Mathematics High School

please help 8th grade math

Answers

Answer 1

Answer:

[tex]n \geq -\frac{-29}{28}[/tex]

Step-by-step explanation:

[tex]-3(1 - 7n) \geq -32 - 8n\\-3 + 21n \geq -32 -8n\\[/tex]

+8n +8n

[tex]-3 + 28n \geq -32\\+3 +3\\28n \geq -29\\/28 /28\\n \geq \frac{-29}{28}[/tex]

Related Questions

If i have 2 snickers and my friend takes one what would I have left?
A. 2
B. 1
c. All of the above

Answers

Answer:

Step-by-step explanation:

Jeremy stands on the edge of a river and throws a rock into the water. The rock leaves his hand at a height 4 feet above the water. The rock reaches the highest point along its path when it is a horizontal distance of 28 feet from his hand and 17 feet above the water. Write a function to represent the height of the rock in terms of its distance from Jeremy’s hand.

Answers

Answer:

The height, h, of the rock as a function of the horizontal distance from Jeremy's hand is h = -13/784·(x - 28)² + 17

Step-by-step explanation:

The given parameters are;

The height of the rock above the water when it leaves Jeremy's hand = feet

The maximum height of the rock = 28 feet

The horizontal distance at maximum height = 17 feet

Therefore, the given coordinates of the maximum height = (28, 17)

The equation of a parabola in vertex form is f(x) = a(x - h)² + k

Taking the maximum point as the vertex of the parabola, we have;

(h, k) = (28, 17)

Substituting the values gives;

f(x) = a·(x - 28)² + 17

At x = 0, the height = 4, we have;

f(0) = 4 = a·(0 - 28)² + 17

4 - 17 = a×28²

-13 = 784 × a

a = -13/784

Therefore, the height of the rock, f(x) = h, as a function of the horizontal distance from Jeremy's hand is therefore;

f(x) = h = -13/784·(x - 28)² + 17

Given the following function, find f(-1), f(0), and f(5).

f(x)=x2-4

f(-1) =
f(0)=
f(5)=

Answers

Answer:

-6, -4, 6

Step-by-step explanation:

1.) f(-1)= (-1)2 - 4

= -2-4

= -6

2.) f(0)=(0)2-4

= -4

3.) f(5)= (5)2 -4

=10-4

One hundred students go to the cafeteria to
eat lunch. Six tables held the same amount of
students while an additional 10 students
stood in line. Which equation can be used to
find the number of students sitting at each
table?
A 100= 10x + 6
B 100 + 6 x= 10
C 10 x - 100 = 10
D 6x + 10 = 100

Answers

The answer is 6x+10=100

whats the answer and how

Answers

Answer: its c or 35

Step-by-step explanation: because at 10 salespeople its 40, so 9 salespeople is 35

Please help me!!! I feel sick and really want to go to bed so please help soon!! thank u!!!

Answers

Answer:

I think It is 8 as well, but not sure

Step-by-step explanation:

The value of -4 - x is positive. What must be true about x ?
NEED HELP NOW!!!!!

Answers

Answer:

x is bigger than or equal to 5.

X would have to be negative. It’s gotta be negative because the initial -4 would make any positive answer just simply negative. A negative minus a positive is negative. But if you need a negative minus a negative, the second term turns positive.

Taking all this into account, we know the answer has to be negative. Would -4 work? No because it would equal 0. So this means x is greater than it equal to -5.

x > -4

LCM of 56f³g² and 70fg³.

A. 7fg²
B. 7f³g³
C. 280f³g³
D. 280fg²

Answers

It’s most likely answer D

What is 7 3/8 + 2 1/8

Answers

Answer:

9.5

Step-by-step explanation:

9 1/2 or 9 4/8
Because both numbers have the same denominator so there is no need for extra work so:
7 + 2 = 9
3/8 + 1/8 = 4/8 or 1/2
9 + 4/8 = 9 4/8 or 9 1/2

What is an equation of the line that passes through the points(6,-6) and (-6,-8)

Answers

Answer:

y=1/6x-7

Step-by-step explanation:

Graph: +2 = 2(x + 3)
y
x
y
6
4
2
-6
-4
-2
2
4
6
-2
-4
-6
Draw

Answers

Answer: 6

-6

-4

-2

-4

-6

Draw

Step-by-step explanation:

Answer:

good job

Step-by-step explanation:

pleas help quickly !!

