Mathematics High School

guys i NEED HELP NOW! ansewr this ( 2 1/4) x (-8)

Answers

Answer 1

Answer:

-18

Step-by-step explanation:

If you turn 2 1/4 into an improper fraction, you get 9/4

Turn -8 into an improper fraction, you get -8/1

Equation: 9/4*-8/1

You can cross cancel the 4 and the 8 so your equation becomes 9/1*-2/1 which becomes 9*-2

Multiply and you get -18 :)

Related Questions

Question 3 of 10
Solve the formula A = r2 for r.
O A. T = VA
А
B. r =
0
C. r = VA - 7
O
D. r = VAT
SUBMIT

Answers

the answer should be b

Find the square root of 144.
A. 72
B. –12
C. 12
D. 1 over 12

Answers

Answer:

Step-by-step explanation:

12 x 12 is 144.

I hope I helped

Answer:

Step-by-step explanation:

Square root is a number multiplied by the same number to get an answer

144/12 is 12 and

12 x 12 = 144

Which of the following is an input value based on this set of ordered pairs? (3,4), (-5, 7), (8, -1) answers 4 ,-1 ,8 ,7

Answers

8 is the only input value listed in the answers.

If anyone doesn’t mind, can someone help with this one

Answers

Answer:

x = 20 degrees, angle ABC = 98 degrees

Step-by-step explanation:

The two inner angles sum up to 180 degrees. This is a general rule when you have two parallel lines and another line intersecting through both lines.

So angles ABC and DCB sum up to 180.

4x + 18 + 2x + 42 = 180

6x + 60 = 180

6x = 120

x = 20 degrees

Plugging this back in angle ABC,

4(20) + 18 = 98 degrees

Create a system of equations for this situation. A store sells bracelets for $10 and rings for $15. On Monday they sold 30 items. When they counted the money they made $450. Do not solve, just create the system.

Answers

Answer:

10x + 15y = 450

Step-by-step explanation:

A store sells bracelets for $10 and rings for $15.

Sold 30 items.

They counted the money they made $450.

x = bracelets

y = rings

10x + 15y = 450

Find the solution to the system of equations.

Answers

Answer:

[tex](-2,-5)[/tex]

Step-by-step explanation:

[tex]\begin{bmatrix}y=-4x-3\\ y=-2x+1\end{bmatrix}[/tex]

[tex]\mathrm{Substitute\:}y=-2x+1[/tex]

[tex]\begin{bmatrix}-2x+1=-4x-3\end{bmatrix}[/tex]

Isolate x for -2+1=-4x-3: x=-2

[tex]\mathrm{For\:}y=-2x+1[/tex]

[tex]\mathrm{Substitute\:}x=-2[/tex]

[tex]y=-2\left(-2\right)+1[/tex]

[tex]-2(-2)+1=5[/tex][tex]4+1=5[/tex]

[tex]y=5[/tex]

PLEASE HELPP!!!!

Which number is an irrational number?

Answers

Answer:

D. [tex]\sqrt[3]{16}[/tex]

Step-by-step explanation:

What is an irrational number?

❖ An irrational number is a number that cannot be written in fraction

form. They're also non-terminating and non-repeating decimals.

Determing Irrational or Rational

The square root of 100 is 10 because 10 × 10 = 100. 10 can be written as a fraction of 10/1, so it's rational.

1/8 is already in fraction form, so it's rational.

-2.2675 is a terminating decimal, so it's rational.

The cube root of 16 is irrational because there is no exact number that multiplies itself 3x to get 16. Additionally, when you put the cube root of 16 in a calculator, you will get a mess of decimal digits, thus forming a non-repeating and non-terminating decimal.

What is the total area of the three triangles? 12. 5 square units 13 square units 13. 5 square units 14 square units.

Answers

Answer:

53 square units

Step-by-step explanation:

12.5+13+13.5+14

¿Cuál es la suma de los ángulos interiores del polígono mostrado a continuación?

Answers

The sum of interior angles of the given polygon is 900 degrees

How to calculate the sum of an interior angle of a polygon?

The formula used to calculate the sum of an interior angle of a polygon is expressed as:

Sum of interior angles = ( n − 2 ) × 180 ∘

n is the number of sides

The number of sides of the given polygon is 7, hence;

Sum of interior angles = (7 − 2 ) × 180 ∘

Sum of interior angles = 5 × 180 ∘

Sum of interior angles = 900 degrees

Hence the sum of interior angles of the given polygon is 900 degrees

Learn more on sum of interior angles here: https://brainly.com/question/20606675

What is 10 to the power of 12?

