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3 years ago

I need help with this math question(picture included)

Mathematics

2 answers:

Art [367]3 years ago

7 0

A. 12:23 pm
The time that is shown is 9:25
2 hrs and 48 minutes forward would be 12:23

sattari [20]3 years ago

4 0

Answer: Your answer should be 12:23

Step-by-step explanation: on the clock the time is 2:25. You simply subtract 2:48 and 2:25. 48-25=23 and the twos cancel out but instead of putting zero you put 12 since your going backwards two on the clock. Hope it helps!!!

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What is the distance around a triangle that has sides measuring 21/8 feet, 31/2 feet and 21/2 feet?

sleet_krkn [62]

Add all of the sides together. Make sure to use a common denominator because you are adding fractions. Don't forget your unit label (feet)
$\frac{21}{8}$ + $\frac{31}{2}$ + $\frac{21}{2}$
$\frac{21}{8}$ + $\frac{124}{8}$ + $\frac{84}{8}$
$\frac{229}{8}$ feet

5 0

3 years ago

E) Write

leva [86]

Answer:

bueno se factoriza el primer miembro de la ecuacion y despejamos a cero cada uno de los factores por la cual podría ser que si sea una equivalencia

4 0

3 years ago

At the beginning of the year, Mr. and Mrs. Smith's portfolio is made up of $200 cash, stocks, with value of $236,000, and bonds

mart [117]

Answer:

4.797% of total return

Step-by-step explanation:

In this case, first, let's gather the data:

Beggining of the year:

200 + 236,000 + 163,000 = 399,200$

End of the year:

200 + 250,000 + 159,000 = 409,200$

This means that between the beggining and the end of the year, Mr Smith only had a gain of 10,000$.

To get the final return, we need to add this gain to the dividens and interest which is:

10,000 + 5,000 + 4,150 = 19,150$

So, the total return would be the percentage between this gaining and the innitial amount:

% = 19,150 / 399,200 * 100

% = 4.797%

And this is the total return.

7 0

3 years ago

Given the relation (2,3), (4,7), (6,11), (x,3), which of the following values of x will make the relation function

Elan Coil [88]

As you said, (x,3) = (2,3)
So x = 2

Thank you very much.

5 0

3 years ago

Find the measure indicated. Assume that the lines which appear to be tangent are tangent. PART 3

ludmilkaskok [199]

I'll do problems 13 and 14 to get you started.

=====================================================

Problem 13

<h3>Answer: 32 degrees</h3>

-----------------------

Explanation:

Refer to the diagram below for problem 13. Since BD is a tangent of the circle, this means angle ABD is 90 degrees, and furthermore x+y = 90. This solves to y = 90-x.

If we focus on triangle ABC, then we can add the interior angles and set the sum equal to 180

A+B+C = 180

z+y+y = 180

z+2y = 180

z+2(90-x) = 180 .... plug in y = 90-x

z+180-2x = 180

z-2x = 180-180

z-2x = 0

z = 2x

We'll use this later.

Now move onto triangle ABD. This is a right triangle due to angle ABD being 90 degrees. The acute angles z and 26 are complementary, meaning they add to 90. So,

z+26 = 90

z = 90-26

z = 64

Now plug this into z = 2x and solve for x

z = 2x

64 = 2x

2x = 64

x = 64/2

x = 32

=====================================================

Problem 14

<h3>Answer: 31 degrees</h3>

-----------------------

Explanation:

Refer to the image shown below for problem 14. Like before, I've added various labels to it to help find the angle we're after (the red angle x).

Note how I've drawn a dashed line from point A to point D. This splits up quadrilateral ABCD into two triangles ABD and ACD. These triangles can be shown to be congruent using the HL (hypotenuse leg) theorem.

The congruent triangles also implies that angle DBC and angle BCD are the same measure (both are shown in green as the variable y).

Focus on triangle BCD. It has interior angles of: y, y and 62. Add them up, set the sum equal to 180.

y+y+62 = 180

2y+62 = 180

2y = 180-62

2y = 118

y = 118/2

y = 59

As the image attachment mentions, the angles x and y add to 90 degrees. This is because angle ABD is 90 degrees, due to segment BD being tangent to the circle. So x+y = 90 leads to x = 90-y, and therefore,

x = 90-y

x = 90-59

x = 31

Side note: it is not a coincidence that we ended up with half of the value of 62.

3 0

3 years ago