pls solve #4. very important

Pls Solve #4. Very Important

Answers

Answer 1

Answer:

Q2ΔABC~ΔDEC

Ratios of corresponding sides are equal:

DE/AB = DC/ACDE/40 = 15/(15 +9)DE = 40*15/24DE = 25Q3ΔABD~ΔBCD

Ratios:

AD/BD = BD/DCAD*DC = BD²16*(20 - 16) = BD²64 = BD²8 = BDQ4

If ΔABC ~ ΔXYZ, the ratios below should be equal:

AC/XZ = BC/YZ10/15 = 18/242/3 = 3/4

Ratios are different so the triangles are not similar


Related Questions

Find L if A=LW​, A=55 m2​, and W=11 m.

Answers

Answer:44

Step-by-step explanation:subtract 55-11 which would equal L

Answer:

If you are multiplying L*W the answer would be 5 because w=11 ok and we don't know what L is but we know what A is and a=55 so you have to think what do we multiply 11 by to get 55 weel it's 5 so that's how we would know it's 5 IF you were multiplying. now if you just adding L+W that answer would be 44 because 55-11=44

Hope this helped:)      

PLS PLS HELP
a trapezoidal prism has a volume of 1260 cm^3. the height of the prism is 18 cm while the bases of the trapezoid are 12 cm and 8cm. Sketch the prism and find the height of the trapezoidal base

Answers

Answer:

7 cm

Step-by-step explanation:

Volume of the prism is the product of its base area and height

V = AHV = 1260 cm³H = 18 cm

Find base area:

A = 1260/18 = 70 cm²

Area of the trapezoid:

A = 1/2(b₁ + b₂)h

Substitute given values and solve for h:

70 = 1/2(12 + 8)h70 = 10hh = 70/10h = 7 cm

Find area of base

Volume/Height1260/1870cm²

Now

Height of trapezoid base be x

1/2(12+8)x=7020x=140x=7cm

the mean temperature for the first 4 days in January was - 4 degrees the mean temperature for the first 5 days in January was - 6
degrees what was the temperature on the 5th day​

Answers

Answer: The temperature on the 5th day is -14 degrees.

Step-by-step explanation:

If we have a set of N values:

{x₁, x₂, x₃, ..., xₙ}

The mean value of this set is:

M = (x₁ + x₂ + ... + xₙ)/N

Now, we know that the mean temperature for the first 4 days of January is -4°

Then if the temperatures for the first four days are {T₁, T₂, T₃, T₄}

We have:

M₄ = (T₁ + T₂ + T₃ + T₄)/4 = -4°

Where we can replace (T₁ + T₂ + T₃ + T₄) by K

Then:

K/4 = -4°

K = -4°*4 = -16°

Is the sum of the temperatures for the first four days.

Now when we consider the first 5 days, the mean is -6°, and let's define T₅ as the temperature of the fifth day, then we get:

M₅ = -6° = (T₁ + T₂ + T₃ + T₄ + T₅)/5

And we know that:

(T₁ + T₂ + T₃ + T₄) = K = -16°

We can replace that in the above equation to get:

M₅ = (-16° + T₅)/5 = -6°

Now we can solve this for T₅

(-16° + T₅) = 5*(-6°) = -30°

T₅ = -30° + 16° = -14°

T₅ = -14°

The temperature on the 5th day is -14 degrees.

Magdala is modeling 2.12÷4 how to cheeks change the place value blocks so she can make 4 equal shares

Answers

Answer and explanation:

If Magdala is trying to divide 2.12 by 4 then she would definitely need to change the place value of the dividend(2.12) and the divisor(4). In other words, both numbers need to be whole numbers.

To make 2.12 a whole number, we shift the decimal point two places to the right of the decimal point to get 212. We do same for 4 to get 400, since both numbers have to have their place values adjusted equally.

