w(x) = −3x− 4; Find w(7)

Answer:

Third one

−10×3−4

Step-by-step explanation:

-30-4

-34

Answer:

-10 · 3 - 4

Step-by-step explanation:

20 - (-3) + 51 ÷ (-3) = 20 + 3 + 51 ÷ (-3) = 20 + 3 - 17 = 6 no

-2 - (-8) + 7 + (-11) = -2 + 8 + 7 - 11 = 2 no

-10 · 3 - 4 = -30 - 4 = -34 yes!

-4 · (-3) + 22 = 12 + 22 = 34 no

Answer:

9424.78cm^3

3141.59cm^3

6282.67 cm^3

Step-by-step explanation:

the equation for a cylinder's volume is pi(r)^2(height)

The volume of the largest cylinder is 3.14(10)^2(30) = 9424.78cm^3 (remember the units!)

The volume of t he smallest cylinder is 1/3 the largest or: 9424.78/3 = 3141.59cm^3 (remember the units!)

The volume of the medium cylinder is 2/3 the largest or 9424.78(2/3) = 6282.67 cm^3

The number will be "6".

Let,

According to the question, the equation will be:

By solving the above expression, we get

→ [tex]6\times x=36[/tex]

By applying cross-multiplication, we get

→ [tex]x = \frac{36}{6}[/tex]

→    [tex]= 6[/tex]

Thus the above response i.e., "option b" is correct.

Learn more:

https://brainly.com/question/13238838

Answer:

6:4

This ratio means that for every 6 basketballs there are 4 soccer balls.

Answer:

Its D

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Note that i² = - 1

Given

(4 - 2i)(1 + 7i) ← expand factors using FOIL

= 4 + 28i - 2i - 14i²

= 4 + 26i + 14

= 18 + 26i → B

Answer:

volume of the sphere

[tex] \frac{4}{3} \times \pi \times {r}^{3} \\ \frac{4}{3} \: \times \pi \times 1000 \\ 1333.333333333\pi {in}^{3} [/tex]

answer is option C

Answer:

1. N/A

2. √V/pi*h= r

Step-by-step explanation:

1. when you try to get r on one side, the r's cancel out

2. V/pi*h= r^2

√V/pi*h= r

Answer:

7th term is -1

Step-by-step explanation:

Mathematically, we have the nth term of a geometric sequence as:

Tn = ar^(n-1)

where a is the first term

n is the number of terms

T4 = ar^3

64 = -4096 * r^3

r^3 = -64/4096

r^3 = -1/64

r^3 = (-1/4)^3

r = -1/4

The 7th term is:

T7 = ar^6

T7 = -4,096 * (-1/4)^6

T7 = -1

The 7th term is -1

Answer:

12.5%

Step-by-step explanation:

Answer:

Solution given:

radius [r]=4

height [h]=5

we have

Surface area of cylinder=2πr(r+h)

=2π×4(4+5)

=72πunits³ is a required volume.

The expression to convert celcius to Fahrenheit isn't given.

Answer:

59°F

Step-by-step explanation:

However, the expression required for the conversion is :

Temperature (°F) = [Temperature (°C) * 1.8] + 32

Therefore, using the expression, we can convert a celcius temperature of 15°C to Fahrenheit ;

Temperature (°F) = (15 * 1.8) + 32

Temperature °F = 27 + 32

Temperature °F = 59°F

Answer:

Number of girls shorter than [tex]60[/tex] inches are [tex]301[/tex].

Step-by-step explanation:

Given: The heights of the population of girls in an Arlington, NY school follows a normal distribution.

