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2 years ago

I could really use a hand

Mathematics

2 answers:

bagirrra123 [75]2 years ago

7 0

Answer:

-5a2+10a

Step-by-step explanation:

distribute

-5a(a-2)

-5a2+ 10

Novosadov [1.4K]2 years ago

4 0

Answer : -5a² + 10a

It was way easy ikr ~w~

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Hello! Could you please help with these? It was due quite a long time ago. I have a D in this class and need to get my grades up

Digiron [165]

Answer:

16. $y=7x$

17. $y=0.5x$

18. $y=3x$

19. $y=2x$

Step-by-step explanation:

Equation is $y=kx$ where k is a constant of proportionality.

16.

$\frac{y}{x}=\frac{10.5}{1.5}=\frac{14}{2}=\frac{24.5}{3.5}=\frac{35}{5}=7$

So, equation is $y=7x$

17.

$\frac{y}{x}=\frac{1}{2}=\frac{2}{4}=\frac{2.5}{5}=\frac{3.5}{7}=\frac{1}{2}=0.5$

Equation is $y=0.5x$

18.

$\frac{y}{x}=\frac{6}{2}=\frac{9}{3}=\frac{15}{5}=\frac{18}{6}=3$

Equation is $y=3x$

19.

$\frac{y}{x}=\frac{4}{2}=\frac{8}{4}=\frac{14}{7}=\frac{18}{9}=2$

Equation is $y=2x$

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3 years ago

Consider the equation a(4−x)=−3x+b. What values of a and b make the solution of the equation x=−5?

erica [24]

Answer:

Step-by-step explanation:

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3 years ago

Please answer right awat

likoan [24]

<u>Answer:</u>

The correct answer option is 0.2.

<u>Step-by-step explanation:</u>

We are given that there are 3 red marbles and 3 green marbles in an opaque bag.

If two marbles are chosen one after one without replacement, we are to find the probability of getting both green marbles.

P (1st green marble) = $\frac { 3 } { 6 }$

P (2nd green marble) = $\frac { 2 } { 5 }$

P (both green marbles) = $\frac { 3 } { 6 } \times \frac { 2 } { 5 }$ = 0.2

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3 years ago

A rectangular piece of land is 73/3 meter long and 61/4 meter wide.Find it's perimeter. Please solve it

Strike441 [17]

Answer:

49 1/6 meters

Step-by-step explanation:

P = 2(73/3) + 2(61/4)

= 146/3 + 61/2

= 48 2/3 + 30 1/2

= 48 4/6 + 30 3/6

= 48 + 7/6

= 48 + 1 1/6

= 49 1/6

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3 years ago

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What must you do if the base is not a triangle or rectangle?

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Answer:

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