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zhuklara [117]
3 years ago
6

Express the product of 2x^2+6x-8 and x+3 in standard form

Mathematics
1 answer:
Arisa [49]3 years ago
4 0

Answer:

2 x^ 2 + 7 x − 5

Step-by-step explanation:

2x^(2)+6x-8+x+3 and then write in standard form and came up with 2 x^ 2 + 7 x − 5.

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Log5 (x squared - 9) = 0
andreev551 [17]

Answer:

x=3,\:x=-3

Step-by-step explanation:

Given the equation

\log _{10}\left(5\right)\left(x^2-9\right)=0

Divide both sides by \log _{10}\left(5\right)

\frac{\log _{10}\left(5\right)\left(x^2-9\right)}{\log _{10}\left(5\right)}=\frac{0}{\log _{10}\left(5\right)}

Simplify

x^2-9=0

Add 9 to both sides

x^2-9+9=0+9

Simplifying

x^2=9

\mathrm{For\:}x^2=f\left(a\right)\mathrm{\:the\:solutions\:are\:}x=\sqrt{f\left(a\right)},\:\:-\sqrt{f\left(a\right)}

x=\sqrt{9},\:x=-\sqrt{9}

as

\sqrt{9}\:=3

-\sqrt{9}=-3

Therefore,

x=3,\:x=-3

3 0
3 years ago
Solve the following system of equations graphically on the set of axes below.<br> y=x+8<br> y=−2x−1
love history [14]
This makes sense because every point on the gold line is a solution to the equation
y
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2
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y=
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1
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x+3start color #e07d10, y, equals, start fraction, 1, divided by, 2, end fraction, x, plus, 3, end color #e07d10, and every point on the green line is a solution to
y
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x
+
1
y=x+1start color #0d923f, y, equals, x, plus, 1, end color. So, the only point that's a solution to both equations is the point of intersection

6 0
3 years ago
A scuba diver used the expression below to describe his position in relation to sea level.
Ipatiy [6.2K]
2 + (-20) + 8.....when sea level is 0.

starting on a platform 2 ft above sea level....so it is 2
dive down 20 ft....so this is below sea level...so it is -20
rise 8 ft...so it is 8

so ur answer is : 2nd answer choice
6 0
3 years ago
Read 2 more answers
Two beakers plus their contents have a mass of 180.4 grams. The total mass of the contents is 56.8 grams. Write and solve an equ
Anika [276]
I don't know if I am right but I think this is the answer:
If we write beaker with x and content with y
then y=56.8/2=28.4   this is the content of one beaker
so there are two beakers:
2x+28.4=180.4
2x=180.4-28.4
2x=152/2
x=76   
6 0
3 years ago
It says find the measure of each angle indicated
Kobotan [32]

Answer:

110 = x

Step-by-step explanation:

the ? and 40º have to sum to 150º because angle d is an exterior angle

6 0
3 years ago
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