9x - 2y = 19, 7x = 21
System of Equation

Answer:

ok so 6 is half of 12 so we have to find half or 84 which is

42

Hope This Helps!!!

Answer: The answer is 42.

84/2= 42. May I have the brainiest?

Answer:

x = 114

Step-by-step explanation:

114 and x are vertical angles, therefore they are congruent.

Answer:

Vertical Angles are equal so 114

Step-by-step explanation:

Answer:

Step-by-step explanation:

circumference of a circle=2πr

=2*3.14*14

=28*3.14

=87.92 cm

Answer:

its the 4th one

Step-by-step explanation:

Answer:

the answer is C y=1.518x+0.995

Step-by-step explanation:

Answer:

$60

Step-by-step explanation:

x - 15 = 45

x = 15 + 45

x = 60

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

45+15= 60

$60 is how much the original value was.

Hope this helped!

Answer:

The volume of the cylinder is about 1256.6 cubic meters.

Step-by-step explanation:

The volume of a cylinder is given by the formula:

[tex]\displaystyle V=\pi r^2h[/tex]

Where r is the radius and h is the height.

Our radius is 10 meters and our height is four meters. Substitute:

[tex]\displaystyle V=\pi(10)^2(4)[/tex]

Evaluate:

[tex]V=400\pi \text{ m}^3\approx 1256.6\text{ m}^3[/tex]

Thus, the volume of the cylinder is about 1256.6 cubic meters.

Answer:

D

Step-by-step explanation:

The statement that is also true is: [tex]\triangle QRS \cong \triangle YZX[/tex]

The congruence statement is given as:

[tex]\triangle QSR \cong \triangle YXZ[/tex]

The above statement means that, we have the following corresponding points

The above highlights mean that:

Triangle QSR corresponds to triangle YXZ

It also means that:

Triangle QRS corresponds to triangle YZX

Hence, the correct congruency statement is: [tex]\triangle QRS \cong \triangle YZX[/tex]

Read more about congruent triangles at:

https://brainly.com/question/1675117

Answer:

The question seems incomplete, but this statement would be true for all x below 3 (you can put any number less than 3 in it and get a true statement)

Answer:

x = 2, P = 22 cm, A = 21 cm²

Step-by-step explanation:

The 2 legs of the triangle are congruent , then

6x - 4 = 8 ( add 4 to both sides )

6x = 12 ( divide both sides by 6 )

x = 2

perimeter = 8 + 8 + 6 = 22 cm

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

Here b = 6 and h = 7 , then

A = [tex]\frac{1}{2}[/tex] × 6 × 7 = 3 × 7 = 21 cm²

Answer:

x = 2

Perimeter = 22 cm

Area = 21 cm²

Step-by-step explanation:

=> We know that the 2 side lengths of the given triangle are congruent, because of the congruency mark theorems, therefore to solve for x first, we can say;

6x - 4 = 8

6x = 8 + 4

6x = 12

x = 12/6

x = 2

Now that we know the side lengths of the triangles are 8, 8 and 6, we can find the perimeter;

Side 1 + Side 2 + Side 3 = Perimeter

8 + 8 + 6 = Perimeter

22 = Perimeter

Lastly to find the Area of the triangle, follow the formula of;

A = 1/2 (b * h)

A = 1/2 (6 * 7)

A = 1/2 (42)

Area = 21

Hope this helps!

Answer:

To determine to measure of the unknown angle, be sure to use the total sum of 180°. If two angles are given, add them together and then subtract from 180°. If two angles are the same and unknown, subtract the known angle from 180° and then divide by 2.

Step-by-step explanation:

Hope this answer helps you :)

Have a great day

Mark brainliest

Answer:

a and b

Step-by-step explanation:

they're both equal to 25%; 100 reduced by 75 is 25

Answer: Choice B)

-5x^3 + 9x^2 + 2x

=================================================

Explanation:

Standard form is where the largest exponent term goes first, then the next largest, and so on. The exponents are decreasing when moving from left to right.

So that's why -5x^3+9x^2+2x is in standard form. Think of the 2x at the end as 2x^1. That might help show the exponents are decreasing (3,2,1).

The largest exponent is the degree, meaning that we have a third degree polynomial (aka cubic polynomial).

The first term -5x^3 is considered the leading term and -5 is the leading coefficient.

Answer:

not a function because -3 maps to two different values 5 and 6

Step-by-step explanation:

The required diameter of the sphere where the volume is 72 inches is 5.2 inches respectively.

A sphere is a geometrical object that resembles a two-dimensional circle in three dimensions. In three-dimensional space, a sphere is a collection of points that are all located at the same distance from a single point.

The radius of the sphere is denoted by the letter r, and the specified point represents its center.

The sphere is a three-dimensional shape that is sometimes referred to as a circle's second cousin.

A sphere is a solid shape that is circular, without borders.

Balloons, toy balls, and even light bulbs are examples of objects with sphere shapes.

So, the volume of the sphere formula is:

4/3πr³

We know that the volume is 72 inches.

Then calculate as follows:

72 = 4/3πr³

r³ = 72*3/4π

r = 2.58 (Approx)

Rounding off: 2.6 inches

Then the diameter would be:
2.6 * 2 = 5.2 inches

Therefore, the required diameter of the sphere where the volume is 72 inches is 5.2 inches respectively.

