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3 years ago

Can someone help me with the math problem -3 3/10+4 1/3=

Mathematics

2 answers:

ELEN [110]3 years ago

6 0

Answer:

31/30

Step-by-step explanation:

-3 3/10+4 1/3

-3 9/30+4 10/30

31/30

Bogdan [553]3 years ago

5 0

$-3 \frac{3}{10} + 4\frac{1}{3}$ is equal to 1.633

Solution:

Given that $-3 \frac{3}{10} + 4\frac{1}{3}$

Let us first convert the mixed fraction to proper fraction

$-3 \frac{3}{10} + 4\frac{1}{3} = \frac{-3 \times 10 + 3}{10} + \frac{3 \times 4 + 1}{3}$

$= \frac{-30 + 3}{10} + \frac{12 + 1}{3}\\\\= \frac{-27}{10} + \frac{13}{3}\\\\= -2.7 + 4.33 = 1.633$

Hence the value of given expression is 1.633

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Citrus2011 [14]

-40x=-10-20

-40x=-35

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2 years ago

A(x) = x( 48 - x) When is A(x) at its maximum? Explain or show how you know.

krek1111 [17]

Answer:

When X = 24

Step-by-step explanation:

Use derivative to locate the turning point.

48 - 2X = 0, => X = 24

4 0

2 years ago

Find g(x), where g(x) is the reflection across the y-axis of f(x)= –9|x–10|+1.

Gnom [1K]

Answer:

To reflect a graph, f(x) over the x-axis, you take -f(x).

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Step-by-step explanation:

5 0

2 years ago

Make b the subject of the formula <img src="https://tex.z-dn.net/?f=k%20%3D%20%20%5Cfrac%7Bbrt%7D%7Bv%20-%20b%7D%20" id="Tex

balu736 [363]

Answer:

b = $\frac{kv}{k+rt}$

Step-by-step explanation:

Given

k = $\frac{brt}{v-b}$ ← multiply both sides by (v - b)

k(v - b) = brt ← distribute left side

kv - kb = brt ( subtract brt from both sides )

kv - kb - brt = 0 ( subtract kv from both sides )

- kb - brt = - kv ( multiply through by - 1 to clear the negatives )

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5 0

2 years ago

n HP laser printer is advertised to print text documents at a speed of 18 ppm (pages per minute). The manufacturer tells you tha

Dominik [7]

Answer:

0.321 is the probability that their mean printing speed of the sample is greater than 17.99 ppm.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 17.39 ppm

Standard Deviation, σ = 4.25 ppm

Sample size = 11

We are given that the distribution of printing speed is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}$

P(printing speed of the sample is greater than 17.99 ppm.)

P(x > 17.99)

$P( x > 17.99) = P( z > \displaystyle\frac{17.99-17.39}{\frac{4.25}{\sqrt{11}}}) = P(z > 0.468229)\\\\P( z > 0.468229) = 1 - P(z < 0.468229)$

Calculating the value from the standard normal table we have,

$1 - 0.679 = 0321= 32.1\%\\P( x > 17.99) = 32.1\%$

Thus, 0.321 is the probability that their mean printing speed of the sample is greater than 17.99 ppm.

8 0

3 years ago