Mathematics High School

Find the area of triangle ABC.
Give your answer correct to 1 decimal

Answers

Answer 1

Answer:

let

a=9cm

b=8cm

c=10cm

Step-by-step explanation:

now

s=(a+b+c)/2=(9+8+10)/2=13.5

area of traingle=√(s(s-a)(s-b)(s-c))=√(13.5(13.5-9)(13.5-8)(13.5-10))=34.197cm²

Related Questions

Can someone explain the process of getting to Angle A? I know the answer is 44.1 but I need to show my work so can someone show me the process of getting the answer and please explain! Thank you!!

Answers

Answer:

Step-by-step explanation:

First you have to calculate CB in order to use sin law to calculate ∠A

CB=[tex]\sqrt{18.4^{2} -13.2^{2} }[/tex]

CB=12.8(correct to nearest tenth)

After that, use sin law to calculate ∠A,

[tex]\frac{18.4}{sin90} =\frac{12.8}{sinA}[/tex] or [tex]\frac{sin90}{18.4} =\frac{sinA}{12.8}[/tex]

sinA=0.695...

A=44.079...

=44.1(corrext to the nearest tenth)

Is that clear enough for you?

Mark, Paul and Brian share some sweets in the ratio 1:3:5. Mark gets 14 sweets. How many
did Brian get?

Answers

Answer:

Step-by-step explanation:

hope it helps

Add up all the ratio numbers, so 1+3+5=9
Then from the total number of sweets (14) divide by 9 which gives you 1.5
Then 1.5x Brian’s share (5) gives you 7 sweets

I need help! ASAP please!

Answers

Answer:

60 f+80=287

Step-by-step explanation:

Please help for math in 2 min or less

Answers

pretty sure the area is 9

work out 1/5 of 80 =

Answers

Answer:

Step-by-step explanation: your welcome

I need help solving these two questions
3x-5x=0
x-5x=-10

Answers

Answer:

x=0 and x=5/2

Step-by-step explanation:

Combine like terms.

-2x=0

x=0/-2

x=0

-4x=-10

x=-10/-4

x=5/2

A shoe store uses a markup rate 40% when determining the retail price of its items. If the store pays $42.25 for a pair of shoes wholesale, what will be the retail price of that pair of shoes?

Answers

$59.15

42.25 x .4 = 16.90
42.25 + 16.90 = 59.15

Write down the gradient of the line
(1 Point)
y=1/2x

Answers

Answer:

[tex]\frac{1}{2}[/tex]

Step-by-step explanation:

The equation of a line in point- slope form is

y = mx + c ( m is the slope ( gradient ), c is the y- intercept )

y = [tex]\frac{1}{2}[/tex] x ← is in point- slope firm

with gradient = [tex]\frac{1}{2}[/tex]

-5x + y = -1x
10x - 2y = 2

Answers

Answer: Below is the first one

Step-by-step explanation: Second one is right here x=1/5+y/5

I need help with -3x + 6 = 24

Answers

Answer:

x = -6

Step-by-step explanation:

The sum of two numbers is -18. If the first number is 10, which equation represents this situation, and what is the second number?
ОА.
The equation that represents this situation is 10 - X= -18. The second number is 28.
OB. The equation that represents this situation is 10 + x = -18. The second number is -28.
OC.
The equation that represents this situation is x - 10 = -18. The second number is -8.
OD
The equation that represents this situation is -10 + x = -18. The second number is -8.

Answers

Step-by-step explanation:

OB. The equation that represents this situation is 10 + x = -18. The second number is -28. this is the answer cause the sum means +

PLEASE HELP ME ON THIS THE ANSWERS ARE 1/3 cm/s, 1/2 cm/s, 2/3 cm/s, and 3/2 cm/s

Answers

Answer: 3/2 cm per second

========================================================

Explanation:

We could compute the slope of this line to get the answer, or we could simply compute y/x. This shortcut only works because the line goes through the origin. If the line didn't go through the origin, then we would have to use the slope formula.

The unit rate is y/x = 9/6 = 3/2 cm per second. I used the point (9,6) to compute the unit rate.

We can think of the fraction 3/2 as 1.5, so the unit rate is equivalent to 1.5 cm/sec.

The populations and land areas of four cities in Texas are shown. Which statements are true? Check all that apply. The population density for City B can be found using the ratio 48,592 : 26. The population density for City D can be found using the ratio 258 : 196,429. City A has the greatest population density of the four cities. The population density of City B is greater than that of City C. City D has the lowest population density of the four cities.

Answers

Answer:

The population density for city b would be 48,592 ÷ 26

The population density for city b is more than the city c

And, the city d contains the lowest population density

Step-by-step explanation:

The computation is given below:

As we know that

Population density = Population ÷ Area

For city A = 2,195,914 ÷ 1,553 = 1413.98

For city B = 48,592 ÷ 26 = 1868.15

For city C = 1,257,676 ÷ 999 = 1258.93.