Know more about a sphere here:

https://brainly.com/question/22807400

#SPJ1

Correct question:

What is the diameter of a sphere with a volume of 72 in”, to the nearest tenth of an inch?

Answer:

no real answer

Step-by-step explanation:

distribute the -4 and combine all of the like terms on the left side = r-8-4r, then -8-3r

then we have 7-3r=-8-3r

from here, we can already tell that there's no real answer. this is because the two -3r will cancel, leaving no variable.

since 7 doesn't equal -8, there is no answer.

if, for example, the value on both sides of the equal sign were the same after the variable was eliminated, then your answer would be all real numbers

Done done done, W=3.46+8.5

W=11.96!

Hit the heart if it was helpful!

Answer:

11.96

Step-by-step explanation:

Answer:

10 to the power of 6

Step-by-step explanation:

10 x 10 x 10 x 10 x 10 x 10 = 1,000,000

Answer:

[tex]10^{6}[/tex]

Step-by-step explanation:

10 multiplied by itself 6 times is 1,000,000

Answer:

B

Step-by-step explanation:

It sounds most likely to the right answer

¯\_(ツ)_/¯

Answer:

91.7 cm^3

Step-by-step explanation:

[tex]Vol=\frac{1}{3} \times base area \times height=\frac{1}{3} \times 19.8 \times 13.9= 91.7 cm^{3}[/tex]

Answer:

5

Step-by-step explanation:

seven has 5 letters

Answer:

x = 28

Step-by-step explanation:

the angle shown is a right angle

right angle = 90°

•°• (x + 6) + 56 = 90

=> x + 62 = 90

=> x = 90 - 62

Answer:

28

Step-by-step explanation:

5)

(x + 6)° + 56° = 90°

x + 6 + 56 = 90

x + 62 = 90

x = 90 - 62

x = 28

Answer:

bx = - 3

Step-by-step explanation:

- 2(bx - 5) = 16

- 2bx + 10 = 16

- 2bx + 10 - 10 = 16 - 10

- 2bx = 6

- 2bx ÷ - 2 = 6 ÷ - 2

bx = - 3

Answer:

[tex]\frac{-1}{2}ab^{12}[/tex]

[tex]\frac{w^{10}}{3y^4}[/tex]

Step-by-step explanation:

Given the expression;

[tex]\frac{-2a^2b^4}{4ab^{-8}}\\= \frac{-2}{4}*a^{2-1}b^{4-(-8)}\\= \frac{-1}{2}ab^{12}[/tex]

Similarly for the expression;

[tex]\frac{-5w^4y^{-2}}{-15w^{-6}y^2}\\= \frac{-5}{-15}*w^{4-(-6)}y^{-2-2}\\= \frac{1}{3}w^{10}y^{-4} \\= \frac{w^{10}}{3y^4}[/tex]

Answer:

Step-by-step explanation:

There are three right-angled triangles and two of them have x in their dimensions:

The largest one with one side at 48+x and another at 10

The smallest one with one side at x and another at 10

Those 2 right-angled triangles are similar because of AAA - both have a right-angle and share a common angle.

So their sides are in the same ratio:

x / 10 = 10 / (48+x)

x*(48+x) = 10*10

x^2 + 48x - 100 = 0

(x+50)*(x-2) = 0

x = -50 or 2

As length cannot be negative, x = 2

Answer:

Step-by-step explanation:

let the missing side in the upper right triangle be y

x^2 + y^2 = 10^2

let the missing side in the lower left triangle be z

48^2 + y^2 = z^2

subtracting the two eqns

48^2 - x^2 = z^2 - 10^2

z^2 = 48^2 + 10^2 - x^2

for the overall big triangle

z^2 + 10^2 = (48+x)^2

substituting

48^2 + 10^2 - x^2 + 10^2 = 48^2 + 96x + x^2

2x^2 + 96x - 200 = 0

x^2 + 48x - 100 =0

(x+50)(x-2) = 0

x=-50 or 2

rejecting the -ve soln

x=2

Answer:

14.4

Step-by-step explanation:

Answer:

$236.90

Step-by-step explanation:

947.60 / 4 = 236.90

Answer:

x = 3.5

Step-by-step explanation:

2x + 5 = 12

2x = 7

x = 3.5

Hope that helped!

[tex]\sf\purple{The\:value\:of\:x\:is\:3.5.}[/tex] ✅

Step-by-step explanation:

[tex]2x + 5 = 12 \\ ⇢ 2x = 12 - 5 \\ ⇢ 2x = 7 \\ ⇢ x = \frac{7}{2} \\ ⇢ x = 3.5[/tex]

[tex]\boxed{The\:value\:of\:x\:is\:3.5.}[/tex]

[tex]{ \bf{ \underbrace{To\:verify:}}}[/tex]

[tex]2x + 5 = 12 \\ ⇝2 \times 3.5 + 5 = 12 \\ ⇝7 + 5 = 12 \\ ⇝12 = 12 \\ ⇝L.H.S.=R. H. S[/tex]

Hence verified.

[tex]\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘[/tex]

Answer:

The area would be 38.48 square inches.

Step-by-step explanation:

With the radius being 3.5 once you solve it, the area comes out being 38.48 square inches. Hope this helps :D (also can you mark me brainliest)