Mathematics College

I don’t understand can someone help me please

Answers

Answer 1

Answer:

Step-by-step explanation:

In this it's going to be pretty simple.

[tex]b^{2}[/tex] is going to be -3 * -3 = 9

When you have a square you multiply the number by itself.

9 - 4 * 1 * -4

here you have to remember order of operations.

Please - Parens

Excuse - Exponents

My - Multiplication

Dear - Division

Aunt - Addition

Sally - Subtraction.

Multiplication and Division are done at the same time left to right

Addition and Subtraction are done at the same time left to right.

9 - 4 * 1 * -4

You do the multiplication first.

4*1 = 4

4 * -4 = -16

Now you have

9 - - 16

This turns into

9 + 16

your answer is 25.

Related Questions

Write an algebrale expression for the phrase "elghe more than three times a
number

Answers

x 3

Step-by-step explanation:

Solve x 2 + 2x - 1 = 0

Answers

Answer:

x=-1/2

Step-by-step explanation:

hope this helps

2x+2 (1-4X) = 88-5 (x+4)7x + 2

Answers

Answer:

x=4/7

Step-by-step explanation:

Helpppppp plssss

Consider the numbers z= 2 + 5i, w = -3- 2i, and u=-1+2i.
z+w is equal to -1+vi
w-u is equal to - 4i
u + w is equal to -4 -

Answers

Answer:

Step-by-step explanation: 4i = i4 so divide that into one half and you get 4r

Answer:

3, 2, 0

Step-by-step explanation:

just trust me

The Amar family drives 90 miles in 2 hours, as shown on the double number line below.

image 05c5e308c558498fa8ba743ccde15e1d

At this rate, how many hours will it take the family to drive 225 miles?
A.
2.5 hours
B.
5 hours
C.
6 hours

Answers

Answer:

oh nah 1.98

Step-by-step explanation:

Answer: 45

Step-by-step explanation:

divide 90 by 2

middle school math

An aquarium tank is 3 feet long 1 foot wide and 2 feet high how many gallons of water would it take to fill the tank two thirds full a cubic foot is about 7.5 gallons

Answers

Answer: i believe it'll take 6 gallons to fill up the tank two thirds full

Step-by-step explanation: 3 x 1 x 2 = 6 gallons

True or false:
There is some translation
(x, y) + (x + h, y + k) that maps a square
to a circle.
Select one:
O True
False

Answers

Answer:

true

Step-by-step explanation:

Answer:

true

Step-by-step explanation:

Determine the AMPLITUDE and the MIDLINE of the sine function below.*
1 poin
y = – 3sin(2x) - 5
a. Amplitude = -3, Midline = -5
b. Amplitude = 3, Midline 5
c. Amplitude = 3, Midline - 5
d. Amplitude = 2, Midline = – 3
O a.

Answers

Step-by-step explanation:

Amplitude of the sine function is 1.

So if its multiplied by -3, its amplitude is 3 (its always positive).

The midline of sin x is 0.

The midline of sin 2x is also 0.

The midline of -3*sin 2x is also 0.

So if you subtract this function by 5, then the new midline is -5.

State the postulate or theorem you would use to prove each pair of triangles congruent. If the triangles cannot be proved congruent, pick not possible

Answers

You would use the SSS, ASA, AAS, RHS theorems to prove two triangles to be congruent.

The triangles can be proven similar by the congruent theorem of triangles

What are Congruent Triangles?

Transformations change the size or position of shapes. Congruent shapes are identical, but may be reflected, rotated or translated. Scale factors can increase or decrease the size of a shape. Congruent Triangles simply mean the triangles that possess the same size and shape

The three sides are equal (SSS: side, side, side)

Two angles are the same and a corresponding side is the same (ASA: angle, side, angle)

Two sides are equal and the angle between the two sides is equal (SAS: side, angle, side)

A right angle, the hypotenuse and a corresponding side are equal (RHS, right angle, hypotenuse, side)

Given data ,

Let the two triangles be ABC and DEF

Now , the two triangles will be similar if

The three sides are equal

So , AB = BC = CD and

DE = EF = FD

And the two triangles are congruent if

By ASA theorem - two angles are the same and a corresponding side is the same

And ,

By SAS theorem : Two sides are equal and the angle between the two sides is equal

And ,

By RHS theorem : A right angle, the hypotenuse and a corresponding side are equal

Hence , the triangles ABC and DEF is similar ΔABC ≅ ΔDEF

To learn more about congruent triangles click :

https://brainly.com/question/26131452

#SPJ2

What is the circle the triangle and the square

Answers

Answer:

Step-by-step explanation:

○= 7

□=5

◇=4 (The triangle)

£800 is paid into a bank account that pays 3% simple interest
annually.
How much will be in the account after 1 year

Answers

Answer:

£824

Step-by-step explanation:

3% of 800 + 800

1% = ÷100

800 ÷ 100 = 8

8×3=3%=24

800 +24 =£824

Choose all the statements that are true about the graph.

Answers

Answer:

f(x) is negative when x < 9f(x) is increasing when x < 1The x-intercept is 9

Step-by-step explanation:

The function is

f(y) = (y + 2)³ + 1

The sum of eight and a number, x, is four.

Answers

Answer:

-4

Step-by-step explanation:

Help me pls pls pls

Answers

Answer:

Step-by-step explanation:

Dependent is the y-axis and independent is the x-axis. So your answer is F.

