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Find the area of a rectangular blackboard whose length and breadth are 120 cm and 100 cm, respectively.​

Answer:

above is the solution to the question

Answer:50 feet

142+482=502

196+2304=2500

Step-by-step explanation:

Answer:

(3/4) : (5/6) = 910 = 0.9. Spelled result in words is nine tenths.

Step-by-step explanation:

Answer:

9/10

Step-by-step explanation:

to divide by a fraction, multiply by its reciprocal.

3/4 x 6/5

cancel the common factor of 2

3/2 x 3/5

multiply 3 x 3 and 2 x 5

9/10

the fraction is already reduced to the final answer is 9/10.

Answer:

18 cm³

Step-by-step explanation:

To find the volume of a triangular prism, find the area of the cross-section (in this case, the triangle) and multiply it by the length.

The area of the triangle is 1/2 × 4 × 3 = 6 cm²

Now, multiply 6 by 3 to get 18 cm³

Hope this helps!

Answer:

5  word problems(4points each)      &      10 open (3 points each)

Step-by-step explanation:

O= open response

W= word problems

  W+O =15

4W + 3O = 50

multiply the first by -3 to eliminate O

-3W -3O = -45

4W  + 3O = 50

  AD BOTH

W = 5    ( 5 questions word problems)

O= 10   ( 10 questions open response)

  5x4 = 20

10x3 = 30

      20 + 30 = 50 points

Step-by-step explanation:

c= 31.4

D= C/π

[tex]\longrightarrow[/tex] 10 yards

[tex]\red{\leadsto}\:[/tex][tex]\textsf{Circumference \:of \:the \:circle} [/tex][tex]\sf= 31.4 \:yards [/tex]

[tex]\green{ \underline { \boxed{ \sf{Circumference \: of \: the \: circle = 2πr}}}}[/tex]

[tex]\begin{gathered}\\\implies\quad \sf Circumference \:of \: the \: circle = 31.4 \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf 2πr= 31.4 \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf 2\times 3.14 \times r= 31.4 \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf 6.28 \times r= 31.4 \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf r= \frac{31.4}{6.28} \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf r= 5 \:yards \\\end{gathered} [/tex]

[tex]\green{ \underline { \boxed{ \sf{Diameter = 2 \times radius }}}}[/tex]

[tex]\begin{gathered}\\\implies\quad \sf Diameter = 2\times 5\\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf Diameter = 10 \: yards\\\end{gathered} [/tex]

Answer:

Since BAF is the opposite of DAE, they are equal to each other. 134 - 89 = 45. The correct answer is 45

Step-by-step explanation:

Answer:

no solutions

Step-by-step explanation:

The equation simplifies to 13 = -3, which is not true for any value of x.

Answer:

JS is about 69.4

Step-by-step explanation:

Notice that the given side length JW = 67 is opposite to the given angle S = 44º. JS is adjacent to angle S, so we use the tangent function to solve for JS:

[tex]\tan 44^{\circ} = \frac{JW}{JS}\\\\\tan 44^{\circ} = \frac{67}{JS}\\\\JS = \frac{67}{\tan 44^{\circ}}\\\\JS = 69.3805[/tex]

Round JS to the nearest tenth, 69.4.

Answer:

JS is approx. 69.4

Step-by-step explanation:

This triangle is close to a 45-45-90 triangle. So you then know the answer should be close to 67 because the other side is the same. This leaves us with JS=64.7 and JS=69.4. Another rule says that the side with the smaller angle is greater. 69.4 is greater.

Answer:

120

Step-by-step explanation:

took quiz it was correct!

Answer:

120

Step-by-step explanation:

Solution:

The side lengths can only be classified as a right triangle if it is a Pythagorean triple. To classify the side lengths as a Pythagorean triple, it must satisfy "c² = b² + a²".

Where:

Checking (5, 12, 13):

Checking (12, 35, 20√3):

Checking (5, 10, 5√5):

Checking (8, 12, 15):

Checking (20, 99, 101):

Answer:

12.8

Step-by-step explanation:

write it down on the calculator to get the result...

no. = 80 × 16% = 80 × (16/100) = 80 × 0.16 = 12.8

Answer:

3.5cm

Step-by-step explanation:

10mm = 1 cm

35mm = ?cm

35/10 = 3.5cm

Answer:

5/4÷7/16=20/7

-10/13 x 5/11=-50/143

9/11÷(-20/21)=-189/220

-8/3÷(-5/18)=-48/5

Step-by-step explanation:

hope this helped!!

