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3 years ago

A square pyramid has a base length of 7 meters and a slant height of 11 meters. what is the surface area

Mathematics

1 answer:

Alenkasestr [34]3 years ago

8 0

Answer:

77 meter2nd

Step-by-step explanation:

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The slope of a line is 2/3. What is the slope of a line that is perpendicular to this line? Type a numerical answer in the space

My name is Ann [436]

The slope perpendicular to 2/3, would be -3/2

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4 years ago

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Write a quadratic equation in standard form that has 5 3 and 7 3 as its roots. A) 9x2 − 36x + 35 = 0 B) 9x2 + 36x − 35 = 0 C) 9x

Serggg [28]

Answer:

Option A)

$9x^2 - 36x + 35 = 0$

Step-by-step explanation:

We are given the following in the question:

Roots of quadratic equation are:

$\alpha = \dfrac{5}{3}, \beta = \dfrac{7}{3}$

The sum of the roots and the product of the roots can be calculated as:

$\alpha + \beta = \dfrac{5+7}{3} = 4\\\\\alpha\beta = \dfrac{5}{3}\times \dfrac{7}{3} = \dfrac{5}{9}$

Standard form of quadratic equation:

$x^2-(\alpha + \beta)x+\alpha\beta = 0$

Putting values, we get,

$x^2 - 4x + \dfrac{35}{9} = 0\\\\9x^2 - 36x + 35 = 0$

is the required quadratic equation.

Thus, the correct answer is

Option A)

$9x^2 - 36x + 35 = 0$

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3 years ago

1. In which number does the 6 have a value that is one-tenth the value of the 6 In 34,7612

Anni [7]

Answer:

Step-by-step explanation:

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3 years ago

What is the value of x, given that PQ || BC? A. 10 B. 5 C. 7 D. 8

Brums [2.3K]

Answer:

Option B $x=5\ units$

Step-by-step explanation:

we know that

If PQ || BC, then triangles APQ and ABC are similar

Remember that

If two figures are similar, then the ratio of its corresponding sides is equal

$\frac{AP}{AB}=\frac{AQ}{AC}$

substitute the values

$\frac{9}{18+9}=\frac{x}{10+x}$

solve for x

$\frac{9}{27}=\frac{x}{10+x}\\ \\90+9x=27x\\ \\27x-9x=90\\ \\18x=90\\ \\x=5\ units$

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4 years ago

How do I round 3.8129 to 3 decimal places?Please help!!!

Scilla [17]

$3.8129\\\\Since\ the\ fourth\ place\ is\ 5\ or\ more\ (here\ it's\ 9),\\the\ third\ place\ is\ increased\ by\ 1.\\\\Answer:3.8129\approx3.813$

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3 years ago

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