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3 years ago

Please help ASAP (picture)

Mathematics

1 answer:

Anastasy [175]3 years ago

5 0

We're interested in the range, the y values.

The square root will always be positive or zero (at least in the valid domain) so we can subtract 10 from it and still be in the specified range.

Answer: Second choice

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Can somebody help me

steposvetlana [31]

Answer:

your answer will be 25.75 I think.Have a great day <3

7 0

3 years ago

A sound wave travels through iron at a rate of 5120\,\dfrac{\text{m}}{\text{s}}5120 s m 5120, start fraction, start text, m, e

klio [65]

Answer:

18432 km/h

Step-by-step explanation:

It is given that a sound wave travels through iron at a rate of 5120 m/s.

We know that

1 km = 1000 m

1 hour = 60 minutes

1 minutes = 60 second

Using these conversions we get

1 m = 0.001 km

1 hour = 3600 second

$5120\text{ m/s }=5120\times 0.001\times 3600\text{ km/h}$

$5120\text{ m/s }=18432\text{ km/h}$

Therefore, the sound wave travels through iron at a rate of 18432 km/h.

6 0

3 years ago

AOV is a right angle and the ratio AOB: BOC= 2:3 what is the size of angle BOC ?

seraphim [82]

A right angle = 90 degree
BOC = 3/5 of the right angle
= 3/5 x 90
= 54 degree

7 0

3 years ago

The length of a rectangular storage room is 3 feet longer than its width. if the area of the room is 40 square feet, find the wi

Sonja [21]

Answer:

Width of rectangular storage room= 5 feet.

Step-by-step explanation:

Let x be the width of storage room.

We have been given that the length of a rectangular storage room is 3 feet longer than its width. So the length of storage room will be x+3.

We are also given that the area of the room is 40 square feet.

Since the area of a rectangle is length times width.

$\text{Area of rectangle}=\text{Length* Width}$

Let us substitute our given values in area formula.

$40=x*(x+3)$

Upon distributing x we will get,

$40=x^2+3x$

$x^2+3x-40=0$

Now let us factor out our quadratic equation using splitting the middle term.

$x^2+8x-5x-40=0$

$x(x+8)-5(x+8)=0$

$(x+8)(x-5)=0$

$x+8=0$ or $x-5=0$

$x=-8$ or $x=5$

Since width can not be negative, therefore, the width of rectangle will be 5 feet.

Let us verify our answer.

Length of rectangular storage room is 3 feet longer than its width. So length will be 5+3=8.

Given: Area=40 square feet.

5*8=40.

Hence, width of rectangular storage room is 5 feet.

5 0

3 years ago

Help Please! This is not a school assignment. This is a home-homework assignment that my parents gave me. My father has no idea

Karo-lina-s [1.5K]

Hello!
Id like to help best i can, but the file isn't loading. Could you perhaps screenshot it and attach it as an image? :)

8 0

3 years ago

Read 2 more answers