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2 years ago

For f(x) = x + 7, find f(x) when x = 3 and when x = -5.

Mathematics

1 answer:

denpristay [2]2 years ago

6 0

Answer:

When x = 3

f(3) = 3 + 7 = 10

When x = -5

f(-5) = -5 + 7 = 2

please mark me the brainliest

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) a smart phone has dimensions of 4.9 inches (height), 2.3 inches (width) and 8.0 millimeters (depth). what is the volume of the

mariarad [96]

Answer: 58.11 cm³

Step-by-step explanation:

1. The volume can be calculated with the following formula:

$V=h*w*d$

Where l is the lenght, w is the width and h is the heigth of the smartphone.

2. You know that the dimensions are:

$h=4.9in\\w=2.3in\\d=8mm$

3. Convert the height and the width from inches to centimeters, as following:

$h=\frac{4.9in*2.54cm}{1cm}=12.44cm$

$w=\frac{2.3in*2.54cm}{1cm}=5.84cm$

4. Convert milimeters to centimeters:

$d=\frac{8mm}{10}=0.8cm$

4. Then, the volume is:

$V=(12.44cm)(5.84cm)(0.8cm)=58.11cm^{3}$

6 0

3 years ago

Please help I will mark brainlist if correct

Furkat [3]

Hi there!

Since the slope of a line perpendicular to a line is always the negative inverse of that slope, you just switch the numerator and denominator around and add or omit the negative sign to the original slope.

The answer would be -2.

Hope this helps!

5 0

3 years ago

When a certain polynomial is divide by binomial x-3, the result is 4x-5+6/x-3. What is the polynomial

Dmitry_Shevchenko [17]

$\frac{p(x)}{x-3} = 4x-5 + \frac{6}{x-3}$

The polynomial p(x) can be found by multiplying 'x-3' to every term
$p(x) = (4x-5)(x-3) + 6$

Now distribute and you have your answer.
$p(x) = 4x^2 -12x-5x+15 +6 \\ \\ p(x) = 4x^2 -17x+21$

7 0

3 years ago

A cylinder shaped container has a radius of 30 cm and a height of 100 cm. A glass sphere with a redius of 12 cm is placed inside

Artemon [7]

Vcylinder-Vsphere=water

Vcylinder=hpir^2
Vsphere=(4/3)pir^3

given

cylinderradius=30 and h=100
Vcylinder=100pi30^2=100pi900=90000pi
let's leave it in terms of pi for more exactness

sphereradius=12
Vsphere=(4/3)pi12^3=2304pi

cylinder-sphere=90000pi-2304pi=87696pi
using pi=3.14
water=275365.44 cubic cm

last option is corrrect

4 0

3 years ago

answer the question i will mark you brainliest. komal has 473 rupees .Muneeb has 273 rupees.How many more rupees does Komal have

nexus9112 [7]

Answer:

200

Step-by-step explanation:

473 - 273 = 200

6 0

3 years ago

Read 2 more answers

For f(x) = x + 7, find f(x) when x = 3 and when x = -5.​

For f(x) = x + 7, find f(x) when x = 3 and when x = -5.