As last time, just evaluate and explain.

Answer:

The length of DE is 5 because they are similar triangle .

Explanation:

The triangles are similar. We can use the SAS similarity theorem to prove that claim.

Because the triangles are similar, the corresponding sides form a proportion like shown below

12/8 = 9/x

12x = 8*9 ... cross multiply

12x = 72

x = 72/12

x = 6 which is why the answer is choice B

Answer:

8

Step-by-step explanation:

-3 + 8 = 5

Answer:

56

Step-by-step explanation:

because the triangle is 180 degrees

Answer:

x = 56°

Step-by-step explanation:

Hello!

All angles in a triangle add up to 180°

84 + 40 = 124

180 - 124 = 56°

If you need further explanation, let me know!

- profparis

The surface area of the cube is 64 cm².

Volume is the amount of space that is enclosed within a container.

To calculate the surface area of the cube, we use the relation below.

Formula:

Where:

From the question,

Given:

Substitute this value into equation 1

Hence, The surface area of the cube is 64 cm².

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The answer would be A.

15.40.

Step-by-step explanation:

1in : 25mi = x inches : 385mi

25x = 385 (divide both sides by 25)

x = 15.40 inches

Answer:

I think 4/10 pizza he had ate .

The amount of the pizza he ate will be 9 / 40.

Algebra is the study of graphic formulas, while logic is the interpretation among those signs.

A fraction number is a number that represents the part of the whole, where the whole can be any number. It is in the form of numerator and denominator.

There are ten pieces of pizza.

Anthony ate 1/8 of the pizza for dinner.

Then the amount of pizza left will be

⇒ 1 – 1/8

⇒ (8 – 1) / 8

⇒ 7/8

He ate 3/10 for a bedtime snack.

Then the amount of the pizza will be

⇒ 7/8 – 1/10

⇒ 31/40

The pizza has he eaten in all.

Then the amount of the pizza he ate will be

⇒ 1 – 31/40

⇒ 9 / 40

Then the amount of the pizza he ate will be 9 / 40.

More about the Algebra link is given below.

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Answer:

-n← 2 2/3

Step-by-step explanation:

first combine like terms, and then simplify

Answer:

n> [tex]-\frac{8}{3}[/tex]

Add similar elements  -5n-6n=-11

Add 8n to both sides

Simplify -3n<8

Multiply both sides by -1

Simplify 3n>-8

Divide both sides by 3

Simplify

Answer:

1 and 2 are equivalent and 3 is not equivalent because rhe numbers are are just swapped you have to pay attention to the signs.

Answer:

1 and 2 are equivalent and 3 is not equivalent

Step-by-step explanation:

The total number of questions is an illustration of proportions

The total number of questions is 200

From the question, we have:

Grade = 87%

Questions answered = 174

Represent the total questions with x.

So, the total question is calculated as:

174 = 87% * x

Make x the subject

x = 174/87%

Evaluate the quotient

x = 200

Hence, the total number of questions is 200

Read more about proportions at:

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Answer:

the answer is -1

Step-by-step explanation:

Answer:

-15 meters

Step-by-step explanation:

Elevation means the height to which something is elevated. If the object is above sea level then it is positive. If the object is below sea level it is negative.

The elevation of the surface of the ocean is, - 15 meters.

Subtraction in mathematics means that is taking something away from a group or number of objects. When you subtract, what is left in the group becomes less.

Given that;

A fish is 15 meters below the surface of the ocean.

Here, The fish is 15 meters below the surface of the ocean.

Hence, Its elevation shows in negative sign.

Thus, We get;

The elevation of the surface of the ocean = - 15 meters.

Learn more about the subtraction visit:

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Answer:

  $72,920  

Step-by-step explanation:

hope this helps

9514 1404 393

Answer:

  D, F, G

Step-by-step explanation:

Exponents of variables in a polynomial must be non-negative integers. The non-negative integers on the list are ...

  D. 0

  F. 1

  G. 2

Answer:

Yes

Step-by-step explanation:

Direct variations are of the form y=kx, where k is some constant.

Answer:

Step-by-step explanation:

Here it is given that the scale factor of two cylinders is 3:5 . And we need to find out the ratios of circumference , surface area , height , diameter , volume and radii of the cylinders .

