MATHEMATICS HIGH SCHOOL

Which one of the following mathematical statements is true?A. 28 + 0 = 0
B. 0 ÷ 28 = 0
C. 28 – 0 = 0
D. 28 ÷ 0 = 0

Answers

Answer 1
Answer: B. 0 ÷ 28 = 0

Is the mathematical statement that is true.

Rule of ZERO. Zero(0) can be a numerator with non-zero denominator. Its overall value is equal to 0.

Rule of ZERO. A fraction with a denominator of ZERO is not a legal fraction. This is because the overall value of a number divided by zero is undefined.

28 + 0 = 28 not 0.
28 - 0 = 28 not 0.
28 ÷ 0 = ERROR! not 0. value is undefined

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Classify the triangle by its sides and then by its angle

Answers

Answer:

equilateral right triangle

Step-by-step explanation:

7^2+7^2=c^2

49+49=c^2

c^2=98

c=10

Therefore, equilateral right triangle

Can anyone help me find the answer to

2x+9x+4

Answers

so to factor

to factor this in ax^2+bx+c form where a is greater than 1,
b=z+y
ac=xy
solve

so a=2
b=9
c=4

9=y+z
c times a=4 times 2=8
what 2 numbers add up to 9 and mulitply to get 8?
factor 8
8=
1 times8
2 times 4
if we add them up we get
1+8=9 check
2+4=6

the numbers are 1 and 8
split up the middle term
2x^2+1x+8x+4
group
(2x^2+1x)+(8x+4)
factor out/reverse distribute
(x)(2x+1)+(4)(2x+1)
reverse distribute useing distributive proerty
ab+ac=a(b+c)
(x+4)(2x+1)

the factored form is (x+4)(2x+1)

Use benchmarks to estimate the sum, difference, or product.3. 15/16 1/6
a. 3
b. 1 1/2
c. 2
d. 1

Answers

my opinion is d/1 okay and i did not understand

A plane flies over city A and reaches city B, 115 miles away, in 15 minutes. Find the speed of the plane in miles per hour assuming the plane flew at a constant speed.A. 300 mph
B. 460 mph
C. 600 mph
D. 680 mph

Answers

the answer is 460 because 115÷ 15×60 = 460

Find an explicit rule for the nth term of a geometric sequence where the second and fifth terms are -6 and 162, respectively.

Answers

Hello,

a(2)=-6
a(3)=-6*r
a(4)=-6*r²
a(5)=-6*r^3=162
a(5)/a(2)=r^3=162/(-6)=-27==>r=-3

a(1)=-6/(-3)=2
a(2)=2*(-3)
a(3)=2*(-3)²
a(4)=2*(-3)^3
a(5)=2*(-3)^4

a(n)=2*(-3)^(n-1)




Answer

Answer:

an = 2 • (-3)^n - 1

Step-by-step explanation:

I have taken the test and this is the correct option :)

| 5x - 1 | < 1
___ < x < 2/5

Answers

Hello,

1) if 5x-1>0 then  |5x-1|=5x-1
==> |5x-1|<1==>5x-1<1==>5x<2==>x<2/5

2) if 5x-1<0 then |5x-1|=-5x+1
==>|5x-1|<1==>-5x+1<1==>-5x<0==>x>0

0<x<2/5
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