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Rudiy27
2 years ago
14

Explain how you can use doubles when multiplying with 4 to find 4x8

Mathematics
1 answer:
Cloud [144]2 years ago
3 0
4 times 8 is 32.  But you could halve 4 and double 8 to get the same result:
2(16) = 32.  You could halve 1 and double 16 to get the same result:  1(32)=32.
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Which situation cannot be represented by the equation 8−x=3?
lubasha [3.4K]

Answer:

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Step-by-step explanation:

4 0
3 years ago
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Find the quotient of 3/5 and 2/3
faltersainse [42]

Answer:

9/10

Step-by-step explanation:

Dividing by a fraction is the same as multiplying by that fraction's reciprocal (basically the fraction flipped).

\frac{3}{5} ÷ \frac{2}{3} = \frac{3}{5} *\frac{3}{2} =\frac{3*3}{5*2} =\frac{9}{10}

4 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=2a%20%7B%20%7D%5E%7B2%7D%20b%20%7B%7D%5E%7B2%7D%20-%207ab%20-%2030" id="TexFormula1" title="2a
yarga [219]

Answer:

(ab - 6)(2ab + 5)

Step-by-step explanation:

Assuming you require the expression factorised.

2a²b² - 7ab - 30

Consider the factors of the product of the coefficient of the a²b² term and the constant term which sum to give the coefficient of the ab- term

product = 2 × - 30 = - 60 and sum = - 7

The factors are - 12 and + 5

Use these factors to split the ab- term

= 2a²b² - 12ab + 5ab - 30 ( factor the first/second and third/fourth terms )

= 2ab(ab - 6) + 5(ab - 6) ← factor out (ab - 6) from each term

= (ab - 6)(2ab + 5) ← in factored form

5 0
3 years ago
Which of the following is true about the expression V3*2
likoan [24]

Answer:

B

Step-by-step explanation:

√3 is an irrational number, 2 is a rational number.

the product of this will be 2√3 in surds form, and when pressed into the calculator will provide you with an irrational answer.

7 0
2 years ago
Help me please! Am horrible at math.
lesya692 [45]

Answer:

Step-by-step explanation:

For a. the 14.7 represents the pressure that the air puts on you all the time.

For b. the d represents the depth you go under the surface of the water.

For c. we have to solve p(d) when d = 8:

p(8) = 14.7 + 0.445(8) so

p(8) = 14.7 + 3.56 and

p(8) = 18.26 psi

5 0
2 years ago
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