Mathematics High School

## Answers

**Answer 1**

Answer:

m= -3

Step-by-step explanation:

You should do m = -1 - 2 x 1 - 0 which equals m = -3

## Related Questions

Are the expressions -18 - 1/2(50z + 60) - 35z and 6(-12 - 10z + 4) both equivalent to 12(-5z - 4)? Show your work.

### Answers

**Answer:**

**Yes! :)**

**Step-by-step explanation:**

**-18 - 25z - 30 - 35z = -48 - 60z = 12(-4 - 5z)**

**-72 - 60z + 24 = -48 - 60z = 12(-4 - 5z)**

Fill in the table (image provided)

### Answers

**Answer:**

year 2 = 136

year 3 = 182

year 6 = 228

year 7 = 251

Answer & Explanation:

So the alien is 90 cm at birth. Your just going to add 23 for each year to the birth number of 90, because a year = 23 cm of growth

At 2 years it will be

90 + 23 + 23 = 136

At 4 years it will be

90 + 23 + 23 + 23 + 23 = 182

At 6 years it will be

23 x 6 = 138, 138 + 90 = 228

At 7 years it will be

23 x 7 = 161, 161 + 90 = 251

please help ASAP What is the surface area of the square pyramid represented by the net?

### Answers

**Answer:**

144

**Step-by-step explanation:**

all of the triangles add up to 108m^2 and the middle adds up to 36m^2 so add them together and you get the surface area.

**Answer:**

144 m²

**Step-by-step explanation:**

From the diagram, we can see that the shape is made up of a square and 4 triangles. (We know it's a square as its width and length are equal).

First, find the area of the square.

Area of a square = width x length = 6 x 6 = 36 m²

All the triangles are the same, so we need to find the area of one of the triangles and multiply it by 4.

Area of a triangle = 1/2 x base x height = 1/2 x 6 x 9 = 27 m²

So the total area of all 4 triangles = 4 x 27 = 108 m²

Therefore the total surface area = 36 + 108 = 144 m²

One baseball costs $2.99. A bin of 12 baseballs cost $34.99. Is it cheaper

per baseball to buy 1 or 12?

### Answers

It’s cheaper to buy 12 . If you bought 1 baseball 12 times it would be $35.88

It’s cheaper to buy 12 baseballs because if you buy 1 you would have to double up, if you bought it 12x it would b 35$ and some change.

If the focus is (2, 5) and the directrix is y=3, find the equation of the parabola.

### Answers

**Answer:**

(x-2)^{2}=4(y-4)

Answer:

y = 1/4 (x - 2)^2 + 4

Step-by-step explanation:

The equation of a parabola is

y = a(x - h)^2 + k

This is for a parabola that opens in the y direction (up or down) If you make a sketch of the focus and directrix you'll be able to see what direction it opens. See image. The parabola kind of curls around the focus and opens away from the directrix. Also, this sketch can help you find the vertex which we need, which is actually a point on the curve and which is exactly half way between the focus and directrix.

The vertex is (h, k) for this problem it is (2, 4). h is 2 and k is 4. You will fill in the 2 and 4 in the parabola formula. Then the last thing you need is the a infront of the paranthesis on the right side of the equation.

Use the formula

a = 1/4p (the p is in the denominator).

p is the distance from the vertex to the focus, so for this question, it is 1. see image.

a = 1/4(1)

a = 1/4

Fill it in the parabola formula.

y = a (x - h)^2 + k

y = 1/4 (x - 2)^2 + 4

1

• Write an expression that is equivalent to

4X+1+

3

4

2 1

- -2.

3 29

1

3

2

1

х

2

=

4x +1+1x

xt

?

4

3

### Answers

½and⅓ the process is shown in the following picture

David spent 25% of his money at the department store. If he had $27.36 left, how much money did he start with

### Answers

**Answer:**

$36.48

**Step-by-step explanation:**

David spent 25% of his money and left with:

100 - 25 = 75%

This is same as $27.36

Find initial amount, the 100%:

27.36/75*100 = 36.48

it took mama thuli 1,45 hrs to bake her delicious cake.how many minutes did she spend baking?

