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3 years ago

Please help me to answer this question thank you ,quickly .

Mathematics

1 answer:

Alexandra [31]3 years ago

7 0

Answer: 1) 4.22*4.39=18.5258

2)385.3*9.68=3729.704

3)8.5*3.58=30.43

4)1844/4.63=398.272138

5)13.21*2.28=30.1188

6)1454/20.32=30.1188

7)26.56*52.21=1386.6976

8)421.44*5.63=2372.7072

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What is the length of AB? . A9 B. 3 C. 0. D. 12

Tpy6a [65]

Answer:

Step-by-step explanation:

4X =2 X +6

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3 years ago

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Factor the greatest common factor from the polynomial 3x^2 + 6x -9

ryzh [129]

Answer:

$3(x+3)(x -1)$

Step-by-step explanation:

$3x^2 + 6x -9$

All the terms in this polynomial are divisible by 3. Factor 3 out of this polynomial:

$= 3(x^2 + 2x -3)$

Now, factor inside the parentheses by grouping:

$= 3(x^2 -1x+3x -3)$

We knew to split the +2x up into -1x and 3x because -1 and 3 multiply to get -3, which is the last value in the polynomial.

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2 years ago

Can someone please give me the answer to this

Rasek [7]

Answer:

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Step-by-step explanation:

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3 years ago

SW=2x+y, WC= x-2y, W is the midpoint of SC, and SC=20, find the values of x and y.

zysi [14]

Answer:

$x= 6$

$y = -2$

Step-by-step explanation:

Given

$SW = 2x + y$

$WC = x - 2y$

$SC = 20$

Required

Determine x and y

Since W is the midpoint;

$SW = WC = \frac{1}{2} * SC$

$SW = WC = \frac{1}{2} * 20$

$SW = WC = 10$

Substitute 10 for SW and WC

$2x + y = 10$ --- (1)

$x - 2y = 10$ ---- (2)

Make x the subject in (2)

$x = 10 + 2y$

Substitute $x = 10 + 2y$ in (1)

$2(10 + 2y) + y = 10$

$20 + 4y + y = 10$

$20 + 5y = 10$

Solve for 5y

$5y = 10 - 20$

$5y = -10$

Solve for y

$y = -10/5$

$y = -2$

Recall that $x = 10 + 2y$

$x = 10 + 2(-2)$

$x = 10 -4$

$x= 6$

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3 years ago

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Nitella [24]

The answer is choice D

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4 years ago

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