3 years ago

How do I find x (area of rectangle & trapezium?

1 answer:

5 0

Rectangle Formula: a = lw (Area = Length x Width)

Trapezium: A= a+b/2h (Area = Area + Base / 2 x h)

I hope this helps. :)

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What is the solution to this equation? x-8=15 A)x=13 B)x=17 C)x=7 D) x=23

Blababa [14]

Hi there! :)

Answer:

x=23

*The answer must have a positive sign.*

Step-by-step explanation:

This lesson it's about addition property of equality.

First, you add by 8 from both sides of an equation.

$x-8+8=15+8$

And then, you add by the numbers. Simplify and solve.

$15+8=23$

Final answer: → $x=23$

Hope this helps!

Thanks!

-Charlie

Have a great day!

3 0

3 years ago

3 .912+s=5.313 evaluate

taurus [48]

Answer:

s= 1.401

Subtract 5.313 from 3.912 :D

3 0

2 years ago

How tall is a building that casts a 78-ft shadow when the angle of elevation of the sun is 30 degrees?

Marta_Voda [28]

Answer: $45.03\ ft$

Step-by-step explanation:

Given

The length of the shadow is 78 ft

the angle of elevation is $\theta =30^{\circ}$

Suppose the height of the building is $h$

From the figure, we can write

$\tan 30^{\circ}=\dfrac{h}{78}\\\\h=78\tan 30^{\circ}\\\\h=45.03\ ft$

The height of the building is 45.03 ft

8 0

2 years ago

elena55 [62]

Answer:

C. 0.300 s.

11 + x

Step-by-step explanation:

brainest plz

4 0

3 years ago

Read 2 more answers

Determinants and matrix <img src="https://tex.z-dn.net/?f=%20%7C%20%5Cfrac%7B7%7D%7B4%7D%20%5C%20%5Cfrac%7B9%7D%7B3%7D%20%20

zavuch27 [327]

<h2>>> Answer </h2>

_________

$\ \:$

$\sf{| \frac{7}{4} \frac{9}{3} | = a}$

$\sf \: |a| = ad - bc$

$\sf\: |a| = (7 \times 3) - (9 \times 4)$

$\sf \: |a| = 21 - 36$

$\sf \: |a| = \bold{ \blue{ - 15}}$

3 0

3 years ago

Read 2 more answers