Solve for x and y by using elimination. 4x - 3y = 12 x + 2y = 14​

Answer:

8579 mm^3

Step-by-step explanation:

The formula for the volume of a sphere is V = (4/3)(pi)(r)^3, where r is the radius.  

Here the radius is (appears to be) 16 mm.

Thus, the radius of this sphere is V = (4/3)(pi)(16 mm)^3, or 28268 mm^3.

But we want the volume of the hemisphere (half sphere).  Thus,

divide the above result by 2:

The volume of this hemisphere is 8579 mm^3

Answer:

8.582

Step-by-step explanation:

volume of hemisphere is 2 / 3 π r^3

2/3 πr^3

π is 22/7

r is 1.6 mm

2/3 × 22/7 × 1.6^3 = 8.582 to 3 decimal places

Answer:

There are 3 x’s so the answer would be 30

Answer: The radius is 5.  Hopefully this helps. :)

Step-by-step explanation:

V = π r2 h                            125/5=25

125π = π r2 5                       r2=25

125π= π*5^2*5                       r=5

Answer:

B

Step-by-step explanation:

The opposite angles in a cyclic quadrilateral are supplementary, sum to 180°

∠ I + ∠ K = 180° , that is

91° + ∠ K = 180° ( subtract 91° from both sides )

∠ K = 89° → B

A b f hopefully this helps I will not Explain

Answer:

donuts:  $5.00

croissants: $9.00

Step-by-step explanation:

c - croissants

d - donuts

(1) 3d + 5c = 60        

(2) 4d + 5c = 65

solve for 5c in equation (1)

5c = 60 -3d

substitute 5c = 60-3d into (2)

4d + (60 - 3d) = 65

d + 60 = 65

d = 5      

to find c substitute d = 5 into (1)

3(5) + 5(c) = 60

15 + 5c = 60

5c = 45

c = 9

Answer:

11 feet

Step-by-step explanation:

The radius of the circular garden is approximately 22 feet.

The formula to calculate the circumference of a circle is given by:

C = 2πr

where C is the circumference and r is the radius of the circle.

We are given the circumference as 138.16 feet, so we can set up the equation:

138.16 = 2 * 3.14 * r

To solve for the radius (r), we can rearrange the equation:

138.16 = 6.28r

Dividing both sides of the equation by 6.28:

138.16 / 6.28 = r

r ≈ 22

Therefore, the radius of the circular garden is approximately 22 feet.

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Correct question is;

Factor out the GCF from the given polynomial. 10x³ + 16x² - 18x. (Type your answer in factored form.)​

Answer:

GCF = 5x² + 8x - 9

Step-by-step explanation:

The given polynomial is;

10x³ + 16x² - 18x

First thing is to inspect the coefficients and see the greatest number that all three can be divided by evenly without remainder.

The greatest number is 2.

Secondly let's inspect the variables to see what we can factor out.

They all contain x. Thus, x is a factor.

Thus, we will divide each term by 2x to obtain the GCF of the polynomial.

GCF = (10x³/2x) + (16x²/2x) - (18x/2x)

GCF = 5x² + 8x - 9

Answer:

7/40

Step-by-step explanation:

(70_56)/80

= 14/80

divided by 2

=7/40

Answer:

13:5

Step-by-step explanation:

Messy played 65 minutes while the substitute played 25 minutes. This ratio is 65:25 and can be simplified to 13:5.

Answer:

It would be 1 since x is directly = to y

Step-by-step explanation:

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Answer: 2 Squareroot(2)

Explanation:

I hope this helped!

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- Zack Slocum

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Answer:

Step-by-step explanation:

The simplest form is 78.

Answer:

yes

Step-by-step explanation:

Answer:

No

Step-by-step explanation:

None of the given sides or angles are congruent, so they are not congruent.

Answer: 8

Step-by-step explanation:

x^2 = (34•34)-1,092

x^2= 1,156-1,092

x^2= 64

x=8

Answer:

C

Step-by-step explanation:

The area (A) of the triangle is calculated as

A = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the perpendicular height )

The triangle is equilateral , since 3 angles = 60°

Then base AB = 12

Find height CD using the sine ratio in the right triangle ( there are 2 )

sin60° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{CD}{BC}[/tex] = [tex]\frac{CD}{12}[/tex] = [tex]\frac{\sqrt{3} }{2}[/tex] ← exact value of sin60° ( cross- multiply )

2CD = 12[tex]\sqrt{3}[/tex] ( divide both sides by 2 )

CD = 6[tex]\sqrt{3}[/tex]

Then

A = [tex]\frac{1}{2}[/tex] × 12 × 6[tex]\sqrt{3}[/tex] = 6 × 6[tex]\sqrt{3}[/tex] = 36[tex]\sqrt{3}[/tex] units² → C

Answer:

345.8 meters

Step-by-step explanation:

Given that :

Distance between floors = 3.8 m apart

Moving from floor 32 to the top

Number of floors moved = 123 - 32 = 91 floors

Distance traveled :

Distance between floors * number of floors moved

3.8 m * 91 = 345.8 meters

Answer:

os 36°: The cosine of 36 degrees can be calculated by using a pentagon. ... sin 18° and sin 72°: Taking the equivalent sine and cosine values of 15° and 18° on ... I angle (the "I" in this expression stands for th

Step-by-step explanation:

Given:

The equation is:

[tex]x^2+5x=2[/tex]

To find:

The solution of the given equation by completing the square.

