Mathematics High School

Area of rectangle and triangles!! HELP ASAPPP

Answers

Answer 1

Answer:

13. 15

14. 7.25

15. 18.7

16. 40.515

17. 9.6

18. 12.95

19. 20.4

20. 16.2

21. 24

22. 25.65

Related Questions

i have questions up will mark brainliest

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Answer:

what questions?

Step-by-step explanation:

£3 is €4.
Convert £30 to euros.

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40 euros if u convert it

Does anyone know how to answer this?

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Given that
The length of the rectangle 4cm and the breadth is 3cm
Area of rectangle= length * breadth
Area= 4*3
= 12cm^2
Hope it helped

Step-by-step explanation:

We first calculate the lenght of the diameter, that is also the lenght of the hypotenuse of the right triangle shown in the figure:

d = [tex]\sqrt{3^2 + 4^2} = \sqrt{25} = 5[/tex] cm

The radius of the circle will be half of the diameter: r = d/2 = 2.5 cm

The area of the circle will be: Acircle = pi * r^2 = pi * 6.25 cm^2 = 19.6 cm^2 (circa).

Now from the area of the circle we subtract the area of the square:

Asquare = 4cm * 3cm = 12cm^2

A shaded = Acircle - Asquare = 19.6 cm^2 - 12cm^2 = 7.6 cm^2

Columbus would have taken some live animals aboard for food sources. If there were one hundred forty one animals, of which seventy two were rabbits and the rest were chickens,what percentage of animals were chickens? Round your answer to the nearest percent.

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Answer:

Step-by-step explanation:

hope it will help I think 49 is the answer

HELP IM REALLY BEHIND ON MY MATH THE RIGHT ANSWER WILL GET BRAINLIEST

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Answer:

N=3

Step-by-step explanation:

use cross multiplication to find 28N=84 and then divide both sides by 28 to get N=3

Answer:

N = 3

Step-by-step explanation:

Given Δ ABC is similar to Δ DEF , then the ratios of corresponding sides are in proportion, that is

[tex]\frac{AB}{DE}[/tex] = [tex]\frac{BC}{EF}[/tex] , substitute values

[tex]\frac{21}{N}[/tex] = [tex]\frac{28}{4}[/tex] = 7 ( multiply both sides by N to clear the fraction )

21 = 7N ( divide both sides by 7 )

3 = N

What is the area, in square centimeters, of the shape below?
Express your answer as a fraction in simplest form.

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Answer:4/9 cm²Step-by-step explanation:Area of triangle: 1/2 x base x altitude.=> 1/2 x 4/3 x 2/3=> 2/3 x 2/3=> 4/9 cm²Conclusion:

Therefore, the area of the triangle is 4/9 cm².

Hoped this helped.

[tex]BrainiacUser1357[/tex]

if f(x) = 2x^2 +1 and g(x) = 3x-2 what is the value of f(g(x))

Answers

Answer:

18x² - 24x + 9

Step-by-step explanation:

To find f(g(x)), substitute x = g(x) into f(x) , that is

f3x - 2)

= 2(3x - 2)²+ 1 ← expand factor using FOIL

= 2(9x² - 12x + 4) + 1 ← distribute parenthesis by 2

= 18x² - 24x + 8 + 1

= 18x² - 24x + 9

Can someone please answer this no bots answer this please… I’ll give you brainliest

Answers

Answer:

Part one:

Y=13.5x+1

Part two:

Y=12x+40

Part three:

After 15 seconds Sam: 203.5ft Alice:220ft

Alice won

Step-by-step explanation:

Can someone please take the time out of They’re day and help me with this

Answers

Answer:

a. 3x = 2x + 10, b. x = 10, c. 30 degrees

Step-by-step explanation:

Angle 4 and angle 6 = 180 degrees, so

3x = 2x + 10

x = 10

Angle 7 is congruent to angle 6, so it is also 2x + 10, x = 10, so it is 30 degrees.

