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Sphinxa [80]
3 years ago
9

What is the slope of y = -5+4x?​

Mathematics
1 answer:
snow_lady [41]3 years ago
5 0

Answer:

4

Step-by-step explanation:

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Please help me with this question :c
Ray Of Light [21]

Answer:

49/81

Step-by-step explanation:

(7/9)^2 (Square both the numerator and denominator)

(7^2)/(9^2)

49/81

4 0
3 years ago
A rectangular room measures 20 m long and 15 m wide. Work out the measurer for a scale drawing of the room using a scale of 1 cm
jonny [76]
20 / 2 = 10
15 / 2 = 7.5

10cm by 7.5cm

Hope this helps
8 0
3 years ago
Tyrod needs at least $820 to buy the computer he wants. He has already saved $330. He earns $50 per lawn that he cuts. What is t
Ksju [112]

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

The equation representing the given statement is ~

  • 50x + 330 \geqslant 820

The least number of lawns that he can cut and buy the computer is 10 lawns ~

\large \boxed{ \mathfrak{Step\:\: By\:\:Step\:\:Explanation}}

Total savings should be greater or equal to $ 820 in order to buy the computer,

And his total savinga is equal to ~

Money he saved + money got from cutting lawns.

let's assume the lawns cut by Tyrod be x,

Money earned by cutting lawns is equal to

  • total number of lawns cut × $50

  • 50x

total savings is equal to ~

  • 330 + 50x

hence,

  • 50x + 330 \geqslant 820

by solving for " x (number of lawns cut) " we get ~

  • 50x  \geqslant 820 - 330

  • 50x \geqslant 490

  • x  \geqslant 490 \div 50

  • x \geqslant 9.8

Hence, the least number of lawns he has to cut is the number that is greater than 9.8, which is

  • 10

6 0
2 years ago
A Demolition ball weigths 2 tons . what is the weigtht in ounces?also what is a demolition ball?
kkurt [141]

Answer:

  64,000 oz

Step-by-step explanation:

A demolition (wrecking) ball is a relatively large dense mass, often spherical, typically swung from a crane, used to demolish buildings or other structures.

We assume you want to convert from a US short ton (2000 pounds) to Avoirdupois ounces (16 ounces per pound).

Then your ball's weight is ...

  (2 tons)(2000 lb/ton)(16 oz/lb) = 64,000 oz

3 0
3 years ago
50 POINTS !!!!! HomeWorker Helperer please
Tcecarenko [31]

Answer:

1)     - 2 / (cos x + sinx)^2.

Step-by-step explanation:

1) I assume you want the derivative of (cos x - sin x) / ( cos x + sin x).

y'  =  (cosx + sinx)( -sinx - cosx) - (cosx - sinx)(-sinx + cosx)

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

                                 (cosx + sinx)^2

=  -sinxcosx - cos^2x - sin^2x - sinxcosx - (-sinxcosx+cos^2x+sin^2x-sinxcosx

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

                                     (cosx + sinx)^2

=     -2sinxcosx - 1  - ( -2sinxcosx   + 1 )   /     (cosx + sinx)^2

=      -2sinxcosx - 1  - ( -2sinxcosx   + 1 )   /     (cosx + sinx)^2

=       - 2 / (cos x + sinx)^2.

3 0
3 years ago
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