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3 years ago

How do I do question 6?

Mathematics

1 answer:

vekshin13 years ago

6 0

F(x)=4x+7=0
solve
4x+7=0
minus 7 both sides
4x=-7
divide by 4 both sides
x=-7/4

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Simplify (2+3)squared-16 divided by 2

seraphim [82]

Answer:

it would be 4.5

Step-by-step explanation:

basic explantion

step 1. 3+2 =5

step 2 5x5=25

step 3 25-16=9

step 4 9 divde by 2= 4.5

simplifyed it would be 25-16 ÷ 2

more deatialed explanation.

I added 3+2 to get 5 and i sqaured the 5 to get 25 becasue 5x5 is 25 then i took away 16 and got 9 then i divde 9 by 2 to get 4.5. hope this helped!

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2 years ago

3) "The difference between twice a number and 17 is no more than 13."*

stellarik [79]

Answer:

c<15

Step-by-step explanation:

2x+17 < 13

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2 years ago

Find the total surface area of the cylinder shown. Leave the answer in terms of π. A cylinder with radius 4.25 inches and height

olga_2 [115]

Answer:

$87.125\pi in^{2} or 87\frac{1}{8}\pi in^{2}$

Step-by-step explanation:

Given Surface Area of Cylinder = $2\pi rh+2\pi r^{2}$ ,

and also given r = 4.25 inches and h = 6 inches.

Let's Substitute r and h into the formula to find the total surface area.

Surface Area of Cylinder = $2\pi (4.25)(6)+2\pi (4.25)^{2} \\=51\pi +36.125\pi \\=87.125\pi in^{2} or 87\frac{1}{8} \pi in^{2}$

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1 year ago

Help please thank you!! :)

tankabanditka [31]

Answer:

Area of circle: 1662.57 cm

Circumference of circle: 144.57 cm

Step-by-step explanation:

Formula of area of circle:

pi x r2 or radius x radius

So, it's 22/7 x 23 x 23 = 1662.571429

Formula of circumference of circle:

2 x pi x radius OR

pi x diameter

Let's use the second method, to find diameter it is radius x 2 = 46

So,

46 x 22/7 = 144.5714286

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2 years ago

Can some one help me plzz!! No links!!

Alona [7]

The answer is C.0,3 because One of Y equal 0 for X

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2 years ago