MATHEMATICS HIGH SCHOOL

Write a subtraction problem with a difference of -2, where both numbers are negative.

Answers

Answer 1

Answer:

Answer:

a lot of possible answers

Step-by-step explanation:

think of two negative numbers with a difference of 2

let's say -5 and -3

-5 - -3 = -2

-10 and -8

-10 - -8 = -2

-1000 and -998

-1000 - -998 = -2

you got the pattern? :)

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(3x²y³)(-5xy^{4}z)When multiplying the variables, do you multiply the x by the x next to the y^{4}z, and the y with the y^{4}? I asked my teacher this question for a similar problem and he said not to. When I asked my dad for help with this problem, he said that you do and the answer is -15x^{3}y^{7}z. Which method is correct?

Answers

remember
x^m=x times itself m times

REMEMBER THAT MULCTIPLICATION IS COMMUTATIVE
a(bc)=(ab)c

so basically
(abc)(3ac)=a*b*c*3*a*c=a*a*c*c*b*3=3a^2bc^2
group and regroup and move around

so in your problem
(3x^2y^3)(-5xy^4z)=
(3)(x^2)(y^3)(-5)(x)(y^4)(z)=
(3)(-5)(x^2)(x)(y^3)(y^4)(z)=
(-15)(x^3)(y^7)(z)=
-15x^3y^7z

An object travels 8 miles in 20 min at a constant speed. What is the objects speed in miles per hour? A. 32
B. 28
C. 24
D. 20

Answers

20x3 = 60 mins/ one hour
8x3 =24
24mph

Evaluate e^4 to one decimal place.

Answers

Answer:

The $e^(4)$ to one decimal is 54.6

Step-by-step explanation:

we need to calculate $e^(4)$ to one decimal.

Since, $e^(x)=1+(1)/(x!)+(x^(2))/(2!)+(x^(3))/(3!)+......$ ....(1)

To calculate $e^(4)$ , put x=4 in equation (1)

$e^(4)=1+(1)/(4!)+(4^(2))/(2!)+(4^(3))/(3!)+......$

$e^(4)=1+(1)/(24)+(16)/(2)+(64)/(6)+......$

simplify the above expression

$e^(4)=1+(1)/(24)+(16)/(2)+(64)/(6)+(256)/(24)+(1024)/(120)......$

calculate with the scientific calulator

< 0.1 =54.6

Hence, $e^(4)$ to one decimal is 54.6

The answer is going to be the general form for e^x = 1 + x/(1!) + + x^2/(2!) + x^3/(3!) +.....,. till infinity so : e^4 = 1 + 4/1 + 16/ 2 + 64/6 + 256/24 + 1024/ 120 + 4096/720 + 16384/5040 +...till the fraction is<0.1 = 54.6

I hope this helps!

Find a solution to the inequality x > 7.

Answers

you must isolate the x in order you must divide both of each sides of the inequality by the other variable or coefficients.

Here, x > 7 itself is a solution. It represents x must be less than the 7

Hope this helps!

How do I find BCD? Please help

Answers

Hi,
BCD and ECF are opposite angles and so are equal. If they are equal, then their equations are equal, and if their equations are equal, you can set the equations against each other to find x. See below, and hope this helps!

(10x - 20)° = (8x + 4)°

This is basic algebra. (I'm taking off the degree sign for now to make it simpler, but be sure to add it to your answer at the end.) Group like terms.

10x - 20 = 8x + 4
2x = -16
x = -8

Once you've found "x", plug "x" into the equation for BCD and solve. I'll get you started:

(10 × -8) - 20

all you need to do is add the angles up and you have your answer

I need three 6th grade multiple-choice math questions.

No links!

Answers

Answer:

1. Divide This Fraction 9/3 / 2/5

A. 6 1/2

B. 4 1/3

C. 2 1/2

D. 6 3/4

2. Max had purchased 25 apples for $15. How much did each apple cost?

A. $0.80

B. $1

C. $0.60

D. $0.40

C. What is the square root of 81?

A. 9

B. 27

C. 18

D. 36

Step-by-step explanation:

1. A is the correct answer. 9/3 / 2/5, reciprocal is the one you use to solve it. 5/2 x 9/3

45/6 = 6 3/6

6 1/2

2. You need to divide $15/25 as a number, to find the unit rate, giving you $0.60. 6 is the correct answer.

3. A is the correct answer. 9 x 9 equals 81, so therefore 9 is the correct answer.

Other Questions

Number # 11 please !!!

a rabbit can run short distances at a rate of 35 miles per hour. A fox can run short distances at a rate of 21 miles per half hour. Which animal is faster, and by how much?

Factor completely:7r^2− 64r + 64

Ms. Leverenz is doing an art project with her class. She has a 3 foot piece of ribbon. If she gives each student an eighth of a foot of ribbon, will she have enough for her class of 22 students?