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3 years ago

Sam must score greater than a 70 on his test to pass the class. Which inequality represents this?

2 answers:

8 0

greater than is >.

score greater than a 70 on his test to pass

so answer

x > 70

aivan3 [116]3 years ago

8 0

X>70
Because, greater than is >. Sams score is x,and it must be more than 70

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Y= x^3 + 8x^2 +5x work out the coordinates of the two turning points

aliya0001 [1]

Answer:

(-5, 50) and (-1/3, -0.815)

Step-by-step explanation:

The equation is;

y = x³ + 8x² + 5x

Now the turning point will occur at where dy/dx = 0.

Thus;

dy/dx = 3x² + 16x + 5

At dy/dx = 0, we have;

3x² + 16x + 5 = 0

From quadratic formula, we can get;

x = -5 or -⅓

Thus, let's find y at this points.

y = -5³ + 8(-5)² + 5(-5)

y = -125 + 200 - 25

y = 50

Also,at x = -⅓, we have;.

y = (-⅓)³ + 8(-⅓)² + 5(-⅓)

y = -1/27 + 8/9 - 5/3

y = -0.815

Thus,the coordinates of the turning points are;

(-5, 50) and (-1/3, -0.815)

6 0

3 years ago

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lisov135 [29]

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4 years ago

In Triangle JKL, ∠J is congruent to ∠L. Triangle J K L is shown. Ray L K extends beyond point K to form an exterior angle that i

Inga [223]

Answer:

m<L = $33.9^{o}$

Step-by-step explanation:

Triangle JKL is an isosceles triangle, given that <J ≅ <L. An isosceles triangle has two of its angles and sides to be equal.

The exterior angle formed = $67.8^{0}$

But,

<J + <L = $67.8^{0}$ (the sum of two opposite interior angles is equal to the exterior angle)

Let <J ≅ <L be represented by a, so that;

a + a = $67.8^{0}$

2a = $67.8^{0}$

a = $\frac{67.8^{o} }{2}$

= $33.9^{o}$

The measure of <L is m<L = $33.9^{o}$ (m<L =

Thus,

m<J ≅ m<L = $33.9^{o}$

8 0

3 years ago

Compare 4 x 10^6 and 2 x 10^7.

marishachu [46]

Answer:

C. $2\times 10^7$ is 5 times larger than $4\times 10^6$

Step-by-step explanation:

We want to compare $4\times 10^6$ and $2\times 10^7$ .

In order to determine how many times

$2\times 10^7$

is larger than

$4\times 10^6$ ,

we need to divide $2\times 10^7$ by $4\times 10^6$ to obtain;

$\frac{2\times 10^7}{4\times 10^6} =\frac{10}{2} =5$

Therefore we can see that;

$2\times 10^7$ is 5 times larger than $4\times 10^6$

The correct answer is C.

6 0

3 years ago

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zlopas [31]

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Dividing the change in the output value (22-10) by the input value (4-2) is equal to the rate of change 22-10/4-2=12/2=6/1

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