2 years ago

Help please i will give brainliest

Mathematics

1 answer:

tangare [24]2 years ago

8 0

Answer:

7 $\geq$ r

Step-by-step explanation:

-1.3 $\geq$ 2.9-0.6r

-2.9 -2.9

-4.2 ≥ -0.6r

/-0.6 /-0.6

7 ≥ r

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What is (3xy^2)(-6xy^4)

krok68 [10]

Answer:

$-18x^2y^6$

Step-by-step explanation:

we have

$(3xy^2)(-6xy^4)$

Applying property of exponents

$x^{m} x^{n}=x^{m+n}$

$(3xy^2)(-6xy^4)=(3)(-6)(x^{1+1})(y^{2+4})=(-18)(x^{2})(y^{6})=-18x^2y^6$

5 0

3 years ago

nancy spent 7/8 hour working out at the gym she spent 5/7 of that time lifting weights what fraction of an hour did sje spentld

Juli2301 [7.4K]

$\frac{9}{56}\\$ Fraction of hour was spent by NAncy in lifting weights

Step-by-step explanation:

Time spent at the gym by Nancy = $\frac{7}{8}\,hour$

Time spent at lifting weights = $\frac{5}{7}\,hour$

What fraction of hour she spent in lifting weights?

Solving:

Fraction of hour she spent in lifting weights= Time spend at the gym-Time spent at lifting weights

Fraction of hour she spent in lifting weights= $\frac{7}{8}\,hour-\frac{5}{7}\,hour$

$=\frac{49}{56}-\frac{40}{56}\\=\frac{49-40}{56}\\=\frac{9}{56}\\$

So, $\frac{9}{56}\\$ Fraction of hour was spent by Nancy in lifting weights

Keywords: Word Problems involving Fractions

Learn more about Word Problems involving Fractions at:

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7 0

2 years ago

In the figure below,S is between Q and T and R is the midpoint of QS. If RS=4 And RT= 12 find QT

Oxana [17]

Qt = 16.

Because since rs Is equal to qr since r is the midpoint of qs. So qr is 8 and because s is the midpoint of the whole line. I multiply it by 2. Giving me 16 for the whole line

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3 years ago

How many significant figures are represented in 0.00509?

Minchanka [31]

Answer:

there are three significant numbers

3 0

1 year ago

Read 2 more answers

there are 28 tables in the cafeteria.each table has 12 students sitting at it.fourth graders sit at 13 of the yables.fifth grade

Darya [45]

Hope this helps!

28 - 13 = 15
15 x 12 = 180 Fifth graders

6 0

3 years ago