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3 years ago

PLEASE HELP ME NOW!!

Mathematics

2 answers:

vovikov84 [41]3 years ago

7 0

Step-by-step explanation:

a. Twice a number increased by 5

Assuming the number as x

Therefore, It's ${{\underline{\textsf{\textbf{2x + 5}}}}}$

b. Five decreased by twice a number

Assuming the number as x

Therefore, It's ${{\underline{\textsf{\textbf{2x - 5 }}}}}$

c. twice the difference of a number and five.

Assuming the number as x

Therefore, It's ${{\underline{\textsf{\textbf{2(x - 5)}}}}}$

d. Twice the sum of a number and five

Assuming the number as x

Therefore, It's ${{\underline{\textsf{\textbf{2(x + 5)}}}}}$

e. five subtracted from twice a number

Assuming the number as x

Therefore, It's ${{\underline{\textsf{\textbf{ 2x - 5}}}}}$

f. twice a number, less five

Assuming the number as x

Therefore, It's ${{\underline{\textsf{\textbf{5 - 2x}}}}}$

<h3>Hope it helps!!</h3>

timama [110]3 years ago

6 0

Answer:

Twice a number increased by five - 2x + 5

Five decreased by twice a number- 5 - 2x

Twice the difference of a number and five- 2(x - 5)

Twice the sum of a number and five= 2(x + 5)

Five subtracted from twice a number= 2x - 5

Twice a number, less five= 2x - 5

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Help! Please! Geometry!!

DiKsa [7]

By the Segment Addition Postulate, SAP, we have

XY + YZ = XZ

YZ = XZ - XY = 5 cm - 2 cm = 3 cm

10.

M is the midpoint of XZ=5 cm so

XM = 5 cm / 2 = 2.5 cm

11.

XY + YM = XM

YM = XM - XY = 2.5 cm - 2 cm = 0.5 cm

12.

The midpoint is just the average of the coordinate A(-3,2), B(5,-4)

$M = (A+B)/2 = \left( \dfrac{-3 + 5}{2}, \dfrac{2 + -4}{2} \right)$

Answer: M is (1,-1)

You'll have to plot it yourself.

13.

For distances we calculate hypotenuses of a right triangle using the distnace formula or the Pythagorean Theorem.

$AB^2 =(5 - -3)^2 + (-4 - 2)^2 = 8^2 + 6^2 = 100$

Answer: AB=10

M is the midpoint of AB so

Answer: AM=MB=5

14.

B is the midpoint of AC. We have A(-3,2), B(5,-4)

B = (A+C)/2

2B = A + C

C = 2B - A

C = ( 2(5) - -3, 2(-4) - 2 ) = (13, -10)

Check the midpoint of AC:

(A+C)/2 = ( (-3 + 13)/2, (2 + -10)/2 ) = (5, -4) = B, good

Answer: C is (13, -10)

Again I'll leave the plotting to you.

5 0

3 years ago

GIVING BRAINIEST IF CORRECT!!<br><br> Factor x^4 - 16 completely

ioda

Answer:

$(x^2 + 4)(x + 2)(x - 2)$

Step-by-step explanation:

Hello!

We can use the difference of square method.

<h2>Difference Of Squares (DOS)</h2>

The formula for the DOS is $(a + b)(a - b) = a^2 - b^2$

It is a simple way to factor polynomials.

The criteria:

Has to begin and end with a perfect square
The operation has to be subtraction

<h3>Factor:</h3>

$x^4 - 16$

Begins with a perfect square (x² * x²) and ends with a perfect square (4 * 4)

$(x^2 + 4)(x^2 - 4)$

Warning! Watch out, there may be another DOS!

$x^2 - 4$ is another DOS

$(x^2 + 4)(x + 2)(x - 2)$

The x² + 4 is not a DOS because the operation is addition.

The final factored form is $(x^2 + 4)(x + 2)(x - 2)$

8 0

2 years ago

Need help just 12 and 14 and answer choices

Lina20 [59]

12) First multiply 354 by 3.

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3 years ago

Any number that CAN be divided by 2 without having remainder is considered an _______ number

azamat

Step-by-step explanation:

Any number that can be divided by 2 without having remainder is considered an even number.

I hope it helped U

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8 0

3 years ago

8 less than the product of 9 and a number is 15

Shkiper50 [21]

8-9n=15 I believe
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4 0

3 years ago

Read 2 more answers