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3 years ago

PLEASE HELP now I really need to know

Mathematics

2 answers:

Leona [35]3 years ago

6 0

Answer:

Step-by-step explanation:

-2.5 + 5n - 1.5n

-2.5 + 3.5n

Option B is the correct answer

Anna11 [10]3 years ago

3 0

Answer:

Step-by-step explanation:

so first you got to solve the expression so -2.5(-1-2n)-1.5

−2.5(1−2n)−1.5n

Use the distributive property to multiply −2.5 by 1−2n.

−2.5+5n−1.5n

Combine 5n and −1.5n to get 3.5n.

your answer is −2.5+3.5n

if this is wrong then probably

solve the other expressions to see if u get the same answer

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A little help please

Dominik [7]

Answer: it’s 2, x = 2

Step-by-step explanation:

Hopes this helps !!!!

6 0

3 years ago

ASAP! 70 points! Yan has already finished 3/4 of the 45 math problems he was assigned today. Each math problem took him 1 and 4/

siniylev [52]

I would help but Can u add a pic or something for more understanding

7 0

3 years ago

In the graph below, Point A represents Owen's house, Point B represents David's house and Point C represents the school. Who liv

ycow [4]

Answer:

• David

• 4 miles

Explanation:

In the graph:

The given locations are:

• Owen's House, A(11,3)

• David's House, B(15,13)

• School, C(3,18)

We determine both Owen's and David's distance from the school using the distance formula.

$Distance=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Owen's distance from school (AC)

$\begin{gathered} AC=\sqrt[]{(3-11)^2+(18-3)^2} \\ =\sqrt[]{(-8)^2+(15)^2} \\ =\sqrt[]{64+225} \\ =\sqrt[]{289} \\ AC=17\text{ miles} \end{gathered}$

David's distance from school (BC)

$\begin{gathered} BC=\sqrt[]{(3-15)^2+(18-13)^2} \\ =\sqrt[]{(-12)^2+(5)^2} \\ =\sqrt[]{144+25} \\ =\sqrt[]{169} \\ BC=13\text{ miles} \end{gathered}$

We see from the calculations that David lives closer to the school, and by 4 miles.

The graph below is attached for further understanding:

5 0

1 year ago

In which case is it possible to create exactly one triangle with the given measures?

avanturin [10]

Choices "a" and "c" will form triangles

6 0

3 years ago

4-2 1/4 <br> as a fraction !!!<br> ill mark !!<br> have a good day !!

noname [10]

Answer:

3/4

Step-by-step explanation:

it's for sure 3/4!!!!!

7 0

3 years ago

PLEASE HELP now I really need to know​

PLEASE HELP now I really need to know