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3 years ago

I need help on this questionnn

Mathematics

2 answers:

zimovet [89]3 years ago

7 0

Answer:acute equilateral

Step-by-step explanation:

const2013 [10]3 years ago

3 0

Answer:

It's acute equilateral

Step-by-step explanation:

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(-6)(4) preform indicated operation

Tems11 [23]

Answer:

-24

Step-by-step explanation:

(-6)(4)

The indicated operation is multiplication

-24

5 0

3 years ago

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What is the area of this triangle ?

oee [108]

Answer:

Area of triangle is 9.88 units^2

Step-by-step explanation:

We need to find the area of triangle

Given E(5,1), F(0,4), D(0,8)

We will use formula:

$Area\,\,of\,\,triangle =\sqrt{s(s-a)(s-b)s-c)} \\where\,\, s = \frac{a+b+c}{2}$

We need to find the lengths of side DE, EF and FD

Length of side DE = a = $\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}$

Length of side DE = a = $=\sqrt{(5-0)^2+(1-8)^2}\\=\sqrt{(5)^2+(-7)^2}\\=\sqrt{25+49}\\=\sqrt{74}\\=8.60$

Length of side EF = b = $\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}$

Length of side EF = b = $=\sqrt{(0-5)^2+(4-1)^2}\\=\sqrt{(-5)^2+(3)^2}\\=\sqrt{25+9}\\=\sqrt{34}\\=5.8$

Length of side FD = c = $\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}$

Length of side FD = c = $=\sqrt{(0-0)^2+(8-4)^2}\\=\sqrt{(0)^2+(4)^2}\\=\sqrt{0+16}\\=\sqrt{16}\\=4$

so, a= 8.60, b= 5.8 and c = 4

s = a+b+c/2

s= 8.6+5.8+4/2

s= 9.2

Area of triangle= $=\sqrt{s(s-a)(s-b)s-c)}\\=\sqrt{9.2(9.2-8.6)(9.2-5.8)(9.2-4)}\\=\sqrt{9.2(0.6)(3.4)(5.2)}\\=\sqrt{97.5936}\\=9.88$

So, area of triangle is 9.88 units^2

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3 years ago

Hannah has $2 worth of dimes and quarters. She has a total of 17 dimes and quarters altogether. By following the steps below, de

sineoko [7]

Answer:

2 quarters and 15 dimes

Step-by-step explanation:

15 dimes = $1.50

2 quarters = $0.50

$1.50+$0.50=$2.00

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3 years ago

Solve -x/3 ≥ 5. x ≥ 15 x ≤ 15 x ≥ - 15 x ≤ - 15 Apex

Delicious77 [7]

Answer:

-x/3 ≥ 5

L.C.M= 3

3 × -x/3 ≥ 5 × 3

-x ≥ 15

-x/-1 ≥ 15/-1

x ≤ -15

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3 years ago

What is the LCM of 6, 12 and 15

Wewaii [24]

3 is the least common multiple

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3 years ago

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