Add. what is the sum (2 x 10") + (7 x 1016) in scientific notation? plz

9 x 10¹⁶.

To sum two numbers in scientific notation  it must be taken into account that the power of 10 has the same number and the numbers are normally added and the power of 10 is maintained.

a x 10ⁿ + b x 10ⁿ = (a + b) x 10ⁿ

Then, sum the numbers shown in the image:

(2 x 10¹⁶) + (7 x 10¹⁶) = (2 + 7) x 10¹⁶ = 9 x 10¹⁶

9 times 10^16

Explanation:

when adding or subtracting in standard form (aka scientific notation), the powers of  

10

 need to be the same. If they are just add the numbers and keep the same power of  

10

#2xx10^(16)+7xx10^(16)

= ( 2 + 7 ) × 10 ^16

=9 × 10 ^16

there has been genes found in the x chromosome of males that have been linked to [homo/hetero]sexuality. in addition to the reign of the x chromosome, a section of chromosome 8 has also been link to, "alot of ppl are so " these facts were proven true after a 2014 study of a gay male and his strait brother. according to newscientist.com,"chromosome 14 and is mainly active in the thyroid, but also the brain. called tshr, it makes a type of receptor protein that recognises and binds to a hormone that stimulates the thyroid. in this way, the gene plays an important role in controlling thyroid function. the fact that tshr seems to be involved in sexual orientation fits with evidence that thyroid function seems to be linked to sexuality."

in conclusion, "ppl are so gay" due to their genetics.

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.