We divide 212 by 400 to get 0.53

Therefore 2.12 divided by 4= 0.53

HELP ASAP The side lengths of a triangle are 9, 12, and 18. Is this a right triangle?

A. No, because 9+12+18.

B. No, because 92 + 122 #182.

C. Yes, because 92 + 122 = 182.

D. Yes, because 92 + 122 < 182.​

Answers

Answer:

B) 9² + 12² ≠ 18²

Step-by-step explanation:

Answer:

9² + 12² ≠ 18²

Step-by-step explanation:

Find z score for the data value given. Round to two decimal places

Answers

Answer:

1.54

Step-by-step explanation:

the z-score is calculated with the formula z= ( raw score - mean) / standard deviation

z= (236 - 193) / 28

z= 43 / 28

z= 1.5357


I need a A in math can you help me with this answer

Answers

For hypotenuse it’s like this
5^2 and 12 ^2
5 times 5 is 25
12 times 12 is 24
24+ 25 is 53
So the hypotenuse 13 hope that helped

PLZ HELP ILL MARK BRAINLIEST

Answers

Answer:

35/7

13/4

Step-by-step explanation:

I hope to help you

Answer:

five and four sevenths

5 4/7

Step-by-step explanation:

make them both improper fractions, multiply straight accross, then simplify.

12/7  *  13/4

=  156/28

=  39/7

=  5 and 4/7    in mixed number form

What are the aspects of mathematics ​

Answers

Answer:

The four thinking math standards are problem solving, communication, reasoning, and connections. The content math standards are estimation, number sense, geometry and spatial sense, measurement, statistics and probability, fractions and decimals, and patterns and relationships.

Step-by-step explanation:

(G0OGLED THE ANSWER)

Does the following scenario represent independent or dependent events?

You pick a red jolly rancher candy from a jar, give it to a friend, then pick another red jolly rancher candy.

Question 2 options:

A. independent


B. dependent


C. neither


D. both

Answers

independent
Hope this helps :)
Can I have brainliest

The event is independent event in nature .

What is independent events ?

Independent events are those events whose occurrence is not dependent on any other event. For example, if we flip a coin in the air and get the outcome as Head, then again if we flip the coin but this time we get the outcome as Tail.

What is dependent events?

Two events are dependent when the outcome of the first event influences the outcome of the second event. The probability of two dependent events is the product of the probability of X and the probability of Y AFTER X occurs.

According to the question

You pick a red jolly rancher candy from a jar, give it to a friend, then pick another red jolly rancher candy.

You pick a red jolly rancher candy from a jar, give it to a friend is independent event

and the second event pick another red jolly rancher candy. is completely independent event

and both of them are not dependent on each other

So this event is independent because two events happen is not depend on each other .

Hence, The event is independent event in nature .

To know more about Independent events and dependent events here:

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Give the y-interecept
3x + y = 5
(Remember that to find the y-intercept, you need to make the x value a 0.)
(-3, 0)
(-3, 3)
(0, 5)
(5, 0)

Answers

Answer:

(0, 5)

Step-by-step explanation:

3x + y = 5

Plug x = 0

3*0 + y = 5

0 + y = 5

y = 5

y-intercept = (0, 5)

how to factor with the quadratic fourmula. n2-18n+66=0

Answers

Solve the equation using the quadratic formula
More Icon
The Quadratic formula provides the solution for
A
n
2
+
B
n
+
C
=
0
, in which A, B and C are numbers (or coefficients), as follows:


So it would be either n= -5.127 or n= 12.873

What is the height of the screen?

Answers

Answer:

2880

Step-by-step explanation:

Options are increase/decrease

Answers

I think it’s increase of 4%

⚠️I NEED HELP PLEASE⚠️

Fcator: x^2-18x+72=0
*work please*

Answers

Answer:

x = 12, 6

Step-by-step explanation:

Factor using the AC method.

Consider the form x² + bx + c. Find a pair of integers whose product is c and whose sum is b . In this case, whose product is 72 and whose sum is -18.