Mean[tex]=63[/tex]

Standard deviation[tex]=2[/tex]

Total number of girls[tex]=450[/tex]

Now using the formula,

Standard normal variant, [tex]z=\frac{x-mean}{standard deviation}[/tex]

Now, substitute the values and replace [tex]x[/tex] by [tex]60[/tex]

So. [tex]z=\frac{60-63}{2}[/tex]

[tex]z=-\frac{3}{2}[/tex] or [tex]-1.5[/tex]

Now, probability of girls shorter than [tex]60[/tex] inches

[tex]p(z>-1.5)=0.668[/tex]              look up the value in the normal distribution table

Therefore, number of girls shorter than [tex]60[/tex] inches

[tex]=0.668[/tex]×[tex]450[/tex]

[tex]=301[/tex]

Answer:

I think it is D, but I am not sure.

Step-by-step explanation:

Have a nice day!

Answer:

Below

Step-by-step explanation:

Well I can't really see the equation but I can tell you how to do it.

Parallel slopes are the same slope as the equation.

For example, y = mx + b

The slope of a line parallel to it is m

Perpendicular slopes are the opposite reciprocal as the equation.

For example, y = mx + b

The slope of a line perpendicular to it is[tex]-\frac{1}{m}[/tex]

Answer:

parallel: -8

perp: +1/8

Step-by-step explanation:

parallel lines have the same slopes

perp lines have opposite reciprocal slopes

Answer:

C. 4

Please mark as brainliest if answer is right

Have a great day, be safe and healthy  

Thank u  

XD  

Answer:

c. 4

Step-by-step explanation:

first arrange the data in order.(you can use both ascending and descending order).

2,3,4,5,8

there are 5 numbers and 5 is odd so simply the middle value is the median.

but if it is even the average of the middle values is the median

x=7, y=-2, and z=-2

just trust me on it

Answer:

4cm

Step-by-step explanation:

Volume of a rectangular prism is V = L x W x H

plug in what we know:

192 = 8 x 6 x H

192 = 48H

divide both sides by 48

H = 4

The surface area of the cone is 119π

Surface area of a cone = πr(r + l)

where

Therefore,

r = 7 cm

l = 10 cm

Hence,

Surface area of the cone = 7π(7 + 10)

Surface area of the cone = 7π(17)

Surface area of the cone = 119π

learn more on surface area here:https://brainly.com/question/15033254

#SPJ1

Answer: option D. 119

Step-by-step explanation:

surface area of cone =[tex]\pi[/tex] x r x l + [tex]\pi[/tex] x r^2

r =7 l =10

pi x 7 x 10 + pi x 7^2

Answer:

what is this

Step-by-step explanation:

Answer

8. b

9.C

10.a

11.a

12. c

13. b

brainliest pls <3

Answer:

SSS

Step:

I think it might be this not very sure

Answer:

ASA

Step-by-step explanation:

A and C are congruent (angle) and then ad and dc are also (side) and they both have a right angle 90 (angle)

Step-by-step explanation:

a) (i) length = 2(pi)r = 2(3.14)(.5 m) = 3.14 m

(ii)3.14 m × ($4.70/m) = $14.76

b) A = (pi)r^2 = (3.14)(18 m)^2 = 1017.9 m^2

Answer:

4(5x-2y)

Step-by-step explanation:

You can only take out the 4 because 20 and 8 are divisible by 4. You also can't take out x because it's only next to the 20 in the equation.

Answer:

12

Step-by-step explanation:

a+b+the square root of [tex]a^{2}[/tex]+[tex]b^{2}[/tex]

7+[tex]\sqrt16+9[/tex]

Answer:

26

Step-by-step explanation:

Answer:

QR = 30

Step-by-step explanation:

GHI ~ PQR means that PQR is the same shape and length ratios as GHI but is a different size.

All of the leg lengths of GHI are multiplied by something to get the leg lengths of PQR.

You're given the leg lengths 12 and 20. So you need to find out what 12 is multiplied by to get to 20. 12 * 5/3 = 20.

So multiply 5/3 by the other leg length 18.

18 * 5/3 = 30

So QR = 30

Answer:

72xy1

Step-by-step explanation:

becuz the multiple of 9,6 and 24 is 72 and the multiple of x is 1x which is just x and the multiple of y is 1y