MATHEMATICS HIGH SCHOOL

What is the smiplest ratio for 75cm:1m:250 mm​

Answers

Answer 1
Answer:

Answer:

You need to convert all the units to one unit

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Which expression does the graphic represent? 8 positive tiles. 1 tile is crossed out. 7 minus 1 7 minus (negative 1) 8 minus 1 8 minus (negative 1) HELP I NEED AN ANSWER ASAP

Answers

Answer:

B

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

                       

i just know

What is the check for this equation?
4(1 - x) + 3x = -2(x + 1)

Answers

x = -6 hope that helps :)

1.What is the simplified form of each expression?7x^–8 × 6x^3

a. 42/x^5
b. 1/42x^5
c. 42x^11
d. 13x^–5

(–2x8) · 3y9 · 2x4

a. 3x^12y^9
b. –12x^72y^9
c. –12xy^21
d. –12x^y^9

2. Find the simplified form of the expression. Give your answer in scientific notation.

(8 x 10^7) (7 x 10^4)

a. 1.5 × 10^12
b. 5.6 × 10^12
c. 1.5 x 10^29
d. 5.6 x 10^29


(7 × 10^–4)(9 × 10^–10)

a. 6.3 × 10^–13
b. 63 × 10^–13
c. 6.3 × 10^–15
d. 6.3 × 10^–16

Answers

Answer with explanation:

Ques 1)

A)

         We are given a expression as:

    7x^(-8)* 6x^3

It could also be written as:

  (7* 6)* x^(-8)* x^3\n\n\n=42* x^(-8+3)\n\n\n=42x^(-5)\n\n\n=(42)/(x^5)

  Option: a is the answer.

B)

     (-2x^8)* 3y^9* 2x^4

which is solved as follows:

(-2* 3* 2)* x^8* y^9* x^4\n\n\n=-12x^(8+4)* y^9\n\n\n=-12x^(12)y^9

Ques 2)

A)

The expression is:

         (8* 10^7)(7* 10^4)

It is solved as:

  =(8* 7)* 10^7* 10^4\n\n\n=56* 10^(7+4)\n\n\n=56* 10^(11)\n\n\n=5.6* 10^(12)

                 Option: b is the answer.

B)

           (7* 10^(-4))(9* 10^(-10))

On simplifying:

     =7* 9* 10^(-4)* 10^(-10)\n\n\n=63* 10^(-4-10)\n\n\n=63* 10^(-14)\n\n\n=6.3* 10^(-14+1)\n\n\n=6.3* 10^(-13)

                   Option: a is the answer.

If the measure of angle 2 is (5 x + 14) degrees and angle 3 is (7 x minus 14) degrees, what is the measure of angle 1 in degrees?A.88
B.89
C.90
D.91

Answers

Answer:

d

Step-by-step explanation:

Please i need help ASAP!!! Extra points!!The cost of 3-D movie tickets is $12 for 1 ticket,$24 for 2 tickets, and $36 for 3 tickets. Determine whether the cost is proportional to the number of tickets by graphing on the coordinate plane.Explain your reasoning.

Answers

Answer:

yes the cost is proportional to the number of tickets

Step-by-step explanation:

for each 1 ticket added, it is $12 more

you can graph it by using the equation y=12x where x is the amount of tickets and the y-intercept is (0,0)

Our galaxy contains roughly 250000000000 stars. How many billion is this?

Answers

It is 250 billion. Hope this helps
the answer is 250 billion.
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