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3 years ago

NEED HELP FAST!!! 25 POINTS!

Mathematics

1 answer:

Yuki888 [10]3 years ago

5 0

Answer:

0.55

Step-by-step explanation:

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tyler swims at constant speed, 5 meters every 4 seconds. how long does it take him to swim 114 meters?

zysi [14]

28.5 seconds

cuz 114 ÷ 4 = 28.5 = 28.5 × 4 = 28.5

hope it will help u

3 0

3 years ago

Read 2 more answers

Please help!!!!!!!!!!!!!!!!

____ [38]

Answer:

(i) x° = 28°

(ii) y° = 104°

(iii) z° = 76°

Step-by-step explanation:

x° is an alternate interior angle where transversal PQ crosses the parallel lines, so it has the same measure as the one marked 28°.

x° = 28°

The base angles of isosceles triangle PQR are both z°, so we must have ...

z° +z° +28° = 180° . . . . . . . . . sum of angles in a triangle

z° = (180° -28°)/2 = 152°/2 . . . solve for z

z° = 76°

y° and z° are a linear pair, so ...

y° = 180° -76°

y° = 104°

5 0

2 years ago

Use vertical multiplication to find the product of:

Rom4ik [11]

Answer:

$x^6+x^4+4x^3-2x^2-x+3$

Step-by-step explanation:

$x^3+2x+3$

$\times(x^3-x+1)$

---------------------------------

First step multiply your terms in your first expression just to the 1 in the second expression like so:

$x^3+2x+3$

$\times(x^3-x+1)$

---------------------------------

$x^3+2x+3$ Anything times 1 is that anything.

That is, $(x^3+2x+3) \cdot 1=x^3+2x+3$ .

Now we are going to take the top expression and multiply it to the -x in the second expression. $-x(x^3+2x+3)=-x^4-2x^2-3x$ . We are going to put this product right under our previous product.

$x^3+2x+3$

$\times(x^3-x+1)$

---------------------------------

$x^3+2x+3$

$-x^4-2x^2-3x$

We still have one more multiplication but before we do that I'm going to put some 0 place holders in and get my like terms lined up for the later addition:

$x^3+2x+3$

$\times(x^3-x+1)$

---------------------------------

$0x^4+x^3+0x^2+2x+3$

$-x^4+0x^3-2x^2-3x+0$

Now for the last multiplication, we are going to take the top expression and multiply it to x^3 giving us $x^3(x^3+2x+3)=x^6+2x^4+3x^3$ . (I'm going to put this product underneath our other 2 products):