The sides of a triangle are 8 cm, 11 cm and 13 cm. What is its area?​

Answers

Answer 1

Step-by-step explanation:

Area of triangle = 1/2 (L*h)


Related Questions

Find the equation of the line through (-1, 3) and (5,3)

Answers

Given:

A line passes through (-1, 3) and (5,3).

To find:

The equation of the line.

Solution:

The line passes through (-1, 3) and (5,3). So, the equation of the line is

[tex]y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]

[tex]y-3=\dfrac{3-3}{5-(-1)}(x-(-1))[/tex]

[tex]y-3=\dfrac{0}{5+1}(x+1)[/tex]

[tex]y-3=0[/tex]

Adding 3 on both sides, we get

[tex]y-3+3=0+3[/tex]

[tex]y=3[/tex]

Therefore, the equation of the line is [tex]y=3[/tex].

Use a graphing calculator to solve (1/4) ^ x+2 = 6:

Answers

Answer:

Take the logarithm of both sides of the equation to remove the variable from the exponent.

Exact Form:

x =  − 2  −  ln ( 6 )/ ln ( 4 )

Decimal Form:

x = −3.29248125 …

Hope this helps!

can someone explain this please ? I don’t know what not clicking for my brain

Answers

Answer:

1/4

Step-by-step explanation:

you can rearrange the problem to be

3/4 - 1/2

then you can convert to common denominators

3/4-2/4 = 1/4

Good morning can y’all help me

Answers

Answer:

rate of change

Step-by-step explanation:

Answer:

Good Morning the answer is rate of change

Step-by-step explanation:

QUESTION 8
Some seventh-, and eighth-grade students.spend time at
the elementary school tutoring students. Of the students
who tutor, 21 are seventh-graders and 18 are
eighth-graders. What percent of the tutors are
seventh-graders?
A) 54%
B) 46%
C) 52%
D) 21%

Answers

54 percent

You add the two together to get 39, then divide 21 by 39. This gives you 0.538, which turns into 54%

put them in order from the least to greatest. You can use the number line to help!!

Answers

-1, -0.5, 1/4 is the correct answer. Please give brainless :)

Daria earns a profit of $22.55 selling 11 tie dye shirts at market. How much will she make if she sells 23 shirts next weekend​

Answers

Answer:

$47.15

Step-by-step explanation:

22.55 divided by 11 is 2.05 so she made $2.05 on each shirt

2.05 x 23 is 47.15

47.15
You divide 22.55 by 11 and then multiply by 23

Find the equation of the line use exact numbers.
Y=|____|x+|____|

Answers

Answer:

[tex]y=\frac{3}{4} x-2[/tex]

Step-by-step explanation:

The line has a positive slope, that much is clear. If we just count from the y-intercept up to the next clear point, we can see that it is 3 up and 4 to the right. That gives us a rise over run of 3 over 4, or [tex]\frac{3}{4}[/tex].

The y-intercept is -2, so that is the latter half of the equation.

Annabelle's initial balance in her checking account was $95.62. She deposited $35.79 and then withdrew $45. What is the final balance for her checking account?

Answers

$86.41
because 95.62+35.79= 131.41-45=86.41

Help please????????????

Answers

Answer:

hiiii i total can help im doing this in school

Step-by-step explanation:

D

a person is standing on a cliff 120 ft high looking out to the ocean there is a boat out on the ocean 300 ft from the base of the cliff if the person looks down to see the boat what is her angle of depression to the nearest tenth

Answers

Answer:

21.8°

Step-by-step explanation:

Please see the attached picture for the full solution.

A fair spinner has eight equal sections.
The sections are either yellow (Y) or green (G).
The spinner is spun 3 times.
List all the possible outcomes of the 3 spins.
One has been done for you. YYY,
2 marks

Answers

Answer:

The first one is already giving to us YYY so

the answer is GGG,YGY,GYG,YYG,GGY,YGG,GYY

Step-by-step explanation:

Stephanie has a fish tank with 8 adult fish and 36 baby fish. What is the ratio of adult fish to baby fish in the tank?

Answers

Answer:

2:9

Step-by-step explanation:

8 adult fish:36 baby fish

To simply both, divide by 4

2 adult fish: 9 baby fish

please help, will give 10 points.

Answers

Answer:

length is 770 width is 410

Step-by-step explanation:

The perimeter of a rectangle a picture frame is 66 inches. the length is 3 inches greater than the width the system of linear equations used to represent the situation shown below.

2X + 2Y = 66 and X +3 =Y

solve the system name dimension represented by each variable

Answers

Given:

The perimeter of a rectangular picture frame is 66 inches [2X + 2Y = 66.]The length of the frame is 3 inches greater than the width [X + 3 = Y.]

To find: The dimensions.

Answer:

Formula to find the perimeter of a rectangle = 2 × (Length + Width)

We know that 2X + 2Y = 66. Simplifying it, we get:

2(X + Y) = 66

X + Y = 66/2

X + Y = 33

Now that we know the value of X + Y, and assuming X and Y to be the dimensions, let's substitute it into the formula to find the perimeter and verify it.

Perimeter = 2 × (X + Y)

66 = 2 × 33

It's verified.

Now, we also have the expression representing the length, which is X + 3 = Y.

X + Y = 33

X + 3 = Y

Let's add both expressions.

X + Y + X + 3 = 33 + Y

2X + Y + 3 = 33 + Y

2X = 33 - 3 + Y - Y

2X = 30

X = 30/2

X = 15

Hence, the width [X] is 15.

Substituting this value into the expression representing the length,

15 + 3 = Y

18 = Y

Hence, the length and breadth of the rectangular picture frame is 18 and 15 units respectively.

