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3 years ago

Help pleaseeeeeeeeeeseeeeeeeeeeww

Mathematics

2 answers:

Sedbober [7]3 years ago

7 0

Answer:

Step-by-step explanation:

The interior angles of triangles always add up to 180. That means that you can just add 64 to 90, which equals 154. Then subtract 154 from 180, which then equals 26.

Hope that this helps!

Tema [17]3 years ago

6 0

Answer:

Step-by-step explanation:

Given Angles=90° and 64°

We know that in a triangle

$\boxed{\sf Sum\:of\:angles=180°}$

$\rm \rightharpoonup \: 90 + 64 + x = 180 \\ \rm \rightharpoonup \: 154 + x = 180 \\ \rm \rightharpoonup \: x = 180 - 154 \\ \rm \rightharpoonup \: x = 26$

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Katen [24]

Answer: 4

Step-by-step explanation:

6 0

3 years ago

A rectangle is 20 meters long and 20 meters wide. If the length is increased by 10% and the width is decreased by 10%, what is t

Solnce55 [7]

Consider that the initial length and width of the rectangle are given as,

$\begin{gathered} l=20 \\ b=20 \end{gathered}$

After the length is increased by 10%, the new length (L) of the rectangle is calculated as,

$\begin{gathered} L=(1+\frac{10}{100})\cdot l \\ L=(\frac{110}{100})\cdot20 \\ L=22 \end{gathered}$

After the width is decreased by 10%, the new width (B) of the rectangle is calculated as,

$\begin{gathered} B=(1-\frac{10}{100})\cdot b \\ B=(\frac{90}{100})\cdot20 \\ B=18 \end{gathered}$

Then the area (A) of the new rectangle is calculated as,

$\begin{gathered} A=L\times B \\ A=22\times18 \\ A=396 \end{gathered}$

Thus, the new area of the rectangle is 396 square meters.

7 0

1 year ago

From her window 5m above the ground, Sherri spots a turtle on the ground at a 34 degree angle of depression. To the nearest tent

Thepotemich [5.8K]

Let y be the distance from the turtle to the base of the building.

tan (34) = 5/y
y = 5 ÷ cos(34)
y = 7.4m

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Answer: The distance is 7.4 meters (Answer A)
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3 0

4 years ago

Put the following equation of a line into slope-intercept form, simplifying all

Brilliant_brown [7]

Answer:

y = -x - 4

General Formulas and Concepts:

Pre-Algebra

Equality Properties

Algebra I

Slope-Intercept Form: y = mx + b

m - slope
b - y-intercept

Step-by-step explanation:

Step 1: Define

x + y = -4

Step 2: Rewrite

Find slope-intercept form

Subtract x on both sides: y = -x - 4

8 0

3 years ago

What is the answer to the problem 2/3x-40=5/6(x+36)

miss Akunina [59]

2/3x-40=5/6(x+36)

multiply each side by 6 to get rid of the fraction

6* 2/3x- 6*40=6*5/6(x+36)

4x -240 = 5(x+36)

distribute

4x-240 = 5x +180

subtract 4x from each side

-240 = x +180

subtract 180 from each side

-420 =x

5 0

3 years ago