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1 year ago

Which statement is true for all parallelograms? (1 point)

Mathematics

1 answer:

Aloiza [94]1 year ago

8 0

The opposite sides are equal in length.

Step-by-step explanation:

Opposite sides of a parallelogram must be congruent. This is a property of all parralelograms.

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What is 7.8x10^5 hours in daysB

Kamila [148]

D, because if you expand it, 780000, then you divide it by the number of hours in a day, you get 32500. Then you put it into scientific notation, 3.250 x 10^4

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2 years ago

Solve the following equation: x + 5 = 42<br> a -42, 42<br> b -5, 5<br> c -37, 47<br> d -47, 37

morpeh [17]

Answer:

Please read the explanation:

The answer is 37.

Step-by-step explanation:

x + 5 = 42 Write out the equation.

x + 5 - 5 = 42 -5 Subtract 5 on both sides to isolate the variable, x

x = 37

<h3><u><em>Please rate this and please give brainliest. Thanks!!!</em></u></h3><h3><u><em>Appreciate it! : )</em></u></h3>

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2 years ago

Complete the square for x^2+12x-5.

Setler [38]

Answer:

$x^2+12x-5=(x+6)^2-41$

Step-by-step explanation:

The given expression is $x^2+12x-5$

Comparing to $ax^2+bx+c$ , we have $a=1,b=12,c=-5$

We add and subtract $(\frac{b}{2a})^2$

$x^2+12x+6^2-6^2-5$

This implies that:

$\boxed{x^2+6x+36}-36-5$

The expression in the rectangle is a perfect square

$(x+6)^2-41$

Therefore $x^2+12x-5=(x+6)^2-41$

3 0

2 years ago

Eugene can type 55 words per minuet. Allen can type 80 words in 2 minuets. If Eugene and Allen each type for 30 minuets, how man

Art [367]

Answer:

Step-by-step explanation:

55x30=1650 80/2=40 40x30=1200

1650-1200=450 Therefore Eugene has type 450 more words then Allen has

7 0

2 years ago

What is the length of CD? In this diagram, <br> ABC ~ EDC.

Alex777 [14]

Hey there!

Answer:

CD = 3.

Step-by-step explanation:

Since the triangles are similar, we can set up a ratio to determine the other side-lengths:

$\frac{12-x}{18} =\frac{x}{6}$

Cross multiply:

$6(12-x) = 18x$

Distribute the '6':

$72-6x = 18x$

Combine like terms and simplify:

$72 = 24x$

$x = 3$

Therefore, the length of CD is 3.

5 0

3 years ago