Mathematics High School

## Answers

**Answer 1**

**Answer: daddy 123 456**

**Step-by-step explanation:**

696969696

## Related Questions

The cost, c, for catering a luncheon using Right On Catering is c=120+12m+10v where m is the number of meat lunches and v the number of vegetarian lunches being served at the luncheon.

a.) Solve the equation for v.

b.) If the cost for the luncheon was $558 and 24 attendees ordered the meat lunches, how many vegetarian lunches were served?

### Answers

Answer:

if the cost for the luncheon was $558

and 24 attendees ordered the meat lunches , how many vegetarian lunches were

Step-by-step explanation:

Answer:

Step-by-step explanation:

7:40pm------What is 89 minutes more? (What time will it be?)

### Answers

The **current time **is 08 : 09 pm

How to determine the **current time**?

The given parameters are

Time = 7 : 40 pm

Minutes added = 89 minutes

The **current time **is calculated as

Current time = Time + Minutes added

So, we have

Current time = 7 : 40 pm + 89 minutes

Evaluate the sum

Current time = 7 : 129 pm

Rewrite properly as

Current time = 08 : 09 pm

Hence, the **current time **is 08 : 09 pm

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A-18. Evaluate the expressions below for the given values.

a. 4d +3 if d=-1

b. x² + y2 if x = 7 and y = 5

### Answers

**Answer:**

- 1 and 74

**Step-by-step explanation:**

a

substitute d = - 1 into the expression

4d + 3

= 4(- 1) + 3

= - 4 + 3

= - 1

b

substitute x = 7 and y = 5 into the expression

x² + y²

= 7² + 5²

= 49 + 25

= 74

the sum of two numbers is 80 .One of the numbers is 4 times the other number.Find the two numbers.

### Answers

The two numbers are 16 and 64.

Solve the equation. First estimate using the perfect square closest to 78 . Then use a calculator. Estimate. n2=78 (the 2 is meaning squared)

### Answers

**n = 8.8**

- - - - - - - - - - - - - - - - - - - - - - - -

Work below!

- - - - - - - - - - - - - - - - - - - - - - - -

My estimate: 8.8 x 8.8 = 77.44

Calculated answer: 8.8 x 8.8 = 77.44

Why are they the same? Because 78 is simply not a perfect square. Therefore 77.44 must be rounded up to 78.

- - - - - - - - - - - - - - - - - - - - - - - -

Good luck! :)

~pinetreee

Determine the correct METRIC length of the co*ckroach in this image.

A 1.0 in

B 2.5 cm

C 7.5 cm

D 3.0 in

### Answers

**Answer:**

B

**Step-by-step explanation:**

7.5cm - 5cm = 2.5cm

So it is B :)

please help me find this answer

PLEASE IM BEGGING

### Answers

**Answer: The length of the side is 14 inches**

**Step-by-step explanation: Using the formula V=(b^2xh):3**

Input the numbers we are given: 196=(b^2x3):3 now calculate 196=(14^2x3):3 side b=14 inches

on friday, you drove 145 miles to stay at your grandmother's house. on Sunday, you returned home and calculated the the road trip travel time was 5 hours. What was your average speed?

### Answers

**Answer:**

29 mph

**Step-by-step explanation:**

divide 145 miles by 5 hours to calculate your miles per hour. 145 / 5 = 29!

**Answer: 58 mph**

**Step-by-step explanation: Since its a round trip multiply 145 by 2.**

**290**

**Divide 290/5= 58**

**58 miles per hour**

How do I solve this step by step

### Answers

I’m pretty sure this is correct

For three angles A, B, and C, the measure of Bis twice the measure of A, the measure of C is three times the measure of A, and the sum of the angle measures is 180. What is the measure of each angle?

