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Monica [59]
3 years ago
11

HELP I BEGGGGggggggg

Mathematics
1 answer:
Masteriza [31]3 years ago
3 0

Answer:

c = 25m + 40

Step-by-step explanation:

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How many pairs of glasses can we make with the foil beads and how many foil beads will be left over ?
Dimas [21]

Answer:

I hate to break it, but you ain't giving any information or numbers

7 0
3 years ago
I need help with this word problem ASAP
Vsevolod [243]

Answer:

The road width is x = 10 m.

Step-by-step explanation:

A formula for the area of the horizontal rectangle is A1 = (x)(20 m).

A formula for the small rectangle on top of that is A2 = (x)(18 - x).

The total area of the new roadway is 280 m^2.

Summing up A1 and A2 and equating the result to 280 m^2, we get:

20x + 18x - x^2 = 280

Rewriting this in the standard quadratic form:

-x^2 + 38x - 280 = 0

Here the coefficients are a = -1, b = 38 and c = -280.

The discriminant is thus b^2 - 4ac, or:

38^2 - 4(-1)(-280) = 1444 - 4(280) = 324, or 18^2.

Thus, the roots (x-values) are:

      -38 ± 18

     -------------- = 28 and 10

            -2

Only the value x = 10 makes sense here, so we omit the other value (28).

The road width is x = 10 m.

x = ----------------------

7 0
3 years ago
Find the distance between the two points in simplest radical form.<br> (-2, 1) and (-8, 9)
Vika [28.1K]

Answer:

10

Step-by-step explanation:

d = √(x2 - x1)² + (y2 - y1)²

d = √(-8 - -2)² + (9 - 1)²  

d = √(-6)² + (8)²  

d = √(36) + (64)

d = √100

d = 10

3 0
3 years ago
Don't spam...<br><br>Step by step explaination needed...​
Anastasy [175]

Answer:

\:

(c) 3

Step-by-step explanation:

Given polynomial :

f(x) = 2x³–5x² + 5x

Let the number to be subtracted be n

(x is already in equation so, n is better)

since, 2x – 3 factor given

→

f ( \frac{3}{2} ) = 0

So,

2x {}^{3}  - 5x {}^{2}  + 5 {x}^{2}  - n

2x {}^{3}  - 5x {}^{2}  + 5x - n = 0 \\  \\ 2( \frac{3}{2} ) {}^{3}  - 5( \frac{3}{2} ) {}^{2}  + 5( \frac{3}{2} ) - n = 0 \\  \\ 2 \times  \frac{27}{8}  - 5 \times  \frac{9}{4}  + 5 \times  \frac{3}{2}  - n \:  = 0 \\  \\  \frac{27}{4}   -   \frac{45}{4}  +  \frac{15}{2}  -  \frac{n}{1}  = 0 \\  \\ 27 - 45 + 30 - 4n = 0 \\  \\  12 - 4n \:  = 0   \\ \\n =  \frac{ - 12}{ - 4}  \\  \\ n =  > 3

4 0
3 years ago
Read 2 more answers
a cup has both pens and pencils. 30% of the items in the cup are pens. if the cup is holding 40 items, how many of the items are
disa [49]

Answer:

  28

Step-by-step explanation:

70% of the 40 items are pencils.

 0.70 × 40 = 28

28 of the items are pencils.

3 0
3 years ago
Read 2 more answers
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