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Sever21 [200]
3 years ago
9

Joe says that the following statement is true. Do you agree? Explain. 4×3)3+5-10=4×3+5-10​

Mathematics
1 answer:
Shkiper50 [21]3 years ago
4 0

Answer:

The answer is True.   Hope this helps. :)

Step-by-step explanation:

( 4 x 3 ) 3 + 5 - 10 = 4 x 3 + 5 - 10

  1. (4x3) = 12
  2. 3 + 5 = 8

  1. 4 x 3 = 12
  2. 3 + 5 = 8

This is basically an example of PEMDAS.

Perimeter

Equation

Multiplication

Division

Addition

Subtraction

(Multiplication is ahead of Addition, you multiply first)

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Show me another way to round 212 and 361
o-na [289]

Answer:

rounded to 10s, 210 + 360 = 570

rounded to 100s, 200 + 400 = 600

6 0
3 years ago
(a) A dog owner records the weight of her dog. She finds that from the age of 20 weeks to the age of 48 weeks, the dog’s weight c
Cerrena [4.2K]

Answer:

(i)23.77kg

(ii)(ii) the inequality 20≤t≤48 means the weight of the dogs determined is for dogs that have the age of 20 weeks or less to the age of 48 weeks not more.

(iii)44 weeks

(iv)0.92

(v)Attached

(vi)The value of weight will be negative,which is unrealistic.

Step-by-step explanation:

(i)Given that the weight is modeled by the equation;

w = 0.92t−0.15 (20 ≤ t ≤ 48)

then substitute the value of t in the equation given that t=26 weeks

w=0.92*26-0.15=23.77kg

(ii) the inequality 20≤t≤48 means the weight of the dogs determined is for dogs that have the age of 20 weeks or less to the age of 48 weeks not more.

(iii)Apply the equation for weight

w=0.92t-0.15

40=0.92t-0.15

40+0.15=0.92t

40.15=0.92t

40.15/0.92=t

43.6⇒⇒44 weeks

(iv) Here , write the equation in slope intercept form of y=mx+c where m is the slope and c is the y-intercept

w=0.92t-0.15

y=mx+c

m=0.92

(v)sketch attached

(vi)

At birth, t=0 hence to find weight

w=0.92t-0.15

w=0.92*0-0.15

w=0-0.15

w=-0.15

The model cannot be extended to model accurately the dog's weight at birth because you will get a negative value for weight which is not realistic.

8 0
3 years ago
Probability question
Lorico [155]
N = 45
Sample size = 6

\text {Number of combination = } C(45, 6) =  \dfrac{45!}{6!39!} = 8 145, 060

Answer:  8 145, 060
5 0
3 years ago
Find the volume of the solid shown or described. If necessary, round to the nearest tenth.
Wittaler [7]

Answer:

158.4cm³

Step-by-step explanation:

4.4*9*12/3=158.4cm

length*width*height divided by 3

8 0
3 years ago
A dog has a mass of 19 kg. What is the mass of the dog in
liq [111]

Answer:c. 1.9 × 10⁴ g

Step-by-step explanation:

6 0
3 years ago
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