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2 years ago

What is the value of a?

Mathematics

1 answer:

cricket20 [7]2 years ago

7 0

A is the first letter in the alphabet it makes a ahhhhhh sound and is a very usful letter and is clasafiyed as a vauve

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Drag each equation to the value of the n that makes it true

Svetradugi [14.3K]

please see in the photo for the answer , thanks :-)

3 0

2 years ago

Solve algebraically:

vichka [17]

<h3>Answer:</h3>

$a)\ x_1=-9,\ x_2=9\\\\b)\ x_1=1,\ x_2=5$

<h3>Step-by-step explanation:</h3>

<u>Given equations:</u>

$a)\ 2x^2 - 162 = 0\\\\b) -\dfrac{1}{2}(x-3)^2=-2$

A) 2x² - 162 = 0

Step 1: Divide both sides by 2.

<h3> $\\\implies \dfrac{2x^2 - 162}{2} = \dfrac{0}{2}\\\\\implies x^2-81=0\\\\\implies x^2=81$ </h3>

Step 2: Take the square root of both sides (using both the positive and negative roots).

$\\\implies \sqrt{x^2}=\sqrt{81}\\\\\implies x=\pm\ 9$

Step 3: Separate into two cases.

$\implies x_1 = -9,\ x_2 =-9$

----------------------------------------------------------------------------------------------------------------

B) -1/2(x - 3)² = -2

Step 1: Multiply both sides by -2.

$\\\implies -2\left(-\dfrac{1}{2}(x-3)^2\right)=-2(-2)\\\\\implies (x-3)^2=4$

Step 2: Take the square root of both sides (using both the positive and negative roots).

$\\\implies\sqrt{(x-3)^2}=\sqrt{4}\\\\\implies x-3=\pm\ 2$

Step 3: Separate into two cases and solve each one. $1)\ x-3=-2\implies x=-2+3\implies \boxed{x=1}\\\\2)\ x-3=2\implies x=2+3\implies \boxed{x=5}$

6 0

2 years ago

Read 2 more answers

Ill give braniliest

erastova [34]

Answer:

The fourth term is 20

Step-by-step explanation:

first term =50

term rule = n-10

if first term is 50

second term =50-10=40

third term =40-10=30

fourth term =30-10=20

4 0

3 years ago

Read 2 more answers

At a restaurant, brunch cost $18.50. As the cost of ingredients rises, the cost of brunch also rises by 40%. What is the new pri

statuscvo [17]

$25.90 because if you move the decimal over one place in 18.50 you get 1.85 that is 10% so you take that times four and get $7.50 add that to 18.50 and you get the answer

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2 years ago

During a paint sale hardware store sold 33 gallons of flat paint and 57 gallons of high-gloss paint what’s the ratio of gallons

ludmilkaskok [199]

High gloss : total
57 : 57+33
57 : 90
57 ÷ 3 : 90 ÷ 3
19 : 30

3 0

2 years ago