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wlad13 [49]
3 years ago
13

What is the simplified form of 5 - 4y + 2x - 3y - 2 + 5x?

Mathematics
1 answer:
leva [86]3 years ago
7 0
Combine like terms.

5-2=3

-4y-3y=-7y

2x+5x=7x

Put these combined values together:
3-7y+7x

Final answer: A
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Write the following in standard form:<br> Write<br> A = 4<br> B = 2<br> C = 7
bonufazy [111]

Answer:

4x + 2y = 7

Step-by-step explanation:

The standard form equation goes as follows: Ax + By = C

We know what A, B, and C is so all we need to do is fill them in.

7 0
2 years ago
Does someone mind helping me with this? Thank you!
zalisa [80]

\qquad\qquad\huge\underline{{\sf Answer}}

The given two polygons are similar to one another ~

Sides of the given polygons are in ratio of :

\qquad \sf  \dashrightarrow \: 28 : 4

to put in simple Ratio ~

\qquad \sf  \dashrightarrow \: 7: 1

So, the sides of the larger polygon are :

  • 4 × 7 = 28

  • 6 × 7 = 42

  • 3 × 7 = 21

  • 4 × 7 = 28

  • 7 × 7 = 49

  • 3 × 7 = 21

  • 3 × 7 = 21

  • 4 × 7 = 28

Now, to find the Perimeter of larger polygon ~ add the side length of all sides :

\qquad \sf  \dashrightarrow \:p = 28 + 42 + 21 + 28 + 49 + 21 + 21 + 28

\qquad \sf  \dashrightarrow \:238 \:  \: units

6 0
2 years ago
A thermometer is taken from a room where the temperature is 20°C to the outdoors, where the temperature is 3°C. After one minute
IrinaVladis [17]

Answer:

A. T=7.12°C; B. t=3.32min

Step-by-step explanation:

In order to find the answer we can use the Newton's law of cooling:

y(t)=y0e^{kt} where:

y0=initial temperature - room temperature

k=coefficients

t=time

Because the outdoors temperature is 3°C, the initial temperature is 20°C, and because the thermometer reads 11°C after 1min we have:

11=(20-3)e^{k*1}

ln(11/17)=k

-0.4353=k

A. Temperature after an extra minute.

y(2)=17e^{-0.4353*2}

y(2)=7.12 so the answer is 7.12°C

B. Time in order to read 4°C

4=17e^{-0.4353*t}

ln(4/17)/(-0.4353)=t}

3.32min=t

6 0
3 years ago
How do I answer this Question? It’s phythagoras theorem!
zhuklara [117]

Answer:

C = 11.18       D= 20

Step-by-step explanation:

Let's start with C

Square root both areas of the squares

\sqrt{25} =5

\sqrt{100}=10

Then use the Pythagoras Theorem: a^{2} +b^{2} =c^{2}

10^{2} +5^{2} =125

\sqrt{125} =11.18033989 = C

Moving on to D

Square root both areas of the squares

\sqrt{841} =29

\sqrt{441} =21

29 is the hypotenuse, we are trying to find the other leg, so:

29^{2} -21^{2} =400

\sqrt{400} =20 = D

8 0
3 years ago
Help with both please. show work
oee [108]

Answer:

1.  y = x + 7

Step-by-step explanation:

Find the slope

Choose two points and find the slope using rise/run

(1,8) (2,9)

9-8/2-1

1/1 = 1 = m (slope)

Find b using the slope and one point

m=1   (1,8)

8 = 1 (1) + b

8 = 1 + b

7 = b

Fill in m and b into y = mx + b

y = 1x + 7

8 0
2 years ago
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