Answer:

see explanation

Step-by-step explanation:

∠ 4 and ∠ 6 are same- side interior angles and sum to 180° , that is

(a)

3x + 2x + 20 = 180 , simplifying

(b)

5x + 20 = 180 ( subtract 20 from both sides )

5x = 160 ( divide both sides by 5 )

x = 32

(c)

∠ 6 and ∠ 7 are vertically opposite angles and are congruent , then

∠ 7 = 2x + 20 = 2(32) + 20 = 64 + 20 = 84°

Answer plz:
Show work also

Answers

Answer:

height 10area 240

Step-by-step explanation:

The diagonal is the hypotenuse of the right triangle whose sides are the sides of the rectangle. The Pythagorean theorem applies.

height² + base² = diagonal²

height² +24² = 26²

height² = 676 -576 = 100

height = √100 = 10

The area is the product of the base and height.

A = bh

A = (24)(10) = 240

The height is 10 units; the area is 240 square units.

Find the measure of the angle x to the nearest tenth. Question 7 options: 33. 5Â° 56. 5Â° 28. 9Â° 44. 3Â°.

Answers

The question is an illustration of right-angled triangles

The approximated value of x is 33.5 degrees

The given parameters are:

[tex]\theta = x[/tex]

[tex]Hypotenuse = 58[/tex]

[tex]Opposite = 32[/tex]

To determine the measure of angle x, we simply make use of the following sine ratio.

[tex]\sin(\theta) = \frac{Opposite}{Hypotenuse}[/tex]

So, we have:

[tex]\sin(x) = \frac{32}{58}[/tex]

[tex]\sin(x) = 0.5517[/tex]

Take arc sine of both sides

[tex]x = \sin^{-1}(0.5517)[/tex]

This gives

[tex]x = 33.5[/tex]

Hence, the approximated value of x is 33.5 degrees

Read more about right-angled triangles at:

https://brainly.com/question/16195823

1. Classify the following polynomials as monomial, binomial trinomial and polynomial:
i) a2 + a – 6

Answers

Answer:

trinomial

Step-by-step explanation:

a monomial has 1 term

a binomial has 2 terms

A trinomial has 3 terms

a² + a - 6 ← has 3 terms so is a trinomial and also a polynomial

Which set of numbers are ordered from least to greatest?
O A. 7,1-41, -7,0,-131, 3
B. -31, -7,0,3,7, 1-4]
C. -7,-131,0,3, 4,7
D. 7.1-41,3,0.-131, -7

Answers

The answer is B. -31, -7, 0 , 3, 7, 1, 4

The graph shows a proportional relationship. Which equation matches the
graph?

A. y = 1/7 x
B. y = 14x
c. y = 7x
D.y = x

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Answer:

The answer is C.

Just trust me.

1308 evaluated khan academy

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Answer: what? What’s the question?

how to solve an equation using quadratic formula

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Answer:

[tex]{ \rm{x = \frac{ - b \pm \sqrt{ {b}^{2} - 4ac } }{2a} }} \\ [/tex]

A guidance counselor wants to determine if there is a relationship between a student’s number of absences, x, and their grade point average (GPA), y. He collects data for 15 randomly selected students and determines the value for s was 0.67.

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The interpretation of the value of s being 0.67 is that: the typical distance between the observed grade points and predicted grade points was about 0.67 points.

The given parameters are:

n = 15s = 0.67

Variable s

In regression, the variable s represents the average distance that the observed values fall from the regression line

The grade points

In this case, we have:

The observed grade points and The predicted grade points

Hence, 0.67 represents the typical distance between the observed grade points and predicted grade points.

Answers

Answer:

y-axis

x-axis.

Step-by-step explanation:

(-2 1/2, -72) - 2 negative values so: Quadrant IV.

(0, 6): When x = 0 we are on the y-axis,

(-5, 0): if y = 0 its the x-axis.

pls help me i rlly need to get this done today.

A coordinate grid is shown below:

A coordinate grid from negative 2 to 0 to positive 2 is drawn. There are three grid lines between a whole unit on the grid.

