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3 years ago

Can someone help please and thank you!

Mathematics

2 answers:

kondor19780726 [428]3 years ago

5 0

Answer:

10 and 40 I think maybe?

Step-by-step explanation:

I hope this is correct if not I am so so so so so so sorry

NeX [460]3 years ago

5 0

Answer:

a. 7.53 ft high

b. 33.46 ft distance

Step-by-step explanation:

The vertex of the quadratic is located at ...

x = -b/(2a) = -(0.9)/(2(-0.0269)) ≈ 16.7286 . . . . feet from the start

The height at that point is ...

y = (16.7286)(-0.0269·16.7286 +0.9) ≈ 7.52788 ft

The gray kangaroo can jump about 7.53 ft high.

The height is zero when ...

0 = x(-0.0269x +0.9)

x = 0

x = 0.9/0.0269 ≈ 33.4572 . . . ft

The kangaroo can jump about 33.46 feet.

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The Louvre is an art museum in Paris. A glass square base pyramid sits in front of the entrance to the museum. If the pyramid is

Sveta_85 [38]

Answer:

lateral area = 2320 m²

Step-by-step explanation:

The question wants us to calculate the lateral area of a square base pyramid. The square base pyramid has a side of 40 meters.The height is 21 meters.

Half of the square base is 40/2 = 20 meters . With the height it forms a right angle triangle. The hypotenuse side is the slant height of the pyramid.

Using Pythagoras's theorem

c² = a² + b²

c² = 20² + 21²

c² = 400 + 441

c² = 841

square root both sides

c = √841

c = 29 meters

The slant height of the pyramid is 29 meters.

The pyramid has four sided triangle. The lateral area is 4 multiply by the area of one triangle.

area of triangle = 1/2 × base × height

base = 40 meters

height = 29 meters

area = 1/2 × 40 × 29

area = 580

area of one triangle = 580 m²

Lateral area = 4(580)

lateral area = 2320 m²

5 0

3 years ago

solve the system of equations below by graphing both equations with a pencil and paper what is the solution y=2x-4 y=-x+5

miss Akunina [59]

Answer:

The coordinate of the points on the graph as shown , where ( x ,y ) = ( 3 , 2 )

Step-by-step explanation:

Given as :

The two algebraic equation is

y = 2 x - 4 .......A and y = - x + 5 ........B

The given two algebraic equation can be solved by putting the one variable to the other equation

Now , put the value of y from Eq A into the Eq B

I.e 2 x - 4 = - x + 5

or, 2 x + x = 5 + 4

or, 3 x = 9

∴ x = $\frac{9}{3}$

I.e x = 3

So The value of x = 3

Again, put the value of x in the equation A

I.e y = 2 x - 4

or, y = 2 × 3 - 4

∴ y = 6 - 4

I.e y = 2

So The value of y = 2

So , The coordinate of points on the graph as ( x , y ) = ( 3 , 2 )

Hence The coordinate of the points on the graph as shown , where ( x ,y ) = ( 3 , 2 ) Answer

6 0

3 years ago

Read 2 more answers

Point B has coordinates (2,1). The x-coordinate of point A is −3. The distance between point A and point B is 13 units. What

leva [86]

Answer:

A = (-5,y) B = (4,1)

6 0

3 years ago

Which expression is equivalent to 15x – 2(3x + 6)?

Mkey [24]

Answer: 3(3x−4) is the answer

7 0

3 years ago

Find the Midpoint of the coordinates (-1,4) and (5,7)

Rainbow [258]

Answer:

$(2,\frac{11}{2})$

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

<u>Algebra I</u>

Midpoint Formula: $(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})$

Step-by-step explanation:

<u>Step 1: Define</u>

Endpoint (-1, 4)

Endpoint (5, 7)

<u>Step 2: Find midpoint</u>

Substitute: $(\frac{-1+5}{2},\frac{4+7}{2})$
Add: $(\frac{4}{2},\frac{11}{2})$
Divide: $(2,\frac{11}{2})$

5 0

3 years ago

Read 2 more answers