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3 years ago

Plss answer Part A #1 abc . i will give brainliest. late answers accepted

Mathematics

1 answer:

kenny6666 [7]3 years ago

4 0

Answer:

a. (3x² - 2x - 5) units²

b. (x² - x) units²

c. (2x² - x - 5) units²

Step-by-step explanation:

a. Area of the frame = L*W

L = (x + 1) units

W = (3x - 5) units

Area of the frame = (x + 1)(3x - 5)

Apply distributive property

x(3x - 5) +1(3x - 5)

3x² - 5x + 3x - 5

Area of the frame = (3x² - 2x - 5) units²

b. Area of the picture = L*W

L = x units

W = (x - 1) units

Area of the picture = x(x - 1)

Apply distributive property

= x² - x

Area of picture = (x² - x) units²

c. Area of the frame that surrounds the picture = area of frame - area of picture

= (3x² - 2x - 5) - (x² - x)

= 3x² - 2x - 5 - x² + x (distributive property)

Add like terms

= 3x² - x² - 2x + x - 5

= 2x² - x - 5

Area of the frame that surrounds the picture = (2x² - x - 5) units²

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Help please and this time please put an explanation just don't only say the answer <br> thank you

coldgirl [10]

✽ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ✽

➷ T $\boxed{4}$ B $\boxed{24}$

✽ Ok, so B is the number of boys and T is the number of teachers.

➷ $t \div ( B + 18) = \frac{2}{21}$

$\frac{B}{18} = \frac{4}{3}$

✽ Then solve the second equation for B.

➷ $B = 24$

✽ Plug into the first equation to find T.

➷ $T \div (24 + 18) = \frac{2}{21}$

$T = 4$

✽

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ May ♡

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3 years ago

PLEASE HELP!!! <br> Solve the quadratic equation by completing the square.

kow [346]

The values of x in the quadratic equation using completing the square method are $x=-4 \pm \sqrt{5}$ .

Given information:

The quadratic equation is $x^2+8x+11=0$ .

It is required to factorize the given quadratic equation using completing the square method.

<h3>How to factorize a quadratic equation?</h3>

Use completing the square method to solve the equation as,

$x^2+8x+11=0\\(x)^2+2(x)(4)+4^2-4^2+11=0\\( (x)^2+2(x)(4)+4^2)-4^2+11=0\\(x+4)^2-16+11=0\\(x+4)^2=5\\(x+4)=\pm \sqrt{5} \\x=-4 \pm \sqrt{5}$

Therefore, the values of x in the quadratic equation using completing the square method are $x=-4 \pm \sqrt{5}$ .

For more details about quadratic equation, refer to the link:

brainly.com/question/2263981

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2 years ago

Solve these problems for me please! ASAP show all work!<br><br> 7.24 ÷ 7=?<br> 11.4 ÷ 19?

GalinKa [24]

7.24/7=1.04
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11.4/19= 0.6
https://www.calculatorsoup.com/calculators/math/longdivisiondecimals.php?dvsor=19&dvdnd=11.4&decimal...

Kinda hard to show work for second one so posted a link.

7 0

3 years ago

Which equations are equivalent to the expression below ? Check all that apply

taurus [48]

It looks like selections A and C are identical. (Neither is equivalent to 9^x.)

If B is supposed to be 3^(2x), it is equivalent to F and D and to the given expression.

Of course, D evaluates to 9^x, so is equivalent.

Choice E evaluates to 3^(x+2), which is not equivalent to 3^(2x).

The applicable choices appear to be

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4 years ago

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Answer:

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2 years ago

Plss answer Part A #1 abc . i will give brainliest. late answers accepted​

Plss answer Part A #1 abc . i will give brainliest. late answers accepted