this is extremely hard and im not very smart:(

Answer:2

Step-by-step explanation:

Answer:

16 cm

Step-by-step explanation:

Area of a triangle=(b×h)/2

Height=2 (area)/base

H=2(88)/11

H=176/11

H=16 cm

Answer:

sqrt(64)

Step-by-step explanation:

The square root of 64 = 8  and 8 is a rational number

Answer:

C. √64

Step-by-step explanation:

The square root of 64 is rational. It is rational because the square root of 64 is 8. 8 is a rational number.

Answer:

144 (thank me) ( and also brainliest)

Step-by-step explanation:

p/4=36

144/4 gives you 36

p or x would be 144

Answer:

a≈4

Volume 64

Step-by-step explanation:

Answer:

a=6

Step-by-step explanation:

-6(2+(6)=-48

-6(2+6)=-48

(-6X2)+(-6+6)=-48

(-12)+(-36)=-48

-48=-48

They are equal. Tell me if I made a mistake. Thanks!

Answer:

B

Step-by-step explanation:

[tex]\frac{2}{3}x +6<10[/tex]

subtract 6 from both sides

[tex]\frac{2}{3}x <4[/tex]

divide by 2/3(or multiply by 3/2)

[tex]x<6[/tex]

and thats your answer

Answer:

The answer is D

Step-by-step explanation:

Crown me?

Answer:

D

Step-by-step explanation:

x^2+18x-19=0

(x+18)(x-1)

x=-18

x=1

Answer:

The radius of the circle is √74

Step-by-step explanation:

Radius of a circle is the distance between the centre of a circle and its circumference.

The origin of the circle (0,0) will be its centre.

The point on the edge of the circle is the point on its circumference which is (5,7).

The radius of the circle will be the distance between this two points according to definition.

R = √(x2-x1)²+(y2-y1)²

Given (x1, y1) = (0,0) and (x2, y2) = (5, 7)

x1 = 0, y1 = 0, x2 = 5, y2 = 7

Substituting into the formula we have;

R = √(5-0)²+(7-0)²

R = √5²+7²

R = √25+49

R = √74

Answer:

Step-by-step explanation:

Given that a centre has an origin (0,0) and (5,7) at the edge.

What is the radius of the circle

This is a direct question, we can apply coordinate geometry by finding the distance between two point, .

From co-ordinate geometry, the distance between two points is

d =√[(x2-x1)² + (y2-y1)²]

So, applying this

Point 1 = (x1,y1) = (0,0)

Point 2 = (x2,y2) = (5,7)

The radius of the is

r = √[(x2-x1)² + (y2-y1)²]

r = √[(5-0)² + (7-0)²]

r = √[5² + 7²]

r = √(25 + 49)

r = √74

The correct answer is D

D. √74

An arc that lies outside of a central angle is called a Major arc.

Option 'C' is correct.

The circle is a closed two dimensional figure , in which the set of all points is equidistance from the center.

Since, We know that;

An arc that lies outside of a central angle is called a major arc.

Since arc of a circle is a continuous portion of a circle.

And Central angle is the angle formed at the centre and it is an acute angle so, an arc that lies outside of a central angle will be a major arc only.

Because major arc is greater than half of the circle so, it can be formed outside of a central angle only.

Hence, An arc that lies outside of a central angle is called a Major arc.

Option 'B' is correct.

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Answer: Here we are going to use the equation y=15x2+3x+56.

x=0 in 2,000 so x=10 in 2010.  

Substitute 10 for x.

After this we have the answer: D. $1,586

Hope this helps

Answer:Write 9/20 as a percent. Use equivalent fractions: 9/20 = 45/100 = 45%.

Step-by-step explanation:

Answer:

Sample response: Volume represents the amount of space an object takes up. Surface area represents the area of the outside surface of the object. If you need to find the amount of space something takes up, or the amount to fill something, find the volume. If you want to find how much is needed to cover something, find the surface area.

Step-by-step explanation:

If they are asking for volume, they are wanting to know how much can go inside the object....If they are asking for surface area.....the are wanting to know about the outside only.

The volume is equal to the product of area and height of shape.

The total area occupied by the surfaces of an object is called its surface area.

"A volume is simply defined as the amount of space occupied by any three-dimensional solid. These solids can be a cube, a cuboid, a cone, a cylinder or a sphere."

"The total area occupied by the surfaces of an object is called its surface area."

Different shapes have different volumes. In 3d geometry, we have studied the various shapes and solids such as cube, cuboid, cylinder, cone, etc., that are defined in three dimensions. For all these shapes, we are going to learn to find the volume.

