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3 years ago

Which statements are true?

Mathematics

2 answers:

telo118 [61]3 years ago

6 0

Answer:

All rectangles are squares, All parallelograms are quadrilaterals,

horrorfan [7]3 years ago

5 0

Answer:

all squares are rhombuses, all parallelograms are quadrilaterals

Step-by-step explanation:

this is what is true

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I really need help asap!!

Firdavs [7]

Given:

A figure of a parallelogram.

The vertex angles are $(12b+8)^\circ,(5b+2)^\circ,2a^\circ$ .

To find:

The values of a and b.

Solution:

We know that the pairs of consecutive angles of a parallelogram are supplementary angles. It mean their sum is 180 degrees.

$(12b+8)^\circ+(5b+2)^\circ=180^\circ$ (Supplementary angles)

$(17b+10)^\circ=180^\circ$

$17b+10=180$

Subtract 10 from both sides.

$17b=180-10$

$17b=170$

Divide both sides by 17.

$b=\dfrac{170}{17}$

$b=10$

Now,

$(5b+2)^\circ=(5(10)+2)^\circ$

$(5b+2)^\circ=(50+2)^\circ$

$(5b+2)^\circ=52^\circ$

And,

$(5b+2)^\circ+2a^\circ=180^\circ$ (Supplementary angles)

$52^\circ+2a^\circ=180^\circ$

$2a^\circ=180^\circ-52^\circ$

$2a^\circ=128^\circ$

Divide both sides by 2.

$a^\circ=\dfrac{128^\circ}{2}$

$a^\circ=64^\circ$

$a=64$

Therefore, the value of a is 64 and the value of b is 10.

5 0

3 years ago

Type the correct answer in each box. Use numerals instead of words.

Dahasolnce [82]

Answer:

ttttihbogfpvvovovibjnphgbpvvvohj

8 0

1 year ago

Factor 3/4 out of 3/4z+6.

Bingel [31]

Answer:

Step-by-step explanation:

5 0

3 years ago

the local Swim Center is making a special offer they regular charge is $7 per day to swim at the pool the special offer would ha

algol [13]

To fill in the first column =
Every day is 7 dollars, which you have already answered.
The second one would be =
day 0 = 30 dollars. And then it would be 4$ for days 1 through 10.
Hope this helps!

8 0

3 years ago

You ask 125 randomly chosen students their favorite sport. There are 1300 students in the school. Based on the results of the su

yan [13]

780 students

Set up a proportion.

75 / 125 = x/1300

125 10.4 = 1300

75 * 10.4 = 780

x=780

5 0

3 years ago