Answer:

Linear negative association

Step-by-step explanation:

All points are in a line, so it is linear.

As x increases, y decreases. That is a negative association.

Answer: Linear negative association

Answer:

D

Step-by-step explanation:

There are 3 adults going because when there are 9 students, there is one adult, so that means that you divide 9 from 27. The answer is 3. The last equation matches that operation because 9n means 9 multiplied with n is the same as 27.

Answer:

option D

Step-by-step explanation:

9 students = 1 adult

therefore, 9n = 27

Answer:

4 cm

Step-by-step explanation:

Area of rectangle = Area of square

= 8 x 2

= 16 cm²

Side length = √Area

= √16

= √4 x √4

= 4 cm

I think 3 or maybe 2 because if ........

Answer:

360 of the people were teenagers

Step-by-step explanation:

To find percentages you need to divide the number by 100

∴ 20% of 1800

=20 ÷ 100 ×1800

=360

∴ there were 360 teenagers at the concert.

Answer:

≈ 7.85 cm

Step-by-step explanation:

The area (A) of a circle is calculated as

A = πr² ( r is the radius )

given A = 225π , then

πr² = 225π ( divide both sides by π )

r² = 225 ( take square root of both sides )

r = [tex]\sqrt{225}[/tex] = 15

the arc length is calculated as

arc = circumference × fraction of circle

      = 2πr × [tex]\frac{30}{360}[/tex]

      = 2π × 15 × [tex]\frac{1}{12}[/tex]

      = 30π × [tex]\frac{1}{12}[/tex]

      = [tex]\frac{30\pi }{12}[/tex]

      ≈ 7.85 cm ( to 2 dec. places )

Answer:

x = -12

Step-by-step explanation:

[tex]\frac{x}{6}=-2[/tex]

[tex]\mathrm{Multiply\:both\:sides\:by\:}6[/tex]

[tex]\frac{6x}{6}=6\left(-2\right)[/tex]

[tex]\mathrm{Simplify}[/tex]

[tex]x=-12[/tex]

~Learn with Lenvy~

Answer:

[tex]\rm\hookrightarrow[/tex] x = -12

Step-by-step explanation:

[tex]Solution,\\\\\rm\hookrightarrow \frac{x}{6} =-2\\\\\rm\hookrightarrow x=-2\times6\\\\\rm\hookrightarrow x=-12[/tex]

Answer:

pistachios

Step-by-step explanation:

you pay more for the pistachios because $2.75 is greater than $2

Answer:

The order of operations requires that all multiplication and division be performed first, going from left to right in the expression.

Step-by-step explanation:

Answer:

55.902m

Step-by-step explanation:

a^2 + b^2 = c^2
the diagonal line through the swimming pool is the hypotenuse that splits the pool into two equal right triangles

25^2 + 50^2 = c^2
625 + 2500 = c^2
3125 = c^2
root3125 = 55.902

Answer:

100 unit^2

Step-by-step explanation:

lateral surface area of right pyramid = .5*p*s

p = perimeter

s = slant ht

LS = 100 unit^2

3/(x + 4) = (x + 2)/5

Multiply both sides by 5 :

5 × 3/(x + 4) = 5 × (x + 2)/5

15/(x + 4) = x + 2

Multiply both sides by x + 4 :

(x + 4) × 15/(x + 4) = (x + 4) × (x + 2)

Provided that x + 4 ≠ 0, we can cancel the factors of x + 4 on the left side:

15 = (x + 4) (x + 2)

Expand the product on the right side:

15 = x² + 6x + 8

Move everything to one side:

0 = x² + 6x - 7

We can factorize easily in this case
0 = (x + 7) (x - 1)

Then

x + 7 = 0   or   x - 1 = 0

⇒   x = -7   or   x = 1

Answer:

slope  =  1

Slope-intercept form: y = 1x + 4

Step-by-step explanation:

Hope this helps!