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4 years ago

10

To form 3 adjacent squares (as in the figure), 10 toothpicks are required. How many toothpicks are required to form 50 adjacent

squares?

1 answer:

nalin [4]4 years ago

6 0

3/10 =50/x First multiply 50x10 then divide that number by 3 to get the answer

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Mai skated x miles, and Clare skated 2 times farther than that. Write an equation to represent the relationship between the dist

Sphinxa [80]

Y=x2

Y=the answer
X= Mai skated
X2= Mai’s distance times 2 equals Clare’s distance

7 0

2 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

6 0

2 years ago

Maths help please!!!!!!!!

boyakko [2]

Answer: The answer is a

Step-by-step explanation:

Let's solve for f.

fx=2x^3−3x^2

Step 1: Divide both sides by x.

fx/x =2x^3−3x^2/x

f=2x^2−3x

Answer:

f=2x^2−3x

6 0

3 years ago

Ms smith has 28 sixth graders and 35 seventh graders for math. If she wants to break the two grades into identical groups withou

Olegator [25]

28+35=63
63/3=21
Answer is 3 groups

3 0

3 years ago

My friend and I have different calling plans. Mine has a monthly fee of $10 and $0.08 per minute charge. My friend pays $0.06 a

loris [4]

difference is monthly customer fee= 15-10 = $5

difference in minutely charge = 0.08-0.06 = $0.02

minutes it takes for plans to cost same amount= 5÷0.02 = 250 min

7 0

4 years ago