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2 years ago

Algebra basics Graphing lines and slope

Mathematics

1 answer:

Nutka1998 [239]2 years ago

5 0

Answer:

y= (-40,-1) x=(-10-17)

Step-by-step explanation:

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What expressions are equivalent to z+(z+6)

lora16 [44]

It would be the number 1 because this is using distributive property. You’re adding the z to both z and 6 separately.

It wouldn’t be number 2 because there’s only one 6. You don’t know the values of the z so you can’t put another 6. It wouldn’t be number 3 because the 30 comes out of nowhere. There’s only one known value in the equation.

3 0

3 years ago

Solve the quadratic equation by factoring. 9x^2-16=0

Harman [31]

Answer:

x= +- 4/3

Step-by-step explanation:

(3x+4)(3x-4)=0

make each equation set to 0 and solve

3x+4=0

subtract 4 from both sides

3x=-4

divide both sides by 3

x=-4/3

3x-4=0

add 4 to both sides

3x=4

divide both sides by 3

x=4/3

4 0

2 years ago

Read 2 more answers

Simplify the following expression by combining like terms. 27 + 12W + 15 + 3W

Stella [2.4K]

It’s 42 + 15w when simplified

8 0

2 years ago

What is the total cost of a $2,099 couch including the 6.5% sales tax

3241004551 [841]

The total cost of a $2,099 couch including the 6.5% sales tax is $ 2235.435

Solution:

Given that,

cost of couch = $ 2099

Sales tax = 6.5%

Finding the total cost of couch with sales tax:

Total cost of couch = selling price of couch + sales tax on the selling price of couch

Plugging in values we get,

Total cost of couch = $ 2,099 + 6.5% sales tax on $ 2099

$\text { Total cost of couch }=2099+\frac{6.5}{100} \times 2099$

Taking "2099" as common term, we get,

$\text { Total cost of couch }=2099\left(1+\frac{6.5}{100}\right)$

On solving brackets,

$\text { Total cost of couch }=2099 \times 1.065=2235.435$

Hence, the total cost of the couch is found as $ 2235.435

7 0

2 years ago

2m = −6n − 5; n = 1, 2, 3

Luden [163]

Answer:

Answer is given below with explanations. 

Step-by-step explanation:

$2m = - 6n - 5 \\ given \: n = 1,2,3 \\ when \: n = 1 \\ 2m = - 6(1) - 5 \\ 2m = - 11 \\ m = \frac{ - 11}{2} \\when \: n = 2 \\ 2m = - 6(2) - 5 \\ 2m = - 17 \\ m = \frac{ - 17}{2} \\ when \: n = 3 \\ 2m = - 6(3) - 5 \\2 m = - 23 \\ m = \frac{ - 23}{2}$

 HAVE A NICE DAY!

THANKS FOR GIVING ME THE OPPORTUNITY TO ANSWER YOUR QUESTION. 

8 0

2 years ago