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RoseWind [281]
3 years ago
14

Evaluate 3× +7 for x=5.​

Mathematics
1 answer:
juin [17]3 years ago
6 0

Answer:

The answer is 22!

Step-by-step explanation:

3*5 = 15, 15+7 = 22

Brainliest pls! :D

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Given that a(3)=48 and a(5)=768 find the sum of the geometric series for<br> the first 6 terms.
Ksju [112]

Answer:

4095

Step-by-step explanation:

.....................

5 0
3 years ago
Determine and prove what shape is formed for the given coordinates for ABCD, and then find the
ella [17]

Answer:

Square

Step-by-step explanation:

Plot points A (10,-4), B (6,-7), C (3,-3), D (7,0) on the coordinate plane.

Find slopes of the sides:

AB:\ \dfrac{-7-(-4)}{6-10}=\dfrac{3}{4}\\ \\BC:\ \dfrac{-3-(-7)}{3-6}=-\dfrac{4}{3}\\ \\CD:\ \dfrac{0-(-3)}{7-3}=\dfrac{3}{4}\\ \\DA:\ \dfrac{-4-0}{10-7}=-\dfrac{4}{3}

The slopes of opposite sides are the same, so opposite sides are parallel. The slopes of adjacent sides have product of -1, then adjacent sides are perpendicular.

Find the lengths of all sides:

AB=\sqrt{(10-6)^2+(-4-(-7))^2}=\sqrt{4^2+3^2}=\sqrt{16+9}=\sqrt{25}=5\ units\\ \\BC=\sqrt{(6-3)^2+(-7-(-3))^2}=\sqrt{3^2+4^2}=\sqrt{16+9}=\sqrt{25}=5\ units\\ \\CD=\sqrt{(3-7)^2+(-3-0)^2}=\sqrt{4^2+3^2}=\sqrt{16+9}=\sqrt{25}=5\ units\\ \\AD=\sqrt{(10-7)^2+(-4-0)^2}=\sqrt{3^2+4^2}=\sqrt{16+9}=\sqrt{25}=5\ units\\ \\

All four sides are of the same length.

Quadrilateral ABCD is a square (all sides of equal length and perpendicular)

4 0
3 years ago
This is due today please helpppp meeee I really need help
Inga [223]

Answer:

Carla's suitcase was a better purchase.

Step-by-step explanation:

The complete question is:

Carla and Daniel bought identical suitcases at different stores. Carla's suitcase originally cost $75 and was discounted 19% Daniel's suitcase original cost $85 and was on sale for 20% off the original price. Which suitcase was the cheaper?

Solution:

Cost Price of Carla's suitcase = $75

       Discount% for Carla = 19%

       The amount paid by Carla is,

       

       So, the amount paid by Carla was, $60.75.

Cost Price of Jeana's suitcase = $85

       Discount% for Jeana = 20%

       The amount paid by Jeana is,

       

       So, the amount paid by Jeana was, $68.

Carla's suitcase was a better purchase.

5 0
3 years ago
These marbles are placed in a bag and two
Marina86 [1]

Answer:

1/45

Step-by-step explanation:

P(Y,Y) = 2/10 x 1/9 which is 1/45 simplified

5 0
3 years ago
Which numbers are located between 3.8 and 4.0
Sav [38]

Answer:

there are infinite numbers but I am assuming they mean 3.9

4 0
4 years ago
Read 2 more answers
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