Class : IX
Subject : Mathematics Assignment 7: Area of Triangles
Formula)
1. The sides of a triangle are 8cm, 15cm and 17cm, find its perimeter and its area. Also find the lengt
altitude drawn on the side with length 17cm.

Answers

Answer 1

Step-by-step explanation:

a=8cm

b=15cm

c=17cm

s=a+b+c/2

 =8+15+17/2

 =40/2

 =20

Using heron's formula,

ar. of triangle= √s(s-a)(s-b)(s-c)

                     =√20(20-8)(20-15)(20-17)

                     =√20×12×5×3

                      =√2×2×5×2×2×3×5×3

                      =2×2×3×5

                      =60cm²

On side 17cm,

Ar. of triangle=1/2×b×h

60=1/2×17×h

∴h=60×2/17

    =7.05 cm

Answer 2

Answer:

c

Step-by-step explanation:


Related Questions

A rectangular dining room is 7 meters long and 3 meters wide. What is its area?

Answers

Answer:

7x3 or 21

Step-by-step explanation:

Answer:

21 feet.

Step-by-step explanation:

You calculate area by using Length x Width. 7x3 = 21.

I will mark brainiest

Answers

Answer:

C. 63 [tex]cm^{2}[/tex]

Step-by-step explanation:

When trying to find the area of a parallelogram, you multiply the base times the height.

7 x 9 = 63

Therefore,  63 [tex]cm^{2}[/tex] is the correct answer.

-kiniwih426

O Q Q
27 i 15
4. If a car is traveling 20' west of straight south, what is its true bearing? Draw a diagram to
show the path of the car. (10.9 Approaching)
5. If a plane is traveling 30" north of straight west, what is its true bearing? Draw a diagram to
show the path of the plane (10.9 Approaching)

Answers

Step-by-step explanation:

straight south is 180°.

so it is 180° 20'.

straight west is 270°.

so, it is 270° 0' 30".

smh other one didnt work what is this someone please tell me

Answers

Answer:

x > 125

Step-by-step explanation:

I'm not sure how much you know about solving equations, but solving inequalities is in many ways very similar.

In this inequality, to isolate x, we must multiply both sides of the inequality by 25. This will put x by itself with another number on the other side of the inequality symbol. 5 times 25 is 125, so our final inequality is x > 125.

Hopefully, that's helpful! Let me know if you have any more questions.

Can someone help me I'm lost

Answers

Answer:   [tex]\sqrt{6}[/tex]

This is the same as typing in sqrt(6)

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

Explanation:

The square has all four sides the same length, which in this case is [tex]\sqrt{3}[/tex] units.

The diagonal of the square splits it into two identical right triangles.

Use the Pythagorean Theorem to find the hypotenuse x, aka the diagonal.

[tex]a^2 + b^2 = c^2\\\\c = \sqrt{a^2 + b^2}\\\\x = \sqrt{\left(\sqrt{3}\right)^2+\left(\sqrt{3}\right)^2}\\\\x = \sqrt{3+3}\\\\x = \sqrt{6}\\\\[/tex]

Or you can take the shortcut

[tex]\text{hypotenuse} = (\text{leg})*\sqrt{2}\\\\x = \sqrt{3}*\sqrt{2}\\\\x = \sqrt{3*2}\\\\x = \sqrt{6}\\\\[/tex]

Which applies to 45-45-90 right triangles.

let's recall that a square has four equal sides, Check the picture below.

What is the volume of this rectangular prism?

Answers

Answer:

[tex]57,600cm {}^{2} [/tex]

Solving steps:

To find the volume of a rectangular prism, multiply its 3 dimensions: length x width x height. The volume is expressed in cubic units.

=> 40 cm[tex] {}^{2} [/tex] × 30cm[tex] {}^{2} [/tex] × 48 cm[tex] {}^{2} [/tex]

multiply all the numbers

=> 57,600cm[tex] {}^{2} [/tex]

Hi hi hi hi

Answer:

[tex]57,600cm {}^{2} [/tex]

Solving steps:

To find the volume of a rectangular prism, multiply its 3 dimensions: length x width x height. The volume is expressed in cubic units.

