What should I pick ?Joe measured a brick using a ruler with centimeters and got 9 cm. He then measured the same brick using a ruler with millimeters and got 90 mm. Are these measurements equivalent? Why or why not?

A. Yes, because 10 cm is the same as 1 mm.
B. Yes, because 1 cm is the same as 10 mm.
C. No, because 2 cm is not the same as 20 mm.
D. No, because 1 cm is not the same as 1 mm.

Answers

Answer 1
Answer:

Answer:

B

Step-by-step explanation:

because 1 cm is the same as 10mm

Answer 2
Answer:

Answer:

B

Step-by-step explanation:

the answer is B because one centimeter is the same as a 10 mm


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Eric reported that Joan won her first match in the chess tournament, but she won fewer than 8 matches altogether. Eric wrote the inequality m < 8 to represent the possible number of matches Joan wonWhich numbers satisfy the inequality but make no sense in this situation?.

Answers

The choices were: -1 , -7, 4, 0

m < 8

The numbers that satisfies the inequality but makes no sense in this situation are -1, -7, and 0.

Eric has already reported that Joan won her first match, so -1, -7, and 0 can't be used as the value of m.

m can be 1, 2, 3, 4, 5, 6, or 7. all less than 8.

Pls help meeeeeeeeeeeeee

Answers

Answer:

the right answer is:

  • (A) 2+(1)/(2)a

Step-by-step explanation:

You take the equations that the exercise give you:

  1. x + y = 4
  2. x - y = a

Now you clear the "y" variable in any equation you want, in this case, I'm gonna use the second equation:

  • x - y = a
  • -y = a - x

   3. y =  x - a

And now, you'll replace this third equation in the equation you didn't take (the first in this case).

  • x + y = 4
  • x + (x - a) = 4
  • x + x - a = 4

Add the x variables:

  • 2x - a = 4
  • 2x = 4 + a
  • x = (4 + a) / 2

That's the answer of the exercise, but you can represent this in this form:

  • x = (4 + a) / 2    ↔  x = (4)/(2) + (1)/(2) a
  • x = (4 + a) / 2    ↔  x = 2+ (1)/(2) a

By this reason, the right answer is x = 2+ (1)/(2) a.

How do I solve n^2-5n-14=0 by factoring

Answers

(N-7)(n+2)=0 as you'd get n^2-7n+2n-14 then just simplify. Then it would be n=-2 or 7
n^2-5n-14=0 \n n^2-7n+2n-14=0\n n(n-7)+2(n-7)=0\n (n+2)(n-7)=0\n n=-2 \vee n=7

PLEASE ANSWER ASAP! ANSWER MUST INCLUDE EXPLANATION IN ORDER TO RECEIVE 10 POINTS AND THE BRAINLIEST ANSWER! THANKS!!!

Answers

debt means negative ballance

greater than 20 and less than 30
means owes more than -20 and less than -30
-20>x>-30

-24 is answer

Let f(x) = x2 and g(x) = x − 3. Evaluate (g ∘ f)(0).

Answers

The value of ( g o f ) (0) is -3.

Here,

The function is given as;

f (x) = x^(2) and g (x) = x-3

We have to find the value of ( g o f ) (0).

What is Composite function?

Composite function is an operation that takes two functions f and g and produces a function k such that k (x) = g(f(x)).

Now,

The function are;

f (x) = x^(2) and g (x) = x-3

Simplify ( g o f ) (0) as;

( g o f ) (0) = g ( f (0)) = g (0) = 0-3 = -3

Hence, The value of ( g o f ) (0) is -3.

Learn more about the composite function visit:

brainly.com/question/17749205

#SPJ2

f(0) = 0
g(f(0)) = 0 - 3 = -3

answer
(g ∘ f)(0) = -3

50% of all the cakes Lucy bakes that week were party cakes: one fifth were fruit cakes and the remainder were sponge cakes. What percentage of cakes were sponge cakes ?

Answers

50% is equal to 5/10 so 5/10 were party cakes 1/5x2=2/10 so 2/10 were fruit cakes 5/10+2/10=7/10 so 10/10 which is 100% of all cakes 10/10-7/10=3/10 so 3/10 of the cakes were sponge cakes.