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3 years ago

There are 30 students in the class. Eleven have blue eyes.

Mathematics

1 answer:

Schach [20]3 years ago

8 0

The answer to this question is 7

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Give the digits in the ones place and the hundredths place.<br> 74.12

Simora [160]

Answer:

The digit in the ones place is 4 and the digit in the 100ths place is 2

Step-by-step explanation:

7 0

3 years ago

A triangle has points: A (2,1); B (3, -3); C (-1, 0). If dilated by a scale factor of 1/2, what is point A prime?

saveliy_v [14]

A’=(1,.5) you just multiply the points by whatever the dilation is, so by .5

6 0

3 years ago

Use implicit differentiation to find an equation of the tangent line to the curve at the given point. y 2 ( y 2 − 4 ) = x 2 ( x

yawa3891 [41]

Answer:

y = -2

Step-by-step explanation:

To find the equation of the tangent we apply implicit differentiation, and then we take apart dy/dx

The equation is

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

implicit differentiation give us

$\frac{d}{dx}[y^2(y^2-4)=x^2(x^2-5)]\\\\2y\frac{dy}{dx}(y^2-4)+y^2(2y\frac{dy}{dx})=2x(x^2-5)+x^2(2x)\\\\4y^3\frac{dy}{dx}-8y\frac{dy}{dx}=2x^3-10x+2x^3\\\\\frac{dy}{dx}=\frac{4x^3-10x}{4y^3-8y}$

But we know that

$m=\frac{dy}{dx}\\y=mx+b$

Hence, for the point (0,-2) and by replacing for dy/dx

$m=\frac{dy}{dx}_{(0,-2)}=\frac{4(0)+10(0)}{4(-2)^3-8(-2)}=0$

Hence m=0, that is, the tangent line to the point is a horizontal line that cross the y axis for y=-2. The equation is:

y=(0)x+b = -2

HOPE THIS HELPS!!

4 0

4 years ago

Emily is entering a bicycle race for charity. Her mother pledges $0.40 for every 0.25 mile she bikes. If Emily bikes 15 miles, h

Dominik [7]

Set it into proportions.

$0.40/0.25 miles = x/15 miles

And then solve the proportion.

0.25*x = 0.40*15

0.25x = 6

0.25x/0.25 = 6/0.25

x=24

Therefore, Emily's mother donates $24 if she bikes 15 miles.

5 0

4 years ago

Read 2 more answers

Mashcka [7]

Answer:

$\frac{11}{20}$

Step-by-step explanation:

We are told that at the popular restaurant Fire Wok, 55% of guests order the signature dish.

To find the fraction of guests who ordered the signature dish we can write 55% as 55 divided by 100.

$\text{Fraction of guests ordered the signature dish}=\frac{55}{100}$

Upon simplifying our fraction we will get,

$\text{Fraction of guests ordered the signature dish}=\frac{11}{20}$

Therefore, $\frac{11}{20}$ of the guests at the restaurant Fire Wok ordered the signature dish.

4 0

4 years ago