=> 40 cm × 30cm × 48 cm

multiply all the numbers

=> 57,600cm[tex] {}^{2} [/tex]

What is the area of the triangle 3 yd + 10 yd

Answers

Answer:

Answer:

The area is 30 sqr yds

Step-by-step explanation:

Let suppose the given area is a box or a room.

Let length = 3yds

Let width = 10 yds

Area of a rectangle or square is = length x width

Area = 3 x 10

Area = 30 yds

Step-by-step explanation:

Answer:

15 yards

Step-by-step explanation:

If there is a triangle of base and height B and H we can find the area by using the formula:

0.5×B×H

0.5×10×3 = 15

Adwoa made fresh orange juice. If she used 2 oranges per a glass.How many oranges did she use?​

Answers

Answer:

You have a picture of the problem?

Answer:

12 oranges.

[tex]2 * 6 = 12[/tex]

so that means that she used 12 oranges total for 6 glasses.

Hope this helps! Have a great day. ♣

AC = BC, CP = CQ and <BPQ = 20°
<ACP = ?°​

Answers

Answer: See attached image

Step-by-step explanation:

how would you find "b" in the y=mx+b equation? I have the "m" but I cannot find the "b" ​

Answers

B is just simply the y intercept

Which value of x solves the equation below?
10(x - 1) = 8x - 2

x = 6
X = 4
x = 5
x = 2

Answers

x=4

10x - 10 = 8x - 2
-8x -8x
2x - 10 = -2
+2 +2
2x - 8 = 0
2x = 8
/2 /2
x=4

How many solutions does the system have?
\begin{cases} y = -2x-4 \\\\ y = 3x+3 \end{cases}









y=−2x−4
y=3x+3

Answers

the answer of the question is infinite

Dennis has a credit card with an APR of 10. 14% and a billing cycle of 30 days. The following table shows his transactions with that credit card in the month of November. Date Amount ($) Transaction 11/1 517. 87 Beginning balance 11/9 31. 63 Purchase 11/23 64. 10 Purchase 11/26 65. 75 Payment If the finance charge for November is $3. 82, which method of calculating the finance charge does Dennis’s credit card company use? a. Adjusted balance method b. Previous balance method c. Daily balance method d. There is not enough information to determine which method was used Please select the best answer from the choices provided A B C D.

Answers

The method employed by the credit card company is the adjusted balance method, the correct option is A.

What is the adjusted balance method?

The adjusted balance method is a financial accounting method that bases finance charges on the amounts owed at the end of the current billing cycle after credits and payments post to the account.

Though the payment is not given but from the beginning balance and the purchases, Dennis owes a certain amount of money.

The finance charge is based on the amount owed by Dennis.

Thus, the method employed by the credit card company is the adjusted balance method.

Learn more about the adjusted balance method here: brainly.com/question/1808408

Supongamos que estás en el infierno y el diablo te reta a un juego. Él piensa en un número natural.Cada día, tú tendrás una oportunidad de adivinar ese número (él nunca cambia el número que pensó). Si lo adivinas, el diablo te permitirá salir del infierno.Recuerda que tienes una eternidad para adivinar, la pregunta es: ¿Cuál es el orden de los números naturales que adivinarías?

Answers

Answer:

En síntesis, se inicia con el número natural más pequeño en el primer y se prosigue con los números siguientes en caso de no dar con [tex]n[/tex], de modo que el participante pasará en el infierno únicamente [tex]n[/tex] días, algo pequeño en comparación con la eternidad.

Step-by-step explanation:

Los números naturales comprenden el subconjunto más pequeño de los números reales conformado por los siguientes elementos:

[tex]\mathbb{N} = \{1,2,3,4,...\}[/tex]

Sea [tex]n \in \mathbb{N}[/tex] el número que tiene el diablo en su mente, tal que [tex]n \geq 1[/tex]. Comenzamos el primer día con 1, si este no corresponde con [tex]n[/tex]. Entonces se utiliza 2 al día siguiente y este no corresponde, se emplea al día siguiente y así sucesivamente hasta conseguir [tex]n[/tex].