Answers

45, because by using pemdas, we divide and multiply first, then add to get 45

Jack runs 4 laps in 6 minutes. At that pace, how long did it take him to run half of a lap? Show your work. Write and solve a proportion for the situation.

Answers

Answer: half a lap would take 45 seconds

Step-by-step explanation:

Solve: x/5 =10 can you help me solve that

Answers

Answer:

Step-by-step explanation:

10*5=50

could u vote me brainliest plz? thx :)

Answer:

Step-by-step explanation:

x/5 time 5 = 10 times 5

x = 50

There are 240 students going on a field trip. Each school bus can hold 48 students. Complete the equation to show which operation to use and how many school buses are needed.

Answers

Answer:

240÷48=5 no of buses needed, use division

Two fitness clubs are asding new members. Fitness club A cutrently has 450 memebers and adds 15 nee memeners each month. Fitness club B currently has 400 members amd adds 25 new members each month. After how many months will fitness club A and B have the samr number of members?

Answers

Answer:

It will take 5 months for the two fitness clubs to have the same number of members

Step-by-step explanation:

Let the number of months it takes fitness club A and B to have the same number be = x

For the two clubs to have the same number in x months, that means we can set up an equation as follows

450 +15x = 400 + 25x

Grouping like terms

450 - 400 = 25x -15x

50 = 10x

x= 5

Therefore, it will take 5 months for the two fitness clubs to have the same number of members

Write the coordinate of G'after G(1, 2) was reflected over the line y=x.

Answers

Answer:

(-1,2)

Step-by-step explanation:

Answer:

(2,1)

Step-by-step explanation:

One gallon is equal to about 3.7854 liters. What is the greatest number of whole liters of water you could pour into a one-gallon container without it overflowing?

Answers

Answer:

Step-by-step explanation:

If you try 4 liters, it will overflow since 4 is greater than 3.7854.

The answer is 3 liters.

I need some help solving these

Answers

Answer:1. 4x5

2. 7xm

3. 3xa

Step-by-step explanation: length times height to get area!

Answer:

Number 1 would be 4 x 5 = area

Number 2 would be 7 x m = area

And number 3 would br 3 x a = area

The high school decided to buy new unitorms for the girls and boys' basketball teams. They plan to buy 35 uniforms with a total cost of $1,235. The store
offers discounts based on the number of items the school buys, as shown below. What will the discounted price be for the high school?

Answers

Answer:

$802.75

Step-by-step explanation:

1235x0.35=432.25

1235-432.25=802.75

73,836 divided by 84
show work pls.

Answers

Answer:

879

Step-by-step explanation:

84 |73836

1738-672=663

663-588=756

Which set of numbers are integers but not whole numbers or natural numbers?
PLEASE HURRYYYYY!!!!!

Answers

Integers, whole numbers and natural numbers are numbers without decimal points.

The set of number that are integer but not whole or natural number is:

[tex]\{-2, -3, -4\}[/tex]

As stated above that three set of numbers do not contain decimal point;

However, the difference between them is that; a negative number without a decimal point is referred to as an integer

From the given set: only [tex]\{-2, -3, -4\}[/tex] fit into the description of an integer, because

It does not have a decimal pointAnd it is negative

Answers

The Pythagorean Theorem,
a
2
+
b
2
=
c
2
,
a
2
+
b
2
=
c
2
,
can be used to find the length of any side of a right triangle. right angle has a value of 90 degrees (
90
∘
90
∘
). A right triangle is a triangle in which one angle is a right angle. The relation between the sides and angles of a right triangle is the basis for trigonometry.

The side opposite the right angle is called the hypotenuse (side
c
c
in the figure). The sides adjacent to the right angle are called legs (sides
a
a
and
b
b
). Side
a
a
may be identified as the side adjacent to angle
B
B
and opposed to (or opposite) angle
A
A
. Side
b
b
is the side adjacent to angle
A
A
and opposed to angle
B
B
.

The hypotenuse c, opposite the right angle, is the longest side. The legs are shorter and may be the same or different lengths, and are perpendicular to each other in a right triangle.

