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3 years ago

Which equation can be used to find the area of the blue triangle?

Mathematics

1 answer:

tamaranim1 [39]3 years ago

5 0

Use the equation A=(1/2)bh

Replace b with 7
Replace h with 12

A=(1/2)(7)(12)
A=(1/2)(84)
A=42

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How many strings of eight uppercase English letters are there if no letter can be repeated?

lorasvet [3.4K]

26*25*24*23*22*21*20*19 which is 62,990,928,000 strings.

3 0

3 years ago

He length of a rectangle is 7 ft more than twice the width, and the area of the rectangle is 99 ft2 . find the dimensions of the

inysia [295]

Let the width be x

Length= x+7

Area=lw

99=(x+7)(x)
99=x²+7x
0=x²+7x-99
x= -14.04 or x=7.04

Since a length cannot be negative, the width is 7.04 ft and the length (7.04+7)=14.07 ft

Hope I helped :)

8 0

3 years ago

A 228 B 328 C 488 D 572

Aleksandr [31]

Answer:

G 328 ft

Step-by-step explanation:

$\cos(angleBAC) = \frac{AB}{AC}$

$\cos(55°) = \frac{AB}{400}$

AB = 229.431 ft

AB² + BC² = AC²

229.431² + h² = 400²

h = 327.659 ft ≈ 328 ft

HOPE THIS HELPS AND HAVE A NICE DAY <3

7 0

2 years ago

Given log6=0.778,find log36.

8090 [49]

Answer:

We know that

1 ) log a^n = n log a

Now ,

log 6 = 0.7782 ----( 1 )

log 36 = log 6²

= 2 log 6

= 2 × 0.7782

= 1.5564

7 0

3 years ago

This is khan and I have 10 more problem academy. Some help please?

LenKa [72]

Answer:

67 degrees

Step-by-step explanation:

the shape is a tryangle so it will have the same angle measurements, just make sure you look if it has the slash next to the letter or not in the future

Hope this helps girly!!

7 0

4 years ago

Read 2 more answers