-2,5) and (-3,7)

Answers

Answer:

[tex]\sqrt{5}[/tex]

Step-by-step explanation:

Answer :√5

Decimal form:2.23606797...

Step-by-step explanation:

5. For the function y = 0.5 - 6%, as I approaches negative infinity, what do the y-values approach?
O AO
O B. 0.5
O C.3
OD.6

Answers

Answer:

B. 0.5

in the equation 0.5 * 6^x the 0.5 represents the approach on the y value

Evaluate h(16) for the function h(x) = -|x/-4|

Answers

Answer: h(16)=-4

Step-by-step explanation:

Given

h(x)=-|x/-4|

Substitute the value into the function

h(x)=-|x/-4|

h(16)=-|(16)/-4|

h(16)=-|-4|

h(16)=-4

Hope this helps!! :)

Please let me know if you have any questions

Suppose you invest $10,000 in a mutual fund that earns 6% annual interest. What is the value of your investment 30 years later? Show both the value and evidence of the thinking you used to calculate the value of the investment.

Answers

Answer:

$57400

Step-by-step explanation:

Given data

P= $10,000

R= 6%

T= 30 years

Let us Assume the investment is compounded Anually

A= P(1+r)^t

A=10000(1+0.06)^30

A=10000(1.06)^30

A=10000*5.74

A=$57400

Hence the Final Amount after 30 years compounded anually is $57400

Julio has $40.00 to rent bikes for himself and a friend for 5 hours. Each bike
rental costs $3.25 per hour.

Answers

Step-by-step explanation: if its asking  how much money he spends in total you multiply

$3.25 x 5 = 16.25

Answer:

They will spend $16.25 on each bike for 5 hours, $16.25 x 2 = $32.50. They will spend $32.50 and will be left with $7.50.

Step-by-step explanation:

what is the value of x
10= 3x - 6
X=

Answers

Answer:

[tex]x= \frac{16}{3}[/tex]

Step-by-step explanation: Can i get brain plz!

add 6 to both sides of the equation
simply/ 16=3x
divide both sides by 3
x = 16/3

Jada was using square stickers with a side length of 3/434 inch to decorate the spine of a photo album. The spine is 10 1/21012 inches long. If she laid the stickers side by side without gaps or overlaps, how many stickers did she use to cover the length of the spine?

Answers

Answer: The number of stickers she used to cover the length of the spine = 14.

Step-by-step explanation:

Given: The length of spine = [tex]10\dfrac12[/tex] inches  = [tex]\dfrac{21}{2}[/tex] inches

Length of each sticker = [tex]\dfrac34[/tex] inch

If she laid the stickers side by side without gaps or overlaps, the number of stickers she use to cover the length of the spine = [tex]\text{(Length of spine)}\div (\text{Length of each sticker})[/tex]

[tex]=\dfrac{21}{2}\div\dfrac{3}{4}\\\\=\dfrac{21}{2}\times\dfrac{4}{3}\\\\=\dfrac{7\times2}{1}=14[/tex]

The number of stickers she used to cover the length of the spine = 14.

If a van traveled 240 miles in 4 hours how far could tha van travel in 5 hours

Answers

240/4=60 so 60x5=300. Traveled 300 miles in 5 hours
It’s 300 miles yuh yuh

A student answered 86 problems on a test correctly and received a grade 98%. How many problems were on the test, if all the problems were worth the same number of points? (Round to the nearest whole number)

Answers

Answer:

88 total questions

Step-by-step explanation:

Answer:

88 problems

Step-by-step explanation:

86/0.98 = 87.76 ≈ 88

ayudaaa es para hoy ;-;

Answers

múltiplos de 3: 6-9-12-15-18-21-24. etc

múltiplos de 3 que también son de 6:12-18-24.etc

múltiplos de 6: 12-18-24-30-36-42-48-54-. etc

múltiplos de 10:20-30-40-50-60-70-80.etc

múltiplos de 5:10-15-20-25-30-35-40-45-50-55.etc

múltiplos de 5 que tambien son de 10:20-30-40-50. etc

Problem 4: As a salesman you are paid $250 per week plus $70 per sale. This week you want you
pay to be at least $1,200. How many sales must you make to reach your goal?
Answer
12
13
14
15
16

Answers

Answer:

14 sales

Step-by-step explanation:

1,200-250=950

70×14=970

We first need to subtract our normal pay out of the expectation.

1200-250=950 dollars

These 950 dollars have to be made from sales, and if each sale gives you 70 dollars, we just need to do simple division.

950/70=about 13.57

This meant that if we get 13 sales, we are not quite there at the goal yet, so we need to round up. Getting 14 as our answer.

what is the only trigonometry function that can have a fraction greater than one and why

Answers

Answer is 98 because i love cheese

Solve 45x - 56 > 9x + 25 where x is a real number

Answers

Answer:

x = >9/7

Step-by-step explanation:

Suppose that you have $5,000 to invest. Which investment yields the greater return over a 10 year period: 7.74% compounded daily or 7.8% compounded quarterly? Find the total amount of the investment after 10 years if $5,000 is invested at 7.74% compounded daily. $ (Round to the nearest cent as needed.)​

Answers

Answer:

We should invest in 7.74% compounded daily as it yields a higher return.

The total investment after 10 years is $10,841.22.

Step-by-step explanation:

a.) at 7.74% compounded daily

[tex]final = principal(1 + \frac{i}{m} )^{m \times n} \\ = 5000(1 + \frac{0.0774}{365} )^{365 \times 10} \\ = 10 \: 841.2235[/tex]

I assumed there are 365 days in a year.

b.) at 7.8% compounded quarterly

[tex]final = principal(1 + \frac{i}{m}) ^{m \times n} \\ = 5000 (1 + \frac{.078}{4} )^{4 \times 10} \\ = 10 \: 762.2505[/tex]

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