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3 years ago

Please help timed test

Mathematics

1 answer:

Inga [223]3 years ago

4 0

Answer:

A-The first question

Step-by-step explanation:

Try using Math.way next time!

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A farmer feeds a cow 9300 milligrams of an antibiotic. Every hour, 50% of the drug breaks down in the cow's body. How much will

hichkok12 [17]

9514 1404 393

Answer:

about 145.3 mg

Step-by-step explanation:

If half breaks down in the hour, then half remains. That is, each hour the amount remaining is multiplied by 1/2. The remainder after 6 hours is ...

(9300 mg)(1/2)^6 = 145.3125 gm

About 145.3 mg will be left after 6 hours.

6 0

3 years ago

Write the given trinomial if possible as a square of a binomial or as an expression opposite to a square of a binomial: 15ab-9a^

MrMuchimi

Answer:

$- \bigg(3a - \frac{5}{2} b) \bigg)^{2}$

Step-by-step explanation:

$15ab-9a^2-6 \frac{1}{4} b^2 \\ \\ = 15ab-(3a)^2-\frac{6 \times 4 + 1}{4} b^2 \\ \\ = 15ab-(3a)^2-\frac{24+ 1}{4} b^2 \\ \\ = 15ab-(3a)^2-\frac{25}{4} b^2 \\ \\ = 15ab- (3a)^2- \bigg(\frac{5}{2} b \bigg)^2 \\ \\ = - \{ - 15ab + (3a)^2 + \bigg(\frac{5}{2} b \bigg)^2 \} \\ \\ = - \{ (3a)^2 + \bigg(\frac{5}{2} b \bigg)^2 - 15ab \} \\ \\ = - \bigg(3a - \frac{5}{2} b \bigg)^{2}$

3 0

3 years ago

What's 100 * 100? And what's the square root of that number?

dmitriy555 [2]

Answer: 100

Step-by-step explanation:

100*100= 10000

The square root of 10000 is 100.

* Hopefully this helps!

3 0

3 years ago

Read 2 more answers

Please help!! (Will give brainy!) (Geometry) (look at picture)

stiv31 [10]

Answer:

First ones 90 and the second one is 48

Step-by-step explanation:

please brainliest me

5 0

3 years ago

Part A: The sum of the measures of UWZ is 90, so UWV and UWZ are_________ angles.

kiruha [24]

Answer: A. UWV and UWZ are complementary angles.

B.They do not overlap, so UWV and VWX are supplementary angles

Step-by-step explanation:

Complementary angles add up to 90.

Supplementary angles do not overlap.

4 0

3 years ago