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3 years ago

Write an expression to represent the perimeter of the rectangle: 3* +10 * +5

Mathematics

1 answer:

Schach [20]3 years ago

3 0

Answer:

the perimeter is 18

Step-by-step explanation:

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A. The slope of the curve y=x^3- 1 at the point P(1,0) is<br> .

Ierofanga [76]

Answer:

Step-by-step explanation:

The measure of the slope is $\frac{dy}{dx}$ at x = a

Differentiate using the power rule

$\frac{d}{dx}$ (a $x^{n}$ ) = na $x^{n-1}$

Given

y = x³ - 1, then

$\frac{dy}{dx}$ = 3x²

The slope at (1, 0) is

$\frac{dy}{dx}$ = 3(1)² = 3

5 0

4 years ago

Write the equation of a line whose slope is 2/3 and crosses the y axis at (0, -5)

postnew [5]

The equation of line with slope 2/3 and crosses the y axis at (0, -5) is:

$y=\frac{2}{3}x-5$

Step-by-step explanation:

We will use the slope intercept form of the equation to make an equation of the given line

The slope-intercept form is:

$y=mx+b$

Here m is the slope and b is the y-intercept

Given

m = 2/3

Putting the value of slope

$y=\frac{2}{3}x+b$

The y intercept is -5 so we will put in the equation

$y=\frac{2}{3}x-5$

The equation of line with slope 2/3 and crosses the y axis at (0, -5) is:

$y=\frac{2}{3}x-5$

Keywords: Equation of line, slope-intercept form

Learn more about equation of line at:

#LearnwithBrainly

7 0

3 years ago

Students found that a box with sides 4cm, 4cm, and 5 cm held 192 Skittles.

Tpy6a [65]

Answer:

Volume is 80 cc

Ratio is 23 skittles per 20 cubic centimeter

Volume of a skittle is .416 cubic centimeters per skittle

Step-by-step explanation:

Volume = l*w*h = 4*4*5 = 80 cubic centimeters

192 skittles / 80 cubic centimeters is the ratio. You have to simplify it though.

192/80=46/40 23 skittles per 20 cubic centimeters

The volume of a skittle is 80 cubic centimeters/192 skittles = .416 cm^3/skittle

7 0

3 years ago

Read the top and answer 100 points

77julia77 [94]

Answer:

1)30.1029995664

2)69.2980392812

3)168.080670083

4)(3x/3=13/3

x=4.33333333333

5)5x-(5000)=0

5x=5000

x=5000/5

x=1000

6)(2)3(x+2)=(6000)=0

23x+46-6000=0

23x-5954=0

23x=5954

x=5954/23

x=258+20/23

Hope this help you!

7 0

3 years ago

Read 2 more answers

In an effort to make childrenâs toys safer and more tamperproof, toy packaging has become cumbersome for parents to remove in ma

Monica [59]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the following :

Old design samples(n1) = 220

New design samples (n2) = 220

P1 = 81/220 = 0.368 ; P2 = 41/220 = 0.186

Null hypothesis : p1 - p2 ≥ 0.05

Alternative hypothesis : p1 - p2 < 0.05

Using the test statistic formula :

t = (P1 - P2) / √[P(1-P)(1/n1 + 1/n2)]

P = (81 + 41)/(220 + 220) = 122/440 = 0.277

1 - P = 0.723

t = (0.368 - 0.186) / (√(0.277(0.723)(1/220 + 1/220)))

t = 4.265

P value from z test at α = 0.05

P value = 0.00002

Test for significance at α = 0.01 ;

Test for significance at α = 0.1

Result is significant at both α levels, hence reject the Null.

5 0

3 years ago