Answers

Answer:

1000000000000

Step-by-step explanation:

if you =have 10^12 power you multiply 10*10 12 times

so to work it out you would do:

10*10*10*10*10*10*10*10*10*10*10*10=1000000000000

and since your bored to death here's a cool pic

NEED HELP ASAP!!!!
Determine the solution for x? - 3x - 28 >= 0
A. [-7, 4]
B. [-4, 7]
C. (-infiniti, -4] or [7,infiniti)
D. (infiniti,-7] or [4,infiniti]

Answers

Answer:

I believe its c or a

Step-by-step explanation:

just guess those are my suggestions

A recipe requires 34 cups of milk. Paula is making 12 of the recipe. How many cups of milk will Paula use?

Answers

Answer: Paula will use 408 cups of milk

You buy 7 gallons of gasoline at p dollars per gallon and pay $26.88. Write an equation to find the price of one gallon of gasoline. Then find the price of one gallon of gasoline.

Answers

7p=26.88

divide 7 on both sides
p=$3.84

A broken pottery shard found at an archaeological dig has a curved edge. Find the diameter of the original plate. (Use the fact that the diameter of PR is a
perpendicular bisector of chord AB.)

Answers

Answer:

The answer to this question is 18 1/ 2 degrees

Step-by-step explanation:

What is the inverse of the trigonometric function in the graph? y = sinx y = cosx y = arcsinx y = arccosx

Answers

The inverse of the trigonometric function given in the graph is;

Option D; y = arc cosx

The graph is missing and so i have attached it.

To get the inverse of the trigonometric function, we need to first know what the trigonometric function is.

From the graph, we see that;

when x = 0, y = 1

when x = π, y = -1

when x = π/2, y = 0

Now, the equivalent of radian angle π when converted to degrees is; π = 180°

Thus; π/2 rad = 90°

Thus;

when x = 0°, y = 1

when x = 180°, y = -1

when x = 90°, y = 0

Now, let us look at the value of angle 0° for each trigonometric function sin, cos and tan.

sin 0 = 0

tan 0 = 0

cos 0 = 1

Let us try angle 90°

sin 90 = 1

cos 90 = 0

tan 90 = ∞

The only trigonometric function that corresponds with the coordinates of the graph is y = cos x.

The inverse of cos x is cos⁻¹x or arc cos x.

Read more at; https://brainly.com/question/9196410

Answer:

Step-by-step explanation:

Helpp meeee question 2 pleaseee !!

Answers

Answer:

C is Cassandra's age, it is being multiplied by 2(Doubling). G is replaced by 9 and you will find the mother's age

Step-by-step explanation:

c hope it helps have a good day

On a 750 mile road trip Thelma drove 110 miles more than Louise. How far did each person drive?

Answers

Answer:

Thelma drove 430 miles, Louise drove 320 miles

Step-by-step explanation:

[tex]Distance = 750\\T + L = 750\\T = L + 110\\(L + 110) + L = 750\\2L + 110 = 750\\2L = 640\\L = 320\\T = 430[/tex]

Thelma 430 Louise 320

What is the value of q/ 6+(12−r), when q = 4 and r = 38?

A 7/ 12
B 14/ 19
C 19/ 24
D 21/ 25

Answers

Answer:

The answer to the value of q is 19/24

The diameter of a circle is 2 centimeters. What is the circle's area?

Answers

Answer:

3.14 cm²

Step-by-step explanation:

Given :-

Diameter = 2 cm

To Find :-

Area

Formula Required :-

Area (circle) = πr²

Solving :-

Area = 3.14 x 1 x 1

= 3.14 x 1

= 3.14 cm²

Solution :-

3.14 cm²

Solution:

We know that:

Diameter of circle = 2 cmRadius = Diameter/2Area of circle = πr²

Finding the radius.

Radius = Diameter/2=> Radius = 2/2=> Radius = 1 cm

Finding the area.

Area of circle = πr²=> Area of circle = 3.14 x 1²=> Area of circle = 3.14 x 1 = 3.14 cm²

Vulkan jumped 7/8 yard and then 2, 7/8 feet. How many feet did he jump in all?

help pls bro

Answers

The total length that Vulkan jumped on both occasions is 3 1/2 feet.

