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Juliette [100K]

3 years ago

12

I have been doing math all day, please help!

2 answers:

tester [92]3 years ago

8 0

Substitute x and y with the value from table. The correct answer is A. 7=-3(-1)+4.

Kay [80]3 years ago

8 0

Answer:

y = -3x + 4

Step-by-step explanation: Substitute the numbers in for x & y to see which one is the answer.

(-1, 7):

y = -3x + 4

7 = -3(-1) + 4

7 = 3 + 4

7 = 7

TRUE

(2, -2):

y = -3x + 4

-2 = -3(2) + 4

-2 = -6 + 4

-2 = -2

TRUE

(7, -17):

y = -3x + 4

-17 = -3(7) + 4

-17 = -21 + 4

-17 = -17

TRUE

(10, -26):

y = -3x + 4

-26 = -3(10) + 4

-26 = -30 + 4

-26 = -26

TRUE

Hope this helps you!!! :)

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Which of the following is the correct definition for dependent events? A. Two events are dependent if they have no outcomes in c

tatuchka [14]

The correct definition of dependent events is two events are dependent if the outcome of the first event affects the outcome of the second event.

<h3>What are dependent events?</h3>

Two events are dependent if the outcome of one of the event depends on the outcome of the first event. An example of a dependent event is if it rains, the floor would be wet.

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2 years ago

Can someone help me with number 4 plz I will give 30 points

djyliett [7]

Answer:

Yes

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

-3 (4 - 2y) = 24<br> Solve for "y"<br> Best answer get rewarded <br> Please show work

arlik [135]

-3(4-2y)=24

Apply distributive property

-12+6y=24

Add 12 to both sides

6y=36

Divide both sides by 6

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6 0

4 years ago

I need help SHOW YOUR WORK

earnstyle [38]

Answer:

$F)\displaystyle \: 100\pi{ x}^{8} {y}^{2} {z}^{ 6}$

Step-by-step explanation:

we are given r and the formula

we want to find the surface area of the shpare with the given r

to do so

we need our algebra skills

substitute the value of r:

$\displaystyle \: S = 4\pi( {5x}^{4} y {z}^{ 3} {)}^{2}$

recall law of exponent

$\displaystyle \: ({x}^{m} {)}^{n} \iff \: {x}^{mn}$

to simplify:

$\displaystyle \: S = 4\pi({ {5}^{2} x}^{4 \times 2} {y}^{1 \times 2} {z}^{ 3 \times 2} )$

simplify multiplication:

$\displaystyle \: S = 4\pi({ 25x}^{8} {y}^{2} {z}^{ 6} )$

distribute:

$\displaystyle \: S = 100\pi{ x}^{8} {y}^{2} {z}^{ 6}$

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5 0

3 years ago

Number 4 I have no idea how to do.

natta225 [31]

Volume is a three-dimensional scalar quantity. The cost of the glass is $1312.24.

<h3>What is volume?</h3>

A volume is a scalar number that expresses the amount of three-dimensional space enclosed by a closed surface.

Given the colony must be able to take a volume of 200,000 cubic meters, therefore, the diameter of the hemisphere will be,

The volume of Hemisphere = (2/3)πr³

200,000 = (2/3) × π × R³

R = 45.7

The area of the base of the hemisphere is,

Area of the base = πR² = π×(45.7) = 6561.185 meters²

Given the cost of glass is $0.20 per square meter, therefore, the cost of the glass of the base will be,

Cost of glass = 6561.185 × 0.20 = $1312.24

Hence, the cost of the glass is $1312.24.

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3 0

2 years ago