So let us assume that ,

Formulas to be used :-

Circumference :- The base of cylinder is circle . So ,

[tex]\longrightarrow C = 2\pi r [/tex]

Surface Area :- The curved surface area is ,

[tex]\longrightarrow S.A. = 2\pi rh [/tex]

Diameter :-

[tex]\longrightarrow d = 2r [/tex]

Volume :-

[tex]\longrightarrow Volume = \pi r^2h [/tex]

Now refer to the attachment for answer .

Answer:

1. 3:5

2. 9:25

3. 3:5

4. 3:5

5. 27:125

6. 3:5

Step-by-step explanation:

just look above me ;)

Answer:

q=4(p-r)

Step-by-step explanation:

p-r=q/4

4(p-r)=q

answer: [tex]4p + r = q[/tex]

work:

[tex]p = \frac{q}{4} -r[/tex]

[tex]p + r = \frac{q}{4}[/tex]

[tex]4 *p+r=\frac{q}{4} *4[/tex]

[tex]4p + r = q[/tex]

Answer:

y = - 4x

Step-by-step explanation:

The slope-intercept form of a line is y = mx + b. In this case, m is - 4 and no b value is given.

Answer:

0.4=2/5

0.35=7/20

Step-by-step explanation:

Answer:

698.4

Step-by-step explanation:

bec we will do 720-3% which is going to give us the number exactly simple right ?

Answer: 10

Step-by-step explanation:

When given the x and y values, you plug them in and solve.

-2-3(-4)         [multiply]

-2+12            [add]

10

Now, we know that the answer is 10. 10 is not provided as an answer choice, but it is the correct the answer.

Answer: I got 10 (not negative 10) but I don’t see it up there unless you put -10 as a choice on accident.

Answer:

0.01 because depend on uncertainty

The speed of the boat will be 12.18 mph, and the angle of its direction measured from the positive x-axis will be 224.3°

First, let's define North as the positive y-axis and east as the positive x-axis.

In this coordinate axis, the angle S 60° W is equal to 210°.

Then the velocity of the boat will be:

v = (17mph*cos(210°), 17mph*sin(210°))

Now we also need to add the speed of the river, which is 6mph to the east, then the final velocity of the boat will be:

v = (17mph*cos(210°) + 6mph, 17mph*sin(210°))

v = (-8.72mph, -8.5 mph)

Then the speed of the boat will be:

|v| = √( (-8.72mph)^2 + (-8.5 mph)^2)  =12.18 mph

And the angle, measured from the positive x-axis, will be given by the arctangent of the quotient between the y-component and the x-component:

Atan(-8.5 mph/-8.72mph) = 224.3°

If you want to learn more about velocity, you can read:

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C

because if you divide 15 by 20 on a graf and find what number is closes to it

The quotient of the following expressions is given as 7.69, -9.18, 14.10, 7.69, and 8.78.

The quotient means the separation of something into different parts, sharing of something among different people, places, etc.

1.  Start fraction 9 + start root 2 and root over 4 minus start root 7 end root end fraction.

[tex]\dfrac{9 + \sqrt2}{4-\sqrt7} = 7.69[/tex]

2.  Start fraction 9 start root 7 end root + start root 14 end root over negative 3 end fraction.

[tex]\dfrac{9\sqrt7 + \sqrt{14}}{-3} = -9.18[/tex]

3.  Start fraction 36 minus 9 start root 7 end root + 4 start root 2 end root minus start root 14 end root end fraction.

[tex]36 - 9\sqrt7 + 4 \sqrt2 - \sqrt{14} = 14.10[/tex]

4.  Start fraction 36 + 9 start root 7 end root + 4 start root 2 end root + start root 14 end root over 9 end fraction.

[tex]\dfrac{36 + 9\sqrt7 + 4 \sqrt2 + \sqrt{14} }{9} = 7.69[/tex]

5.  Start fraction 79 over 9 end fraction.

[tex]\dfrac{79}{9} = 8.78[/tex]

More about the quotient link is given below.

https://brainly.com/question/369266

Answer: A) 24.25

Step-by-step explanation: Plug in 36.5 for W and solve. Isolate the J by adding 12 to both sides then divide both sides by 2 :)

Answer:

Dilation = Multiplied by 2

Step-by-step explanation:

Dilation is the process of making an image bigger. In this picture, the coordinates of the original figure(black) has been multiplied by 2 to create the blue figure.

Answer:

Mrs.Foster ,Mr.Lopez, Ms.Kelly

Step-by-step explanation:

Mr.Lopez 92.5/100x

Mrs.Foster 95/100x

Ms.Kelly 90/100x