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2 years ago

Vocabulary Check Write the definition of each. 5. bar graph 6. scale

1 answer:

4 0

Bar chart definition: a diagram in which the numerical values of variables are represented by the height or length of lines or rectangles of equal width.

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What is system of equations for (6,5)

worty [1.4K]

Answer:

no clue

Step-by-step explanation:

4 0

3 years ago

The chef has 250 children to feed. If he feeds 50 children an hour, how many children will he still need to feed in 2 hours?

Alborosie

The answer is 100 bc u got to put it into a proportion

7 0

3 years ago

Evaluate the integral using integration by parts with the indicated choices of u and dv. (Use C for the constant of integration.

trasher [3.6K]

Answer:

$\frac{xe^{7x}}{7} + \frac{e^{7x}}{49}$

Step-by-step explanation:

Given the integral equation

$\int\limits{xe^{7x}} \, dx \\$

According to integration by part;

$\int\limits {u} \, dv = uv + \int\limits {v} \, du$

u = x, dv = e^7x

du/dx = 1

du = dx

$v = \int\limits {e^{7x}} \, dx \\v = e^7x/7$

Substitute the given values into the formula;

$\int\limits {xe^{7x}} \, dx = x(e^{7x}/7) + \int\limits ({e^{7x}/7}) \, dx\\\int\limits {xe^{7x}} \, dx = \frac{xe^{7x}}{7} + \frac{e^{7x}}{7*7} \\\int\limits {xe^{7x}} \, dx = \frac{xe^{7x}}{7} + \frac{e^{7x}}{49}$

3 0

3 years ago

How many minutes in a day

Inessa [10]

If an hour has 60 minutes and a day has 24 hours , there are 60 times 24 in a day

60*24 = 1440

There are 1440 minutes in a day !

I hope that's help !

5 0

3 years ago

Which of the following is a solution of x^2 - 2x = -8?

Zina [86]

X^2-2x=-8 add 1 to both sides

x^2-2x+1=-7 now the left side is a perfect square

(x-1)^2=-7 take the square root of both sides

x-1=±√-7 add 1 to both sides

x=1±√-7 which is

x=1±i√7 so

x=1+i√7 and 1-i√7

6 0

3 years ago