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2 years ago

... help please :) i really do need the answers

Mathematics

2 answers:

Rom4ik [11]2 years ago

7 0

55 is the answer I just had this question

ELEN [110]2 years ago

4 0

Answer:

.55 since it's literally not anything else

Step-by-step explanation:

.55

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Match each scenario with the type of correlation it shows

Dafna1 [17]

Yellow line- no correlation.
Blue Line- Positive
Green line- negative
Srry if wrong pls brainless

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3 years ago

Simplify: x0 y-3 / x2 y-1

svetlana [45]

$\frac{x {}^{0}y {}^{ - 3} }{x {}^{2}y {}^{ - 1} } \\ = \frac{1y {}^{ - 3} }{ {x}^{2}y {}^{ - 1} } \\ = \frac{1 \times 1}{ {x}^{2} y {}^{2} } \\ \\ = \frac{1}{ {x}^{2}y {}^{2} }$

Step by Step Explanation:

Evaluate the power: Any non-zero expression raised to the power of 0 equals 1
Simplify: Simplify the expression
Calculate the product: Any expression multiplied by 1 remains the same.

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2 years ago

The graph of f ′ (x), the derivative of f of x, is continuous for all x and consists of five line segments as shown below. Given

Rom4ik [11]

$f'(x)\ge0$ for all $x$ in [-3, 0], so $f(x)$ is non-decreasing over this interval, and in particular we know right away that its minimum value must occur at $x=-3$ .

From the plot, it's clear that on [-3, 0] we have $f'(x)=-x$ . So

$f(x)=\displaystyle\int(-x)\,\mathrm dx=-\dfrac{x^2}2+C$

for some constant $C$ . Given that $f(0)=7$ , we find that

$7=-\dfrac{0^2}2+C\implies C=7$

so that on [-3, 0] we have

$f(x)=-\dfrac{x^2}2+7$

and

$f(-3)=\dfrac52=2.5$

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3 years ago

What is the highest common factor of 135 and 81

wolverine [178]

$135|3\\.\ 45|
3\\.\ 15|3\\.\ \ 5|5\\.\ \ 1|\\135=\fbox3\cdot\fbox3\cdot\fbox3\cdot5\\\\81|3\\27|3\\.\ 9|3\\.\ 3|3\\.\ 1|\\81=\fbox3\cdot\fbox3\cdot\fbox3\cdot3\\\\the\ highest\ common\ factor\ of\ 135\ and\ 81\\\\=\fbox3\cdot\fbox3\cdot\fbox3=\boxed{\boxed{27}}$

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3 years ago

Two figures are similar. One is 18 inches tall and the second is two feet tall.What is the scale factor. Not a multiple choice q

sladkih [1.3K]

Answer:

3:4

Step-by-step explanation:

Compare the heights: 18 in and 24 in.

Then find the scale factor through division: 18/24 = 3/4 or 3:4

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3 years ago