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3 years ago

What is the measurement of the angle shown below? A. 120 B. 60 C. 30 D. 180

Mathematics

1 answer:

mrs_skeptik [129]3 years ago

5 0

Answer:

120°

Hope it helped you

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Solve the following quadratic equations by any method. The solutions are:

Nataly_w [17]

Answer:

Option C .

Step-by-step explanation:

We would like to solve the below quadratic equation ,

$\longrightarrow f(x) = x^2-12x +32$

Step 1 : Equate f(x) with 0 :-

$\longrightarrow f(x) = 0\\$

$\longrightarrow x^2-12x + 32=0$

Step 2 : Factorise the RHS :-

$\longrightarrow x^2-8x - 4x +32=0\\$

$\longrightarrow x(x-8)-4(x-8)=0\\$

$\longrightarrow (x-8)(x-4)=0\\$

Step 3 : Equate each factor with 0 :-

$\longrightarrow x - 8 = 0\\ \qquad x -4=0$

$\longrightarrow x = 8 \qquad x = 4$

$\longrightarrow \underline{\underline{\boldsymbol{ x = 8,4}}}$

Hence option C is correct .

8 0

2 years ago

Round to the nearest thousand 5.2182

steposvetlana [31]

Answer:

5.218

Step-by-step explanation:

5 or more, you add one. Four or less, you change it to zero.

6 0

3 years ago

What is the solution to the equation below?

hram777 [196]

Answer:

$\large\boxed{A)\ x=-4}$

Step-by-step explanation:

$\dfrac{x}{4}=\dfrac{x+1}{3}\qquad\text{cross multiply}\\\\3x=4(x+1)\qquad\text{use the distributive property}\\\\3x=4x+4\qquad\text{subtract}\ 4x\ \text{from both sides}\\\\-x=4\qquad\text{change the signs}\\\\x=-4$

4 0

3 years ago

1. The spinner shown has six congruent sections.

kondaur [170]

Answer:

Step-by-step explanation:

The probability of obtaining a 3 is

P(3) = $\frac{1}{6}$

Then after 30 spins the predicted number of times it should land on 3 is

30 × $\frac{1}{6}$ = 5

8 0

2 years ago

If a shape has a scale factor of 1/2 applied to it, then to get the new area, I should multiply the old area by

zaharov [31]

Then, since the area of the figure is halved, you would multiply the area of the figure by 1/2 as well.

7 0

2 years ago