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3 years ago

Explain how solving 8+2 can help you solve 80+20?

Mathematics

2 answers:

SVETLANKA909090 [29]3 years ago

5 0

80+20 is ten times 8+2, if you factor out 10 from 80+20 we get 10(8+2)

hram777 [196]3 years ago

5 0

Adding 8+2 is the same as adding 80+20 all your going is adding the zero
80+20=100

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What is the answer to this question?

Nitella [24]

Answer:

11x+2

Step-by-step explanation:

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3 years ago

Find the value of c that completes the square for x2−15x+c

meriva

Answer:

The value of c is $\frac{225}{4}$ .

Step-by-step explanation:

The perfect square of the difference between two numbers is:

$(x-y)^{2}=x^{2}-2xy+y^{2}$

The expression provided is:

$x^{2}-15x+c$

The expression is a perfect square of the difference between two numbers.

One of the number is x and the other is √c.

Use the above relation to compute the value of c as follows:

$x^{2}-15x+c=(x-\sqrt{c})^{2}\\\\x^{2}-15x+c=x^{2}-2\cdot x\cdot\sqrt{c}+c\\\\15x=2\cdot x\cdot\sqrt{c}\\\\15=2\cdot\sqrt{c}\\\\\sqrt{c}=\frac{15}{2}\\\\c=[\frac{15}{2}]^{2}\\\\c=\frac{225}{4}$

Thus, the value of c is $\frac{225}{4}$ .

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3 years ago

Please awnser correct awnser! < 3

Gwar [14]

Answer:

y = (1/4)x + 0

y = (1/4)x

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Step-by-step explanation:

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2 years ago

Read 2 more answers

Express the equation in the slope y-intercept form: y = mx + b. 2x−3y+1 = 0

horrorfan [7]

Answer:

y = 2/3x+1/3

Step-by-step explanation:

2x−3y+1 = 0

Solve for y

Add 3y to each side

2x−3y+1 +3y= 0+3y

2x +1 = 3y

Divide by 3

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2/3x +1/3 = y

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y = 2/3x+1/3

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If we round it
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