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Katarina [22]
3 years ago
5

ANSWER ASAP FOR QUIZ

Mathematics
1 answer:
aev [14]3 years ago
7 0
You must try to remove one of the unknown variables from the system by multiplying one in a way that when adding (or subtracting) one to another “makes it disappear” and so whatever value you get can be substituted back in to get the other unknown!

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Find the difference 3/4(3x+6)−14(5x−24)
PolarNik [594]
The answer is -271/4x + 681/2

7 0
3 years ago
What is the slope of a line that is parallel to the line whose equation is 5y+2x=12?
murzikaleks [220]

Answer:

Step-by-step explanation:

y=-2/5x

4 0
3 years ago
Read 2 more answers
Katie earns $12 an hour. Which graph represents the relationship between the number of hours Katie works and her earnings,
klasskru [66]

Answer:

first top left graph? 12×4 is 48 so that puts it about right

7 0
2 years ago
Read 2 more answers
Use the equation a = IaIâ
german

Answer:

a) \:\:=\sqrt{14}\cdot \frac{\:\:}{\sqrt{14} }

b)\:\:=\sqrt{29} \cdot \frac{\:\:}{\sqrt{29} }

c) \:\:=7\cdot \frac{\:\:}{7}

Step-by-step explanation:

a) Let <u>a</u>=<2,1,-3>

The magnitude of <u>a</u> is |a|=\sqrt{2^2+1^2+(-3)^2}

|a|=\sqrt{4+1+9}=\sqrt{14}

The unit vector in the direction of a is

\hat{a}=\frac{\:\:}{\sqrt{14} }

Using the relation a=|a|\hat{a}, we have

\:\:=\sqrt{14}\cdot \frac{\:\:}{\sqrt{14} }

b) Let a=2i - 3j + 4k

|a|=\sqrt{2^2+(-3)^2+4^2}

|a|=\sqrt{4+9+16}=\sqrt{29}

\hat{a}=\frac{\:\:}{\sqrt{29} }

Using the relation a=|a|\hat{a}, we have

\:\:=\sqrt{29} \cdot \frac{\:\:}{\sqrt{29} }

c) Let us first find the sum of <1, 2, -3> and <2, 4, 1> to get:

<1+2, 2+4, -3+1>=<3, 6, -2>

Let a=<3, 6, -2>

The magnitude is

|a|=\sqrt{3^2+6^2+(-2)^2}

|a|=\sqrt{9+36+4}=\sqrt{49}=7

The unit vector in the direction of <u>a</u> is

\hat{a}=\frac{\:\:}{7}

Using the relation a=|a|\hat{a}, we have

\:\:=7\cdot \frac{\:\:}{7}

5 0
3 years ago
Hi I need help on one questions it is Cora has two links of ribbon one ribbon is 2 feet long. The other ribbon is 30 inches long
Assoli18 [71]

Answer:

The ribbon that is 30 inches is longer.

Step-by-step explanation:

1 foot = 12 inches

2 feet = 24 inches

30 inches > 24 inches

4 0
3 years ago
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