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3 years ago

10

PLEASE HELP ITS DUE IN 10 MIN U GET POINTS

2 answers:

Harman [31]3 years ago

7 0

Answer:

50°

Step-by-step explanation:

In parallelogram ABCD,

AB is parallel to CD

angle BDC= angle ABD= 12°

similarly angle ADB= Angle CBD= 38°

angle ABC = 38+12= 50°

Jobisdone [24]3 years ago

5 0

Irssss i think it’s 50

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A pole that is 2.6 m tall casts a shadow that is 1.03 m long. At the same time, a nearby tower casts a shadow that is 46.25 m lo

photoshop1234 [79]

Answer:

Therefore the height of the tower is 116.75 m.

Step-by-step explanation:

Given that a pole that is 2.6 m tall casts a shadow that is 1.03 m long.

Here the height of a object directly proportional to the shadow. It means

Height of the object ∝ shadow

Height of the object= k.shadow

[k is the proportional constant.]

$\Rightarrow \frac{h}{s} =k$ [Height of object is denoted by h and shadow is denoted by s]

Then,

$\frac{h_1}{s_1} =k$ [h₁ is the height of the pole and s₁is the length of the shadow]

Again for the tower

$\frac{h_2}{s_2}=k$ [h₂ is the height of the tower and s₂ is the length of the shadow]

Therefore,

$\frac{h_1}{s_1}=\frac{h_2}{s_2} =k$

$\Rightarrow\frac{h_1}{s_1}=\frac{h_2}{s_2}$ ............(1)

Given $h_1 = 2.6 m$ , $s_1=1.03m$ and $s_2=46.25m$

Putting the value of $h_1,s_1$ and $s_2$ equation (1)

$\frac{2.6}{1.03}=\frac{h_2}{46.25}$

$\Rightarrow h_2 \times1.03= 2.6\times 46.25$ [cross multiplication]

$\Rightarrow h_2 = \frac{2.6\times 46.25}{1.03}$

$\Rightarrow h_2= 116.75$

Therefore the height of the tower is 116.75 m.

3 0

3 years ago

A person purchased 10 items to donate to a school. They bought backpacks that cost $25.75 each and notebooks that cost $4.25 eac

krek1111 [17]

Answer:

D

Step-by-step explanation:

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3 years ago

Subtract. 1.2 – (–7.8) A. 6.6 B. –6.6 C. 9 D. –9

levacccp [35]

The answer to this question would be C, 9. The reason for is cause you remove the parentheses then add the numbers 1.2 + 7.8=9.

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3 years ago

A line that includes the point (2, 3) has a slope of

grin007 [14]

Answer:

y-3=-1/3(x-2)

Step-by-step explanation:

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3 years ago

Given the equation:

Alisiya [41]

Answer:

x = 1 and x = $\frac{-4}{5}$

Step-by-step explanation:

In this equation, a=5, b=-1, c=-4.

Plug these into the quadratic formula:

x = $\frac{1+\sqrt{-1^{2}-(-4)(5)(-4) } }{2(5)}$ and x = $\frac{1-\sqrt{-1^{2}-(-4)(5)(-4) } }{2(5)}$

Now, simplify the equations:

x = $\frac{1+\sqrt{81} }{10}$ = $\frac{1+9}{10}$ = $\frac{10}{10}$ = 1

and

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5 0

4 years ago