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fiasKO [112]
3 years ago
9

Can you please help me​

Mathematics
1 answer:
Sedbober [7]3 years ago
6 0

Answer:

1. (x-2)(x-15)

2 (3x-4)(x+2)

3. cannot factor

Step-by-step explanation:

math papa greatest website for math equations.

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What is the perimeter of a rectangle whose vertices are (2,7) (8,7) (211) (8,11)?
RoseWind [281]

Answer:

e) 20

Step-by-step explanation:

Segment lengths:

|(2, 7) -> (8, 7)| = |(8-2, 7-7)| = |(6, 0)| = 6

|(8, 7) -? (8, 11)| = |(8-8, 11-7)| = |(0, 4)| = 4

because we know it's a rectangle, we can infer that the other two sides also have lengths 4 and 6, so the perimeter is 4+4+6+6=20

5 0
3 years ago
Last summer, Jon earned $916 mowing lawns. His brother, Gabe, earned $791 completing chores in the neighborhood. Compare the val
Effectus [21]
One brother Jon has earned more than his brother Gabe. Jon's 9 is the hundreds place and Gabe's 9 is in the tens place. This therefore more signifies that Jon has earned a higher number of money.
4 0
3 years ago
Karen wants to advertise how many chocolate chips are in each big chip cookie at her bakery. she randomly selects a sample of 69
Tomtit [17]

Answer: (10.1989,\ 11.0011)

Step-by-step explanation:

Given : Sample size : n=69

Sample mean : \overline{x}=10.6

Standard deviation : s=1.7

Significance level : \alpha:1-0.95=0.05

Then , Critical value : z_{\alpha/2}=1.96

The formula to confidence interval is given by : -

\overline{x}\pm z_{\alpha/2}\dfrac{s}{\sqrt{n}}\\\\\Rightarrow\ 10.6\pm (1.96)\dfrac{1.7}{\sqrt{69}}\\\\\approx10.6\pm0.4011=(10.6-0.4011,10.6+0.4011)=(10.1989,\ 11.0011)

Hence, the 95% confidence interval for the number of chocolate chips per cookie for big chip cookies= (10.1989,\ 11.0011)

8 0
4 years ago
Raspunsul la intrebarea 5,6,7
hammer [34]
Sorry i dont speak this language
3 0
4 years ago
a newly-planned tree needs to be staked with three wires. each wire is attached to the trunk 3ft. above the ground, and then anc
Alexandra [31]
       | \
3ft   |   \
       |_ _\
        4ft
a²+b²=c²           Pythagorean Theorem
3²+4²=c²           simplify
c=√(3²+4²)        isolate c
c=5

c*6=answer      because you need wire for 6 trees
5*6=answer
answer=30

You will need 30 feet of wire
4 0
3 years ago
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