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2 years ago

There are 17 adult dogs and 8 puppies at the dog park. Which statement is

Mathematics

1 answer:

hammer [34]2 years ago

3 0

Answer:

B?!

I'm so sorry if I am wrong !

Step-by-step explanation:

Have A Wonderful Day !!

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Calculate the perimeter of the composite figure. Round your answer to the nearest hundredth. Use 3.14 for $\pi$ .

Elena-2011 [213]

1. Perimeter is 3 + 3 +3 +4 +5 = 18 feet

Area = 3*3 = 9, 1/2*3*4 = 6, 9 + 6 =15 square feet

2. perimeter = 2.5 +2.5+ 2.5+2.5+0.5+0.5 = 11 meters

Area = 3*.5 = 1.5, 3*2=6, 6+1.5 = 7.5 square meters

3. perimeter = 3.14*2*3 = 18.84 +8 = 26.8 inches

Area = 6*4 = 24 + 3.14*3^2 = 28.26 = 28.26 +24 = 52.3 inches

4. surface area = 2*π*6*20+2*π*6^2= 980.2 yards

Volume = π*6^2*20 = 2261.9 cubic yards

5.surface area = 2*(9*7+2*2+2*9) = 190 cm

Volume = 2*7*9 = 126 cubic cm

6. surface area = 2*(11*11+11*11+11*11) = 726 mm

Volume = 11 *11*11 = 1331 cubic cm

3 0

2 years ago

a. Write and simplify the integral that gives the arc length of the following curve on the given integral. b If necessary, use t

WINSTONCH [101]

Answer:

\int\limits^{\pi/2} _0 (1+4cos^{2} (2x)dx

Step-by-step explanation:

Arc length is calculated by dividing the arcs in to small segments ds

By pythagoren theorem

$ds^2=dx^2+dy^2$

then integrate ds to get arc length.

We are given a function as

y = sin 2x in the interval [0, pi/2]

To find arc length in the interval

Arc length $s =\int\limits^{\pi/2} _0 {1+y'^2} \, dx \\=\int\limits^{\pi/2} _0 (1+4cos^{2} (2x) )dx$

Hence arc length would be

B) $\int\limits^{\pi/2} _0 (1+4cos^{2} (2x)dx$

6 0

3 years ago

Question 4(Multiple Choice Worth 3 points) (07.04) The solution to 7x = 42 is x = ___. 4 5 6 7

Blizzard [7]

Answer:

X = 6

Step-by-step explanation:

Since

$7x = 42 \\ x = \frac{42}{7} \\ x= 6$

5 0

3 years ago

I need your help guys please

myrzilka [38]

1) 2x+14=x+18
2x=x+4
x=4

2) 9y-2=3y+10
9y=3y+12
6y=12
y=2

3) 2*(2[4]+14) + (9[2]-2)

4) 32/2=16

5) 11*2=22

4 0

2 years ago

inverse of f(x)=(x+1)/(2x+1) I know how to get the inverse if the bottom or top of the fraction have an x on their own, but i am

kodGreya [7K]

To solve for the inverse
1. replace f(x) with y
2. switch all x with y and y with x
3. solve for y
4. replace y with $f^{-1}(x)$

$f(x)=\frac{x+1}{2x+1}$
replace
$y=\frac{x+1}{2x+1}$
switch
$x=\frac{y+1}{2y+1}$
solve
$(2y+1)(x)=y+1$
$2yx+x=y+1 [tex]x-1=y-2xy$
$x-1=y(1-2x)$
$\frac{x-1}{1-2x}=y$
$y=\frac{x-1}{1-2x}$
replace
$f^{-1}(x)=\frac{x-1}{1-2x}$

7 0

3 years ago