Hope it helps. :)

What is the value of the expression when x = 6?

a. 37
b. 59
c. 61
d. 35

Answers

Answer:

when x=6

26+x^2-1^3

26+6^2-1^3

26+36-1

61.

so the answer is.61

1) There were 11 bales of hay in the barn. Jason stacked more bales in the barn
today. There are now 79 bales of hay in the barn. How many bales did
he store in the barn?

Answers

Answer:

68

Step-by-step explanation:

79 - 11 is 68, so I think 68 is the answer.

Look at this diagram.

If QS and TV are parallel lines and m<TUR = 113°, what is m<QRP?

___°​

Answers

Answer:

90

hope this helps!:)

Step-by-step explanation:

Factor this problem and then use the Zero Product property to get the two solutions
6x²-23x+20

Answers

Answer:

(3x-4) x (2x-5)

Step-by-step explanation:

(3x-4)= x=12. ( 2x-5)= 10. x=10

Which is the graph of the linear equation y = -x?

Answers

Answer:

Graph the line using the slope and y-intercept, or two points.

Slope: −1

y-intercept: (0,0)

x    y

0    1

0  −1

Step-by-step explanation:

Find −64÷(−8) need help

Answers

The correct answer is 8.

Answer: The answer to -64 divided by 8 would be 8.

It takes 91 pounds of seed to completely plant a 10-acre field. How many acres can be planted per pound of seed?

Answers

Answer:

[tex]0.109\ \text{acres per pound}[/tex]

Step-by-step explanation:

Given that,

It takes 91 pounds of seed to completely plant a 10-acre field.

We need to find how many acres can be planted per pound of seed. Let it is x. It can be calculated by dividing acres to pounds per seeds.

[tex]x=\dfrac{10}{91}\\\\=0.109\ \text{acres per pound}[/tex]

So, the required answer is [tex]0.109\ \text{acres per pound}[/tex].

Find the constant of proportionality from the equation below.*

y = 2/3x

Answers

Answer:

is the 9 seven for five 1233

Please help me with number 13 and 14

Answers

Answer:

13: Irrational

14: 1.091 x 10 with a exponent of 9

Answer:

[tex]the \: first \: one \: is \: irrational \: numbe \: and[/tex]

[tex]the \: second \: one \: is \: 1.091 \times {10}^{9} [/tex]

Step-by-step explanation:

Rational number do not include radical numbers

Find the product (x - 5)(2x2 – X + 4).
A
2x3 - 11x2 + 9x - 20
B
2x3 + 9x2 - 11x + 20
С
2x3 + 11x2 - 9x + 20
D
2x3 - 11x2 - 9x - 20

Answers

Answer:

The answer is A

Step-by-step explanation:

1st step: x(2x^2-x+4)  -5(2x^2-x+4)

2nd step: (2x^3-x^2+4x)  (-10x^2+5x-20)

3rd step: combine like terms 2x^3-11x^2+9x-20

The function f is defined by the following rule f(x) = 5x -5 Complete the function table. -5 -1 I 2 3 4​

Answers

Answer:

x     f(x)

-5   -30

-1    -10

2    5

3    10

4    15

Step-by-step explanation:

Let us solve the question

∵ The function f is defined by the rule f(x) = 5x - 5

x = -5

→ Substitute x in f by -5 to find the value of f(-5)

∴ f(-5) = 5(-5) - 5 = -25 - 5 = -30

f(-5) = -30

x = -1

→ Substitute x in f by -1 to find the value of f(-1)

∴ f(-1) = 5(-1) - 5 = -5 - 5 = -10

f(-1) = -10

∵ x = 2

→ Substitute x in f by 2 to find the value of f(2)

∴ f(2) = 5(2) - 5 = 10 - 5 = 5

f(2) = 5

x = 3

→ Substitute x in f by 3 to find the value of f(3)

∴ f(3) = 5(3) - 5 = 15 - 5 = 10

f(3) = 10

x = 4

→ Substitute x in f by 4 to find the value of f(4)

∴ f(4) = 5(4) - 5 = 20 - 5 = 15

f(4) = 15

the duration of a flash from a camera is timed at 0.004 seconds accurate to 1 / 1000 of a second calculate the upper and lower bounds for the duration of the flash using in quality

Answers

Answer:

0.0035 ≤ x ≤ 0.0045

Step-by-step explanation:

Given that:

The error = 1/1000 = 0.001 / 2 = 0.0005 s

Hence, 0.004 ± Error

0.004 ± 0.0005

Lower boundary = (0.004 - 0.001) = 0.0035

Upper boundary = (0.004 + 0.001) = 0.0045

0.0035 ≤ x ≤ 0.0045

five times the sum of a number and two is ten

Answers

Answer:

5(x+2)=10

Step-by-step explanation:

use the PEMDAS, solve first the one inside the parenthesis and then multiply the sum to 5

A customer ordered 3 Americanos and 4 lattes for a
total of $18.00. At the same coffee shop a second
customer spends $2 less than the first customer for 5
Americanos and 2 lattes.
How much does each latte cost?

Answers

Answer:

3636

Step-by-step explanation:

URGENT PLEASE: You purchase a new guitar and take out a loan for $450. You have 18 equal monthly payments of $28 each. What is the simple interest rate for the loan? Round to the nearest tenth of a percent, if necessary.

Answers

Answer:
8%

Step-by-step explanation:
The amount repaid is ...
A = P(1 +rt)
Filling in the given values, we can find r.
(18·28) = 450(1 +r(18/12)) . . . . . t is in years
504 = 450 + 675t

54/675 = 0.08 = 8%

The simple interest rate on the loan is 8%.
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