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3 years ago

Nead help asap please

Mathematics

1 answer:

marissa [1.9K]3 years ago

8 0

Answer:

with what?

Step-by-step explanation:

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Which of the following is a correct interpretation of the expression 5 - 85−85, minus, 8?

statuscvo [17]

Answer:

Step-by-step explanation:

7 0

3 years ago

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About how accurately must the tank's exterior diameter be measured to calculate the amount of paint it will take to paint the si

kondaur [170]

Answer: The error of the diameter would be 5% .

Step-by-step explanation:

Since we have given that

$S=2\pi rh$

Here, r is the radius

h is the height

So, it becomes,

$S=2\pi (\dfrac{D}{2})h\\\\S=\pi Dh\\\\S=\pi D\times 10\\\\S=10\pi D$

So, we will derivate S wrt D, we get that

$\dfrac{dS}{dD}=10\pi\\\\dS=10\pi dD$ ---------------------(1)

As we have given that

it will take to paint the side of the tank to within 5% of the true amount.

So, it becomes,

$dS=0.5\pi D$ ---------------(2)

So, from (1) and (2) , we get that

$0.5\pi D=10\pi dD\\\\\dfrac{0.5\pi}{10\pi}=\dfrac{dD}{D}\\\\0.05=\dfrac{dD}{D}=5\%$

Hence, the error of the diameter would be 5% .

5 0

4 years ago

Addison's budget is shown in the

Minchanka [31]

Addison spends $1050 on rent.

Step-by-step explanation:

Given,

Addison's budget = $3500

Rent = 30%

Other = 15%

Savings = 30%

Groceries = 25%

Therefore,

Rent = 30% of budget

$Rent=\frac{30}{100}*3500\\Rent=0.30*3500\\Rent=\$1050$

Addison spends $1050 on rent.

Keywords: percentage, multiplication

Learn more about multiplication at:

#LearnwithBrainly

5 0

4 years ago

1- Name the Circle 3- Name Two Chords 5- Name a tangent

Gnoma [55]

Answer:

Name: Circle A

Chords: Chord DP, Chord HC

Tangent: EFG

Step-by-step explanation:

Name a circle by the center, in this case it's A.

Chord: A chord is a line only in the circle, not outside of it, and its endpoints are right on the circle.

Tangent of a circle: "Tangent" means touching, and this is a line, in terms of a circle, that touches the circle but is not INSIDE of the circle.

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3 years ago

There are (4^9)5 ⋅ 4^0 books at the library. What is the total number of books at the library?

LenKa [72]

Your answer is B. You multiply 5 by the exponents and 4^0 is just 1, so 4^45•1=4^45. Hope this helped!

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3 years ago