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In-s [12.5K]
3 years ago
13

Help easy math question!!!

Mathematics
2 answers:
aleksandrvk [35]3 years ago
7 0

Answer:

16 feet

Step-by-step explanation:

This ladder and building creates a right triangle with 34 as the hypotenuse and 30 as a side. the Pythagorean theorem says that a^2 + b^2 = c^2 so 900 + b^2 = 1156. b^2 = 256, square root both sides and you get b = 16

aksik [14]3 years ago
3 0

Answer:

16 feet

Step-by-step explanation:

use Pythagorean theorem

a^2 + b^2 = c^2

a^2 + 30^2 = 34^2

a^2 + 900 = 1156

move 900 to the right to leave the a variable by itself

a^2 = 256

take the square root of both sides

a = 16

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F the measure of ∠BAD = 80°, what is the measure of ∠BCD?
SIZIF [17.4K]

Answer:

Option D.) 100 \textdegree is correct.

Step-by-step explanation:

In a quadrilateral, ABCD, opposite angles are supplementary.

\angle BCD + \angle BAD  = 180\textdegree

therefore \angle BCD  = 180\textdegree - \angle BAD = 180\textdegree - 80\textdegree  = 100 \textdegree

therefore option D.) 100 \textdegree is correct.

6 0
3 years ago
Read 2 more answers
Can somebody help me please ..
musickatia [10]

Answer: Red

Step-by-step explanation:

The y intercept is -2 so its either green or red

the slope is positive so its red

7 0
3 years ago
What are the measures of two complementary angles if the difference in their measures is 18?
saw5 [17]
Complementary angles = 90°
x= angle 1
(90-x)= angle 2

Subtract the two angles to get the difference between them (18°).

(90-x) - x= 18
combine like terms

90 - 2x= 18
subtract 90 from both sides

-2x= -72
divide both sides by -2

x= 36° angle 1


Substitute answer in to find angle 2:
=90 - x
=90 - 36
=54° angle 2

Hope this helps! :)

3 0
3 years ago
Help me solve for the right triangle
AleksAgata [21]

Answers:

B = 50

a = 10.9

c = 17.0

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

Explanation:

This is a right triangle, so the acute angles are complementary, meaning they add to 90

B+40 = 90

B+40-40 = 90-40

B = 50

Also, because this is a right triangle, we can use trig ratios to compute the missing sides

tan(angle) = opposite/adjacent

tan(40) = a/13

a = 13*tan(40)

a = 10.908

a = 10.9

cos(angle) = adjacent/hypotenuse

cos(40) = 13/c

c*cos(40) = 13

c = 13/cos(40)

c = 17.0

note: make sure your calculator is in degree mode

7 0
3 years ago
Solve x2 - x - 5/2 = 0 using the quadratic formula.
stich3 [128]

Answer:

x= 1±\sqrt{11} over 2

6 0
3 years ago
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