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2 years ago

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Which is the best first step when solving the following system of equations? 5 c + 4 d = 10. 3 c + 2 d = 16. Multiply the first

equation by Negative 2. Solve for d in the second equation. Solve for c in the first equation. Multiply the second equation by Negative 2.

1 answer:

Virty [35]2 years ago

8 0

Answer:

5c+4d=10

3c+2d=16

8c+6c=26

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Find the length of a B leave your answers in the terms of pi

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AB = 6*120*pi/180 = 4pi

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D'Quan's grandmother made a quilt for his bed. The quilt is 2.44 meters long and 1.83 meters wide. What is the area of the quilt

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3 years ago

Which equation could be solved using this application of the quadratic formula? A. -2x2 â’ 8 = 10x â’ 3 B. 3x2 â’ 8x â’ 10 = 4 C

hodyreva [135]

The given question can be solve using quadratic formula.

The correct option is (c) $3x^2 +8x -10=-8$ .

Given:

The given equation is,

$x=\dfrac{-8\pm\sqrt{8^2-4(3)(-1)}} {2(3)}$ ---------------------------(1)

Write the general quadratic equation.

$ax^2 + bx +c=0$

Write the quadratic formula.

$x =\dfrac {-b \pm \sqrt{(b^2 - 4ac)} } {2a}$ ------------------------------- (2)

Compare equation (1) and (2).

$a=3\\b=8\\c=-2$

Substitute the value of $a$ , $b$ and $c$ in general quadratic.

$3x^2 +8x -2=0$

Subtract $8$ from each side of above equation.

$3x^2 +8x -2 -8=0-8\\3x^2 +8x -10=-8$

Thus, the correct option is (c) $3x^2 +8x -10=-8$ .

Learn more about quadratic equation here:

brainly.com/question/17177510

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2 years ago

I don’t know how to do this help!

nexus9112 [7]

$\frac{1}{16}$

8 0

3 years ago

Read 2 more answers

The Fibonacci sequence is the sequence 1, 1, 2, 3, 5, ... where the first and second terms are 1 and each term after that is the

noname [10]

Answer:

44,278,106,022,432,739,384.375 = 1/8 of ((1+√5)/2)^100/√5

Step-by-step explanation:

We separate the x10^21 number into 2 so that becomes x10^8 number with decimal of .75 when it is a x10^21 split into 2 large parts and a small subtraction creates the third step. we have found 1/4 then we half.

354224848179261915075 / 4

= 000000000000065478768.75

354224 848179000000000/4

-88556212044.8

= 354 has become a 12 digit number temporary starting with 885 the decimal .8 is simply put in front

3542248481 79- so it has become a x10^20 number. 885562120448,65478768.75

We arrange the comma's

88,556,212,044,865,478,768.75

88,556,212,044,865,478,768.75

88,556,212,044,865,478,768.75

88,556,212,044,865,478,768.75 is division by 4

=354224848179261915075

88,556,212,044,865,478,768.75 /2

= 44278106022 (/2) 432739384.375(/2) in two part.

= 44278106022,432739384.375 replace /2 with comma

= 44,278,106,022,432,739,384.375 replace all other comma.

4 0

3 years ago