Mathematics High School

## Answers

**Answer 1**

**Answer:False. **

**Step-by-step explanation:Any two right triangles, similar or not, must have one pair of congruent angles, the right angles. If one pair of acute angles angles is congruent, then by AA Similarity, the triangles are similar.**

## Related Questions

Someone help me please ill give brainly

Combine Like terms

### Answers

**Answer:**

-2x^2 + 19x + 5

**Step-by-step explanation:**

(9x + 5) + (-2x^2 + 10x)

Step 1: remove the parenthesis

9x + 5 - 2x^2 + 10x

Step 2: collect like terms

(9x and 10x are like terms)

19x + 5 - 2x^2

Step 3: rearrange the terms

-2x^2 + 19x + 5

Write the equation in standard form.

y - 2 = -(x +4)

### Answers

**Answer:**

x + y = - 2

**Step-by-step explanation:**

The equation of a line in standard form is

Ax + By = C ( A is a positive integer and B, C are integers )

Given

y - 2 = - (x + 4) ← distribute by - 1

y - 2 = - x - 4 ( add x to both sides )

x + y - 2 = - 4 ( add 2 to both sides )

x + y = - 2 ← in standard form

A student is standing 20 feet away from the base of a tree. He looks to the top of the tree at a 50 degree angle of elevation. His eyes are 5 feet above the ground. Using cos 50= .64, what is the height of the tree to the nearest foot?

### Answers

Answer:

23.84 feet

Step-by-step explanation:

Solving this question above, we using Trigonometric function tangent = Opposite/Adjacent

Opposite side + h = Height of the tree

We are told that:

A student is standing 20 feet away from the base of a tree. He looks to the top of the tree at a 50 degree angle of elevation. His eyes are 5 feet above the ground.

20 feet = Adjacent side = Distance form the tree

tan 50 = (h+5)/20

Cross Multiply

h + 5 = 20 × tan50

h = 20tan50 - 5

h= 18.835071852

h =18.84

Therefore the height of the tree is calculated as:

18.84+5 feet

=23.84 feet

**Answer:**

24 feet

**Step-by-step explanation:**

**EZ**

Which one is greater 0.05 or 0.050

### Answers

They are both equal

0.05 = 0.050

Hope this helps

**Answer:**

equal

**Step-by-step explanation:**

0.05 = 0.050

A ball bounces from a height of 8 feet. The ball bounces to 80% of its previous height with each bounce. How high (to the nearest tenth of a foot) does the ball bounce on the fifth bounce?

### Answers

Answer:

2.6 feet

Step-by-step explanation:

At each point, there is a loss of 20% (since it flies to 80%)

a) 8 - 20% of 8

= 8-1.6 = 6.4

b) 6.4 - 20% of 6.4

= 5.12

c) 5.12 - 20% of 5.12

4.096

d) 4.096 - 20% of 4.096

3.2768

e) 3.2768 - 20% of 3.2768

= 2.62144 feet

B is the midpoint of segment AC, What is the length of AC?

А

B

3X + 4

5X-6

### Answers

24 times 6 with a little bit of 4

A plane travels north for 2.5 h at a velocity of 100 km/h. Another plane travels east for 4 hours at a velocity of 62.5 km/h. Which plane traveled the longer distance? Show all calculations

### Answers

**Answer:**

The two planes have traveled the **same distance.**

**Step-by-step explanation:**

Given that:

Velocity of first plane traveling north = 100 km/h

Time taken by the plane = 2.5 hours

Velocity of second plane traveling north = 62.5 km/h

Time taken by the plane = 4 hours

**To find:**

Which plane traveled longer distance?

**Solution:**

First of all, let us have a look at the formula for finding the distance using velocity and time.

Formula is:

[tex]Distance = Velocity \times Time[/tex]

Distance traveled by first plane:

[tex]Distance_1 = 100\times 2.5\\\Rightarrow Distance_1 = 250 \ km[/tex]

Distance traveled by second plane:

[tex]Distance_2 = 62.5\times 4\\\Rightarrow Distance_2 = 250 \ km[/tex]

Here, we can clearly see that:

[tex]Distance _1 = Distance _2[/tex]

Therefore, the two planes have traveled the * same distance*.

Help with number 23 plz. Plz...

### Answers

**Answer:**

D

**Step-by-step explanation:**

D, it has (x). so its easy to plug in x e.g. 3(4y+6)-2y=3.

Hope this helps plz hit the crown :D

If 3/4 and 12/x are equlvalent, what is the value of x?

### Answers

**Answer:**

[tex] \frac{3}{4} = \frac{12}{x} \\ 3x = (12 \times 4) \\ x = \frac{(12 \times 4)}{3} \\ x = (4 \times 4) \\ x = 16[/tex]

**Answer:**

x = 16

**Step-by-step explanation:**

so 3/4 = 12/x

you Can multiply 3/4 by 4 to get

12/16 = 12 / x

you can assume x = 16 since the numerators are the same

If you were to use the substitution method to solve the following system, choose the new

equation after the expression equivalent to x from the second equation is substituted into the

first equation.

