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3 years ago

PPPPPPPPlease help me (20 points!!!!)

Mathematics

1 answer:

Vika [28.1K]3 years ago

4 0

$\longrightarrow{\mathfrak{\frac{-9}{6}÷\frac{3}{-2}}}$

$\longrightarrow{\sf{\frac{-\cancel{9}}{\cancel{6}}\times\frac{-\cancel{2}}{\cancel{3}}}}$

$\longrightarrow{\sf{\frac{3}{3}}}$

$\longrightarrow{\boxed{\bf{1}}}$

Identity applied -

$\star{\:\:\:\:\:\:\boxed{\bf{\frac{a}{b}÷\frac{c}{d}=\frac{a}{b}\times\frac{d}{c}}}}$

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What is the degree of the polynomial of 5x+9

taurus [48]

Answer:

"first"

Step-by-step explanation:

The only variable is x, and this x is to the first power. So the degree of this poly is "first."

4 0

4 years ago

What is the solution to the following equation? <br> 7x−5=2x+5

NeTakaya

Answer:

x = 2

Step-by-step explanation:

7x−5=2x+5

step 1 add 5 to each side

-5 + 5 = cancels out

5 + 5 = 10

we now have 7x = 2x + 10

step 2 subtract 2x from each side

2x - 2x cancels out

7x - 2x = 5x

we now have 10 = 5x

step 3 divide each side by 5

5x / 5 = x

10 / 5 = 2

we' re left with x = 2

8 0

3 years ago

Can someone please help me factor this

Dmitry_Shevchenko [17]

Answer:

$\huge\boxed{\bf\:1}$

Step-by-step explanation:

$\frac{ x ^ { 2 } -4x+3 }{ x ^ { 2 } -7x+12 } \times \frac{ x ^ { 2 } +2x-24 }{ x ^ { 2 } +5x-6 } ^ { }$

Take $\frac{ x ^ { 2 } -4x+3 }{ x ^ { 2 } -7x+12 }$ & factorise it at first.

$\frac{ x ^ { 2 } -4x+3 }{ x ^ { 2 } -7x+12 } \\= \frac{\left(x-3\right)\left(x-1\right)}{\left(x-4\right)\left(x-3\right)}\\= \frac{x-1}{x-4}$

Now factorise the next set : $\frac{ x ^ { 2 } +2x-24 }{ x ^ { 2 } +5x-6 } ^ { }$ .

$\frac{ x ^ { 2 } +2x-24 }{ x ^ { 2 } +5x-6 } ^ { }\\= \frac{\left(x-4\right)\left(x+6\right)}{\left(x-1\right)\left(x+6\right)}\\= \frac{x-4}{x-1}$

Now, multiply the two simplified results.

$\frac{ x ^ { 2 } -4x+3 }{ x ^ { 2 } -7x+12 } \times \frac{ x ^ { 2 } +2x-24 }{ x ^ { 2 } +5x-6 } ^ { }\\= \frac{x-1}{x-4}\times \frac{x-4}{x-1} \\= \frac{\left(x-1\right)\left(x-4\right)}{\left(x-4\right)\left(x-1\right)} \\= \boxed{\bf\: 1}$

$\rule{150pt}{2pt}$

7 0

3 years ago

A car uses one gallon of gasoline for every 20 miles it travels. If a gallon of gasoline costs $3.98, how much will the gas cost

9966 [12]

Answer: 36

Step-by-step explanation:

1.) You divide 180 by 20 to find out how many gallons their are

180÷20= 9

2.) Now you multiply the 9 by the cost of each gallon, which is $3.98

9×3.98= 35.82

3.) 35.82 is rounded to $36

3 0

3 years ago

2 MATH K.

Ann [662]

Answer:

Step-by-step explanation:

Given the addition problem:

58 + 36

We can form a table :

5 _______ 8

3 _______ 6

9 4

Hence, (58 + 36) = 94

4 0

3 years ago