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3 years ago

2. Triangle ABC and triangle EFD ARE ?PLEASE HELP

Mathematics

1 answer:

ad-work [718]3 years ago

3 0

Answer:

similar SAS

Step-by-step explanation:

because the angle c has the angle c and sides are cb,ba .

because the angle d has the angle d and slide are df, Fe

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Help Asap 39 points pic below

mestny [16]

The answer is B! Hopefully this helps a lot ......GOOD LUCK

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3 years ago

Find the sum of 0.2126 and 0.7145 correct to 3 significant figures

Afina-wow [57]

Answer:

0.927

Step-by-step explanation:

add then round the last digit (it doesnt matter if it is a decimal number or not).

3 0

2 years ago

Divide:5.52 x 1031.2 x 105Write your answer in scientific notation. For example, you'd enter 2.3*10^4 for 2.3 x 104

IrinaK [193]

The question can be solved as follows:

$\frac{5.52\times10^3}{1.2\times10^5}=\frac{5.52}{1.2}\times10^{-2}=4.6\times10^{-2}$

Hence the value of the given expression in scientific notation is expressed as:

$\frac{5.52\times10^3}{1.2\times10^5}=4.6\times10^{-2}$

8 0

1 year ago

Limited time . 10 points

AfilCa [17]

Answer:

Therefore the value of x is

$x=1\pm\sqrt{19}i$

Step-by-step explanation:

Given:

$x^{2}+20=2x$ which is

$x^{2}-2x+20=0$

To Find:

x = ? using Quadratic Formula

Solution:

For a Quadratic Equation ax² + bx + c = 0 , Formula Method is given as

$x=\dfrac{-b\pm\sqrt{b^{2}-4ac}}{2a}$

On Comparing with above we get

$a=1\\b=-2\\c=20$

Substituting a , b , c in Formula method we get

$x=\dfrac{-(-2)\pm\sqrt{(-2)^{2}-4(1)(20)}}{2\times 1}\\\\x=\dfrac{2\pm\sqrt{-76}}{2}\\\\x=\dfrac{2\pm2\sqrt{19}i}{2}\\Dividing\ by\ 2\ we\ get\\\\x=1 \pm\sqrt{19}i$

Therefore the value of x is

$x=1\pm\sqrt{19}i$

8 0

3 years ago

A package of vinyl floor tiles contains 45 one-foot square tiles. Find how many packages should be bought to cover the rectangul

Aleksandr-060686 [28]

Okay so you should find the area and then divide it by 45

120*90= 10,800

10,800/45= 240

240 is the amount of packages you will need to cover the floor

6 0

3 years ago