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3 years ago

Please Help!!!

Mathematics

1 answer:

geniusboy [140]3 years ago

8 0

Answer:

<h2>Fifths</h2><h2 />

Step-by-step explanation:

There are 5 people. Dividing the 3 bars into fifths makes 15 pieces. When you divide 15 pieces by 5 people, you get 3 pieces for each person.

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Solve for x to make the proportion true.<br> *<br> 22<br> 44<br> 6<br> X =

Sonja [21]

Where’s the equation?

3 0

3 years ago

Someone help me with this!!

Wewaii [24]

Answer:

shown below

Step-by-step explanation:

1. o corresponds with r

2.q is also 70 degrees

3. and QR is 8.5 inches

5 0

3 years ago

The triangle has an area of 7\frac{7}{8}7 8 7 cm2 and a base of 5\frac{1}{4}5 4 1 cm. What is the length of h? Explain your

motikmotik

Answer:

Step-by-step explanation:

Area of a triangle = 1/2 * base * height

Given

Area = 7 7/8cm²

Base = 5 1/4 cm

Required

Height of the triangle

Substitute;

7 7/8 = 1/2 * 5 1/4 * Height

63/8 = 1/2 * 21/4 * h

63/8 = 21H/8

63 = 21H

H = 63/21

H = 3cm

Hence the length of h is 3cm

7 0

3 years ago

Hyperbola Question:

AveGali [126]

Answer:

$\dfrac{x^{2}}{1210000 } - \dfrac{y^{2}}{5759600} = 1$

Step-by-step explanation:

A hyperbola is a curve for which the difference of the distances |d₂ - d₁| of any point P from the foci is constant.

The definition leads to the equation

$\dfrac{x^{2}}{a^{2}} - \dfrac{y^{2}}{b^{2}} = 1$

1. Calculate the value of a²

Assume the neighbours are at the foci A and B.

The explosion is farther from B than from A, so it occurred on the right branch of the hyperbola.

Then AB = 1 mi = 5280 ft

and the distance from the focus to the y-axis is

c = 2640

The vertices are (±a,0).

The speed of sound is 1100 ft/s, so B is 2200 ft further from the explosion.

The distance from A to the vertex V₁ is c - a. Then

AB = 2200 + 2(c - a) = 2200 -2(2640 - 2a) = 2200 +5280- 2a = 5280

2a = 2200

a = 1100

a² = 1 210 000

2. Calculate the value of b²

$\begin{array}{rcl}a^{2} + b^{2} & = & c^{2}\\1100^{2} + b^{2} & = & 2640^{2}\\b^{2} & = & 2640^{2} - 1100^{2}\\& = & 6969600 - 1210000\\& = & \mathbf{5759600}\\\end{array}$

3. Write the equation for the hyperbola

$\mathbf{\dfrac{x^{2}}{1210000 } - \dfrac{y^{2}}{5759600}} = \mathbf{1}$

5 0

4 years ago

What is the surface area of this design?

klasskru [66]

I think it is 7200in.

3 0

3 years ago

Read 2 more answers