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worty [1.4K]
3 years ago
12

Need answers!! Will give 20 pts. !!

Mathematics
1 answer:
devlian [24]3 years ago
4 0
1. 64=8
2. 361=19
3. 471969=687
4. 0.0676=.26
5. .0025=0.5
6. 25/36=.83...

1. 438=20.92
2. 813=28.51
3. 958=30.95
4. 218.1529=14.77
5. .235=.48
6. 3.8809=1.97

1. positive numbers have 2 square roots, one positive & one negative

1.-268=16.3
2.-79=9(8.8...)
3.-0.102=.31

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Vertex form of <br> y=x^2-4x-9
Scrat [10]
Complete the square
first isolate x terms
y=(x^2-4x)-9
complete square inside (take 1/2 of square of b )
-4/2=-2, (-2)^2=4
add 4-4 inside
y=(x^2-4x+4-4)-9
complete the square
y=((x-2)^2-4)-9
y=(x-2)^2-4-9
y=(x-2)^2-13
3 0
3 years ago
F you have $18 and a 15% markup, what is the retail price?
Serggg [28]
OK so first I like to find what 10% is which in this case would be 1.8 and to find the other 5% you divide 1.8 by 2 which gets you .9 if you and 1.8 and .9 you get 2.7 and if you add 2.7 to 18 you get 20.7 which is your retail price
4 0
3 years ago
A=14+(n-1)(8) solve please step by step
Rashid [163]

Answer:

a = 8n + 6

Step-by-step explanation:

<u>Step 1:  Distribute</u>

<u />a = 14 + (n - 1)(8)

a = 14 + (8 * n) + (8 * -1)

a = 14 + 8n - 8

a = 8n + 6

Answer:  a = 8n + 6

5 0
3 years ago
Read 2 more answers
Find the shaded area ..
never [62]

Answer:

39°

Step-by-step explanation:

The angle adjacent to 115° in the lower triangle = 180° - 115° = 65°

angle on circle in lower triangle

= 180° - (65 + 76)°  ← angle sum in triangle

= 180° - 141° = 39°

Angles on the circle subtended from the same arc are congruent, then

shaded angle = 39°

6 0
2 years ago
A company introduced a much smaller variant of its tablet, known as the tablet junior. Weighing less than 11 ounces, it was abou
Inessa [10]

Answer:

0.2857

Step-by-step explanation:

Given that a company introduced a much smaller variant of its tablet, known as the tablet junior.

The weight was less than 11 oz. i.e. 50% lighter than std.

Let X be the battery life of the tablet junior

Then X is U(8.5,12)

Mean of X =10.25 hrs

the probability that the battery life for a tablet junior will be 9.5 hours or less

=P(X\leq 9.5)\\=F(9.5)\\=\frac{9.5-8.5}{12-8.5} \\=0.2857

7 0
3 years ago
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