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romanna [79]
3 years ago
12

Can someone help me solve this ill mark u as brainlest

Mathematics
1 answer:
Oksanka [162]3 years ago
6 0

Answer:

-13  ≤ x  ≤ 11

Step-by-step explanation:

|x+1| ≤12

There are two solutions, one positive and one negative, remembering to flip the inequality for the negative

x+1 ≤12     x+1 ≥-12

Subtract 1 from each side

x+1-1 ≤12-1   and   x+1-1 ≥-12-1

x ≤11   and     x ≥-13

-13  ≤ x  ≤ 11

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Find the quotient of these complex numbers.
stich3 [128]

9514 1404 393

Answer:

  C.  (45+11i)/29

Step-by-step explanation:

Multiply numerator and denominator by the conjugate of the denominator.

  \dfrac{5-7i}{2-5i}=\dfrac{(5-7i)(2+5i)}{(2-5i)(2+5i)}=\dfrac{(5)(2)+(-7i)(5i) +(5)(5i)+(-7i)(2)}{2^2+5^2}\\\\=\dfrac{(10+35)+(24-14)i}{29}=\boxed{\dfrac{45}{29}+\dfrac{11}{29}i}

8 0
2 years ago
Marlene earned $178 at her summer job. She already had savings of $98.25. She buys a T-shirt for $19.50. How much money does she
Stels [109]
$256.75
Add $178 + $98.25= $276.25
Then $276.25 - $19.50 = $256.75
7 0
2 years ago
Coal is carried from a mine in West Virginia to a power plant in New York in hopper cars on a long train. The automatic hopper c
svp [43]

Answer:

0.2839 = 28.93%

Step-by-step explanation:

In order to find find the probability that one car chosen at random will have less than 68.5 tons of coal, we have to find z

Le x be tons of coal in a car

Z = (x – mean)/standard deviation

Z = (x – μ)/ σ

P (x<68.5) = P(z < (68.5-69)/0.9)

P (x<68.5) = P(z < -0.5555)

Then we use the z table to find the area under the curve.

P (x<68.5) = 0.2893

5 0
3 years ago
at the craft store , alan bought a bag of orange and green marbles. the bag contained 25 marbles, and 40% of them where orange.
Kazeer [188]

Answer:

There are 10 orange marbles

Step-by-step explanation:

There are 25 marbles in the bag

40% are orange

To determine the number of orange marbles, we multiply the total number of marbles  by the percent that are orange

25 *40% = number of orange marbles

25*.40

10

There are 10 orange marbles


4 0
3 years ago
Read 2 more answers
Is the following relation a function?<br><br> A. Yes<br> B. No
SVETLANKA909090 [29]

Answer:

  B.  No

Step-by-step explanation:

In order for the relation to be a function, each X value must source exactly one arrow. The value -1 maps to two different values (2, -1), so the relation is NOT A FUNCTION.

3 0
2 years ago
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