3 years ago

Please help me again!

Mathematics

1 answer:

nignag [31]3 years ago

7 0

Answer:

144

Step-by-step explanation:

First subtract 180 from 20% of 180.

180 - (20/100 x 180) = 180-36 = 144

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PLEASE ANSWER!!

s344n2d4d5 [400]

D
${x}^{2} + 2xy \\ { ( - 3)}^{2} + 2( - 3)(5) \\ 9 + 2( - 15) \\ 9 + ( - 30) \\ - 21$

7 0

3 years ago

Find the value of x

Paladinen [302]

$\qquad \qquad \bf \huge\star \: \: \large{ \underline{Answer} } \huge \: \: \star$

x = 12°

$\textsf{ \underline{\underline{Steps to solve the problem} }:}$

$\qquad❖ \: \sf \:2x + 6 + 5x + 90 = 180$

[ by linear pair ]

$\qquad❖ \: \sf \:7x + 6 = 180 - 90$

$\qquad❖ \: \sf \:7x + 6 = 90$

$\qquad❖ \: \sf \:7x = 90 - 6$

$\qquad❖ \: \sf \:7x = 84$

$\qquad❖ \: \sf \:x = 84 \div 7$

$\qquad❖ \: \sf \:x = 12$

$\qquad \large \sf {Conclusion} :$

$\qquad❖ \: \sf \:x = 12 \degree$

7 0

2 years ago

In a video game, a bird is flung on a sling shot and follows a parabolic path. The path of the bird can be modeled by the equati

umka21 [38]

9514 1404 393

Answer:

3.61 seconds

Step-by-step explanation:

The bird starts 50 feet in the air, so will come down to a height of 40 feet after 3.61 seconds.

We want to solve h = 40.

40 = -16t^2 +55t +50

16t^2 -55t -10 = 0

t = (55 +√(55^2 -4(16)(-10)))/(2(16)) = (55 + √3665)/32 ≈ 3.61060

The bird will be 40 ft above the ground the first time after about 3.61 seconds.

8 0

3 years ago

I know the answer is 324 but can someone tell me step by step how to solve it?

love history [14]

Do what is in brackets first, then the multiplication.

5 0

3 years ago

4. Seven times the difference of a number k and five is twenty-onel

laila [671]

Answer:

k = 8

Step-by-step explanation:

7(k - 5) = 21

k - 5 = 3

k = 8

Hope this helps!

4 0

3 years ago