### Answers

how many hours? 1 hour 45 minutes of 145 hours lol?

which food sources scarcity caused the yellowstone national park beaver population to decrease

### Answers

**Answer:**

elk out-competed beavers for food — particularly willow and aspen trees

**Step-by-step explanation:**

What is 340x450=?

answer plz

### Answers

**Answer:**

153000

**Step-by-step explanation:**

340x450=153000

Answer:

153k

Step by step explanation:

The perimeter of a rectangular garden is 50 feet. The width is 4

times the length. What is the length and width of the garden?

### Answers

W = 4 l

(L+4l )2= 50

5l*2 = 50

10l = 50

L = 5

W = 20

Orlando's class needs 1,000 tree leaves for a project.

They collected 497 leaves last week and 409 leaves this week.

What is the best estimate for the number of leaves they have collected so far?

### Answers

**Answer:**

The total is 906 but. The estimated would be 900. Or 910.

make x the subject of the formula

a=bx+c

### Answers

**Answer:**

(a-c)/b = x

**Step-by-step explanation:**

a = bx + c

subtract 'c' from each side to get:

(a-c) = bx

divide each side by 'b' to get:

(a-c)/b = x

What is the range of the function {(0, 15), (4, 6), (6, 4), (8, 0)}?

### Answers

The **range **of a** function** is the set of output values of the **function**

The **range **of the** function** is: {15, 6, 4, 0}

How to determine the range

The **function **is defined as:

(x,y) = {(0, 15), (4, 6), (6, 4), (8, 0)}

The **range** is the y-values.

So, we have:

y = {15, 6, 4, 0}

Hence, the **range **of the** function** is: {15, 6, 4, 0}

Read more about **range** at:

https://brainly.com/question/1770447

can someone please help !

### Answers

The first option is the correct answer

As x -> ○○ , f(x) -> ○○ , As x -> -2 , f(x) -> 4

PLSSS HURRY A student translated the phrase below into an algebraic expression, and then evaluated if for y = 24. Is the student's work correct?

The difference of a number and 6; evaluate when y = 24:

The expression is y

6

. For y = 24, y

6

= 24

6

= 4.

No, the student wrote a division expression instead of a subtraction expression.

No, the student simplified the fraction incorrectly.

No, the student made an error when substituting.

Yes, the student’s work is correct.

### Answers

A. No, the student wrote a division expression instead of a subtraction expression.

Hope this helps :)

What is the y-intercept of y = -32?

A) (-3,-3)

B) (-3,0)

C) (0,-3)

D) (0,0)

### Answers

D I hope this helps

If Jonny buys 6 shirts and every shirt is 20% off but the normal price is $20.00. how much will Jonny pay in total?

### Answers

**Answer:**

Okay I will do this in two orders cause I do not understand if the shirt cost 20 dollars each or all together

**Step-by-step explanation:**

**1**. if each shirt cost 20 bucks 2x6=12 add the 0 = $120

20% off 120 = $96

**2**. if in all the shirt cost 20 bucks

20% off 20 = $16 bucks

**Hope This Helped!**

The population of a city has been increasing by 2% annually. The sign shown is from the year 2000.

Write an exponential growth function that represents the population t years after 2000.

What will the population be in 2020? Round your answer to the nearest thousand. The population will be about:

### Answers

We have that the *exponential growth function* and **population** be in 2020 is mathematically given as

**y=325000e^{0.002t}****y=469925**

From the question we are told

The population of a **city** has been **increasing** by 2% annually. The sign shown is from the year 2000.Write an **exponential** growth *function* that **represents** the population t **years** after 2000.What will the **population** be in 2020? **Round** your *answer* to the nearest **thousand**. The popu*l*ation will be about:

**Population**

a)

Generally the equation for the **standard form** of exponential *function*is mathematically given as

**y=325000e^{0.002t}**

b)

With T =20

Hence

y=325000e^{0.002(20)}

**y=469925**

For more on** ****Population** visit

https://brainly.com/question/905400?referrer=searchResults

Solve for X and Y substitution￼

-5X +6y=12

Y=5/6x+2

### Answers

**Answer****:**

Infinitely many solutions.

