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3 years ago

Put the number by which one you answer and don't put nothing if you don't know it please

Mathematics

1 answer:

zhenek [66]3 years ago

5 0

Answer:

#2 - yes, no, yes, no

#4 - exponential

#5 - (y = 2x + 3) is linear, (y = 2x^3) is not linear, (y = 3x^2) is not linear, and (y = -x - 1) is linear

#6 - the last option

#7 - true, false, true, false

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The table shows the cost of renting a sound system for a concert. Isabel rents a sound system at 1 p.m. and plans to return it b

leonid [27]

Answer:

Step-by-step explanation:

its 56 b

3 0

3 years ago

I need help with number 4!! Please! I didn’t learn this and it is due soon! Thank you

earnstyle [38]

Answer:

$20.63 if you tip on the pre-tax amount

Step-by-step explanation:

You pay $12.99 for the pizza, plus the 8% tax on the pizza, plus the 20% tip of the cost of the pizza, so if you tip on the pre-tax amount, you pay

$12.99(0.08) = $1.04 in sales tax

$12.99(0.2) = $2.60 for the tip

and $4 delivery charge,

so you pay a total of

$12.99 + $1.04 + $2.60 + $4 = $20.63

8 0

3 years ago

Work out the volume of the shape

pashok25 [27]

Answer:

$\large\boxed{V=\dfrac{1,421\pi}{3}\ cm^3}$

Step-by-step explanation:

We have the cone and the half-sphere.

The formula of a volume of a cone:

$V_c=\dfrac{1}{3}\pi r^2H$

r - radius

H - height

We have r = 7cm and H = (22-7)cm=15cm. Substitute:

$V_c=\dfrac{1}{3}\pi(7^2)(15)=\dfrac{1}{3}\pi(49)(15)=\dfrac{735\pi}{3}\ cm^3$

The formula of a volume of a sphere:

$V_s=\dfrac{4}{3}\pi R^3$

R - radius

Therefore the formula of a volume of a half-sphere:

$V_{hs}=\dfrac{1}{2}\cdot\dfrac{4}{3}\pi R^3=\dfrac{2}{3}\pi R^3$

We have R = 7cm. Substitute:

$V_{hs}=\dfrac{2}{3}\pi(7^3)=\dfrac{2}{3}\pi(343)=\dfrac{686\pi}{3}\ cm^3$

The volume of the given shape:

$V=V_c+V_{hs}$

Substitute:

$V=\dfrac{735\pi}{3}+\dfrac{686\pi}{3}=\dfrac{1,421\pi}{3}\ cm^3$

7 0

3 years ago

Collect data from all your family members and write down their heights (in cm).

bija089 [108]

Answer:

mode : the value that appears most frequently in a data set

mean : te everage of all number

median : the middle number in a sorted, ascending or descending

range : the difference between the largest and smallest numbers.

ANSWER ;

mode : none

mean : 145.4 ( you need to add all the number and divide by how many your family member)

median : 159

range : 80 ( the largest - the smallest)

4 0

3 years ago

A rhombus is ____ a quadrilateral.<br><br> A) Never<br> B) Sometimes<br> C) Always

Alchen [17]

Answer:

Step-by-step explanation:

A rhombus always has 4 sides, making it a quadrilateral.

Feel free to ask further questions..

5 0

3 years ago

Read 2 more answers