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Taya2010 [7]
2 years ago
13

What is the area of the entire triangle if the altitude is a perpendicular

Mathematics
1 answer:
kifflom [539]2 years ago
5 0

Answer:

60cm^2

Step-by-step explanation:

use Pythagoras' theorem to find the height (attached)

24/2 = 12

h=5cm

are of a triangle = base x height /2

24 x 5 / 2 = 120/2 = 60

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What is the measure of <br> A. Cannot be determined <br> B. 74<br> C. 16<br> D. 32
Levart [38]
The answer would be D. 32

Why? The triangle in the problem is an isosceles triangle. That means the two legs of the triangle are equal and the angle opposite to the equal legs are also equal. 

Therefore, angle C is also 74°. 

The sum of the interior angles of a triangle is equal to 180°.
Thus, 
      180° = ∡A + ∡B + ∡C
      180° = 74° + ∡B + 74°
      180° = 148° + ∡B
        ∡B = 180° - 148°
        ∡B = 32°
3 0
3 years ago
What kind of decimal is 0.05? How do you know?
solniwko [45]

Answer:

0.05 is a terminating decimal

Step-by-step explanation:

0.05 is a terminating decimal because it has finite digits.

3 0
2 years ago
Read 2 more answers
How can you check to see if a value of x is a zero of the polynomial
Mila [183]

Answer:

  substitute that value for x in the polynomial and see if it evaluates to zero

Step-by-step explanation:

A "zero" of a polynomial is a value of the polynomial's variable that make the expression become zero when it is evaluated. As an almost trivial example, consider the polynomial x-3. The value x = 3 is a zero because substituting that value for x makes the expression evaluate as zero.

  3 -3 = 0

___

Evaluating polynomials can be done different ways. Straight substitution for the variable is one way. Using synthetic division by x-a (where "a" is the value of interest) is another way. This latter method is completely equivalent to rewriting the polynomial to Horner form for evaluation.

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In the attachment, Horner Form is shown at the bottom.

6 0
3 years ago
Solve for x in the diagram below
andre [41]

Answer:

x= 20

Step-by-step explanation:

The sum of the three angles is 90 degrees

x+2x+x+10 = 90

Combine like terms

4x+10 = 90

Subtract 10

4x+10-10 = 90-10

4x= 80

Divide by 4

4x/4=80/4

x = 20

3 0
3 years ago
Davis Electronics manufactures a certain type of radio that requires 18 working resistors per radio. If one out of 22 resistors
REY [17]

Since One Radio in Davis Electronics requires 18 working resistors, then 2,145 radios will require 18\times2145=38610 resistors.

Now we know that one out of 22 resistors is defective. This means that the number of non defective or perfect resistors in a set of 22 resistors is 21.

So, obviously, if we pick a set of 40,370 resistors then the set of working resistors we will get is 40370\times \frac{21}{22} =38535.

As can be clearly seen from the above calculations the required amount of working resistors is 38610 and the amount of working calculators available to us is 38535.

Thus, since the required amount of working resistors is greater than the amount of working resistors available, 40,370 resistors are not enough to assemble 2,145 radios.

7 0
3 years ago
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