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3 years ago

75 points and I’ll give brainlyist and pleas show work

Mathematics

2 answers:

IRISSAK [1]3 years ago

8 0

Answer:

1. y<-2 2. x≤5 3. 0<23 4. 0 ≤ -1 5. inequality: 3 + (7x) < 24 answer: x<3

Step-by-step explanation:

Ymorist [56]3 years ago

7 0

1. 7 - 6y > 9

7 - 6y > 9

Subtract 7 from both sides

-6y > 19 - 7

Subtract 7 from 19 to get 12

-6y > 12

Divide both sides by -6 (because the 6 is negative, the direction of the inequality is changed)

y < 12/-6

Divide 12 by -6 to get -2

y < -2 (graph this on the number line)

2. 2(x+2) - 3x ≥ -1

2 (x+2) - 3x ≥ -1

Use the distributive property to multiply 2 by x+2

2x + 4 -3x ≥ -1

Combine 2x and -3x to get -x

-x + 4 ≥ -1

Subtract 4 from both sides

-x ≥ -1 - 4

Subtract 4 from -1 to get -5

-x ≥ -5

Divide both sides by -1 (again because the 1 is negative, the direction of the inequality is changed)

x ≤ -5/-1

The fraction can be simplified to 5 by removing both negative signs

x ≤ 5 (graph this on the number line)

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2 years ago

There are 12 bags in a box of popcorn that cost $8.25. Find the unit rate for ONE bag of popcorn. Round to the hundredths place.

goldfiish [28.3K]

Answer:

$0.69 for each bag

Step-by-step explanation:

Since you have 12 bags for $8.25, that means you need to divide the price by the number of bags to get the price of each:

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3 years ago

FIVE STARS AND BRAINLIEST FOR CORRECT ANSWER

Charra [1.4K]

For the given vectors $\vec{a}=a_{1}\hat{i}+a_{2}\hat{j}$ and $\vec{b}=b_{1}\hat{i}+b_{2}\hat{j}$

The dot product of vectors a and b is defined as = $\vec{a}.\vec{b}=(a_{1}\times b_{1}+a_{2} \times b_{2})$

So, $\vec{a}.\vec{b} = (4\hat{i}+3\hat{j}). (-4\hat{i}+4\hat{j})$

$\vec{a}.\vec{b}=(4\times(-4)+3 \times4)$

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3 years ago

Factor each polynomial x^2-9x+10 <br> Show your work

jok3333 [9.3K]

Answer:

not factorable

Step-by-step explanation:

$x^{2} - 9x +10\\$

The easiest way to factor is to find two numbers of the "a" value (the coefficient before $x^{2}$ ) and the factors of the c value (10) that ADD up to give you -9, in this case it would be: