2 years ago

Are the ratios 3:4 and 2:5 equivalent? yes or no

Mathematics

2 answers:

diamong [38]2 years ago

8 0

No you can’t multply anything by 3:4 to get 2:5 or u can’t do the same the other way

olya-2409 [2.1K]2 years ago

7 0

Answer:

Step-by-step explanation:

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How do you do this problem?

Burka [1]

Let area of triangle AEC = x

Area of triangle BAC = 1/2 * 15 * 12 = 90

Area of triangle DCA = 1/2 * 15 * 6 = 45

90 = p + x and

45 = q + x Subtracting the 2 equations:-

90 - 45 = p - q

Answer p - q = 45

7 0

3 years ago

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Jia is skipping a rock across a pond. The sequence {4.2, 3.57, 3.0345, 2.5793, …} describes the height of the rock on each succe

mylen [45]

Answer:

$u_n=4.2(0.85)^{n-1}$

Step-by-step explanation:

$u_1=4.2\\u_2=3.57\\u_3=3.0345\\u_4=2.5793$

Geometric formula sequence: $u_n=ar^{(n-1)}$

(where $a$ is the first term of the sequence and $r$ is the common ratio)

To find the common ratio, divide one of the terms by the previous term:

$r=\frac{u_2}{u_1} =\frac{3.57}{4.2} =0.85$

From inspection, $a=4.2$

Therefore, $u_n=4.2(0.85)^{n-1}$

8 0

2 years ago

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Which equation has no solution? Select all that apply.

melamori03 [73]

Answer:

I think it is C

Step-by-step explanation:

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2 years ago

Which algebraic expression represents the phrase “the quotient of negative eight and the sum of a number and three”?

morpeh [17]

Answer:

The answer is A. $\frac{-8}{g+3}$

Step-by-step explanation:

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3 years ago

The expression 9x2 - 5x - 7 has ___ terms and a constant of ___.

lukranit [14]

Here r ur terms : (9x^2) , (-5x) , (-7)......so there r 3 terms
constant : a number by itself...no variables....so ur constant is -7

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3 years ago

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