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Nastasia [14]
3 years ago
10

I need some help with this problem

Mathematics
1 answer:
Contact [7]3 years ago
4 0
For a 45-45-90 triangle if the sides rae x then the the hytponuse is x√2
(x is the missing side)

5. 10=x√2
10/√2=x
rationalize denom, times top and bottom by √2
10√2/2=x
5√2=x=XY

6. 12√2=YZ

7.
7√2=XZ

8.
7*2=14=XZ


for 30-60-90
the side oposite the 30 deg is x
side oposite 60 is x√3
side oposite right angle is 2x
hyptonuse is oposite right angle
20=2x
10=x=shorter leg
shorter leg is 10 units
the hyptonuse


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Can someone help me do this with working pls
ycow [4]
∵ the two triangles are congruent

AB / AD = BC / DE
8/4 = 6/ DE
DE = 6 x 3 ÷ 8 = 3 cm
4 0
3 years ago
How many states were added in the US between 1795 and 1855
Stels [109]
There were 16 states added. 
Tennessee, Ohio, Louisiana, Indiana, Mississippi, Illinois, Alabama, Maine, 
Missouri, Arkansas, Michigan, Florida, Texas, Wisconsin, and California

7 0
3 years ago
Fill in the blank.<br><br> 7.95x10^7 = [ ? ]x 10^6
skelet666 [1.2K]

Answer:

79.5

Step-by-step explanation:

10^7 = 10^6 * 10

then 10*7.95 = 79.5

7 0
3 years ago
Jika sin x = p, dengan x tumpul, maka cos(x + 60) =​
Novay_Z [31]

Menjawab:

[(√1-p²) -3√p] / 2

Penjelasan langkah demi langkah:

Dari identitas trigonometri, pemuaiannya benar:

Cos (A + B) = cosAcosB-sinAsinB

Menerapkan ini dalam memperluas cos (x + 60).

cos (x + 60) = cosxcos60 - sinxsin60

Jika sinx = p = berlawanan / sisi miring

opp = p, hyp = 1

adj² = 1²-p²

adj = √1-p²

Cos (x) = adj / hyp = √1-p² / 1

Cos (x) = √1-p²

Cos60 = 1/2 dan sin60 = √3 / 2

Mengganti nilai-nilai ini ke dalam rumus

cos (x + 60) = cosxcos60 - sinxsin60

cos (x + 60) = √1-p² (1/2) - p (√3 / 2)

cos (x + 60) = (√1-p²) / 2 - √3p / 2

Temukan KPK tersebut

cos (x + 60) = [(√1-p²) -3√p] / 2

Oleh karena itu cos (x + 60) = [(√1-p²) -3√p] / 2

5 0
3 years ago
AHHHH I CANT FIGURE THIS OUT HELP PLEASE
bixtya [17]

Answer:

I think the answer is 19.

4 0
3 years ago
Read 2 more answers
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