### Answers

**Answer: **A=30 degrees, B=60 degrees, C=90 degrees

**Step-by-step explanation:**

B=2A

C=3A

A+B+C=180

A+2A+3A=180

6A=180

**A=30 degrees**

B=2A

B=2(30)

**B=60 degrees**

C=3(30)

**C=90 degrees**

**Answer:**

Angle A = 30°

Angle B = 60°

Angle C = 90°

**Step-by-step explanation:**

Let **x** represent the measure of A. Using this information, we can figure out the measure of B and C in **terms** of x.

Since B is **twice** the measure of A, then it would be 2x. Similarly, C is **three times** the measure of A, thus it would b 3x.

We also know that the **sum of the angles **is **180** degrees. We can use this information to set up an **equation**.

Setting up an Equation

We know that:

Angle A + Angle B + Angle C = 180

**Substituting** the values we gave for A, B, and C, we find:

x + 2x + 3x = 180

Now, we **solve** the equation for x.

Solving the Equation

Start by combining **like terms**:

6x = 180

Now, divide **both sides** by 6:

x = 30

Since we know the value of x, we can find the values of the angles.

Finding the Values of Each Angle

A = x = **30°**

B = 2x = **60°**

C = 3x = **90°**

State which metric unit you would probably use to measure each item.

mass of a book

### Answers

The **gram** and** kilogram** are two units used to measure mass in the metric system .

We need to find the metric unit to find mass of a book.

What is Mass?

The resistance that a body of matter offers to a change in its **speed **or position upon the application of a **force.**

1 kilogram of a substance is equal to 1000 grams and 1 gram is equal to 0.001kg. Therefore, to convert the mass of a book **weighing** 12,321g into kg, we will multiply it by 0.001kg. The book's mass in kg is 12.321 kg.

Therefore mass is measured by **kilogram** or **grams**.

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PLEASE HELP DONT JUST TAKE MY POINTS I DONT KNOW THIS PLEASSE ASAP

explain your reasoning in mathematical terms. Be specific. Draw a picture if you need to.

Question:

Evelyn has some paracord with a total length of 5-½ meters. She needs to cut the cord into 12 equal portions. What is the length of each piece written as a fraction? Is this value rational or irrational; why?

### Answers

**Answer:11/24**

**Step-by-step explanation:**

5 1/2 divided by 12 equals 11/24

The school newspaper wants to find the opinions of students on availability of campus parking. They send a staff member to stand outside a busy dorm and interview students as they walk in or out of the building. What type of sampling process did the paper use?.

### Answers

**Answer: single random sample**

**Step-by-step explanation:**

P = 2 ( l + w ) explain how to work this out please

### Answers

**Answer:**

2l + 2w

**Step-by-step explanation:**

using the distributive property

a(b + c) = ab + ac

2(l + w)

= 2l + 2w

BRAINLIEST ANSWER IF ANSWERED PROPERLY WITH NO SPAM

### Answers

**Answer:**

m = e/c^2

**Step-by-step explanation:**

e = mc^2

m = e/c^2

i got this question on a test

1+7

a.blank

b.rabbit

c.blank

d.chicken

### Answers

**Answer:**

d

**Step-by-step explanation:**

it's d because chicken has 7 letters and than +d which is 8 (the test might be hard )

If f(x) = -x³, g(x) = 3x² - 1, and h(x) = 2x + 5, what is the degree of [f o go h](x)?

2356

### Answers

The **degree** of the polynomial formed is 6.

The **degree** of a polynomial is the highest **degree** of the variables present with non-zero coefficients.

For example the **polynomial** has three 7x³y²+9xy+4 terms. The first term has a **degree** of 5 (the sum of the powers 2 and 3), the second term has a **degree** of 1, and the last term has a degree of 0. Therefore, the polynomial has a degree of 5, which is the highest **degree** of any term.

Now the given functions are:

[tex]f(x)=x^3[/tex] ,g(x)=3x²-1 and h(x)=2x

Now we have to find (f ° g° h)(x). Let us first find (g°h)(x).