Someone invested some money at 8% and $300 more than
twice this amount at 12%. Her total annual income from
the two investments is $548. How much is invested at
each rate?
32

Answers

Answer:

$1600 at 8% and 3500 at 12%

Step-by-step explanation:

The rule of the interest is I = PRT, where

P is the amount of investment R is the rate in decimalT is the time

Assume that the amount of money is $x

∴ P = x

∵ The rate is 8%

∴ R = 8/100 = 0.08

∵ She has an annual income

∴ T = 1

→ Substitute them in the rule to find the interest amount

∴ I = x × 0.08 × 1

∴ I = 0.08x

∵ She invested $300 more than twice the previous amount

∴ P = 2x + 300

∵ The rate is 12%

∴ R = 12/100 = 0.12

∵ T = 1

→ Substitute them in the rule to find the other interest amount

∴ I = (2x + 300) × 0.12 × 1

∴ I = 0.24x + 36

∵ Her total annual income from both investments is $548

→ Add the two amount of interest and equate their sum by 548

∴ 0.08x + 0.24x + 36 = 548

→ Add the like terms in the left side

∴ 0.32x + 36 = 548

→ Subtract 36 from both sides

∴ 0.32x + 36 - 36 = 548 - 36

∴ 0.32x = 512

→ Divide both sides by 0.32

∴ x = 1600

∴ She invested $1600 at 8%

→ Substitute x by 1600 in the expression of the other amount to find it

∵ 2x + 300 = 2(1600) + 300 = 3500

∴ She invested $3500 at 12%

Which set represents the same relation as the graph below?Which set represents the same relation as the graph below?

A coordinate plane has 7 points. The points are (negative 5, 4), (negative 3, negative 2), (negative 1, negative 2), (2, 0), (3, 3), (4, 5), (6, negative 4).

StartSet (4, negative 5), (negative 2, negative 3), (Negative 2, negative 1), (0, 2), (3, 3), (5, 4), (negative 4, 6) EndSet
StartSet (negative 5, 4), (negative 3, negative 2), (negative 1, negative 2), (2, 0), (3, 3), (4, 5), (6, negative 4) EndSet
StartSet (negative 5, 4), (negative 3, negative 1), (3, 3), (4, 5), (6, negative 4) EndSet
StartSet (4, negative 5), (negative 3, 2), (negative 1, 2), (2, 0), (4, 5), (6, 4) EndSet

Answers

Answer:

B; SECOND GRAPH

Step-by-step explanation:

Took the test

The set of ordered pairs that represents the same relation as the graph given is: B. (-5, 4), (-3, -2), (-1, -2), (2, 0), (3, 3), (4, 5), (6, -4).

What is a Relation?

A relation is a relationship between the input (x-values) and output (y-values), which can be displayed on a graph on a coordinate plane on the vertical axis and the horizontal axis.

From the graph given as shown in the image attached below, the set that has same coordinate points as indicated on the graph is: B. (-5, 4), (-3, -2), (-1, -2), (2, 0), (3, 3), (4, 5), (6, -4).

Learn more about relation on:

https://brainly.com/question/1579288

#SPJ2

Hi! Could someone please answer this question I’m stuck on it please do it ASAP! id appreciate it

Answers

Answer:

198.57 cm^2

Step-by-step explanation:

If we join the 2 semi circles, we get a circle.

We can A = pi*r^2

d= 10, r = 5

Area of circle = pi*5^2 ,

= 25*pi

Since diameter= 10 vertically, it should be 10 horizontally too, but it's divided into 2 because of the 2 semi circles.

Thus, width of each semi circle is 5 cm.

Area of rectangle = l *b

Area = (22-10)*10

Area = 12*10

= 120 cm ^2

Total area = 25pi + 120

= 120 + 25(22/7)

= 120 + 78.57

= 198.57

Hope it helps :)

When you are adding in commas to separate periods, which direction do you move to place them? What is the second set of period called?

Answers

Commas customarily indicate a brief pause; they're not as final as periods Another way to determine if a comma is needed is to mentally put and between the two ... If the result still makes sense, add the comma. In the

PLEASE ! Find the slope of the line graphed.

Answers

It’s 2
Because (0,-2) (-4,0) a negative divides by a negative is a positive

Answer:

slope = -1/2

Step-by-step explanation:

From the graph, pick two points:

[tex](x_{1} , y_{1} ) (x_{2} , y_{2} )[/tex]-> (0, -2) and (-4, 0)

Slope = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1}}[/tex]

so (-2 - 0)/(0-(-4)) = -2/4 -> -1/2

please help!!!!!! im desperate!!!

Answers

Answer:

148degrees

Step-by-step explanation:

add 180 plus 32 which is 212 subtract that from 360 which is 148

What is 5-(n-4)=3(n+2)?

Answers

Answer:

-3n-6

Step-by-step explanation:

multiply each term by 3

-3(n+2)

-3n-3*2

-3n-6

Other Questions