-12, -6

Write the factored form using these integers.

(x - 12)(x - 6) = 0

If any individual factor on the left side of the equation is equal to  0, the entire expression will be equal to 0.

x - 12 = 0, x = 12

x - 6 = 0, x = 6

i hope this helps, good luck :)

a) converts into minutes 4 hours 30 minutes​

Answers

Answer:

270 Minutes

Step-by-step explanation:

4hours = 240 Minutes

+30 minutes = 270 Minutes

Answer would be 270:) hope it helped

PLEASE HELPPPPP


DeShawn and Mike each improved their yards by planting rose bushes and geraniums. They

bought their supplies from the same store. DeShawn spent $13 on 1 rose bush and 4 geraniums.

Mike spent $56 on 10 rose bushes and 3 geraniums. Find the cost of one rose bush and the cost of one geranium.

Answers

Answer:

Cost of 1 rose bush = x = $5

Cost of 1 geraniums = y = $2

Step-by-step explanation:

DeShawn and Mike each improved their yards by planting rose bushes and geraniums. They bought their supplies from the same store.

Let us represent:

Cost of 1 rose bush = x

Cost of 1 geraniums = y

DeShawn spent $13 on 1 rose bush and 4 geraniums.

x + 4y = 13..... Equation 1

x = 13 - 4y

Mike spent $56 on 10 rose bushes and 3 geraniums.

10x + 3y = 56....... Equation 2

We substitute 13 - 4y for x in Equation 2

10(13 - 4y) + 3y = 56

130 - 40y + 3y = 56

Collect like terms

- 40y + 3y = 56 - 130

-37y = -74

y = -74/37

y = $2

Solving for x

x = 13 - 4y

x = _13 - 4 × $2

x = $13 - $8

x = $5

Therefore,

Cost of 1 rose bush = x = $5

Cost of 1 geraniums = y = $2

Tell whether (2,0) is a solution of y=7x+ 2.

Answers

Answer:

No

Step-by-step explanation:

7x2=14, 14+2=16, 16 is not 0.

I don’t think so I hope this helps

Mathematics-Session 1: No Calculator
1. Which situation could be modeled by the expression - 12 x
A.
B.
A piece of rope has a length of 12 feet. It is cut into 3-foot pieces.
A fish is swimming 12 feet below sea level. It then swims to of that depth.
A student deposits $12 into a bank account. He then deposits another of that
C.
amount.
D.
A bird decreases the height it flies by 12 yards. It then decreases the height it flies
by another ş yard.

Answers

Answer:

Think it is D I am not sure

Step-by-step explanation:

Please only show me the check how you get the check from 1 to 5

Answers

The answers and solution from 1-5 is below. Hope this helps.

find p(-1) p(1) if p(x) = X2+1​

Answers

Answer:

p(- 1) = 2 and p(1) = 2

Step-by-step explanation:

Substitute x = - 1 and x = 1 into p(x), that is

p(- 1) = (- 1)² + 1 = 1 + 1 = 2

p(1) = 1² + 1 = 1 + 1 = 2

A shop owner increases some prices by 50%.
This is the same as:

choose one
multiplying the original price by 0.5, 1.5, 2.5 or 150?

Answers

1.5 is correct answer

The another way is same as;

Multiplying by 0.5 with original price.

Here,

A shop owner increases some prices by 50%.

We have to find another method to find same condition.

What is the percentage?

A relative value indicating hundredth parts of any quantity is called the percentage.

Now,

A shop owner increases some prices by 50%.

Let the original price is x.

Then, The increase value = x * 50% = x * 50/100 = 0.5x

Hence, To find the increase value we have to multiply by 0.5 with original price.