Hope this helps, thank you !!

try the first choice

Calculate the speed of a car traveling a total distance of 60 meters in 4 seconds. pls help will give brainliest

Answers

Answer:

15 meters per second

Step-by-step explanation:

60/4 = 15

Answer:

15 meters per second

Sarah read 215 pages of her book during the first week of vacation. During the second week she read62 more pages then the first week

Answers

Answer:

She read 277 pages during the second week.

Step-by-step explanation:

215 + 62.

Answer: she read 277 books

Step-by-step explanation:

You have a bag with 10 pennies, 10 quarters, and 10 dimes. You draw 2 coins without replacement. Which action, performed before the draws, increases the probability of drawing 3 quarters in a row? O removing pennies and dimes from the bag O adding dimes to the bag O adding pennies to the bag o adding pennies and dimes to the bag

Answers

Answer:

Removing pennies and dimes from the bag

Step-by-step explanation:

From the beginning, we have a 1 in 3 chance of drawing a quarter. If we were to add dimes and/or pennies to the bag, this would make us more likely to draw a dime or a penny, and less likely to draw a quarter. Proportionally, we want the most quarters in the bag to get the highest probability of drawing a quarter from the bag.

On Saturday, Luke drove 5x − 4 miles. On Sunday, he drove 3x − 3 miles. What is the difference in miles driven?
A. 2x+1
B. 2x + 7
C. 2x - 1
D. 2x - 7

PLEASE ANSWER ASAP IM TAKING THE TEST RN

Answers

5x - 3x = 2x. 4 - 3 = 1. A > 2x + 1

Which term best describes the two lines represented by the equations below?

Answers

Answer:

Option (2)

Step-by-step explanation:

Equations of the lines have bee given as,

y = [tex]\frac{4}{3}x-5[/tex]

y = [tex]\frac{4}{3}x+3[/tex]

Both the equations are in the slope intercept form. (y = mx + b)

They have same slopes but different y-intercepts.

Same slopes of the equations define the lines to be the parallel lines.

Therefore, Option (2) will be the correct option.

Can you PLEASE write a paragraph of how tragicomic functions work PLEASE!!!

Answers

They are used for making the sides of a triangle into a ratio. Sine is opposite of the angle divide by the hypotenuse, cosine is adjacent divided by the hypotenuse, and tangent is the opposite divided by the adjacent. Sine is the y-component, cosine is the x-component, and tangent is the ratio of sine/cosine or can also be considered the slope.

Solve for indicated side

Your Answer:
Question 4 options:
Answer

Answers

Answer: x=10

Step-by-step explanation:

Picture below.

Last week a gumball machine dispensed 12 purple gumballs and 48 other gumballs. What is
the experimental probability that the next gumball dispensed will be purple?
Simplify your answer and write it as a fraction or whole number
P(purple) =

Answers

Answer:

1/5

Step-by-step explanation:

12/60=1/5

Pls can anyone help il give more points plsss

Answers

Answer:

1. 25

2. 3 hours

3. from 10:00 am to 10:30 am because he went 10 miles in 30 minutes

Step-by-step explanation:

Write a condolence letter to your bosom friend who recently lost his mother.

Answers

Answer:

Hey man, I'm sorry for you loss, if there is anything that I can do like bring you ice cream or pizza or something let me know. I am here for you, and I hope you feel better soon.

There is a brick patio around a fire pit, as shown. Use 3.14 for pi.
What is the area of the fire pit?

Answers

Answer:

28.27

you just have to know the formula

Imagine you measure the length of 15 cars, and then sum that length, in order to see how big a parking lot must be. You do this in two different ways. First, you use the same bad tape measure for each car so that your measurement is always 1 cm too long, or always too short, for all of the measurements. For your second attempt, you use a different bad tape measure for each car, so there is an uncertainty of plus or minus 1cm in each measurement. What is your estimate of the total error in the sum of all the car lengths in these two cases

Answers

Answer:

± 15 cm

Step-by-step explanation:

In the first case, since the measurement is 1 cm too long or too short, the error is ± 1 cm.

In the second case, the uncertainty or error is also ± 1 cm.

Now, since there are 15 cars, and there is an error of ± 1 cm in each measurement, by the error formula the total error in the sum of both cases is 15 × ±1 cm = ± 15 cm

So, the total error in both cases is ± 15 cm.

— 2x — 6 = 3x — 21

Help me anyone

Answers

Answer:

Step-by-step explanation:

-2x+3x=-21+6

or x=-15

Answer:

x=3

Step-by-step explanation:

-2x-6=3x-21

Add 21 to both sides of the equation

-2x-6+21=3x-21+21-2x+15=3x

Add 2x to both sides of the equation

-2x+2x+15=3x+2x15=5x

Divide each side by 5 to isolate x

15÷5=5x÷53=x

Which trig ratio would you use to solve this?
O Sine
O Cosine
O Tangent
O Saskatchewan

Answers

Answer:

Cosine

Step-by-step explanation:

sine = soh=o/h

cos=cah=a/h

tangent=toa=o/a

If you look at right triangle the slanted line is the hypothese. it will always be. so thats h. the adjacent is the line connected the the angle you are looking for. and opposite is the line thats away from the angle.

Compare -3 and 9. Which of the following is true?
O A. 1-31 > 191 and -3 < 9
B. 1-31 < 19 and -3<9
C. 1-31 = 19 and -3 < 9
D. 1-31 > 191 and -3>9
Please I need help

Answers

Answer:

b :)

Step-by-step explanation:

If you simplify it you get:

|-3|<|9|

3 < 9

true

and -3 < 9

true

what is a linear equation that is perpendicular to y=5

Answers

any equation where x = a number e.g x = 5

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