For city D = 196,429 ÷ 258 = 761.35.

The following are the true statements:

The population density for city b would be 48,592 ÷ 26

The population density for city b is more than the city c

And, the city d contains the lowest population density

Answer:

A, D, E

Step-by-step explanation:

Just did it on edge!

Below is a table of revenue and cost, in thousands of dollars, of a business. Use the best fit line to estimate the number of months until the business is no longer profitable.

Answers

Answer: It's 18

Step-by-step explanation: i took it and got it right

Gaby has 89 friendship bracelets. She has 4 friends, Lulu, Brianna, Brittany and Mariah. When, they get the bracelets are they all going to have the same amount? Why or why not?

HELP MY BROTHER HES 8 YRS OLD!!!!! IF YOU ANSWER IT CORRECTLY YOU WILL GET BRAINLIEST

Answers

Answer:

They will not get the same amount of bracelets

Step-by-step explanation:

You cannot divide 89 by 4 to get an equal number (4 is not a factor of 9)

Answer:

3 of the friends plus Gaby will get 17 bracelets and 1 of them will get 4/5 of the bracelets

Step-by-step explanation:

89 divide by 5 = 17.8

-6x - y =23
y = 4x + 7

Answers

Answer:

x = -28/39, y = 7/39

Step-by-step explanation:

Graph both and find the corresponding points.

need help plz help me

Answers

Answer:

The last one t/5-6=-3

Step-by-step explanation:

All you have to do is plug in 15 to each equation, knowing this if you add 15 into this equation you would get 15/5-6=-3 and this is true because 15/5=3, 3-6=-3!

I hope this helps and have a great day!

In the rectangle
P
Q
R
S
, the side
P
Q
is of length
2
and the side
Q
R
is of length
4
.

Points
T
and
U
lie inside the rectangle so that
P
Q
T
and
R
S
U
are equilateral triangles.

What is the area of the quadrilateral
Q
R
U
T
?

Answers

Answer:

maths challenge>

Step-by-step explanation:

samee

Eiman borrowed $8000 at a rate of 14.5%, compounded semiannually. Assuming she makes no payments,
how much will she owe after 6 years?
Do not round any intermediate computations, and round your answer to the nearest cent.?

Answers

Answer:

1,717,351cents

Step-by-step explanation:

Using the compound interest formula

A = P(1+r/n)^nt

P = 8000

r = 14.5% = 0.145

n = 6/12 = 1/2 (semi annually)

t = 6years

Substitute

A = 8000(1+ 0.145/0.5)*(0.5)(6)

A = 8000(1+0.29)^3

A = 8000(1.9)^3

A = 8000(2.146689

A = 17,173.512

Hence the amount owned to the nearest cent is 1,717,351cents

Most complicated and written out explanation for 1 plus 1 can get 20 points and brainliest.

Answers

Answer:

looking at the equation one plus one we see there can be many answers for example we can take one plus ine and change it to a number of different questions including but not limited to 1+1 1-1 1/1 1x1 1^1 etc looking at other results we can then determine tat 1+1=2 all though alternative answers could be present

Step-by-step explanation:

19. Find the measure of angle ABC.

Answers

Answer:

Step-by-step explanation:

6x+6x+8x=180 (∠ sum of Δ)

20x=180

x=9

∠ABC=8(9)

=72

Which ones are correct will give brainlist!!

Answers

Answer:

A and C and E

Step-by-step explanation:

All these answers are true because the line is always constant, the slope is going down so therefore negative, and the equation is correct because you can fill in any value and they would be correct.

What is the difference between the mean of the population and the mean of the sample? 0.24 0.36 2.40 2.64

Answers

Answer: 0.24

Step-by-step explanation:

Answer:

0.24

Step-by-step explanation:

i took the test i got it right!

The Student Advisory Council here at PC sells red and pink carnations every year for Valentine's Day. The number of red carnations sold was 3 more than 2 times the number of pink carnations sold. Red Carnations were sold for $ 0.50 each and Pink Carnations sold for $0.75 exh . The club made $600.00 . How many of each carnation were sold?

Answers

Answer:

The number of :

Red carnations sold = x = 687 carnations

Pink carnations sold = y = 342 carnations

How many of each carnation were

Step-by-step explanation:

Let us represent

The number of :

Red carnations = x

Pink carnations = y

The Student Advisory Council here at PC sells red and pink carnations every year for Valentine's Day.

The number of red carnations sold was 3 more than 2 times the number of pink carnations sold.

x = 3 + 2y .....Equation 1

Red Carnations were sold for $ 0.50 each and Pink Carnations sold for $0.75 exh . The club made $600.00 .

$0.50 × x + 0.75 × y = $600

0.5x + 0.75y = 600...... Equation 2

Using substitution method:

Let us substitute, 3 + 2y for x in Equation 2

0.5(3 + 2y) + 0.75y = 600

1.5 + y + 0.75y = 600

y + 0.75y = 600 - 1.5

1.75y = 598.5

y = 598.5/ 1.75

y = 342 carnations.

