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Levart [38]
3 years ago
13

Lify 8 7x2-x+8 – 5x2 + 3x – 10

Mathematics
1 answer:
zalisa [80]3 years ago
6 0

Answer: (-5x2 - 8x + 7) - (5x2 - 4)

Step-by-step explanation:

= -5x2 - 8x + 7 - 5x2 + 4

= -5x2 - 5x2 - 8x + 7 + 4

= -10x2 – 8x + 11

Answer: = (-5x2 - 8x + 7) - (5x2 - 4)

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Jobisdone [24]

Answer:

cerecyegrguuupöchdgff

5 0
3 years ago
The final countdown ethan :)(the last questions :o:o)
chubhunter [2.5K]
1.) Number of Total Shirts = 460

In Figure 1, Red boxes represent "<span>Short Sleeve shirts" which is 3 in number whereas Blue boxes represent "Long Sleeve shirts".

1 box contains = 460/10 = 46

Number of Short sleeve shirts = 46 * 3 = 138 

<span>In short, Your Final Answer would be: 138
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2.) Number of Total Subscribers = 595

In Figure 2, Red boxes represent "<span>Regular subscribers" which is 8 in number whereas Blue boxes represent "Premium subscribers".

1 box contains = 595/17 = 35

Number of regular subscribers = 35 * 8 = 280

<span>In short, Your Final Answer would be: 280

3.) </span></span>Number of Total songs = 91

In Figure 3, Red boxes represent "<span>Liked Songs" which is 5 in number whereas Blue boxes represent "Disliked songs".

1 box contains = 91/7 = 13

Number of Liked Songs = 13 * 5 = 65

<span>In short, Your Final Answer would be: 65

</span></span>4.) Number of Total People = 180

In Figure 4, Red boxes represent "<span>Males" which is 4 in number whereas Blue boxes represent "Females".

1 box contains = 180/9 = 20

Number of Males = 20 * 4 = 80

<span>In short, Your Final Answer would be: 80
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Hope this helps!

3 0
2 years ago
Read 2 more answers
I really need help<br> If AD = 12 and AC = 4y-36, find the value of y
Mice21 [21]
Notice the tickmarks

AD = DC

now AC, which is the whole length from side to side,
is 4y-36
AD is 12, and since DC is the same as AD, so
DC = 12

AC = AD + DC, or 12 + 12
now, we know AC is also 4y-36

so \bf \begin{array}{cccccclllllll}&#10;AC&=&AD&+&DC\\&#10;\downarrow &=&\downarrow &&\downarrow \\&#10;4y-36&=&12&+&12\\&#10;&#10;\\ \quad \\ \quad \\&#10;4y-36&=&&24&#10;&#10;\end{array}

solve for "y"

8 0
3 years ago
Does anyone know how to do expressions and equasions
Deffense [45]

Answer:

an expression is numbers, symbols and operators (such as + and ×) grouped together that show the value of something and a equation is an equation says that two things are equal. (7+2=9) this is an equation

7 0
3 years ago
Compound interest of $1000 is invested at 10% compounded continuously, the future value s at any time t in years is given by s=1
crimeas [40]

Answer: 6.93 years

Step-by-step explanation:

Given

Rate of interest is r=10\%

Future value is given by s=1000e^{0.1t}

For the investment to double itself, i.e. s=2000

\Rightarrow 2000=1000e^{0.1t}\\\Rightarrow 2=e^{0.1t}\\\\\text{Taking log both sides}\\\\\Rightarrow \ln 2=0.1t\\\\\Rightarrow t=\dfrac{\ln 2}{0.1}\\\\\Rightarrow t=6.93\ \text{years}

It takes around 6.93 years to double the investment.

8 0
2 years ago
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