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IrinaK [193]
3 years ago
14

Please help!! please please

Mathematics
1 answer:
Leona [35]3 years ago
5 0
I honestly don'y know i'm really sorry.

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0.6 divided by 12.9 show all work
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Answer:

Step-by-step explanation:

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Complete the following statement of congruence: asap please
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MON=RTS which is A because they are congruent so you just do the same thing they did for the first triangle.
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A clay model of a new car is 7 in. Long. The actual car is 21 ft long. Part 1: What proportion can you use to find the scale use
Lapatulllka [165]

Answer:

3ft:1in

Step-by-step explanation:

Given the clay model of a new car = 7in

If the actual car is 21ft, first we will have to convert 21ft to inches

Ift = 12in

21ft = x

x = 21×12.

x = 252in

21ft = 252in

This means that the clay model (7in) has to be scaled up to 252in. This is known as enlargement.

To know the scale of the model, we will take the ratio of the actual car to the clay as shown

Scale = actual car model/clay car model

Scale = 252/7

Scale = 36/1

We can also use the exact units of both measurement used in question

Scale = 21ft/7in

Scale = 3ft/1in

Hence the scale of the model is 3ft:1in

8 0
4 years ago
X^4+2x^2−63 solve by factoring group
Harrizon [31]

The polynomial equation be x⁴ + 2x² - 63 then the factoring group exists  ( x² - 7) (x² + 9).

<h3>What is meant by factorization?</h3>

Factorization is the process of dividing a large number into smaller numbers that, when multiplied together, yield the original number. Factorization occurs when you divide a number into its factors or divisors.

Let the given polynomial equation be  x⁴ + 2x² - 63

By factoring the above polynomial equation, we get

Here the coefficient of the first term, x⁴, is 1.

The coefficient of the middle term, 2x², is 2.

The final term, "the constant," is -63.

To find -63 factors whose sum equals the middle term's coefficient, which is 2.

-63 + 1 = -62

-21 + 3 = -18

-9 + 7 = -2

-7 + 9 = 2

Split the middle term of the polynomial using the two factors found in step 2 above, -7 and 9 .

x⁴ - 7x² + 9x² - 63.

= ( x² - 7) (x² + 9)

∴ x⁴ + 2x² - 63 = ( x² - 7) (x² + 9) .

The polynomial equation be x⁴ + 2x² - 63 then the factoring group exists (x² - 7) (x² + 9).

To learn more about factorization refer to :

brainly.com/question/25829061

#SPJ1

3 0
2 years ago
27&lt; 3+5x+4<br><br> “With a step-by-step explanation be specific”
Nataly [62]

Answer:

27 < 3 + 5x + 4 \\ 27 < 7 + 5x \\ 27 - 7 < 5x \\ 20 < 5x \\5x > 20 \\ x >  \frac{20}{5}  \\  \boxed{x > 4}

<h3><u>x>4</u> is the right answer.</h3>
4 0
3 years ago
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