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3 years ago

Is -7/3 equivalent to -7/-3?

Mathematics

1 answer:

masya89 [10]3 years ago

8 0

Answer:

Step-by-step explanation:

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Which angle is vertical to ∠3?

djverab [1.8K]

Answer:

Step-by-step explanation:

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2 years ago

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Jeannette has $5 and $10 bills in her wallet. the number of fives is three more than six times the number of tens. let t represe

sergejj [24]

Use the expression:

f=fives

t=tens

f+3=6t

f=6t-3

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3 years ago

Which one<br> also whats 473+838=

Mashutka [201]

Answer:

1,311

Step-by-step explanation:

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3 years ago

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Does anyone know the answer to this one?

polet [3.4K]

Answer:

$\large\boxed{a(x+4)(x-5)=0,\ a\in\mathbb{R}-\{0\}}\\\\\text{for}\ a=1\to\boxed{x^2-x-20=0}$

Step-by-step explanation:

$\text{If}\ x_1\ \text{and}\ x_2\ \text{are the roots of the quadratic equation}\ ax^2+bx+c=0,\\\text{then}\ ax^2+bx+c=a(x-x_1)(x-x_2).\\\\\text{If}\ x_1\ \text{and}\ x_2\ \text{, then they are the roots of the quadratic equation.}\\\\\text{We have}\ x_1=-4\ \text{and}\ x_2=5.\ \text{Therefore we have the equation:}\\\\a(x-(-4))(x-5)=0\\\\a(x+4)(x-5)=0\qquad\text{for any value of}\ a\ \text{except 0}.$

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3 years ago

A cylinder has radius of 4 inches and height 10inches.There’s a small cylinder inside the previous cylinder of radius of 2 inche

MaRussiya [10]

The surface area of the cylinder is 48π inches².

<h3>How to find the Surface area of a cylinder?</h3>

Surface area of a cylinder = 2πr(r + h)

where

r = radius
h = height

Therefore,

Surface area of the smaller cylinder = 2 × π × 2(2 + 10)

Surface area of the smaller cylinder = 4π(12)

Surface area of the smaller cylinder = 48π

learn more on Surface area here: brainly.com/question/1780074

#SPJ1

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2 years ago