En síntesis, se inicia con el número natural más pequeño en el primer y se prosigue con los números siguientes en caso de no dar con [tex]n[/tex], de modo que el participante pasará en el infierno únicamente [tex]n[/tex] días, algo pequeño en comparación con la eternidad.

I NEED HELP ASAP CONGRUENCY IS NOT MY STRONG POINT

Answers

Answer:

4.) SAS

Step-by-step explanation:

to sides are congruent and both angles are 90 degrees

Answer:

4)It's RHS i.e. Right hand side

I don't know th full form of HL as there is difference in studies between countries. But right hand side applies when there is 90° angle , hypotenuse and a side equal in both the triangles. Would appreciate if you tell me what HL stands for.

5) ASA

6 SAS

Step-by-step explanation:

5) Angles are equal

the side is same for both the triangle.

6) Sides are given equal.

Angles are vertically opposite to each other.

Eric think you are cutting board is 10 inches long and 8 inches wide. What is its area ? ASAP PLS

Answers

Answer:

80 inches

Step-by-step explanation:

10 x 8 = 80

PLEASE HELP ME!!! An equation of the line tangent to the graph of y = 2x+3/3x-2 at the point (1,5) is

Answers

Answer: 13x + y = 18

Step-by-step explanation: 13x + y = 18 is equal to y = -13x + 18.

The derivative is y' = -13/3x-2^2.

With the derivative, you get -13 for slope and plug it in to get y - 5 = -13x + 13.

Move it around and you get 13x + y = 18.

Hope this helps!

We want to find the equation of the tangent line to a given point in a given function.

The correct option is B: 13*x + y = 18

So we want to find the equation of the tangent line to the function.

[tex]y = \frac{2x + 3}{3x - 2}[/tex]

at the point (1, 5).

To get the slope of that line, we need to evaluate the derivate of the function in the x-value of the point, the derivate of the function will be:

[tex]y' = \frac{2}{3x - 2} - 3*\frac{2x + 3}{(3x - 2)^2}[/tex]

Now we evaluate this in the x-value of the point, which is x = 1.

[tex]y' = \frac{2}{3*1 - 2} - 3*\frac{2*1 + 3}{(3*1 - 2)^2} = -13[/tex]

Then the line will be something like:

y = -13*x + b

To find the value of b, we use the fact that the line must pass through the point (1, 5). This means that when x = 1, we have y = 5.

Replacing that in the line equation we get:

5 = -13*1 + b

5 + 13 = b

18 = b

Then the equation of the line is:

y = -13*x + 18

Or, rewriting it.

13*x + y = 18

So the correct option is B.

If you want to learn more, you can read:

https://brainly.com/question/23265136

Please does anyone know the answer to 5^(2m-1)=1/625

Answers

Answer:

1/625 0r 0.0016 is the product of the given expression.

Step-by-step explanation:

Step-by-step explanation:

Here, The given expression, 5^{-1} / times 5^-3

We can write, 5^-1 / times 5^-3=/frac{5^{-1}}{5^3} (because we can write a^m=1/a^{-m})

⇒5^-1 / times 5^-3=/frac{1}{5^1/times 5^3}

⇒5^-1 / times 5^-3=/frac{1}{5^{1+3}} (because a^m/times a^n=a^{m+n})

⇒5^-1 / times 5^-3=/frac{1}{5^{4}}

⇒5^-1 / times 5^-3=/frac{1}{625}=0.0016

The volume of a sphere is 4,186. 7 cubic feet; find the radius of the sphere. Use 3. 14 as an approximation of pi

Answers

Answer:

R=9.9983

Step-by-step explanation:

A table of values of a linear function is shown below. Find the output when the input is n. Type your answer in the space provided. Input numbers: 1, 2, 3, 4, n. Output numbers: 3, 1, -1, -3, _. Can someone please quickly explain this to me?

