4 years ago

Mrs. Anderson is giving a test

Mathematics

2 answers:

Radda [10]4 years ago

7 0

Answer:

Step-by-step explanation:

Gnesinka [82]4 years ago

7 0

Answer:

Step-by-step explanation:

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Of the 450 students in the 6th grade at Graceland middle school, 75% ride the bus to school. How many 6th grade students to not

DIA [1.3K]

Answer:

112 or 113

Step-by-step explanation:

75%=0.75

450*0.75=337.5

450-337.5=112.5

Or if 75% ride then 25% do not ride the bus.

450*0.25=112.5

Presumably you would round to 113

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4 years ago

Which number is greater, 89 or 12.577? How do you know?

Savatey [412]

Answer:

The answer's B.

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3 years ago

Determine which point is the solution to the given system.

KatRina [158]

Answer:

Step-by-step explanation:

We equate both the y's and solve for x algebraically:

$-\frac{4}{7}x+16=-\frac{2}{7}x+12\\16-12=-\frac{2}{7}x+\frac{4}{7}x\\4=\frac{2}{7}x\\x=\frac{4}{\frac{2}{7}}\\x=14$

Now taking the value x= 14 and putting it in the 1st equation would give us y:

$y=-\frac{4}{7}x+16\\y=-\frac{4}{7}(14)+16\\y=8$

Hence the solution is (14,8), answer is D

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4 years ago

Finding an Indefinite Integral dx/x(lnx^2)^3

Y_Kistochka [10]

Step-by-step explanation:

Firstly, we'll try to simplify the integrand. By hint 1, we see that:

$\ln(x^2) = 2\ln(x)$

Simplifying the integrand gives us:

$\frac{1}{8}\left(\frac{1}{x(\ln(x))^3}\right)$

Next, by hint 2, we observe that:

$\frac{d}{dx}\left(\ln(x)\right) = \frac{1}{x}$

So this tells us to make the substitution: $u = \ln(x)$

Doing so gives us:

$\int \frac{dx}{x(ln(x^2))^3} = \int \frac{du}{8u^3}$ , which should be trivial.

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4 years ago

A figure is shown with the given dimensions. What is the area, in square feet of the figure?

gogolik [260]

Answer:

area of the figure=1/2×(10+6)×3

=24 square feet

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3 years ago