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Mashutka [201]
3 years ago
5

The current population of the Earth is estimated to be about 7,440,000,000 people. Express this number using scientific notation

.
Mathematics
1 answer:
SCORPION-xisa [38]3 years ago
8 0

Answer:

7.44 × 10⁹

Step-by-step explanation:

You would take a decimal point from the last zero to in-between 7 and 4 and see how many places you moved it then write the scientific formula.

9 spaces so it would be 7.44 × 10⁹

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Solve 6^x=1,296<br><br><br> X=__________a0
Troyanec [42]

Answer:

x=4

Step-by-step explanation:

6^x = 1296

Take the log base 6 on each side

log6(6^x) = log6(1296)

Rewrite 1296 as 6^4

x = log 6(6^4)

We know that log( a^b) = b log (a)

x = 4 log6(6)

We know that loga(a) =1

x = 4 *a

x =4

5 0
3 years ago
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Describe the effects on the graph of y = f(x) when y = –f(x + 4)
Anni [7]

Answer:

Step-by-step explanation:

Graph is shifted 4 units to the right and reflected over the x-axis.

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3 years ago
X + y = 24
Masja [62]

Answer:

(10, 14)

Step-by-step explanation:

To solve this system let's use substitution:

Solve the first equation for x, obtaining x = 24 - y, and then substitute 24 - y for x in the second equation:

3(24 - y) + 5y = 100

Performing the indicated multiplication, we get:

72 - 3y + 5y = 100

Combining like terms results in 72 - 100 = -2y, or -28 = -2y

Thus, y must be 14.

If y = 14, then the first equation tells us that x = 10.

Check:  Is this true?  3(10) + 5(14) = 100  YES

The solution is (10, 14).

What was it about the questions on the best that you were supposed to compare to this solution?

8 0
3 years ago
Which of the following is being constructed in the image.
Sliva [168]

Answer:

  3. a line perpendicular to a given line through a point not on the line

Step-by-step explanation:

The point not on the line suggests that choices 1 and 3 are possibilities. The fact that the dotted line is not parallel (and is perpendicular) to the solid line suggests that choice 3 is applicable and choice 1 is not.

The short arcs are equidistant from the end points of the chord that intercepts the larger arc. Hence the line through the crossing point of the short arcs and the point on the other side of the line will be the perpendicular bisector of the chord, and will be perpendicular to the solid line. Creating that perpendicular is likely the purpose of the construction.

5 0
3 years ago
Exam​ question: You can buy a 57​-pound bag of flour for ​$ 11 or you can buy a​ 1-pound bag for $ 0.41 Compare the per pound co
egoroff_w [7]

Answer:

Step-by-step explanation:

57 lb bag for $ 11  or 1 lb bag for $ 0.41

11/51 = 0.215 .....rounds to 0.22 ......this is the correct way...... the student messed up and divided wrong.

the large bag only charges $ 0.22 per lb, whereas, the small bag charges $ 0.41 per lb.

3 0
3 years ago
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