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3 years ago

Answer I’m confused

Mathematics

1 answer:

Ede4ka [16]3 years ago

7 0

Answer:

C neither

Step-by-step explanation:

you dont have 3 congruent sides or 2 congruent sides with an included angle

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What is the slant height x of the square pyramid? Enter your answer in the box, express your answer in radical form.

Nadya [2.5K]

<span> For this case we have a rectangle triangle where we know:
hypotenuse of the triangle.
Angle between the base of the triangle and the hypotenuse.
We want to find the height of the triangle.
For this, we use the following trigonometric relationship:
</span> $sine (60) = x / 8
$
<span> From here, we clear the value of x.
We have then:
</span> $x = 8 * sine (60)

x = 6.93 m$ <span>
Answer:
The inclined height of the pyramid is given by:
x = 6.93 m</span>

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3 years ago

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To solve 8,502 ÷ 7, in what place value should you start dividing?

vodomira [7]

I think thousands place

5 0

3 years ago

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Find the value of the term in the arithmetic sequence.

Vitek1552 [10]

<h3>Formula to fimd the 9th term:-</h3>

$\tt a_{n} = a_{1} + (n - 1)d$

<h3>Where,</h3>

$a_{n}$ is the Nth term
$a_{1}$ is the first term of sequence
$n$ is the term to be found
$d$ is the common difference between terms

$a_{1} = - 2$
$n = 9$
$d = 3$

<h3>Put the values,</h3>

$\tt a_{9} = - 2 + (9 - 1) \times 3$

$\tt a_{9} = - 2 + 8 \times 3$

$\tt a_{9} = - 2 + 24$

$\tt a_{9} = 22$

4 0

2 years ago

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Which expression correctly represents "eight times the difference of four and a number"?

il63 [147K]

Answer:

8(4-x)

Step-by-step explanation:

You're multiplying the difference of four and a number (4-x) by eight (8). So writing as an expression would look like 8(4-x).

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3 years ago

The ellipse with x-intercepts (2, 0) and (-2, 0); y-intercepts (0, 4) and (0, -4).

masya89 [10]

Answer:

$\dfrac{x^2}{4}+\dfrac{y^2}{16}=1$

Step-by-step explanation:

If the ellipse has its x-intercepts at points (2, 0) and (-2, 0) and y-intercepts at points (0, 4) and (0, -4), then its symmetric across the y-axis and across the x-axis.

Moreover,

$a=2\\ \\b=4$

The equation of such ellipse is

$\dfrac{x^2}{a^2}+\dfrac{y^2}{b^2}=1$

Hence, the equation of the ellipse is

$\dfrac{x^2}{2^2}+\dfrac{y^2}{4^2}=1\\ \\ \\\dfrac{x^2}{4}+\dfrac{y^2}{16}=1$

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3 years ago