Learn more about the percentage visit:

https://brainly.com/question/22603224

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I need help with this

Answers

Answer:13 thank me later

What is the extraneous solution of the given absolute value equation?
-2|-2x-4|=-12

Answers

9514 1404 393

Answer:

  is no extraneous solution

Step-by-step explanation:

An absolute value equation typically does not have extraneous solutions. The solutions to this one are ...

  x ∈ {-5, 1}

__

Unless there is some domain restriction, this equation has no extraneous solutions.

_____

For -2x-4 < 0

  -2(2x +4) = -12

  x +2 = 3

  x = 1 . . . . . . -2(1)-4 = -6 < 0. Not an extraneous solution

__

For -2x-4 > 0

  -2(-2x -4) = -12

  4x +8 = -12

  4x = -20

  x = -5 . . . . . . -2(-5) -4 = 6 > 0. Not an extraneous solution

He stated that the theoretical probability of rolling a 1 is greater than rolling any other number. Explain Sean’s error.

Answers

Answer:

Sean's error is that he just looked the number of times 1 occurred. The theoretical probability of rolling a 1 is found by dividing the number of desired outcomes by the total number of outcomes

Step-by-step explanation:

you have to study

Answer:

Sean's error is that he just looked the number of times 1 occurred. The theoretical probability of rolling a 1 is found by dividing the number of desired outcomes by the total number of outcomes

Step-by-step explanation:

If , then what is mto the nearest degree?

Answers

Answer:

70 degrees

Step-by-step explanation:

If cosm<A = 342/1000, we are to find the value of a

Take arccos of both sides

cosm<A = 342/1000

cosm<A = .342

arccos(cosm<A) = arccos(0.342)

m<A = arccos(0.342)

m<A = 70 degrees

Hence the measure of m<A is 70 degrees

a farmer was on his tractor and drove by some chickens and pigs in his field he counted 30 heads and 84 legs

Answers

there would be 12 pigs and 18 chickens

12 x 4 = 48
18 x 2 = 36
36 + 48 = 84

Hi! I have an math exam tomorrow and I really need you guys help.
[tex] \frac{1}{2} - \frac{2}{2} - \frac{4}{2} + ... + \frac{39}{2} + \frac{40}{2} [/tex]
please help!​

Answers

I think the answer is 37

a. How far is the spot on the beach from the parking lot?

b. How far will he have to walk from the parking lot to get to the refreshment stand?

Show work please.

Answers

The altitude of the right triangle is the geometric mean of the 2 parts of the side it separates.

a. The answer would be sqrt(18*32)=24

The question to the second question can be answered by using the Pythagorean theorem.

32^2+24^2=1600=40^2

b. The answer would be sqrt40^2=40

The beach, the parking lot and the refreshment stand are illustrations of similar triangles.

The distance between the spot and the parking lot is 24 mThe distance between the refreshment stand and the parking lot is 40 m

(a) The distance between the spot and the parking lot

Represent this distance with d.

So, the equivalent ratio is:

[tex]\mathbf{32:d = d : 18}[/tex]

Express as fractions

[tex]\mathbf{\frac {32}d = \frac{d}{ 18}}[/tex]

Cross multiply

[tex]\mathbf{d \times d = 32 \times 18}[/tex]

[tex]\mathbf{d^2 = 576}[/tex]

Take square roots

[tex]\mathbf{d = 24}[/tex]

Hence, the distance between the spot and the parking lot is 24 m

(b) The distance between the refreshment stand and the parking lot

Represent this distance with d.

Using Pythagoras theorem we have:

[tex]\mathbf{d^2 = 32^2 + 24^2}[/tex]

[tex]\mathbf{d^2 = 1600}[/tex]

Take square roots

[tex]\mathbf{d = 40}[/tex]

Hence, the distance between the refreshment stand and the parking lot is 40 m

Read more about similar triangles at:

https://brainly.com/question/14926756

What type of pattern do linear functions have

Answers

Answer:

"adds by the same unbmer every time" is prob ur best bet

Step-by-step explanation:

Answer:

add by the same number everytime

Step-by-step explanation:

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