Part A: Which point represents the origin? (2 points)

Part B: Starting from the origin, explain how to plot the following three points accurately:

(−1, 1)
(1, −1.5)
(2, fraction 1 over 4)
(8 points

Answers

Answer:

Part A: The origin would be (0, 0)

Part B:

(-1, 1) starting from the origin (0,0), would move left 1 on the x-axis then you would move up 1 on the y-axis

(1, -1.5) starting from the origin (0,0), you would move to the right 1 on the x-axis, then you would move down 1.5 on the y-axis

(2, 1/4) starting from the origin (0,0), you would move to the right 2 on the x-axis, then you would move up 1/4 (.25).

a) The origin would be (0, 0).

What are Coordinates?

Coordinates are a pair of integers (Cartesian coordinates), or sporadically a letter and a number, that identify a certain place on a grid, also referred to as a coordinate plane. The x axis (horizontal) and y axis (Verticle) are the two axes that make up a coordinate plane.

Given:

a) The origin would be (0, 0).

b) First, (-1, 1) move left 1 on the x-axis then you would move up 1 on the y-axis

Second, (1, -1.5) move to the right 1 on the x-axis, then move down 1.5 on the y-axis

Third, (2, 1/4) move to the right 2 on the x-axis, then move up 1/4 (.25).

Learn more about Coordinates here:

https://brainly.com/question/28806463

#SPJ2

At Simba Travel Agency, the price of a climbing trip to Mount Kilimanjaro includes an initial fee plus a constant fee per meter.
The variable f models the fee (in dollars) for climbing d meters.
f=110+0.12d
What is the initial fee?

Answers

110 is the initial fee.

intial fee is the y-intercept.

merry christmas! my teachers gave me work. ill be happy if u help

Answers

heyy merry christmas !
area of a triangle = base * height : 2
4 * 5 = 20 : 2 = 10
10 * 12triangles = 120cm^3

How do I solve this problem?

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Here is the work! The zeros of the graph are at -1 and 3

Zoe charges £9 per student to attend a dance class. There are y students in the class.

a . Write an expression for the total amount she charges for a class.

b. How much does she charge for 5 students?

c. How many students must she have in the class to make £72?

Answers

a. 9y ( 9 x y)

b. 9(5) - She charges 45$ for 5 students

c. 9y= 72
y = 72/9
y = 8

She must have 8 students in her class.

change 4700g into kg

Answers

Answer:

4.7 kilograms

Step-by-step explanation:

[ 1000 g = 1 kg ]

Change 4700g into kg,

→ 4700 ÷ 1000

→ 4.7 kg

Answer: 4.7 kg (divide by 1000)

sooooooooooooooooooooooooooooo easy

Answers

Answer:

11/12..................

Answer:

J) 11/12

Step-by-step explanation:

Solve the equation below and explain how you solved it

x- 5 (x-1) = x- (2x-3)

(No bots or u will be reported)

Answers

Answer:

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

Step-by-step explanation:

x - 5(x - 1) = x - (2x - 3) ← distribute parenthesis and simplify both sides

x - 5x + 5 = x - 2x + 3

- 4x + 5 = - x + 3 ( add x to both sides )

- 3x + 5 = 3 ( subtract 5 from both sides )

- 3x = - 2 ( divide both sides by - 3 )

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

Mr. Russo had 6.25 cubic feet of potting soil in his raised garden bed. Then he took a bag of soil and poured in enough to completely fill the 9-cubic-foot bed. Let x represent how much soil was in the bag. Which inequality describes the problem?

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Answer:

Step-by-step explanation:

Find the value of x in the solution of the system y = -4x + 48

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Answer:

x = 12

Step-by-step explanation:

y= -4x+48

0=-4x+48

4x=48

x=12

what is the value of x?
please I need step by step solution

Answers

Answer:

Value of [tex]x=5[/tex]

Step-by-step explanation:

Given that

[tex]3=\log _{10}(8)+3 \log _{10}(x)\\\\3=\log _{10}(8)+\log _{10}(x^3)\\\\3=\log _{10}(8x^3)\\\\8x^3=10^3\\\\x^3=125\\\\x=5[/tex]

Solve 5/4=y−1/4. i need help

Answers

Answer:

I don't know

Step-by-step explanation:

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