Solution:

We have,

[tex]x^2+5x=2[/tex]

We need to add the square of half of the coefficient of x on both sides.

Adding [tex]\left(\dfrac{5}{2}\right)^2[/tex] on both sides, we get

[tex]x^2+5x+\left(\dfrac{5}{2}\right)^2=2+\left(\dfrac{5}{2}\right)^2[/tex]

[tex]\left(x+\dfrac{5}{2}\right)^2=2+\dfrac{25}{4}[/tex]

[tex]\left(x+\dfrac{5}{2}\right)^2=\dfrac{8+25}{4}[/tex]

[tex]\left(x+\dfrac{5}{2}\right)^2=\dfrac{33}{4}[/tex]

Taking square root on both sides, we get

[tex]x+\dfrac{5}{2}=\pm \sqrt{\dfrac{33}{4}}[/tex]

[tex]x=\pm \dfrac{\sqrt{33}}{2}-\dfrac{5}{2}[/tex]

[tex]x=\dfrac{\pm \sqrt{33}-5}{2}[/tex]

[tex]x=\dfrac{\sqrt{33}-5}{2}[/tex] and [tex]x=\dfrac{-\sqrt{33}-5}{2}[/tex]

Therefore, the solutions of the given equation are [tex]x=\dfrac{\sqrt{33}-5}{2}[/tex] and [tex]x=\dfrac{-\sqrt{33}-5}{2}[/tex].

Answer: d and e

Step-by-step explanation:

edge 2021 :)

Pythagorean Theorem

Step-by-step explanation:

a squared time b squared plus c squared I think

Answer:

3ft

Step-by-step explanation:

c^2 = a^2 + b^2 so, we have c = 5ft, and  lets call this one a = 4ft

so: x^2 = 5^2 - 4^2 => x = sqrt(25 - 16) => x = 3ft

Answer:

[tex]x \geq 15[/tex]

Step-by-step explanation:

Solving an inequality is very similar to solving an equation, one uses inverse operations. The only major difference between the two is that when one multiplies or divides an inequality by a negative number, one must remember to flip the inequality sign to ensure that the inequality remains true. In this situation, such a rule does not come into play.

[tex]\frac{x}{5} - 8 \geq -5[/tex]

Inverse operations,

[tex]\frac{x}{5}-8 \geq -5\\ +8\\\\\frac{x}{5} \geq 3\\*5\\\\x \geq 15[/tex]

Answer:

P = 31.6

Step-by-step explanation:

distance of AB and CD is 5 units each (used Distance Formula)

distance of BC and AD is [tex]\sqrt{117}[/tex] units each (used Distance Formula); which is

6[tex]\sqrt{13}[/tex]

2(6[tex]\sqrt{13}[/tex]) + 10 = 31.6

Answer:

The make geometry easier to understand from a description of their properties and they provide the foundation from which geometry is built. provide clear meaning by identifying classifications and specific characteristics of those figure, process or idea that need to be distinguished and defined.

There are a lot of works in math. The undefined terms makes geometry easier to understand from a description of their properties and provides the foundation from which geometry is built.

Axioms are known to be statements made about a set of  real numbers. Note that real numbers are a vital part of geometry when it comes to taking figures, axioms are very important.

Geometric Mathematical Structures  is known to be a Greek words “geo” that connote  “earth” and “metria” meaning “measurement”.

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Answer:

When you round the answer it's 210 because for population you round it

Step-by-step explanation:

Answer:

200 , got it correct on test !

Step-by-step explanation:

Answer:

A 5873.814042

B 90%

Step-by-step explanation:

Answer:

(5 x + 7)(x^2 + 3)

Answer:

BA

Step-by-step explanation:

The hypotenuse is the longest side or opposite the right angle.

Answer:

AB

Step-by-step explanation:

The pythagorean theorem is AC² + CB² = AB²

AB represents the hypotenuse

Answer:

b

Step-by-step explanation:

Given

12x+ 8 = 10x + 18 ( subtract 10x from both sides )

2x + 8 = 18 ( subtract 8 from both sides )

2x = 10  ( divide both sides by 2 )

x = 5

The equation has one solution

Answer:

B

Step-by-step explanation:

verification

12 x 5 + 8 = 10 x 5 + 18

68= 68

since the answer is 68

it is the only one answer that you can get