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1 year ago

Please Help I Don't Undertand.

Mathematics

1 answer:

frozen [14]1 year ago

4 0

If triangles AMN and ABC are similar, then

AM/AB = AN/AC

AM/(AM + MB) = AN/(AN + NC)

Check if this is true:

AM/AB = 21/(21 + 9) = 21/30 = 7/10

AN/AC = 14/(14 + 6) = 14/20 = 7/10

The angle at vertex A is common to both of the triangles.

Then by the side-angle-side (SAS) similarity theorem, the triangles are indeed similar.

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Please help 100 points and will mark brainliest!!!!!!!!

xz_007 [3.2K]

Answer:

x>3, on a number line, first draw a circle over the number , if the sign has equal to (≥ or ≤), fill in the circle. If the sign does not have equal to (> or <), leave the circle unfilled in.

Step-by-step explanation:

7 0

2 years ago

If the cost of 819.73 for full cover insurance for a female and a male is 1192.64 what is the percentage?

irinina [24]

Answer:

68.7%

Step-by-step explanation:

If the cost of 819.73 for full cover insurance for a female and a male is 1192.64 what is the percentage?

The Percentage is calculated as:

819.73/1192.64 × 100

= 0.68732392004293 × 100

= 68.732392004 %

Approximately = 68.7%

Therefore, the percentage is 68.7%

7 0

3 years ago

Triangle MNP has vertices N(2, 2) and P(0, –2). The triangle is symmetric about the y-axis. What is the approximate measure of t

Evgesh-ka [11]

Point M of the triangle is (-2,2) to make triangle MNP as shown in the attached image

Triangle MNP has a base of 4 units and a height of 4 units. We can work out the angle x and angle y using trigonometry ratio

We use tan ratio to find both angles

$Tan (x) = \frac{opposite}{adjacent}$
$Tan(x)= \frac{4}{2}$
$Tan(x)=2$
$Tan^{-1}(2)=63.43494882$
$Angle x=63.43$

$Tan(y)= \frac{opposite}{adjacent}$
$Tan(y)= \frac{2}{4}$
$Tan^{-1}(0.5)=26.56505118$
$Angle y=26.6$

Angle MNP = Angle NMP = 63.43 degrees (this is based on the fact that the triangle is an isosceles triangle)

Angle MPN = 2×26.6 = 53.2 degrees (we multiply by 2 as angle y is only a half of angle MPN - as shown in the diagram)

3 0

2 years ago

Read 2 more answers

I need this asap ty:p

Anastasy [175]

Answer:

(a) x = -2y

Step-by-step explanation:

You can tell if an equation is a direct variation equation if it can be written in the format y = kx.

Note that there is no addition and subtraction in this equation.

Let's put these equations in the form y = kx.

(a) x = -2y

y = x/-2 → y = -1/2x
This is equivalent to multiplying x by -1/2, so this is an example of direct variation.

(b) x + 2y = 12

2y = 12 - x
y = 6 - 1/2x
This is not in the form y = kx since we are adding 6 to -1/2x. Therefore, this is NOT an example of direct variation.

-2y = -3x
y = 3/2x
This follows the format of y = kx, so it is an example of direct variation.

(d) 5x² + y = 0

y = -5x²
This is not in the form of y = kx, so it is NOT an example of direct variation.

(e) y = 0.3x + 1.6

1.6 is being added to 0.3x, so it is NOT an example of direct variation.

(f) y - 2 = x

y = x + 2
2 is being added to x, so it is NOT an example of direct variation.

The following equations are examples of direct variation:

x = -2y
3x - 2y = 0

7 0

2 years ago

Read 2 more answers

Evaluate the expression –0.4(3x – 2) + 2x+4/3 for x=4

fomenos

Answer:

-1.07

Step-by-step explanation:

–0.4(3x – 2) + 2x+4/3

–0.4(24 – 2) + 8+4/3

-9.6-0.8+8+1.33

-2.4+1.33

-1.07

8 0

3 years ago