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3 years ago

EASY QUESTION 30 POINTS

Mathematics

2 answers:

Ahat [919]3 years ago

8 0

Answer:

the answer is the first I think

olga nikolaevna [1]3 years ago

3 0

Answer:Use a compass and draw an arc across both the legs of the given angle.

Step-by-step explanation: Nothing else makes sense

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Convert the following values into scientific notation. Which one has the negative exponent.

REY [17]

Answer:

B has a negative exponent: 8 x 10^-7

A doesn't: 4.267 x 10^7

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3 years ago

Alex wants to paint the four walls of her new office. The room has dimensions 18 feet by

jekas [21]

Answer:

Step-by-step explanation:

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3 years ago

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Ben is taking a typing class, and the following line graph represents the number of words per minute he was able to type each we

Crank

During week 2, he could type 15 words per minute, at his fourth week, he could type 30. So 30-15=15. He could type 15 words faster on week 4 than he could at week 2.

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3 years ago

PLEASE SOLVE AND CHECK. SHOW COMPLETE SOLUTION

Alex17521 [72]

Solution:

$\sqrt{4x + 13} = x + 2$

First square both sides.

$= > ( \sqrt{4x + 13} ) ^{2} = (x + 2) ^{2}$

Now, square root and square gets cancel out in the LHS. And in the RHS, apply the identity: (a + b)² = a² + 2ab + b².

$= > 4x + 13 = {(x)}^{2} + 2 \times x \times 2 + (2) ^{2} \\ = > 4x + 13 = {x}^{2} + 4x + 4$

Now, transpose 4x and 4 to LHS.

$= > 4x - 4x + 13 - 4 = {x}^{2} \\$

Now, do the addition and subtraction.

$= > {x}^{2} = 9 \\ = > x = \sqrt{9} \\ = > x = ±3$

Answer:

x = ± 3

Hope you could understand.

If you have any query, feel free to ask.

3 0

2 years ago

If 4 daps = 7 yaps, and 5 yaps = 3 baps, how many daps equal 42 baps? **GIVING OUT BRAINLIEST**

Montano1993 [528]

Answer:

40 daps

Step-by-step explanation:

lets say daps is d, yaps are y and baps are b

4d = 7y, 5y=3b

First convert to y

4/7d = y

Now convert that to b

5(4d/7) = 3b

20d / 7 = 3b

20d / 21 = b

Plug it in:

42(20d/21)

40d

aka 40 daps

4 0

2 years ago