2x – 3y = -29

x + 4y = 13 (6 points)

1) 2(4y + 13) – 3y = -29

2) 2(-4y + 13) – 3y = -29

3) 2x - 3(4y + 13) = -29

O4) 2x - 36-4y + 13) = -29

### Answers

**Answer:**

Option 2

**Step-by-step explanation:**

We will use the substitution method, as the question asks for. The second equation (where x or y is isolated on one side) will be susbstituted as the x or y in the first equation.

2x-3y=-29

x+4y=13

let's isolate x onto one side in the second equation.

Subtract 4y from both sides

x=-4y+13

now we can substitute the expression as x in the first equation

2(-4y+13)-3y=-29

it's the 2nd option

Hope this helps!

If -3x = 57, what is the value of x?

### Answers

**Answer:**

-19

**Step-by-step explanation:**

-3x=57

Divide by -3

-3x/-3=57/-3

x=57/-3

x=-19

Hope this helps plz hit the crown :D

subtract: 5/8 - 1/4

A. 1/4

B. 3/8

C. 1/2

D. 3/4

### Answers

Answer:

B

Step-by-step explanation:

I checked it and it is right hope this helps!

**Answer:**

**Step-by-step explanation:**

Determine whether each survey question is biased or unbiased. If biased explain your reasoning. How many cars does your Family own?

### Answers

**Answer:**

Biased

**Step-by-step explanation:**

I thing this question is a little bias because it could imply that the more cars your family owns, the richer you are. There could be some other instances where this is not the case, but overall this could be taken as bias.

Triangle PQR with vertices P(3, −6), Q(6, −9), and R(−15, 3) is dilated by a scale factor of 3 to obtain triangle P′Q′R′. Which statement best describes triangle P′Q′R′? It is similar to triangle PQR and has coordinates P′(1, −2), Q′(2, −3), and R′(−5, 1). It is congruent to triangle PQR and has coordinates P′(1, −2), Q′(2, −3), and R′(−5, 1). It is similar to triangle PQR and has coordinates P′(9, −18), Q′(18, −27), and R′(−45, 9). It is congruent to triangle PQR and has coordinates P′(9, −18), Q′(18, −27), and R′(−45, 9).

### Answers

**Answer:**

It is similar to triangle PQR and has coordinates P′(9, −18), Q′(18, −27), and R′(−45, 9).

**Step-by-step explanation:**

Express 25/125 in simplest form

PSA "25/125" ARE FRACTIONS

### Answers

[tex] \frac{25}{125} = \frac{5}{25} = \frac{1}{5} [/tex]

Hey there!

Usually SOME people reduce their fraction by finding their Greatest Common Multiple (GCF) ... So we will try that with you to make it easier for you to solve!

“25/125”

• Factors for 25: 1, 5, 25

• Factors of 125: 1, 5, 25, 125

The BIGGEST number you see REPEATED is: 25

GCF: 25 ☑️

• Now let’s solve for your answer, shall we?

• DIVIDE both your NUMERATOR (TOP number) & DENOMINATOR (BOTTOM number) from our GCF ( 25 )

25 ÷ 25 / 125 ÷ 25

• We know ↴

25 ÷ 25 = 1 (SOLVING your NUMERATOR)

125 ÷ 25 = 5 (SOLVING your DENOMINATOR)

• Thus your ANSWER should be: 1/5 ☑️

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

By what number must be 566 be divided so as to give a quotient 15 and reminder 11?

### Answers

**Step-by-step explanation:**

566 - 11 = 555

555 / 15 = 37.

The number is 37.

**Answer:**

[tex]\boxed{\pink{\sf \leadsto The \ required \ number \ is \ 37 . }}[/tex]

**Step-by-step explanation:**

We need to find the number By what number must be 566 be divided so as to give a quotient 15 and reminder 11.

So , let us take the number be x .

Now , we know that ,

[tex]\boxed{\red{\bf Dividend = Quotient\times Divisor + Remainder }}[/tex]

Here , 566 will be Dividend , 11 is remainder and 15 quotient . x will be the Divisor .

[tex]\implies Dividend = Quotient\times Divisor + Remainder \\\\\implies 566 = 15 \times x + 11 \\\\\implies 566 = 15x + 11 \\\\\implies 15x = 566 - 11 \\\\\implies 15x = 555 \\\\\implies x =\dfrac{555}{15}\\\\\underline{\boxed{\orange{ \tt \implies x = 37}}}[/tex]

**Hence ****the**** required**** ****number**** ****is**** ****37**** ****.**

pls help it's probability and permutations and combination on khan academy

### Answers

**Step-by-step explanation:**

Probability = (5C3 / 7C3) * 100%

= (10 / 35) * 100%

= 28.57%.

