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sashaice [31]
3 years ago
11

What is true about Marcus's work? Check all that

Mathematics
2 answers:
MrRissso [65]3 years ago
4 0

Answer: the 1,3,4

Step-by-step explanation:

Arada [10]3 years ago
4 0

Answer:

Options 1, 3, and 4

1.) Marcus should have substituted –10 for b, not 10.

3.)Marcus should have subtracted 4(1)(25) in the square root.

4.)This equation, when solved correctly, only has 1 real number solution.

Step-by-step explanation:

Just did it on Edgenuity :)

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Solve this equation for x. Round your answer to<br> the nearest hundredth.<br> 1 = In(x + 4)
KATRIN_1 [288]

Answer:

x ≈ - 1.28

Step-by-step explanation:

Using the rule of logarithms

log_{b} x = n ⇔ x = b^{n}

Given

ln(x + 4) = 1 , then

x + 4 = e^{1} ( subtract 4 from both sides )

x = e^{1} - 4 = - 1.28 ( to the nearest hundredth )

4 0
3 years ago
Help!!!
german

Answer:

625 cm3

Step-by-step explanation:

Formula V1 * P1 = V2 * P2

V1 = 450 cm3

P1 = 125 kPa

P2 = 90 kPa

V2 = ?

V2 = (V1 * P1) / P2

V2 = (450 cm3 * 125 kPa) / 90 kPa = 625 cm3

4 0
3 years ago
Can you organize collections of numbers into mathematical sets?
Bezzdna [24]
Yes by 10's and hundreds and ones place and even and odd. And pine and composite
6 0
3 years ago
17<br> Write<br> percentage.<br> 20
enot [183]

Answer:

\large \boxed{85\%}

Step-by-step explanation:

17/20

Multiply by the conjugate 5/5.

(17 × 5)/(20 × 5)

85/100

Apply rule : a/100 = a%

85/100 = 85%

5 0
3 years ago
I don't understand the substitution method?
liq [111]
It depends on what variable you are tying to solve for first. Say you are trying to solve for x first and then y on the first problem you wrote.

In substitution you solve one of the equations for example with
6x+2y=-10
2x+2y=-10
you solve 2x+2y=-10 for x

2x+2y=-10
-2y = -2y (what you do to one side of the = you do to the other)
2x=-10-2y (to get the variable by its self you divide the # and the variable)
/2=/2 (-10/2=-5 and -2y/2= -y or -1y, they are the same either way)
x=-5-y

now you put that in your original equation that you didn't solve for:
6(-5-y)+2y=-10 solve for that
-30-6y+2y=-10 combine like terms
-30-4y=-10 get the y alone and to do this you first get the -30 away from it
+30=+30
-4y=20 divide the -4 from each side
/-4=/-4 (20/-4=-5)
y=-5

now the equation you previously solved for x can be solved for y.
x=-5-y
x=-5-(-5) a minus parenthesis negative -(- gives you a positive
-5+5=0
x=0

and now we have solved the problem. x=0 and y=-5

6 0
3 years ago
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