The formula to calculate the volume of a solid in a three-dimensional space, is to find the product of dimensions. Basically, the volume is equal to the product of area and height of shape.

Volume =  Base Area x Height

For shapes having flat surfaces such as cube and cuboid, it is easy to find the volume. But for curved shapes like cone, cylinder and sphere, we have to consider the dimensions of its curved surface as well, such as radius or diameter.

In geometry, different 3D shapes have different surface areas which can be easily calculated using the formulas that we will be learning in this article. The surface area is classified into two categories:

1. Lateral surface area or Curved surface area

2. Total surface area

There is a different surface area formula for every geometrical shape, but the idea behind all is to get the total area occupied by all the faces of the objects.

The total surface area considers all the faces of the 3D shape including the flat surfaces and the curved surfaces, while the lateral surface area is calculated to find the area occupied by the curved surface of the shape. It does not include the area of the bases. A sphere is one 3D figure which has only one round surface with no flat base.

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Answer:

616 cm²

Step-by-step explanation:

To find the area of a circle you use the formula A = π · r²

So we know that the diameter is 28 cm, to find the radius we would divide this in half, because d = 2r, giving us 14. Now we can do 14² which is 196, and then times that by pi or in this case 22/7.

196 × (22/7) = 616

Answer:

616 square centimeters

Step-by-step explanation:

Diameter of circle = 28 centimeters

π = 22/7

Area of a circle, A = π [tex]\frac{D^{2} }{4}[/tex]

A =  [tex]\frac{22}{7}[/tex] * [tex]\frac{28^{2} }{4}[/tex]

A =  [tex]\frac{22}{7^{1} }[/tex] * [tex]\frac{(4 * 7)^{2} }{4}[/tex]

A =  [tex]\frac{22}{7^{1} }[/tex] *  [tex]\frac{4^{2} *7^{2} }{4}[/tex]

A = 22 * 28

A = 616 square centimeters

Answer:

1/25

Step-by-step explanation:

The probability is 1/25 because 10 red marbles plus 15 green marbles = 25 marbles in total. Therefore, the probability  of choosing a red marble without looking is 1/25.

Answer:

The probability that Yuki will pull out a red marble is [tex]\( \frac{2}{5} \)[/tex].

Explanation:

To find the probability of selecting a red marble, you divide the number of red marbles by the total number of marbles in the bag.

Given:

- Number of red marbles = 10

- Number of green marbles = 15

Total number of marbles = Number of red marbles + Number of green marbles

Total number of marbles = 10 + 15 = 25

Now, to find the probability of selecting a red marble:

[tex]\[ \text{Probability} = \frac{\text{Number of red marbles}}{\text{Total number of marbles}} \][/tex]

[tex]\[ \text{Probability} = \frac{10}{25} \][/tex]

[tex]\[ \text{Probability} = \frac{2}{5} \][/tex]

Answer:b>-1 and 66/67

Step-by-step explanation:

First you add like terms. So 96+43. Your problem should now look like this -67+6=139. Now subtract 139 from 6 and you will be left with this -67b<133. Now divide 133 by -67 and you get -1.985074627. Or -1 66/67 as a fraction. You have to flip the sign because you divided by a negative number. You answer should look like this b>-1 and 66/67.

Answer:

The length of the third side could be anywhere between [tex]7\; \rm in[/tex] and [tex]17\; \rm in[/tex], excluding the two endpoints.

Step-by-step explanation:

Let [tex]x[/tex] represent the length (in inches) of the third side.

In a triangle, the sum of the lengths of any two sides should be greater than the length of the third side. The lengths of the three sides of this triangle are:

The sum of the lengths of the first two sides is [tex]5 + 12 = 17\; \rm in[/tex]. This sum should be greater than (not equal to) the length of the third side: [tex]x\; \rm in[/tex]. That gives the first inequality:

Similarly, the sum of the lengths of the first and the third sides is [tex](5 + x)\; \rm in[/tex]. This sum should be greater than (not equal to) the length of the second side: [tex]12\; \rm in[/tex]. That gives the second inequality:

The sum of the lengths of the second and the third sides is [tex](12 + x)\; \rm in[/tex]. This sum should be greater than (not equal to) the length of the first side: [tex]5\; \rm in[/tex]. That gives the third inequality:

Solve the three inequalities for the range of [tex]x[/tex], the length of the third side:

[tex]\displaystyle \left\lbrace\begin{aligned}& 5 + 12 > x \\ & 5 + x > 12 \\ & 12 + x > 5\end{aligned}\right.[/tex].

The first inequality simplifies to [tex]x < 17[/tex]. The second inequalities gives [tex]x > 7[/tex], while the third gives [tex]x > -7[/tex].

