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3 years ago

HELPPPPP !!!

Mathematics

2 answers:

kifflom [539]3 years ago

7 0

Answer:

(A) the subtraction property of equality

Step-by-step explanation:

Given

The steps in the question

Require

Justify step 2 to 3

Write out step 2:

$-4x+9 = 2x+10$

Apply subtraction property by subtracting 2x from both sides

$-4x-2x+9 = 2x-2x+10$

$-6x+9 = 10$

Notice that the above equation is represented in step 3.

<em>Hence, option A answers the question.</em>

charle [14.2K]3 years ago

7 0

A. the subtraction property of equality

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Grandma received 0.25 liters of medicine from her doctor. The directions asked her to take one teaspoonful 3 times daily until i

kupik [55]

Answer:

Dec 10

Step-by-step explanation:

0.25 liter = 250 ml

4 ml * 3 = 12 ml

250/12 = 20.83 days

Nov 20 - Nov 30: 11 days

Dec 1 - Dec 9: 9 days

On December 9, she can still take her 3 doses.

By December 9, she will have taken 12 ml per day for 20 days for a total of 240 ml. She has 10 ml left for Dec 10th.

On Dec 10, she will take 2 doses of 4 ml and 1 dose of 2 ml, and she will finish the medicine.

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2 years ago

If f(x) = x2 - 2x and g(x) = 6x + 4 for which value of x does (t +g)(x)=0

Vinil7 [7]

Answer:

-2

Assumption:

Find the value of x such that $(f+g)(x)=0$ .

Step-by-step explanation:

$(f+g)(x)=0$

$f(x)+g(x)=0$

$(x^2-2x)+(6x+4)=0$

Combine like terms:

$x^2+4x+4=0$

This is not too bad too factor on the left hand side since 2(2)=4 and 2+2=4.

$(x+2)(x+2)=0$

$(x+2)^2=0$

So we need to solve:

$x+2=0$

Subtract 2 on both sides:

$x=-2$

Let's check:

$(f+g)(-2)$

$f(-2)+g(-2)$

$((-2)^2-2(-2))+(6(-2)+4)$

$(4+4)+(-12+4)$

$(8)+(-8)$

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0 was the desired output of $(f+g)(x)$ .

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2 years ago

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Lyrx [107]

Answer:

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Step-by-step explanation:

LOOK AT THE LESS THAN SIGN

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3 years ago

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gladu [14]

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3 years ago

What is ungrouping in 3rd grade math?

Sav [38]

Un grouping in 3rd grade maths can also be called subtracting

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2 years ago

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