(g°h)(x) is equal to g[h(x)]

=g[2x+5]

=3(2x+5)²-1

=3(4x²+20x+25)-1

=12x²+60x+74

Now we find (f ° g° h)(x)

(f ° g° h)(x)=f[g(2x+5)]

f[g(2x+5)]=f(12x²+60x+74)

f(12x²+60x+74)=(12x²+60x+74)³

Now we have to simplify the expression:

(12x²+60x+74)³

=[tex]1728x^6+25920x^5+161568x^4+535680x^3+996336x^2+985680x+405224[/tex]

The largest degree of the variable x in the polynomial is 6.

hence the degree of [f o go h](x) is 6.

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A hair dryer is rated at 1850 watts. How much does it cost to run this dryer for 10 minutes if the cost of

electricity is $0.15 per kWh?

(Note: Time must be in HOURS. Divide minutes by 60 to get hours.)

Round to the nearest cent.

### Answers

The **cost **for using the hair dryer for 10 minutes is $0.05

** How much does it cost to run this dryer for 10 minutes?**

We know that the hair is **rated **at 1850 watts, meaning that it uses 1850 watts per hour of usage.

We know that 10min = (10/60) hours = 1/6 hours.

And we can rewrite:

1850 watts = 1.850 kW

Then the **wattage **used in these 10 minutes is:

1.850 kW*(1/6 hours) = 0.31 kWh

And the **cost **is $0.15 per kWh, then the **cost **here is:

C = $0.15*0.31 = $0.05

The **cost **for using the hair dryer for 10 minutes is $0.05

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please help! i have PE in a bit!

### Answers

**Answer:**

the answer is D (-2 + 4)

**Step-by-step explanation:**

the lower line shows -2 and the higher one shows +4

The Answer is D (-2 + 4)

evaluate the expression

### Answers

**Answer:**

16

**Step-by-step explanation:**

Step 1. Plug the numbers into the equation

Step 2. Solve using PEMDAS

[tex]\frac{6 ( 6 + 2)}{3}[/tex]

[tex]\frac{6 ( 8 )}{3}[/tex]

[tex]\frac{48}{3}[/tex]

16

**Answer:**

6(a+c)÷b

6(6+2)÷3

6×8÷3

48÷3

16 Ans

**Step-by-step explanati****o****n**** **16is the answer

At this rate how long would it take for you heart to beat 700,000 times? Express your answer in days . Now express your answer in days , hours, minutes, & seconds. (Example:2 days , 4 hours 21 minutes, 15seconds)

### Answers

The time that it would take for you **heart to beat **700,000 times is

8days 2hours 26 mints 40second.

To calculate at this **rate** of heart to beat 700,000 times we take :

It should be noted that the **heart beats** in a day = 86400 times

(24 hours = 86400 times)

Takes about **1 hour **for a heart to beat = 3600times

Takes about ** 15 mints **for a heart to beat = 900times

Takes about **60 sec **for a heart to beat = 60times

Therefore,

the **number of days** will be given as

= 700000 / 86400

= 8.10 days

= 8days 2hours 26 mints 40second.

The time that it would take for you **heart to beat** 700,000 times is

8days 2hours 26 mints 40second.

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Which is an example of a line segment? the edge of a book the corner of a box a beam of light the floor of a classroom

### Answers

(D) the floor of a classroom is a perfect example of a** line segment.**

**What do we mean by line segment?**A** line segment **is a section of a straight line that is constrained by two distinct end points and contains every peak on the line between them. The** Euclidean distance** between the **endpoints **of a line segment determines its length. A closed line segment contains both endpoints, whereas an open line segment does not; a half-open line segment contains only one endpoint. In real life, a line segment can be represented by a ruler, a pencil, or a stick. The sun's rays are an illustration of a **ray**. The sun is the origin of the sun's rays, but there is no endpoint. A line segment is a perfect example of a classroom floor.

Therefore, (D) the floor of a classroom is a perfect example of a** line segment.**

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**The correct form of the question is given below;**Which is an example of a line segment?

