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3 years ago

9a + 8 - 20-3-50 Answer

Mathematics

1 answer:

dem82 [27]3 years ago

5 0

Answer:

9a-65

Step-by-step explanation:

simply write 9a+(add the remaining numbers all together)

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In a right triangle, angle C measures 40°. The hypotenuse of the triangle is 10 inches long. What is the approximate length of t

Galina-37 [17]

Answer:

The cosine function is: adjacent/hypotenuse = cos (40). We know the hypotenuse length is 10, so the equation is now adjacent/10 = cos (40). Solving for adjacent length we get 7.7 inches.

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3 years ago

Baby Dill eats 18 ounces of baby food at every meal. Over the course of the week, Baby Dill ate 216 ounces of baby food. Find th

creativ13 [48]

A: 218 / 18 = 12 meals

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4 years ago

Read 2 more answers

Use the diagram to find the measurement of each of the angles

miv72 [106K]

Answer:

1. ∠LOQ = 80°

2. ∠LRQ = 40°

3. ∠LBQ = 40°

Step-by-step explanation:

The measure of a central angle (angle that goes to the center of the circle) is EQUAL to the ARC from which it is intercepted.
The measure of the angle that is on opposite side, on the circumference, of the circle is HALF of the ARC from which it is intercepted.

It is given that ARC QL has a measure of 80.

Central angle from ARC QL (with same measure) are angle LOQ only.
Opposite angles (half of measure of ARC QL) from ARC QL (on opposite side on circumference) are angles LRQ and LBQ.

1.

m∠LOQ: ∠LOQ is the central angle from ARC QL so it has SAME MEASURE.

∠LOQ = 80°

2.

m∠LRQ: ∠LRQ is the opposite angle from ARC QL so it is HALF of ARC QL.

∠LRQ = $\frac{1}{2}(80)=40$

∠LRQ = 40°

3.

m∠LBQ: ∠LBQ is also another opposite angle from ARC QL so it is HALF of ARC QL as well.

∠LBQ = $\frac{1}{2}(80)=40$

∠LBQ = 40°

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3 years ago

If a figure has been dilated by a scale factor of 1/3 which transformation could be used to prove the figures are similar using

Vlad [161]

Answer:

A translation because it can map one angle onto another since dilation preserve angle measures of triangles.

Step-by-step explanation:

In order to prove the two triangles by AA postulate, we must meet the conditions of the AA similarity postulate that says-

"Two triangles that have two congruent angles are similar".

So, we have to prove at least two corresponding angles of the given two triangles congruent.

One triangle is the dilation of the other. When we dilate a figure, the things that change are:

1. Lengths - Dilation changes the lengths of each side of the figure.

2. Size - Dilation changes the size of the figure.

When we dilate a figure, the things that do not change are:

1. Orientation - Dilation preserve orientation

2. Angles - Dilation preserves the interior angles of the figure.

So, the transformation that will preserve both orientation and angles will be used to prove triangles similarity using AA postulate.

A translation because it can map one angle onto another since dilation preserve angle measures of triangles.

A translation only moves the entire figure and thus we can overlap the vertices of the triangle and find whether the angles are congruent or not.

With the translation we will prove that other pair of angles of the triangles are congruent and thus the two triangles can be proved similar using the AA similarity postulate.

5 0

4 years ago

Read 2 more answers

Fred earned $22.50 in nine hours. how much did he earn after 4 hours? please show all your work

dusya [7]

I believe the answer is 10

22.50 divided by 9 to show how much for 1 hour. That is 2.5 so next 2.5 x 4 = 10

I don’t completely know if this is correct but I believe it is

6 0

3 years ago