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3 years ago

Disruptive properties 5(4 + 7x)

Mathematics

2 answers:

Natalka [10]3 years ago

8 0

Wouldn’t it be 5 + 11x

Gnesinka [82]3 years ago

5 0

Answer:

It is 35x+20

Step-by-step explanation:

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A circle has a mass of 3 grams and a square has a mass of 2 grams. what is the mass of a triangle in grams.

svp [43]

Answer:

Step-by-step explanation:

from some other question so thank this guy

Frika

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What is the measure of angle A in the given triangles?

slava [35]

Answer:

Step-by-step explanation:

A + 32° + 45° = 180°

A + 77° = 180°

A = 180° - 77°

A = 103°

I hope I've helped you.

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3 years ago

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Evaluate 6(41 - 21) - 6(20-2) = ____

arlik [135]

First you should distribute and then you can do the subtraction which will give you 12.

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3 years ago

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anygoal [31]

Answer:

The equation of circle is $(x-8)^2+(y-4)^2=5$

(D) is correct option.

Step-by-step explanation:

Given that,

Points (6,5), (7,2), (9,6) and (10,3) are vertices of an inscribed square.

We need to calculate the distance between (7,2) and (9,6)

Using formula of distance

$d=\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}$

Put the value into the formula

$d^2=(9-7)^2+(6-2)^2$

$d^2=20\ m$

The radius will be

$r^2=\dfrac{20}{4}$

$r^2=5$

We need to calculate the center of the point (7,2) and (9,6)

Using formula of center point

For x axis,

$h=\dfrac{x_{2}+x_{1}}{2}$

Put the value into the formula

$h=\dfrac{9+7}{2}$

$h=\dfrac{16}{2}$

$h=8$

For y axis,

$k=\dfrac{y_{2}+y_{1}}{2}$

Put the value into the formula

$k=\dfrac{6+2}{2}$

$k=\dfrac{8}{2}$

$k=4$

We need to find the equation for the circle

Using formula of equation of circle

$(x-h)^2+(y-k)^2=r^2$

Put the value into the formula

$(x-8)^2+(y-4)^2=5$

Hence, The equation of circle is $(x-8)^2+(y-4)^2=5$

(D) is correct option.

8 0

3 years ago

Find the average rate of change for f (x)=x2+7x+10 from x=0 to x=2

scoray [572]

Answer:

Step-by-step explanation:

$average~rate~of~change = \dfrac{f(x_2) - f(x_1)}{x_2 - x_1}$

$x_1 = 0$

$x_2 = 2$

$f(x_1) = f(0) = 0^2 + 7(0) + 10 = 10$

$f(x_2) = f(2) = 2^2 + 7(2) + 10 = 4 + 14 + 10 = 28$

$average~rate~of~change = \dfrac{f(x_2) - f(x_1)}{x_2 - x_1}$

$average~rate~of~change = \dfrac{28 - 10}{2 - 0}$

$average~rate~of~change = \dfrac{18}{2}$

$average~rate~of~change = 9$

5 0

3 years ago

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