Refer to the diagram attached. [tex]7 < x < 17[/tex] is the region that satisfies all three inequalities. Therefore, the length of the third side should be between [tex]7[/tex] and [tex]17[/tex], exclusive.

Answer:

2 pairs

Step-by-step explanation:

Answer:

Step-by-step explanation:

d (The pyramid has 2 pairs of congruent faces.)

Answer:

Radius- 9cm

Diameter-18 cm

Step-by-step explanation:

The radius is ALWAYS half of the diameter.

Answer:

Radius:9cm

Diameter :18 cm

Step-by-step explanation:

Answer:

X=-1/4

Step-by-step explanation:

X-2(x+3)=4(2x+3)-(x+4)

Open the bracket first

X-2x-6=8x+12-x-4

Collect like terms

X-2x+x-8x=12-6-4

-x+x-8x=6-4

-8x=2

Divide both sides by-8

X=-2/8

Divide both by 2

X=-1/4

Answer:

C. [1,4,6,3,7]

Step-by-step explanation:

Answer:

The answer is C

Final answer:

To solve the system of equations y = 4x and 3x + 2y = 55, you can substitute 4x for y in the second equation, simplify to find x = 5, and then calculate y = 20.

Explanation:

To solve for x and y using the equations y = 4x and 3x + 2y = 55, you can use substitution or elimination. Let's use substitution since we already have y expressed in terms of x.

Substitute 4x for y in the second equation: 3x + 2(4x) = 55.

Simplify and solve for x: 3x + 8x = 55 becomes 11x = 55, so x = 5.

Substitute x back into the first equation to find y: y = 4(5), so y = 20.

Therefore, the solution to the system of equations is x = 5 and y = 20.

Answer:

18

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

We can set up a proportion because the "expected" amount should correspond to the sample amount.

[tex]\frac{24}{80} =\frac{x}{720}[/tex], where x is the number of dinner entrees that are fish

Cross-multiply:

80 * x = 24 * 720

80x = 17280

Divide both sides by 80:

x = 17280/80 = 216

The answer is D.

Hope this helps!

Answer:

D. 216

Step-by-step explanation:

Entrees : fish

80 : 24

720 : X

X/720 = 24/80

X = 720 × 24/80

X = 216

Answer:

5.) Answer choice C (44%)

7.) Answer choice A (47%)

Step-by-step explanation:

to find the percentage, we find the total of all women and divide the total of women from candidate A from the total amount of women voters.

1346+1704 = 3050

1346/3050 ≈ 44%

The same procedure applies for question 7 except we add EVERYONE up. We divide the amount of men for candidate B from all of the voters.

1704+1488+1346+1871 = 6409

1488/6409 ≈ 23%

Voila! There's your answer  .ω.

Hope you understand this now!

Answer:

D

Step-by-step explanation:

If you take a look at everything up to the step before last, you can follow the train of thought and see that Tobin did everything correctly. However, when he had 3x=15 and multiplied both sides by 3, he got a ridiculous answer. If he had instead divided both sides by 3, he would have found that x=5, and not 135. Therefore, the correct answer is D.

Answer:

D. Tobin did not make a mistake

Step-by-step explanation:

i just did it on ed

Answer:146

Step-by-step explanation:

The measure of the arc DEB is equivalent to 146°.

An angle is formed when two rays have the same end point. The common end point is called vertex.

Given is to find the measure of arc DEB.

We can write the measure of angle DBE as half the measure of arc BCD. Mathematically, we can write -

∠DBE = 1/2(arc BCD)

107 = 1/2(arc BCD)

arc BCD = 107 x 2

arc BCD = 214°

Now, we can write -

m(arc DEB) + m(arc BCD) = 360°

m(arc DEB) = 360 - 214

m(arc DEB) = 146°

Therefore, the measure of the arc DEB is equivalent to 146°.

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Answer:

180

^

120 Green, 60 Red

^                     ^

Bruised Green = 30, Not Bruised Green = 90/Bruised Red = 12, Not Bruised Red = 48

Step-by-step explanation:

There is a beginning amount of 180 which goes in the first bubble. Then, you divide by 3 because 1/3 is red. 180 divided by 3 is 60, so there are 60 red apples. And 180 minus 60 is 120 and that's the amount of green. Then, 1/5 of the red apples are bruised so 60 divided by 5 is 12, so 12 are bruised and sincce 60 - 12 = 48, 48 are not. And then 1/4 of the green are bruised so 120 divided by 4 is 30, which means 30 are bruised. Lastly 120 minus 30 = 90, so 90 are not bruised that are green.