3 years ago

PLZZZZZ NEED HELP!!!!!!

Mathematics

1 answer:

Alisiya [41]3 years ago

4 0

Answer is C. multiply by 3 - square root 5

using a^2 - b^2 = (a + b)(a - b)

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Solve for X. Please help! 35 points

Rufina [12.5K]

5x+3=6x-4
-x=-7
X=7
Hope this helps!

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2 years ago

What is the value of the 8 in the number 2.387

tamaranim1 [39]

Answer:

Step-by-step explanation:

If the point represents decimal, the position of number 8 is

hundredth.

But if represents Thousands the position of number 8 is

tens

6 0

3 years ago

Read 2 more answers

What is the length of EF ? A. 8 pi B. 4 pi C. 2 pi D. Pi

Pani-rosa [81]

I think the answer is B

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2 years ago

Am I correct? (Perfect Square Form)

natka813 [3]

Answer:

$(x -3 )^2 = 10$

Step-by-step explanation:

Given

$x^2 - 6x - 1 = 0$

Required: Express as a perfect square

$x^2 - 6x - 1 = 0$

Add 10 to both sides

$x^2 - 6x - 1 +10= 0+10$

$x^2 - 6x +9= 10$

Expand

$x^2 - 3x - 3x+9= 10$

Factorize:

$x(x - 3) - 3(x - 3)= 10$

Factorize:

$(x -3 )(x - 3) = 10$

$(x -3 )^2 = 10$

8 0

3 years ago

How many groups of 1/2 days are in 1 week? Write a multiplication equation or a division equation to represent the question, the

worty [1.4K]

Answer:

14 groups

Step-by-step explanation:

Given

$Groupings = \frac{1}{2}\ day$

$Duration = 1\ week$

Required

Determine the number of group in the week

To do this, we simply divide the duration by the number half day group.

This gives:

$Group = \frac{Duration}{Groupings}$

$Group = \frac{1\ week}{1/2\ days}$

Convert week to days

$Group = \frac{7\ days}{1/2\ days}$

$Group = \frac{7}{1/2}$

$Group = 7 / \frac{1}{2}$

Convert to multiplication

$Group = 7 * \frac{2}{1}$

$Group = \frac{14}{1}$

$Group = 14$

Hence, there are 14 groups

4 0

3 years ago