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2 years ago

11

Solve the variables with reasons

1 answer:

hammer [34]2 years ago

5 0

This shape is a quadrilateral.
All angles in a quadrilateral add up to 360 degrees.

There is two right angles- right angles measure 90 degrees.
90 + 90 = 180
You are given the the angle 56 so add that to 180.
56 + 180 = 236

To find x, we subtract 236 from 360.
360 - 236 = 124

x = 124 degrees

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Consider the rectangle enlargement. Pls answer the three questions I will mark brainliest!!

Alenkasestr [34]

Answer:

Perimeter of the original Rectangle is

2(4.5+4.3)=2×8.8= <u>17.6</u><u> </u><u>mm</u>

Side length of the enlarged rectangle is

$\frac{4.5}{4.3} = \frac{24.3}{x} \\ x = \frac{24.3 \times 4.3}{4.5} \\ \boxed{x = 23.22 \: mm}$

Perimeter of the enlarged rectangle

2(24.3+23.22)= 2×47.52= <u>95.04 mm</u>

7 0

3 years ago

Which expression is equivalent to 3a2 + 6a + 5a2?

Vaselesa [24]

$\begin{gathered} 3a^2+6a+5a^2 \\ \text{collect like terms} \\ 3a^2+5a^2+6a \\ 8a^2+6a \end{gathered}$

4 0

1 year ago

Find the vertex of the parabola?

aniked [119]

The parabola vertex is B. (2,2)

Explanation in photo provided.

7 0

3 years ago

Find the vertex and zeros of the following function f(x)=x^2-6x-7

elena-s [515]

Try this solution:

Step-by-step explanation:

1) for zeros of the function: x²-6x-7=0; ⇒ x₁=7; x₂= -1.

2) for the vertex of the function: x₀= -b/2a, where a;b;c - numbers from ax²+bx+c=0 (from x²-6x-7=0).

x₀=6/2=3;

y₀= (4ac-b²)/4a; ⇒ y₀= -16.

It means, the coordinates of the vertex are (3;-16).

6 0

3 years ago

Plss HELPP I neeed help on this question

Ganezh [65]

Answer: 180 degrees

Step-by-step explanation:

The measure of the arc of a semicircle is 180 degrees.

4 0

2 years ago