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3 years ago

Which statement is true about firgure DEF

Mathematics

1 answer:

maw [93]3 years ago

8 0

Side DF is congruent (the = and ~ symbol) to side DE

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9x^2-y^2 in factored form

Keith_Richards [23]

Answer:

$(3a-y)(3a+y)$

Step-by-step explanation:

This is a difference of squares that has the form and factors to:

$a^2x^2-b^2 = (ax-b)(ax+b)$

Here take the square root of each term for the factors.

$9a^2-y^2 = (3a-y)(3a+y)$

8 0

3 years ago

The table shows the low temperature in five cities on a winter day. which statement is true

lianna [129]

The answer to that question so D because 1.0 is the lowest tem.

3 0

4 years ago

1. 3,742 x 6= help with step by step

xenn [34]

Answer: The answer is 22,452

Step-by-step explanation: Multiply 6×2 which will be 12

Put the 1 from the 12 on top of the 4 then do 4×6+1 it will equal 25

Then put the 2 on top of the 7 then do 7×6+2 it will equal 44

Then put the 4 on top of the 3 then do 3×6+4 it will equal 22

And that's how you get your answer.

5 0

3 years ago

Formulate the situation as a system of two linear equations in two variables. Be sure to state clearly the meaning of your x- an

ozzi

<h2>Answer with explanation:</h2>

Let x be the number of sodas and y be the number of hot dogs.

Given : The concession stand at an ice hockey rink had receipts of $6200 from selling a total of 2600 sodas and hot dogs.

If each soda sold for $2 and each hot dog sold for $3.

Then we have a system of two linear equations in two variables :_

$x+y=2600--------(1)\\\\2x+3y=6200--------------(2)$

Multiply 2 to the each side of equation (1), we get

$2x+2y=5200----------(3)$

Eliminate equation (3) from equation (2), we get

$y=1000$

Substitute the value of y in (1), we get

$x+1000=2600\\\\\Rightarrow\ x=1600$

Hence, 1600 sodas and 1000 hot dogs were sold.

3 0

3 years ago

Find all solutions on the interval [0, 2π).

ludmilkaskok [199]

Answer:

t = 0.7227, 2.3005, 3.9827, 5.5605

Step-by-step explanation:

12(1 - cos²t) + cost - 3 - 3 = 0

-12cos²t + cost + 6 = 0

-12cos²t +9cost - 8cost + 6 = 0

-3cost(4cost - 3) - 2(4cost - 3) = 0

(4cost - 3)(-3cost - 2) = 0

cost = ¾ cost = -⅔

t = (cos^-1)(3/4)

t = 0.7227, 5.5605

t = (cos^-1)(-2/3)

t = 2.3005, 3.9827

4 0

3 years ago