What are fractions?

A fraction is a non integer that is made up of a numerator and a denominator. The numerator is the number above and the denominator is the number below.

How many feet did he jump in all?

First convert yard to feet: 1 yard = 3 feet

7/8 x 3 = 21/8 = 2 5/8

Now add the fractions together

2 5/8 + 2 7/8

2 (5 + 7) / 8 = 2 12/8 = 3 1/2 feet

To learn more about fractions, please check: https://brainly.com/question/915789

Marlene rides her bike at a rate of 16 miles per hour. The time in hours that she rides is represented by the variable t, and the distance she rides is represented by the variable d. This relationship is modeled with distance d as a function of time t.

Which statements are true of the scenario? Select two answers..

Answers

Answer:

The equation t = d + 16 represents the scenario

Step-by-step explanation:

The independent variable, the input, is the variable d, representing distance. The distance traveled depends on the amount of time Marlene rides her bike. The initial value of the scenario is 16 miles per hour. so The equation t = d + 16 represents the scenario

Hope it helps!!!brainliest pls!!!

The half-life of a radioactive kind of antimony is 4 days. How much will be left after 12 days, if you start with 7,600 grams of it?

Answers

Answer:

950

Step-by-step explanation:

A=P*(1/2)^(t/h)

itss in mathswch so it needs to be right marking brainliest!

Answers

Answer:

yea ur right

Step-by-step explanation:

yea ur right yea ur right yea ur right

how would i find the area of this

Answers

Answer:

Your answer is 30 sq. yd

Step-by-step explanation:

To find the area of the rectangle:

l x w

6 x 4 = 24

To find area of triangle:

1/2(bh)

to find the base of the triangle you subtract 6 from 9:

9 - 6 = 3

So 1/2 (3 x 4)

1/2 (3 x 4)

1/2 (12)

12 / 2 = 6

Area of whole figure:

You will now add 6 + 24 = 30

So you have a rectangle and a triangle, first you’re are going to get the measurements of the rectangle which is 6,6,4,4 because every opposite side is equal, so the formula of the area of a rectangle is LW which is 6x4=24. And then get the area of the triangle, the sides of the triangle will be 3 as the base and 4 as the height, the formula of the area of a triangle is HB/2 which is 4x3/2=6. Last step you’ll add both of the areas together and get the total of the whole figure which is 24+6=30
30 Will be your final answer

8. An automobile traveled 320 miles in 6 hours. What is its average speed?

Answers

Answer:

The automobile's average speed is 53.33 mph.

Step-by-step explanation:

Since average speed equals total distance traveled divided by the time of the travel we have:

d = 320 mi the distance traveled

t = 6 hr the time of the travel

v = average speed

v = d/t

v = 320/6

v = 53.33 mph

Answer:

about 53 miles per hour

Step-by-step explanation:

320/6 is 53.33 repeated

you divide 320/6 because you need to know how many miles you going in an hour

hope that helps!

what is pi to the 30th digit (decimla place)

Answers

Answer:

3.141592653589793238462643383279

Step-by-step explanation:

Answer:

Step-by-step explanation:

the 30th decimal of pi is 9

what is the answer

Answers

Answer:

dilation

Step-by-step explanation:

i passed the class

Find the length of the side of a rhombus whose diagonals are 6cm and 8cm.

Answers

Answer:

Step-by-step explanation:

Use the rhombus area formula to find it.

A = [tex]\frac{diagonal 1 * diagonal 2}{2}[/tex]

A = (6*8) / 2 = ...

Darrien has 60 actors in his theater class. He concludes that 8 out of 15 actors have previous acting
experience. What is the sample size?
answer choices
60
8
15
53

Answers

The sample size of the actors is the number of actors Darrien selected

The sample size is 15

How to determine the sample size?

From the question, we understand that:

Darrien has 60 actors

This represents the population of the experiment.

Then he selected 15 of the actors, and 8 of them have previous acting experience.

The 15 actors he selected represents the sample of the experiment

Hence, the sample size is 15

Answers

Step byCombine any like terms on each side of the equation: x-terms with x-terms and constants with constants. Arrange the terms in the same order, usually x-term before constants. If all of the terms in the two expressions are identical, then the two expressions are equivalent.

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