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3 years ago

Help ! ASAP doing an exam

Mathematics

1 answer:

Alona [7]3 years ago

8 0

Answer:

ok ill explain if want after test

Step-by-step explanation:

angle 2 and 4 are 50

angle 1 and 3 are 130

angle 5 and 7 are 50

angle 8 and 5 are 130

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What is the solution of the inequality-0.4x - 1.2 > 0.8

strojnjashka [21]

Answer:

x<-5

Step-by-step explanation:

-0.4x>0.8+1.2

-0.4x>2

x<-5

3 0

3 years ago

What is the length of the side labeled x?

Scorpion4ik [409]

Answer:

AB = 42.15 units

Step-by-step explanation:

In triangle ABD,

By applying Cosine rule in this triangle,

cos(30)°= $\frac{\text{Adjacent side}}{\text{Hypotenuse}}$

$\frac{\sqrt{3} }{2}$ = $\frac{AD}{AB}$

$\frac{\sqrt{3}}{2}=\frac{AD}{47}$

AD = $\frac{47\sqrt{3}}{2}$

By applying tangent rule in ΔACD,

tan(44)° = $\frac{\text{Opposite side}}{\text{Adjacent side}}$

tan(44)° = $\frac{AD}{x}$

0.9657 = $\frac{\frac{47\sqrt{3}}{2}}{x}$

0.9657 = $\frac{47\sqrt{3}}{2x}$

x = $\frac{47\sqrt{3}}{2(0.9657)}$

x = 42.15

≈ 42.2 units

4 0

3 years ago

Find the equation of a line with the given points. (Put your answers in the form y = mx + b.) (7, 3) (3, 7)

igor_vitrenko [27]

By "inspection" you can write the equation as
.. x + y = 10
Then
.. y = -x +10 . . . . . . . . the desired form

8 0

3 years ago

Is Five times what number plus 10 equals 20

Natalka [10]

Answer:

Step-by-step explanation:

5*2=10

10+10=20

5*x+10=20

10-10=0

20-10=10

5*x=10

5/5=0

10/5=2

x=2

3 0

3 years ago

Read 2 more answers

Since it's 4 questions ill give yall 50 points to whoever answers. <

CaHeK987 [17]

Step-by-step Solutions:

Question 7:

√9
=> √3 × 3
=> 3

Question 8:

√64
=> √8 × 8
=> 8

Question 9:

√4
=> √2 × 2
=> 2

Question 10:

√144
=> √12 × 12
=> 12

6 0

3 years ago

Read 2 more answers