**Explanation****:**

**Given:**

-5X +6y=12 .........eq 1

Y=5/6x+2 ..........eq 2

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

-5X +6y=12

6y = 12 + 5x .......**eq 3**

( Y=5/6x+2 ) * 6

6Y = 5X + 12 ...........**eq 4**

**Using equation 3 and 4:**

6y = 12 + 5x

6Y = 5X + 12

...............................

They are equal and **cancels out**. Therefore **Infinitely many solutions.**

List the terms in the trinomial below: 3 + 7a - 2x

### Answers

**Answer:**

Terms=3, 7a, 2x

**Step-by-step explanation:**

A scale drawing of an automobile has a scale of 1 inch = 12 1/2 foot. The actual width of the car is 5 feet. What is the width on the scale drawing?

### Answers

**Answer:**

The width of the scale drawing would be 16 inches

1. Find the area of the parallelogram. (1 point)

67 ft

60 ft

52ft

A 3,302 ft 2

B 3,484 ft 2

C 3,752 ft 2

D 4,020 ft 2

### Answers

to find the area of a parallelogram multiply the base times the height. in this case since no picture was provided, one cannot know which is the base and which is the height

What is the slope of the line? y - 4= -7(x-6) Choose 1 answer: 1 А. 7 4. B 7 --7 2 3

### Answers

**Step-by-step explanation:**

the slope is always the factor of x.

in slope intercept form, as well as here in point slope form.

the important thing is that the y term is just brought to a simple positive y form (and not cy with c is different than 1).

and then, what you see on the other side as factor is x is the slope.

here : -7

the other numbers in the equating are irrelevant for the slope. they determine the "offset" of the line from (0, 0).

No work needed answer fast

### Answers

**Answer:**

i believe 13

your welcome

Let f(x) = 3x² + 1 and g(x) = x +4.

Find (f +g)(x)

and (f -g)(x).

### Answers

**Answer:**

(f + g)(x) = **3x² + x + 5**

(f - g)(x) = **3x² - x - 3**

**Step-by-step explanation:**

(f + g)(x) → f(x) + g(x) → 3x² + 1 + x + 4

Combine like terms and you get: **3x² + x + 5**

(f - g)(x) → f(x) - g(x) → 3x² + 1 - (x + 4)

Remember to distribute the neg. everything in the parentheses. Combine like terms and you get: **3x² - x - 3**

I will give brainliest if you answer this The ratio of quarts of paint thinner to color when making a special paint is 2 to 6. Which of the tables represents this same ratio?

A

B

C

D

### Answers

**Answer:**

A?

**Step-by-step explanation:**

Which set of numbers are equivalent?

es )

A)

10

50%, 0.5,

20

B)

65

65%, 0.65,

1000

C)

7

70%, 0.7,

100

D)

95

95%, 0.95,

1000

### Answers

**Answer:**

uhhhhhh

**Step-by-step explanation: uh**

Pilar bought 2/3 pound of turkey. She ate 1/4 of the turkey that she bought for lunch.

How many pounds of turkey did she eat?

Enter your answer in the box as a fraction in simplest form.

(20 points)

### Answers

first change the fractions so they have common denominators.

2/3 * 4/4 = 8/12

1/4 * 3/3 = 3/12

now we can figure out how much she ate

8/12-3/12=5/12

So, Pilar ate 5/12 pounds of turkey.

**Answer:**

1/6

**Step-by-step explanation:**

confirmed!

A furnace was originally priced at $907.07 but went on sale for 33% off. If Omar bought the furnace and paid 9% sales tax, how much did he pay in total?

### Answers

**Answer:**

662.433221

**Step-by-step explanation:**

907.07 × 1.09 × 0.67

**Answer:**

662.44

**Step-by-step explanation:**

it says it is the correct answer on ixl