4(3x + 2) =16x + 7 -4x + 1

### Answers

**Answer:**

All real numbers are solutions.

**Step-by-step explanation:**

Step 1: Simplify both sides of the equation.

4(3x+2)=16x+7−4x+1

(4)(3x)+(4)(2)=16x+7+−4x+1(Distribute)

12x+8=16x+7+−4x+1

12x+8=(16x+−4x)+(7+1)(Combine Like Terms)

12x+8=12x+8

12x+8=12x+8

Step 2: Subtract 12x from both sides.

12x+8−12x=12x+8−12x

8=8

Step 3: Subtract 8 from both sides.

8−8=8−8

0=0

**Answer:**

x= 0

**Step-by-step explanation:**

The picture attached has your answer!

Which letters Shown below on the number line also have their opposites labeled? (A- A and D) (B- B and C) (C- A B and C) (D- B C and D)

### Answers

try number 4 I thinks its that one or number 1

SOMEONE PLZ HELP

Luke was out of cereal for breakfast. He walked to the grocery store to buy his favorite, Honey Nut Cheerios. While looking at the cereal, he noticed all the different box sizes and different prices. A giant "Family Size" box contained 14.7 oz and cost $5.99. A small, individual size contained 1.5 oz and cost $1.89. He wanted to get the most "bang for his buck." Which choice is the better buy? In other words, which choice is cheaper per ounce? Which one should he buy and why?

### Answers

**Answer:**

das tough luke 2r892093427-4t70534688-3579049730957

**Step-by-step explanation:**

853047017=+3r408703471q8udiow

On a scavenger hunt, you find 19 out of 20 objects. Write "19 out of 20" as a fraction, a decimal, and a percent

### Answers

Fraction: 19/20

Decimal: 0.95

Percent: 95%

Which phrase matches the equation -3r + 5 = 28?

The sum of three and a number times negative five gives twenty-eight.

The sum of negative five plus three times a number equals twenty-eight.

The product of negative three and a number plus five equals twenty-eight.

The product of three times a number equals twenty-eight.

### Answers

**Answer:**

Option "3" is correct

**Step-by-step explanation:**

**Given:**

equation -3r + 5 = 28

**Explanation:**

**Assume;**

Given number = r

The product of negative three and a number

⇒ -3(r)

Plus five equals twenty-eight

⇒ -3r + 5 = 28

So,

**Option "3" is correct .**

During a sale, a dress is sold at discount of 15%. The original price of the dress is $ 60. What is the price of the dress after discount?

### Answers

15/100=0.15

60*0.15=9

60-9=$52 after discount

-10 F is colder than -4 degrees?

### Answers

**Answer: yes, it is a smaller temperature, which means that is "colder"**

**Step-by-step explanation:**

I guess that the question is:

Is -10°F colder than - 4°C?

Ok, when we have a temperature T in Celcius, the equation to transform this quantity to the Fahrenheit scale is:

T' = (T*9/5) + 32°

Replacing T by the temperature in celcius, we get:

T' = (-4°*9/5) + 32° = 24.8°F

This means that -4°C is equivalent to 24.8°F

And -10°F is a smaller value than 24.8°F (which mean that is colder)

This implies that -10°F is colder than -4°C

Then the statement is true.

plz help the more i type and what not the more my wrist hurts so plz help ASAP SO I CAN REST IT

### Answers

**Answer:**

You got the answer already but whatever

50.41 and 51.84

**Step-by-step explanation:**

Like you already have the answer up there.

I think it’s 7.14 and 7.15

what i’d fraction 2/3 + 3/8

### Answers

**Answer:**

[tex] \huge \frac{2}{3} + \frac{3}{8} = \frac{(16 + 9)}{24} = \frac{25}{24} [/tex]

25/24 is the right answer.

**Answer:**

first find a common denominator

**Step-by-step explanation:**

[tex] \frac{2}{3} + \frac{3}{8} \\ \frac{16 + 9}{24} \\ \\ \frac{25}{24} [/tex]

helpigiverailiestifuaser

### Answers

**Answer:**

35 books

**Step-by-step explanation:**

40*3=120

120-85=35

If m

then m ABC = [ ? ]

ILL MARK WHATEVER ANSWER RIGHT BRAINLEST

### Answers

**Answer:**

it is 120

**Step-by-step explanation:**

Explain it too and what specific polynomial subject.

### Answers

**Answer:**

C

**Step-by-step explanation:**

Expand the factors and compare the coefficients of like terms.

Given

(mx + 2)(3x - 5) ← expand using FOIL

= 3mx² - 5mx + 6x - 10

Compare to 12x² - 14x - 10

For the 2 to be equal, then the coefficients of like terms must be equal.

Compare coefficients of x² terms

3m = 12 ( divide both sides by 3 )

m = 4 → C

Select all statements that correctly interpret the relationship shown on the scatter plot.plz help!!!

### Answers

**Answer:**

The data shows a linear association between the variables.

The data shows a negative association between the variables.