(A) the edge of a book

(B) the corner of a box

(C) a beam of light

(D) the floor of a classroom

Please awnser this problem and please show work!!

### Answers

**Answer:**

111/22 or 5 and 1/22

**Step-by-step explanation:**

9 and 7/22 equals 205/22

4 and 3/11 equals 47/11

multiply 47/11 times 2/2 to get common denominator

47/11 times 2/2 is 94/22

205/22 minus 94/22 is 111/22 which is also 5 and 1/22

Please help i will give brainly

### Answers

i’m pretty sure it’s A:)

a radioactive substance decays exponentially. a scientist begins with 180 milligrams of a radioactive substance. after 33 hours, 90 mg of the substance remains. how many milligrams will remain after 43 hours?

### Answers

The radioactive substance remaining after 43 hours is: 62.7273 mg by **unitary method.**

What is unitary method?

A single unit's value can be determined from the values of multiple units, and multiple units' values can be determined from the values of single units using the **unitary method.**

Now,

Given that 180 mg is present at t = 0 hours.

After t = 33 hours, substance left = 90mg

By **unitary method**, after = 1 hour, substance left = [tex]180-\frac{90}{33}=180 -\frac{30}{11}[/tex]mg

The substance left after t = 43 hours = [tex]180 - \frac{30\times43}{11}= 180 - \frac{1290}{11}=180 - 117=62.7273mg[/tex]

Hence, The radioactive substance remaining after 43 hours is: 62.7273 mg by **unitary method.**

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-4 1/3 divided by 2 1/5

### Answers

**Answer: -1.9696969696969696969696**

**Step-by-step explanation:**

**Answer:**

Exact form: -65/33

Decimal form: -1.96

Mixed number: - 1 32/33

**Step-by-step explanation:**

The coordinates of the midpoint of GH¯¯are M(8, 0) and the coordinates of one endpoint are H(−2, 9)

### Answers

Using the **midpoint **concept, the other **endpoint **of the segment is: G(18,-9).

What is the missing information?

The problem asks for the coordinates of the other endpoint, given by **point G**.

What is the midpoint concept?

The midpoint between two points is the halfway point between them, and is found using the **mean **of the coordinates.

Hence the **x-coordinate** of G is found as follows:

8 = (x - 2)/2

x - 2 = 16

x = 18.

The **y-coordinate** of G is found as follows:

0 = (y + 9)/2

y + 9 = 0

y = -9.

The other **endpoint **of the segment is: G(18,-9).

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You can find the net force F on an object

by using the formula F = ma, where m is

the mass of the object in kilograms and

a is its acceleration in meters per second

squared. What is the mass of an object

that has a net force of 65 kg m/s² and an

acceleration of 5 m/s²?

### Answers

**Answer:** m = 13 kg

**Step-by-step explanation:**

This question gives us the **formula** to use. We will plug-in the values we know and solve for the **unknown** (**mass**).

**Given**:

F = ma

** Plug-in** known values:

(65 kg m/s²) = m(5 m/s²)

**Divide **both sides of the **equation **by 5 m/s²:

*The m/s² unit cancel out, so we are left with kg.*

m = 13 kg

The mass of the object is 13 kg.

It will take at least 360 points for Kiko's team to win the math contest. The scores for Kiko's teammates were 94,82, and 87, but on of Kiko's teammates lost 2 of those points for an incomplete answer. How many points must Kiko earn her team to win the contest?

Please explain :)

### Answers

**Answer:**

**Step-by-step explanation:**

The points up to now are

94+82+87−2=261

Explanation:

Kiko must make up the difference:

360−261=99

points.

I am a multiple of 3 I am also a multiple of 4 the sum of my digits is a prime number I have 2 digits what number am I?

### Answers

**Answer:**

**t****h****e**** ****n****u****m****b****e****r**** ****1****2**

**Step-by-step explanation:**

the number 12 is a multiple of both 3 ans 4. the sum of the 2 digits in 12, is 3, which is a prime number. 12 only has 2 digits