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4 years ago

How many points does it take to determine a line? A) two B) zero C)three D)one

Mathematics

1 answer:

yaroslaw [1]4 years ago

7 0

The answer is A, two points.

Any two distinct points in a plane determine a line, which has an equation determined by the coordinates of the points.

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(2,?) Is On the Line 6x- 7y = -9 find the other half of the coordinate

vesna_86 [32]

here, x = 2

putting the value of x in the equation we get:

6x-7y=-9

or, 6×2- 7×y=-9

or, 12- 7×y= -9

or, 7×y =-21

so, y = -3

3 0

3 years ago

The shadow of a tree measures 25 feet from its base. The angle of elevation to the Sun is 31º How tall is the tree? Round your a

grigory [225]

Answer: 15 feet

Step-by-step explanation:

Hi, since the situation forms a right triangle (see attachment) we have to apply the next trigonometric function.

Tan α = opposite side / adjacent side

Where α is the angle of elevation to the sun, , the opposite side (x) is the height of the tree, and the adjacent side is the length of the shadow.

Replacing with the values given:

Tan 31 = x /25

Tan 31 (25) =x

x = 15 feet

Feel free to ask for more if needed or if you did not understand something.

4 0

3 years ago

Help meeeeeeeeeeeeeee pls

Damm [24]

The answer is 1

hope i helped

4 0

3 years ago

Read 2 more answers

Simplify. 3725−−√−2825−−√+6325−−√ 457√ 7√ 257√ 857√

Andru [333]

Answer:

Option A.

Step-by-step explanation:

Consider the given problem is

$3\sqrt{\frac{7}{25}}-\sqrt{\frac{28}{25}}+\sqrt{\frac{63}{25}}$

Using the properties of radical expressions we get

$3\cdot \frac{\sqrt{7}}{\sqrt{25}}-\frac{\sqrt{28}}{\sqrt{25}}+\frac{\sqrt{63}}{\sqrt{25}}$ $[\because \sqrt{\frac{a}{b}}=\frac{\sqrt{a}}{\sqrt{b}}]$

$3\cdot \frac{\sqrt{7}}{\sqrt{25}}-\frac{\sqrt{4}\sqrt{7}}{\sqrt{25}}+\frac{\sqrt{9}\sqrt{7}}{\sqrt{25}}$ $[\because \sqrt{ab}=\sqrt{a}\sqrt{b}]$

$3\cdot \frac{\sqrt{7}}{5}-\frac{2\sqrt{7}}{5}+\frac{3\sqrt{7}}{5}$

Taking out common factors.

$\frac{\sqrt{7}}{5}(3-2+3)$

$\frac{\sqrt{7}}{5}(4)$

$\frac{4\sqrt{7}}{5}$

The simplified form of given expression is $\frac{4}{5}\sqrt{7}$

Therefore, the correct option is A.

4 0

3 years ago

Michelle planted tomatoes in her garden. She has four rows of tomatoes and each row has six tomatoes.

ankoles [38]

Answer:

Step-by-step explanation:

4 times 6 = 24

8 0

3 years ago

Read 2 more answers