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2 years ago

8n+?=0 plz solve i will mark brainliest

Mathematics

2 answers:

Ksivusya [100]2 years ago

7 0

Answer:

negative 8

Step-by-step explanation:

kolezko [41]2 years ago

4 0

It could be any multiple of eight, depending on the value of n.

If n = 8, then ? = 64

If n = 1, then ? = 8

and so on

Hope that helps!

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Need help with these two math questions

MaRussiya [10]

√3 x √5 = √15

7√15 - 2√15 = answer 5√15

simple

6² = 36

7² = 49

8² = 64

√64

8 0

2 years ago

Nikki used the calculations shown to determine whether a carton of 12 eggs or a carton of 18 eggs was the better buy. A carton o

Lemur [1.5K]

Given :

A carton of 12 eggs or a carton of 18 eggs was the better buy. A carton of 12 eggs cost $2.39, and a carton of 18 eggs cost $3.39. Unit price of the 12-egg carton = ($2.39)(12 eggs) = $28.68 per egg Unit price of the 18-egg carton = ($3.39)(18 eggs) = $61.02 per egg The 12-egg carton has the lower unit cost, so it is the better buy.

To Find :

What was her first error.

Solution :

Her first error is to find Unit price of egg in each carton.

To find, unit price we should divide total amount by number of units :

Unit price for carton of 12 eggs, $ (2.39)/12 = $0.199 .

Hence, this is the required solution.

4 0

2 years ago

A line passes through the points (4, 10) and (2,9). What is its equation in slope-intercept

Butoxors [25]

Answer:

y = 1/2x + 8

Step-by-step explanation:

y2 - y1 / x2 - x1

9 - 10 / 2 - 4

-1 / -2

= 1/2

y = 1/2x + b

10 = 1/2(4) + b

10 = 2 + b

8 = b

7 0

2 years ago

Draw fraction rectangles on dot paper to solve the problems.

juin [17]

Answer:

1) $\frac{7}{20}$

2) $1\frac{1}{12}$

3) $\frac{7}{8}$

Step-by-step explanation:

1) Given problem,

$\frac{3}{5}-\frac{1}{4}$

LCM(5,4) = 20,

$\frac{3}{5}=\frac{3\times 4}{5\times 4}=\frac{12}{20}$

$\frac{1}{4}=\frac{1\times 5}{4\times 5}=\frac{5}{20}$

$\implies \frac{3}{5}-\frac{1}{4}=\frac{12}{20}-\frac{5}{20}=\frac{7}{20}$

2) Given problem,

$\frac{5}{6}+\frac{1}{4}$

LCM(6, 4) = 12,

$\frac{5}{6}=\frac{5\times 2}{6\times 2}=\frac{10}{12}$

$\frac{1}{4}=\frac{1\times 3}{4\times 3}=\frac{3}{12}$

$\implies \frac{5}{6}+\frac{1}{4}=\frac{10}{12}+\frac{3}{12}=\frac{13}{12}=1\frac{1}{12}$

3) ∵ Pizza ate by Manny = $\frac{1}{4}$

Pizza ate by Frank = $\farc{5}{8}$

∴ Total pizza eaten = $\frac{1}{4}+\frac{5}{8}$

LCM(4, 8) = 8,

$\frac{1}{4}=\frac{2}{8}$

Thus, total pizza eaten = $\frac{2}{8}+\frac{5}{8}=\frac{7}{8}$

6 0

2 years ago

Show, using implicit differentiation, that any tangent line at a point P to a circle with center O is perpendicular to the radiu

kari74 [83]

Answer:

The tangent line to the point P(x0,y0) and the line OP are perpendicular

Step-by-step explanation:

To show that the tangent line to the point P(x0,y0) is perpendicular to the line OP, of the circle with center at 0(0,0), you first use implicit differentiation on the equation of a circle, as follow:

$x^2+y^2=r^2$ (1)