Answers

Answer:

  5 -2n

Step-by-step explanation:

There are several ways you can find the linear function for this table of values.

find the slope and intercept and write the slope-intercept equationfind the slope and use a point to write the point-slope equation; solve for yrecognize the x-values are sequential starting with 1, so the y-values are an arithmetic sequence; write the formula for the n-th term of an arithmetic sequence

Using the last approach, we see that the first term is 3, and the common difference is 1-3 = -2. Then the n-th term is ...

  an = a1 +d(n-1) . . . . . . general term of arithmetic sequence with first term a1 and common difference d

  an = 3 -2(n-1) . . . . sequence with a1=3, d=-2

The output when the input is n is ...

  3 -2(n -1)

This can be simplified to ...

  5 -2n . . . . output for input of n

Divide \frac{\left(10x^4+20x^3-31x^2+x+19\right)}{\left(x+3\right)}
(x+3)
(10x
4
+20x
3
−31x
2
+x+19)

. What is the Remainder?

Answers

Answer:
R = 7


Explanation:

You can divide a polynomial by “x - b” using synthetic division. (See photo below; work is on the left, form is on the right).
Set up a chart with “-b” in the top left corner.
In the top row, list the coefficients in the order that appears with the polynomial.
Write “–“ and “X” to remind you to subtract and multiply.

1. Bring down the first dividend coefficient (or 10)
2. Multiply the first answer coefficient by -b (or 3)
3. Write the product (or 30) under the second coefficient
4. Subtract in the second column to find the second answer coefficient (-10)
5. Repeat until the last subtraction, which is the remainder (R = 7)

*** You could also solve using the remainder theorem by substituting x = -3 into the dividend and solving.

A squirrel runs across a road in 3 seconds. The road was more than 34 feet wide. Which inequality can be used to determine the squirrel’s speed? What is the solution to the inequality? Round to the nearest tenth, if necessary. How can you interpret the solution?.

Answers

Answer:

✔ 3r > 34

✔ r > 11.3

✔ The squirrel ran faster than 11.3 feet per second.

Step-by-step explanation:

The inequality used to define the squirrel's speed is 3r > 34

What is an inequality?

'In Mathematics, the relationship between two values that are not equal is defined by inequalities. Inequality means not equal.'

According to the given problem,

Let the speed of the squirrel be x feet per second

We know,

Speed × Time = Distance

Distance given is greater than 34 feet

Inequality of the given problem,

3x > 34

⇒ x > 34/3

⇒ x > 11.3 feet/second

Hence, we can conclude that the speed of the squirrel is more than 11.3 feet per second.

Learn more about inequalities here: https://brainly.com/question/15137133

#SPJ2

what is 20+60x50/80.2=??

Answers

Answer:

57.4064837905

Step-by-step explanation:

MATH

solve 2x + 12 = -4. show wrk

Answers

2x +12=-4

2x= -4-12

2x=-16

x=-16/2

x= -8

Step-by-step explanation:

2x+12=-4

2x=-4-12

x=-16/2

x=-8

hope this helps you

have a good day.

What is the value of s?
units
07
B
a
A
15
5
D

Answers

Answer: Ahh yes the value of s is A 15

Step-by-step explanation:


[tex] \sqrt[3]{5555} [/tex]
what is the cuberoot of 5555 ​

Answers

17.7 i believe i may be wrong!

What is x/4+7=-2 please answer

Answers

Answer:

your answer is -36 negative thirty six

Step-by-step explanation:

(-2)-7

(-9)*4

-36

Answer:

x = -36

Step-by-step explanation:

We need to isolate the x in this equation to solve.

1. Subtract 7 from both sides of the equation.

x/4 = -9

2. Multiply 4 from both sides of the equation.

x = -36

x = -36

Will someone please help me with this?​

Answers

I think the right answer is the sprinkler can spread water 5 feet away

The square of the quantity three less than a number n is seven(answer in an algebraic expression)

Answers

Answer:

[tex](n - 3)^2 = 7[/tex]

Step-by-step explanation:

From the question, we understand that the number is n.

Three less than n is:

[tex]n - 3[/tex]

The square is:

[tex](n - 3)^2[/tex]

The square equals 7;

So, we have:

[tex](n - 3)^2 = 7[/tex]

I need help I have been struggling with this question for 15 minutes

Answers

8155 original long with 5 purebtice
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