Giving brainliest!!!!!!!!!!!!

Answer:

A'(-9,-3)

Step-by-step explanation:

-3*3=-9

-1*3=-3

Answer:

It's surface area is 1257.14cm^2

Step-by-step explanation:

area=22/7×20cm×20cm

=3.14×20cm×20cm

=1257.14cm^2

[tex]\large\boxed{\pink{\sf \leadsto The \ Volume \ of \ water \ needed \ to \ be \ filled \ is \ 192,500 cm^3}}[/tex]

Given that , cylindrical vessel is 70 cm high and the radius of its base is 35cm . it contains some water up to the height of 20 cm .

And we need to find the water required to fill it completely .

Figure :-

[tex]\setlength{\unitlength}{1 cm}\begin{picture}(12,12)\linethickness{0.4mm}\put(0,0){\line(0,1){5}} \put(3,0){\line(0,1){5}}\qbezier(0,5)(1.5,4)(3,5)\qbezier(0.001,0)(1.5,1)(3,0)\qbezier(0,5)(1.5,6)(3,5)\qbezier(0.001,0)( 1.5, - 1)(3,0)\put(3.5,2){\vector(0,-1){2}}\put(3.5,3){\vector(0,1){2}}\put(3.5,2.5){$\sf 70 cm $}\put(1.4,0){\line(1,0){1.6}} \put(1.4,0.2){$\sf 35cm$}\qbezier(0,2.5)(1.5,3.5)(3,2.5)\qbezier(0,2.5)(1.5, 1.8)(3,2.5)\put(-1,1){\vector(0,-1){1}}\put(-1,1.5){\vector(0,1){1}}\put(-1.3,1.2){$\sf 20cm $}\end{picture}[/tex]

Let us take the Volume of Cylinder be V and the volume of cylinder filled be v . Let the volume required to be filled be X .

From the figure it's clear that , Volume of water required to fill the cylindrical vessel completely will be :-

[tex]\tt:\implies v + x = V \:\: \bigg\lgroup \red{\bf As \ per \ our \ assumption }\bigg\rgroup \\\\\tt:\implies x = V - v \\\\\tt:\implies x = \pi r^2 H - \pi r^2 h \\\\\tt:\implies x = \pi r^2 ( H - h ) \\\\\tt:\implies x = \pi r^2 ( 70 cm - 20 cm ) \\\\\tt:\implies x = \dfrac{22}{7} \times (35 cm)^2 \times 50 cm \\\\\tt:\implies x = \dfrac{22\times 35 cm \times 35 cm }{7} \times 50 cm \\\\\underline{\boxed{\red{\tt \longmapsto Volume_{fill } = 192,500 cm^3}}}[/tex]

The function which has the value of 0 at x = -3 are C. f(x) = (x + 3)² and E. f(x) = 2x - 3(x + 1).

A function is a relation from a set A to a set B where the elements in set A only maps to one and only one image in set B. No elements in set A has more than one image in set B.

A. f(x) = (x - 3)²

Substituting x = 3,

f(-3) = (-3 - 3)² = 36

B. f(x) = x² - 3x

f(-3) = (-3)² - (3 × -3) = 9 + 9 = 18

C. f(x) = (x + 3)²

f(-3) = (-3 + 3)² = 0

Here the function value is 0.

D. f(x) = x² + 5x + 4

f(-3) = 9 - 15 + 4 = -2

E. f(x) = 2x - 3(x + 1)

f(-3) = -6 - 3(-3 + 1) = 0

Here the function value is 0.

F. f(x) = -2(x - 2) + 3x

f(-3) = 1

Hence the required functions are C. f(x) = (x + 3)² and E. f(x) = 2x - 3(x + 1).

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Answer:c will be the answer YW!

Step-by-step explanation:

This is voluntary response bias because graduates may choose to be part of the sample that is most likely to be present in the survey results. Thus option C is correct.

A survey is a set of inquiries designed to elicit specified data from a certain population. Surveys can be carried out via the radio, by postal, online, at town squares, and even in shopping centers.

When elements are personality volunteers who are degree holders, volunteered response bias emerges. Voters determine whether or not they will participate in the sample once the research involved a group of people to do so.

Graduating students may select to be a part of the population that is the most likely to appear in the survey results, resulting in voluntary response bias. Therefore, option C is the correct option.

