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2 years ago

12

How many decimals in multiplication.

1 answer:

kari74 [83]2 years ago

8 0

Answer:

In multiplication of a decimal by a decimal number we will learn how to find the product of a decimal by another decimal.

To multiply a decimal number by a decimal number, we first multiply the two numbers ignoring the decimal points and then place the decimal point in the product in such a way that decimal places in the product is equal to the sum of the decimal places in the given numbers.

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Please help square root math

pantera1 [17]

Answer:

2<∛13<3 1<∛6<2

Step-by-step explanation:

Lets find the integers a and b ∛13 lies between.

a<∛13<b

a³<13<b³

=> a=2 so 2³=8 and b=3 so 3³=27 8<13<27

Similarly a<∛6<b

a³<6<b³

a=1 and b=2

7 0

3 years ago

F(x) = 2x - 6,<br><br> find f(10).

siniylev [52]

Answer:

14

Step-by-step explanation:

use the given functions to set up and simplify f (10).

6 0

3 years ago

Find the equation of the tangent line to the curve (a lemniscate)

olya-2409 [2.1K]

Answer:

$m=\frac{9}{13}$ and $b=\frac{40}{13}$

Step-by-step explanation:

The equation of curve is

$2(x^2+y^2)^2=25(x^2-y^2)$

We need to find the equation of the tangent line to the curve at the point (-3, 1).

Differentiate with respect to x.

$2[2(x^2+y^2)\frac{d}{dx}(x^2+y^2)]=25(2x-2y\frac{dy}{dx})$

$4(x^2+y^2)(2x+2y\frac{dy}{dx})=25(2x-2y\frac{dy}{dx})$

The point of tangency is (-3,1). It means the slope of tangent is $\frac{dy}{dx}_{(-3,1)}$ .

Substitute x=-3 and y=1 in the above equation.

$4((-3)^2+(1)^2)(2(-3)+2(1)\frac{dy}{dx})=25(2(-3)-2(1)\frac{dy}{dx})$

$40(-6+2\frac{dy}{dx})=25(-6-2\frac{dy}{dx})$

$-240+80\frac{dy}{dx})=-150-50\frac{dy}{dx}$

$80\frac{dy}{dx}+50\frac{dy}{dx}=-150+240$

$130\frac{dy}{dx}=90$

Divide both sides by 130.

$\frac{dy}{dx}=\frac{9}{13}$

If a line passes through a points $(x_1,y_1)$ with slope m, then the point slope form of the line is

$y-y_1=m(x-x_1)$

The slope of tangent line is $\frac{9}{13}$ and it passes through the point (-3,1). So, the equation of tangent is

$y-1=\frac{9}{13}(x-(-3))$

$y-1=\frac{9}{13}(x)+\frac{27}{13}$

Add 1 on both sides.

$y=\frac{9}{13}(x)+\frac{27}{13}+1$

$y=\frac{9}{13}(x)+\frac{40}{13}$

Therefore, $m=\frac{9}{13}$ and $b=\frac{40}{13}$ .

5 0

3 years ago

Find the percent change:<br><br> $350 to $400

skad [1K]

Answer:

14.29% increase

Hope this helps!

7 0

3 years ago

Read 2 more answers

Write an equivalent unit rate to eating 3 pieces of popcorn in of a minute.

Leviafan [203]

Answer:

180

Step-by-step explanation:

all I did was multiply

i don’t know hope this is correct if not let me know so I can fix my mistake

5 0

2 years ago