Solving for x

x = 3 + 2y .....Equation 1

x = 3 + 2(342)

x = 3 + 684

x = 687 carnations

Therefore, The number of :

Red carnations = x = 687 carnations

Pink carnations = y = 342 carnations

Which ones are true?

Answers

Answer:

its box 1,3,5

Step-by-step explanation:

Solution of this system of equations. (Write it as a point)

Answers

(1,5) I think, because that’s where the points intersect

Lainey bought a set of 202020 markers for \$6$6dollar sign, 6.
What is the cost of 111 marker?

Answers

Answer:

$666

Step-by-step explanation:

6*111

= 666

Answer:

Step-by-step explanation:

YES

6a-1÷7=4. . . . . . . . . . .. . .

Answers

Answer:

a=29/42

Step-by-step explanation:

6a-1÷7=4

first write the division as a fraction

6a-1/7=4

add 1/7 to each side

6a=4+1/7

which is equal to

6a=29/7

divide both sides by 6

a=29/42

2) k+k-72
Greatest common factor?

Answers

Answer:

2!!

Step-by-step explanation:

The greatest common factor between these terms is 1. Since we do not know the value of k we can only rightly assumes that each term is only divisible by 1 and itself.

Can someone help me (7th grade science) need to be done as soon as possible

Answers

Answer:

oouu I'm in 7th grade science and I already did this I can help!

Other Questions

Below are several transactions that took place in Seneca Company last year: Paid suppliers for inventory purchases. Bought equipment for cash. Paid cash to repurchase its own stock. Collected cash from customers. Paid wages to employees. Equipment was sold for cash. Common stock was sold for cash to investors. Cash dividends were declared and paid. A long-term loan was made to a supplier. Income taxes were paid to the government. Interest was paid to a lender. Bonds were retired by paying the principal amount due. Required: Indicate how each of the above transaction would be classified on a statement of cash flows. As appropriate, place an X in the Operating, Investing, or Financing column. Also, place an X in the Cash Inflow or Cash Outflow column. Please help its urgent!!!!!! Leah leaves school to go home. She walks 5 blocks north and then 8 blocks west. How far is Leah from the school? Which education or training would best benefit graders, sorters, and equipment operators in the food product and processing system?a bachelors degreea masters degreean internshipa PhD PLEASE HELP FOR 20 POINTS, Yesterday, Chang planted 6 trees that were each 8 feet tall in his yard. Chang projects the trees to grow at the following annual rates over the next 5 years. Assume that x represents the amount of years from when Chang planted the trees. Which of the following equations represent the height of each of the trees in 5 years? Select all that apply. Miguel Alvarez in the accounting department at Baumer Company has provided the following information: Cost per Unit Cost per PeriodDirect materials $6.25Direct labor $3.20Variable manufacturing overhead $1.20Fixed manufacturing overhead $13,200Sales commissions $1.20Variable administrative expense $0.50Fixed selling and administrative expense $3,300The incremental manufacturing cost that the company will incur if it increases production from 5,500 to 5,501 units is closest to:_____ Find the values of x and y. use the given functions to answer the question.f(x)=x^2+2x-5g(x)--3x^2-4x+1what is f(x)-g(x) Question 21Why is the Directory overlooked in most textbooks?There was less chaos during the time of the DirectoryNothing happened during the time of the Directory,O France was overrun by other countries during the time of the DirectoryThere was too much chaos to untangle during the time of the Directory. Help me plzzzzzzzzzz Help me and you get good luck for the rest of 2021 XDJohn bought 15 cookies and ate 3 of them. He ate ____% of the cookies. (Make sure to enter the answer using numbers only. Do not enter special characters such as the percent symbol.) Type using number words. (Remember to use a hyphen in your answer where needed.) 355 would using a strainer be filtration? I need someone to write down the steps please and solve 4 for me please i will fail Which two parts of sedimentary rocks formation include the breakdown and carrying away of existing rock Write down the next 2 terms of this quadratic sequence:1, 3, 7, 13, ..., ... How you Can find the area of a composite figure? Determine whether the following is an example of a sampling error or a non sampling error. A psychiatrist surveyed 8000 people to see the proportion who had seen a psychiatrist at least once in their lives. Unfortunately, there was confusion amongst the respondents about the difference between a psychologist and a psychiatrist and the recorded proportion was higher than it should have been due to this confusion. Which number will you read 'two-tenths'? Madison makes 4 types of hair ribbons. She makes 3 of each type of ribbon. Howmany hair ribbons does Madison make?A 12B. 10C. 9D. 7

Find the area of triangle ABC. Give your answer correct to 1 decimal

Answers

Related Questions

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Find the area of triangle ABC.
Give your answer correct to 1 decimal