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2 years ago

Help very easy math!!

Mathematics

1 answer:

Elodia [21]2 years ago

3 0

Answer:

$y = x - 5$

Step-by-step explanation:

<u>GIVEN :-</u>

Slope of the line = 1
y-intercept of the line = -5

Equation of the line in slope-intercept form

<u>FACTS TO KNOW BEFORE SOLVING :-</u>

Lets say there's a line whose slope is 'm' & y-intercept is 'c'. So, the equation of line in slope-intercept form is → $\boxed {y = mx + c}$

<u>SOLUTION :-</u>

By using the basic idea of slope-intercept form , the equation of line given in the question is :-

$y = (1 \times x) + (-5)$

$=> y = x - 5$

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A Delivery service charges $25 per pound for making a delivery. If there is an additional 8% sales tax, what is the cost of deli

mafiozo [28]

The cost of delivering an item that weighs 4/5 of a pound?$21.60.

<h3>How to find the delivery cost?</h3>

Let x = the number of pounds

Thus, we can say that;

Cost = 25x * 1.08

Since we want to find the cost of delivering an item that weighs 4/5 of a pound, the we will put 4/5 for x to get;

Cost = (25 * 4/5) * 1.08

Cost = 20 * 1.08

Cost = 21.6

The delivery cost would be $21.60.

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1 year ago

What the square of 8^2

Novosadov [1.4K]

Answer:

8^2 = 64

unless you mean 8^2's square root then it is 8

Step-by-step explanation:

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2 years ago

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Step-by-step explanation:

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2 years ago

In the given figure △ABC ≅△DEC. Which of the following relations can be proven using CPCTC ?

Serhud [2]

Option B:

$\overline{A B}=\overline{D E}$

Solution:

In the given figure $\triangle A B C \cong \triangle D E C$ .

If two triangles are similar, then their corresponding sides and angles are equal.

By CPCTC, in $\triangle A B C \ \text{and}\ \triangle D E C$ ,

$\overline{AB }=\overline{DE}$ – – – – (1)

$\overline{B C}=\overline{EC}$ – – – – (2)

$\overline{ CA}=\overline{CD}$ – – – – (3)

$\angle ACB=\angle DCE$ – – – – (4)

$\angle ABC=\angle DEC$ – – – – (5)

$\angle BAC=\angle EDC$ – – – – (6)

Option A: $\overline{B C}=\overline{D C}$

By CPCTC proved in equation (2) $\overline{B C}=\overline{EC}$ .

Therefore $\overline{B C}\neq \overline{D C}$ . Option A is false.

Option B: $\overline{A B}=\overline{D E}$

By CPCTC proved in equation (1) $\overline{AB }=\overline{DE}$ .

Therefore Option B is true.

Option C: $\angle A C B=\angle D E C$

By CPCTC proved in equation (4) $\angle ACB=\angle DCE$ .

Therefore $\angle A C B\neq \angle D E C$ . Option C is false.

Option D: $\angle A B C=\angle E D C$

By CPCTC proved in equation (5) $\angle ABC=\angle DEC$ .

Therefore $\angle A B C\neq \angle E D C$ . Option D is false.

Hence Option B is the correct answer.

$\Rightarrow\overline{A B}=\overline{D E}$

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3 years ago

Can i get help working out 3x− 12 = 2x+ 3

Naddik [55]

Answer:

x = 15

Step-by-step explanation:

3x− 12 = 2x+ 3

3x-2x-12 = 3

x = 3+12

x=15

hope this helps! :)

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2 years ago