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Angelina_Jolie [31]
3 years ago
14

Simplify this expression (7x + 3) - (4x - 5 )

Mathematics
1 answer:
Masteriza [31]3 years ago
4 0

Answer:

3x+8

Step-by-step explanation:

(7x+3)-(4x-5)

1.Rewrite remove parenthesis

7x+3-4x+5

2. Collect like terms

7x-4x= 3x

5+3=8

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Need help with this stuck on another problem
Cerrena [4.2K]

just remove perenthesis

5 0
3 years ago
Plant B is 6 2/3 inches tall. and C is 4 4/15 inches tall. Complete the sentences and show your reasoning
artcher [175]

Answer:

Plant C is <u>0.64</u> times as tall as Plant B

Plant C is <u>2.4 inches</u> shorter than Plant B

Step-by-step explanation:

Plant B is 6 2/3 inches tall. Plant B is 20/3 inches tall.

Plant C 4 4/15 inches tall. Plant C is 64/15 inches tall.

a.) Plant C is shorter than Plant B = \frac{64}{15} \times \frac{1}{\frac{20}{3} }  = \frac{64}{15} \times\frac{3}{20}  = \frac{16}{25} = 0.64 times.

b.) Plant C is shorter than Plant B by = \frac{20}{3}  - \frac{64}{15}  = \frac{100}{15}  - \frac{64}{15}  = \frac{100 -64}{15}  = \frac{36}{15} = 2\frac{2}{5} = 2.4 inches

3 0
3 years ago
Ben is 6 feet tall. At a certain time of day, Ben's shadow appears on the ground to be 6 feet long. What is the angle of elevati
nevsk [136]

Step-by-step explanation:

let us consider the elevation of the sun is x

then

x=6×6

x=36

7 0
3 years ago
F is a polynomial of degree 6. f has a root of multiplicity
frutty [35]

Answer:

f(x) = 0.43 * (x - 3)^{2}  * (x-1)^{3}*(x + 10)

Step-by-step explanation:

We have a 6th degree polynomial  f(x)

r = 3 is a root of f with multiplicity 2

r = 1 is a root of f with multiplicity 3

f(-5) = -29721.6

f(-10) = 0

Then:  f(x) = a*((x -3)^2 ) * ((x - 1)^3)*(x + 10)

f(-5) = a *  (-8)^2 *  (-6)^3  *  (5)  =  -29,721.6

a* (64) * (-216)* 5 = -29,721.6

-a*69,120 = -29,721.6

a =  -29,721.6/-69,120

a =  0.43

so

f(x) = 0.43 * (x - 3)^{2}  * (x-1)^{3}*(x + 10)

4 0
3 years ago
A basketball player scored 24 points in 30 minutes. At this rate how many points will the basketball player be able to score in
MaRussiya [10]

Answer: 56

Step-by-step explanation:

24/30=0.8

0.8 x 70=56

5 0
3 years ago
Read 2 more answers
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