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3 years ago

PLZ HELP 20 POINTS

Mathematics

2 answers:

katrin2010 [14]3 years ago

7 0

Can you tell us what the statement is and what we have to fill in please?

RUDIKE [14]3 years ago

4 0

I have seen this question come up once in a while and I promise you the answer is 4

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Whats The answer giving brainliest : )

Gekata [30.6K]

Answer:

Step-by-step explanation:

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3 years ago

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Sebastian solved the radical equation y + 1 = but did not check his solution. (y + 1)2 = y2 + 2y + 1 = –2y – 3 y2 + 4y + 4 = 0 (

Softa [21]

Answer:

There are no true solutions to the equation.

Step-by-step explanation:

The correct equation is

$y+1=\sqrt{-2y-3}$

Solve for y

squared both sides

$(y+1)^2=(-2y-3)$

$(y^2+2y+1)=(-2y-3)$

$y^2+2y+1+2y+3=0$

$y^2+4y+4=0$

$(y+2)(y+2)=0$

$y=-2$

Verify

substitute the value of y in the original expression

$-2+1=\sqrt{-2(-2)-3}$

$-1=1$ ----> is not true

therefore

There are no true solutions to the equation.

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3 years ago

Show two different ways to factor −4x −28.

vazorg [7]

Step-by-step explanation:

-4x - 28 = -4(x + 7) or 4(-x - 7)

Topic: Algebraic factorization

If you like to venture further, do check out my insta (learntionary) where I regularly post useful math tips! Thank you!

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3 years ago

A playground slide is 14.5 feet long with an 8.5-foot tall ladder. What is the measure of the angle that the slide makes with th

notka56 [123]

The slide and the ladder made a right angle triangle with the ground. The angle that the slide made with the ground is labeled as $x$ in the diagram below. We can use the trigonometry ratio to work out the size of the angle.

8.3 is the side opposite to the angle and 14.5 is the hypotenuse. We need to use the Sin ratio

$Sin(x)= \frac{opposite}{hypotenuse}$
$sin(x)= \frac{8.5}{14.5}$
$sin^{-1}( \frac{8.5}{14.5})=x$
$x=36$ ° to the nearest degree

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3 years ago

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Angie bought tickets for her and her friends to go to the movies

Viktor [21]

Answer:

8t+$6=$46

8t=$40

t=5 tickets

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3 years ago