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3 years ago

Find the value of x?

Mathematics

2 answers:

Leni [432]3 years ago

8 0

Answer:

Step-by-step explanation:

Viktor [21]3 years ago

7 0

Answer:

x = 15

Step-by-step explanation:

We know that sum of interior angles of a triangle is 180°, so;

(60) + (60) + (8x - 60) = 180

120 + 8x - 60 = 180

60 + 8x = 180

8x = 120

x = 15

Hope this helps!

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Find the real numbers x and y that make the equation true (5-2i)-7=x-(3-yi)

marin [14]

Answer:

x=1 and y=-2

Step-by-step explanation:

5-2i-7=-2-2i

x-(3-yi)=x-3+yi

we write this equation -2 - 2i = (x-3) +yi

so -2=x-3 and -2i=yi

+3 +3 :i :i

1=x -2= y

so x=1 and y= -2

3 0

4 years ago

Q. Find the sum of interior angle of the given polygon. Work out the measure of the missing angle. *

SpyIntel [72]

Step-by-step explanation:

Number of sides of the given polygon, n =5

Sum of interior angles =( n-2)180°

=( 5 - 2)180°

= 3*180°

= 540°

Missing angle, x = 540°- (100°+105°+110°+145°)

= 540°- 460°

= 80°

4 0

3 years ago

The diagram shows a right-angled triangle.

olga nikolaevna [1]

Answer:

h = 9.87 cm

Step-by-step explanation:

Given that,

Base, b = 8 cm

Height = h

Angle, $\theta=51^{\circ}$

We need to find the value of h. We can use trigonometry to find h.

$\tan\theta=\dfrac{\text{Perpendicular}}{\text{Base}}\\\\\tan(51)=\dfrac{h}{8}\\\\h=\tan(51)\times 8\\\\h=9.87\ cm$

So, the height of the triangle is 9.87 cm.

7 0

3 years ago

Can someone help please?

Marina CMI [18]

Answer:

g(7) = 16

Step-by-step explanation:

When evaluating piecewise-defined functions, the first step is to determine which domain the value of the independent variable falls into. Then the associated function is evaluated in the usual way.

For x=7, the applicable domain is (2, ∞). This means the applicable function is ...

g(x) = (x +1)(x -5)

For x=7, this is ...

g(7) = (7 +1)(7 -5) = (8)(2)

g(7) = 16

6 0

2 years ago

One large submarine sandwiches is divided equally among four people how much of the sandwich did each person receive

wlad13 [49]

Each person received one quarter, which can be written as 1/4 or 0.25.

6 0

4 years ago