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agasfer [191]
3 years ago
11

The outside temperature is -13 degrees. The temperature drops by 9 degrees, but then increases by 16 degrees. What is the final

temperature outside? *
Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
8 0

Answer:

The final outside temperature = -6°

Step-by-step explanation:

GIven that :

the outside temperature = -13°

The temperature drops by 9°

But then increases by 16°.

The final temperature can be expressed as:

the outside temperature - temperature drop

= -( 13° - 9°)

= - 22°

it is said that the temperature later increase by 16°

∴  - 22° + 16°

= -6°

The final outside temperature = -6°

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EASY POINTS!!
MrRissso [65]
<h2>True </h2>

<h3>This curve passes the vertical line test, therefore it is a function.</h3>

<h3>The idea behind the vertical line test is that if you draw any vertical line, it has to intersect the curve only once. If there is more than 1 intersection, then it is not a function.</h3>

ps: This is a quadratic function of equation

f(x) =  - x {}^{2}  + 4

4 0
3 years ago
You are building a dining room table for family dinners. The table has a length of 3x + 1 feet and a width of 3x - 1 feet. If th
igor_vitrenko [27]

Answer:

Length 7 feet and Width 5 feet

Step-by-step explanation:

we know that

The area of the rectangle ( a dining room table) is equal to

A=LW

where

L=(3x+1)\ ft

W=(3x-1)\ ft

A=35\ ft^2

substitute

35=(3x+1)(3x-1)

Apply difference of squares right side

35=9x^2-1

9x^2=36\\x^2=4\\x=\pm2

Remember that the length cannot be a negative number

so

x=2

<em>Find the length</em>

L=(3(2)+1)=7\ ft

<em>Find the width </em>

W=(3(2)-1)=5\ ft

7 0
3 years ago
A, = 8 + 2(n - 1).<br><br>Dose anyone know this.​
Anna71 [15]
It is 54 because if you add a to 8 you get
5 0
3 years ago
Read 2 more answers
The circumference of a circle is 56 centimeters. calculate the diameter of the circle
Mrac [35]

Since you already have the circumference, you will divide 56 (Circumference) by pi. Which will get you the diameter*

Formula :: C/\pi

\frac{56}{\pi}  = 17.8 Approximately

5 0
3 years ago
A triangular colourful scenery is made in a wall with sides 50 cm, 50 cm and 80 cm. A golden thread is to hang from the vertex s
gayaneshka [121]

Answer:  The required length of the golden thread needed is 30 cm.

Step-by-step explanation:  Given that a triangular colorful scenery is made in a wall with sides 50 cm, 50 cm and 80 cm. A golden thread is to hang from the vertex so as to just reach the side 80 cm.

We are to find the length of the golden thread required.

As shown in the attached figure below, ABC is the triangular scenery with sides

AB = AC = 50 cm and BC = 80 cm.

AD is drawn perpendicular to BC, so that AD is the length of the golden thread required to reach side BC with length 80 cm from the vertex A.

Now, since AD ⊥ BC and ΔABC is isosceles (AB = AC), so we must have

D is the midpoint of BC.

That is,

BD=DC=\dfrac{1}{2}BC=\dfrac{1}{2}\times0=40.

Now, from the right-angled triangle ABD, we have

AB^2=BD^2+AD^2\\\\\Rightarrow AD^2=AB^2-BD^2\\\\\Rightarrow AD^2=50^2-40^2\\\\\Rightarrow AD^2=2500-1600\\\\\Rightarrow AD^2=900\\\\\Rightarrow AD=30.

Thus, the required length of the golden thread needed is 30 cm.

7 0
3 years ago
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