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Answer:

21 units

Step-by-step explanation:

You use the formula a=1/2 bh to get 21

B=6

H=7

7 times 6 is 42

42/2 is 21

Answer is 21

Answer:

32,52,96

Step-by-step explanation:

Answer:

4.2 ft

Step-by-step explanation:

Given the equation for the Law of Cosines, we can rewrite the equation to solve for "c" directly:

[tex]c^2=a^2+b^2-2ab(cosC)\\c=\sqrt{a^2+b^2-2ab(cosC)}\\c=\sqrt{7^2+8^2-2(7)(8)(cos32)}\\c=\sqrt{49+64-2(56)(cos32)}\\c=\sqrt{113-112(cos32)}\\c=\sqrt{113-94.98138677}\\c=\sqrt{18.01861323}\\c=4.244833711\\c=4.2[/tex]

So the length of c is approximately 4.2 ft

Answer:

x=5

Step-by-step explanation:

Answer:

a

2

−

b

2

=

(

a

+

b

)

(

a

−

b

)

where

a

=

2

and

b

=

x

.

2

(

2

+

x

)

(

2

−

x

)

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

Ok so 3 copies = 40 cents.

75 - 40 = 35.

We only have 35 cents left.

The highest number that can go in 35 with 7 is 5.

Oir original 3 copies + our 5 copies is 8

I did this in my head so sorry if I'm totally wrong.

Answer:

1. 8

2. 10

3. 3000

4. 1440

5. 25

Answer: x=74°

180-133=47 and 47+59=106 so 180-106= 74°

Answer:

6%

Step-by-step explanation:

Interest = Principal × Rate × Time/100

$3780 = $7000(9)(rate)/100

63000rate = 378000

rate= 378000/63000

rate = 6% per annum (Answer)

Answer:

x = 17[tex]\sqrt{3}[/tex]

y = 17

Step-by-step explanation:

You would need to use the following trigonometric functions cosine and sin.  Sin is used for the y-variable to get the answer and cosine is used for the x-variable to get the answer.  For this case, you would need to do 34 sin 30 for y and 34 cos 30 for x.  You should get 17 for y and 17 root 3 for x when you put it in the calculator.

The value of each variable are,

x = 17√3

y = 17

We have to give that,

A triangle is shown in the image.

Now, from the triangle we get;

cos 30° = x/34

Solve for x,

√3/2 = x/34

Cross multiply,

34√3 = 2 × x

2x = 34√3

x = 17√3

And, We get;

⇒ sin 30° = y/34

⇒ 1/2 = y/34

Cross multiply,

⇒ 34 = 2y

⇒ y = 17

Hence, the value of each variable is,

x = 17√3

y = 17

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Answer:

Y alone can do the piece of work in 30 days.

Step-by-step explanation:

Proportions

Let's make:

N = days for Y to finish the work alone

Since X alone can do it in 15 days, each day he can do a proportion of 1/15 of the piece of work.

Since Y alone can (possibly) do it in N days, each day he can do 1/N parts of the work.

Together, they do

[tex]\displaystyle \frac{1}{15}+\frac{1}{N}[/tex]

parts of the work per day. We know they can finish it in 10 days, thus:

[tex]\displaystyle \frac{1}{15}+\frac{1}{N}=\frac{1}{10}[/tex]

Rearranging:

[tex]\displaystyle \frac{1}{N}=\frac{1}{10}-\frac{1}{15}[/tex]

The LCM of 10 and 15 is 30, thus operating:

[tex]\displaystyle \frac{1}{N}=\frac{3-2}{30}=\frac{1}{30}[/tex]

Solving for N:

N = 30

Y alone can do the piece of work in 30 days.

Answer:

8 people

Step-by-step explanation:

20 - 12 = 8

Answer:

SSS

Step-by-step explanation:

BOTH THE TRIANGLES HAVETHE SAME MARKING ON EACH SIDE

THESE MARKING REPRESENT THE LENGTH OF THE SIDE

Answer:

SSS

Step-by-step explanation:

I can't answer this and I don't think anyone can, there is not enough information. (yet again I'm 12 so I can't say much)

Answer:

x<58 the< with line under    the pitcher can throw 58 or less pitches

Step-by-step explanation:

Answer:5/-3

Step-by-step explanation:

5=-3d

Answer:

The answer is Y=6x

Step-by-step explanation:

i just took the text in k12

Answer:

0.8 yards or 28.8 inches

Step-by-step explanation:

I always turn fractions into decimals because it is easier to figure it out and simpler.

So 1/5 would be 2/10 because you multiply the whole thing by 2 to make the denominator 10 so you can turn it into a decimal.

So the decimal is 0.2

You would divide 7.2 by 9 to get 0.8 yards which is 28.8 inches.

Answer:

12 3/8

Step-by-step explanation:

Answer:

Step-by-step explanation: