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Gekata [30.6K]
3 years ago
10

Please help answer Will give brainlst

Mathematics
2 answers:
Andru [333]3 years ago
7 0

D.

Drop an antacid tablet into a glass of water, can produce a chemical change.

vovikov84 [41]3 years ago
6 0

Answer:

A.

Step-by-step explanation:

When salt dissolves the ionic bonds between the atoms break so a chemical change occurs.

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Cynthia typed 372 words in 6 minutes what's her typing rate in words per minute
VMariaS [17]

Answer:

<u>x = 62 words</u>

Explanation:

→ <em>We write the data problems. </em>

372 words .............6 minutes

→ We must find: <em>What's Cynthia typing rate in words per minute?</em>

372 words .............6 minutes

x words ..................1 minute

x = 372 words * 1 minute/ 6 minutes

<u>x = 62 words</u>

5 0
3 years ago
What differentiable functions have an arc length on the interval [a, b] given by the following integrals? Note that the answers
Dafna1 [17]

Answer:

a) \pm 8\frac{x^{5}}{5}+C

b) \pm 4 sin(2x) + C

Step-by-step explanation:

Given integrals are:

a) \int\limits^a_b {\sqrt{{1+64x^{8}} } \, dx ---(1)

b) \int\limits^a_b {\sqrt{1+64cos^{2}(2x)} } \, dx---- (2)

Standard form

                L= \int\limits^a_b {\sqrt{1+(f'(x))^{2}} } \, dx

<h3>Part A</h3>

compare (1) with standard form

[f'(x)]^{2} = 64x^{8}\\f'(x)=\pm 8x^{4}\\f(x)= \pm8\frac{x^{5}}{5}+C

<h3>Part B</h3>

Compare (2) with standard form

[f'(x)]^{2}=64cos^{2}(2x)\\f'(x)= \pm 8cos(2x)\\f(x)=\pm 8\frac{sin(2x)}{2}+C\\f(x)= \pm 4sin(2x)+C

5 0
3 years ago
Oceans are what percentage of the hydrosphere? <br> a. 71% <br> b. 87% <br> c. 99% <br> d. 97%
Bond [772]

Answer:

71%

Step-by-step explanation:

hydrosphere and biosphere both make sense, but from many searches, it says that at least 70% of Earths SURFACE is covered in water (not describing how deep the water is), so the greatest estimate yet would be 71%

6 0
3 years ago
Read 2 more answers
Ross has 6 1/3 yards of material. He bought 2 1/6 more
insens350 [35]

Answer:

1\frac{2}{3} yards

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Mr. Heath owns a game store.
Nastasia [14]

he drew 2 cards

Step-by-step explanation:

because 4x3 is 12 and to get back to zero u would have to draw 2 red cards which are 6 each. so 4x3=12 and then 6x2=12 12-12=0

6 0
4 years ago
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