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3 years ago

Someone pls explain/help ?? This is confusing

Mathematics

2 answers:

sladkih [1.3K]3 years ago

8 0

Answer:

I can't see the picture

Step-by-step explanation:

Dmitrij [34]3 years ago

7 0

You will need to use a graphing calculator or the app Desmos works Nicely to graph things and do math related stuff.

Opposite/adjacent = Tangent
Opposite/hypotenuse = Sine
Adjacent/hypotenuse = Cosine

Look at the photo below!

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Twenty-one people brought a chocolate cake to a community potluck dinner each cake was split into 8 slices how many slices of ch

dexar [7]

Answer:

168

Step-by-step explanation:

Multiply 21 by 8 so

21 × 8 = 168

6 0

3 years ago

A van and a bicycle move towards each other. The speed of the van is 80 km per hour, and the speed of the bike is 20 km per hour

otez555 [7]

-- :

Bike > ________300km_________< Van

20km/h 80km/h

In one hour, the bike will have moved 20km and the van would have moved 80km.

The distance between them was 300km. But the bike moved 20km and the van moved 80km, since its been one hour. Which means the distance between them is less.

300km-(20km+80km) = 200km

So now the distance between them is 200km.

Now another hour passes. The distance between them was 200km. But the bike moved 20km and the van moved 80km, since its been one hour. Which means the distance between them is less.

200km-(20km+80km) = 100km

So now the distance between them is 100km

Now another hour passes. The distance between them was 100km. But the bike moved 20km and the van moved 80km, since its been one hour. Which means the distance between them is less.

100km-(20km+80km) = 0km

So now the distance between them is 0km, which means they have met. If we count, it took them 3 hours.

Step 1)

Add both speeds. 20km+80km=100km

Step 2)

Total distance between them = 300km

So do 300km/100km = 3hours.

______

The solution is: .

————

Hope this helped!

4 0

2 years ago

A solid right pyramid has a square base with an edge length of x cm and a height of y cm. Which expression represents the volume

solniwko [45]

Answer:

Thus, volume of pyramid = $\frac{1}{3}x^2y$ cm³

Step-by-step explanation:

Given: A solid right pyramid has a square base with an edge length of x cm and a height of y cm.

We have to choose from the given options an expression for the volume of the pyramid.

Volume of pyramid = $\frac{1}{3}\times Area\ of\ base \times height$

Since base is a square with edge length x cm.

Area of square = (side)² = x²

Thus, volume of pyramid = $\frac{1}{3}x^2y$ cm³

3 0

3 years ago

Read 2 more answers

Fill in the blanks:

ser-zykov [4K]

Answer:

$8943=8\times 1000+9\times 100+4\times 10+3\times 1=8\times 10^3+9\times 10^2+4\times 10^1+3\times 1$

So in blanks there will be 8, 9, 4, 3

Step-by-step explanation:

We have given that $8943=.....\times 1000+....\times 100+....10+....1=....10^3+....10^2+....10^1+....1$

We have to fill the blanks

We know that $8\times 1000=8000$

$9\times 100$

$4\times 10$

$3\times 1$

When we add all then

$8000+900+40+3=8943$

So in the blanks there will be 8 , 9, 4 , 3

We also know that $8000=8\times 10^3$

$900=9\times 10^2$

$40=4\times 10^1$

$3\times 1=3$

So $8943=8\times 1000+9\times 100+4\times 10+3\times 1=8\times 10^3+9\times 10^2+4\times 10^1+3\times 1$

7 0

3 years ago

Given the system of inequalities:

Crazy boy [7]

Answer:

$4x-5y$ slope intercept form is option 3 - $y>\frac{4x}{5}-\frac{1}{5}$

$\frac{1}{2}y-x$ slope intercept form is option 4 - $y$

Step-by-step explanation:

Given : The system of inequalities $4x-5y$ and $\frac{1}{2}y-x$

To find : Which shows the given inequalities in slope-intercept form?

Solution :

The slope intercept form is $y=mx+b$ where m is the slope and b is y-intercept.

First inequality is $4x-5y$

Now we take y to one side by subtracting 4x both side,

$-5y$

Divide both side by 5,

$-y$

Multiply both side by -1,

$y>-\frac{1-4x}{5}$

$y>\frac{4x-1}{5}$

$y>\frac{4x}{5}-\frac{1}{5}$

So, Option 3 is correct.

Second inequality is $\frac{1}{2}y-x$

Now we take y to one side by adding x both side,

$\frac{1}{2}y$

Multiply both side by 2,

$y$

So, Option 4 is correct.

3 0

3 years ago

Read 2 more answers