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jolli1 [7]
3 years ago
10

Please solve! add equation. Will Name Brainliest!!!!

Mathematics
2 answers:
Rina8888 [55]3 years ago
7 0
A pack of bracelets were $1.20
marshall27 [118]3 years ago
5 0
Answer= $1.20

Step by step explanation-
7x+3x+2x=$14.40
12x=$14.40
x=14.40/12
x=$1.20
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Rachel is using grouping to find the factors of a quadratic expression. She has reached the step shown below. Determine the fact
Feliz [49]

Answer: First option is correct.

Step-by-step explanation:

Since we have given that

If the factored form is given by

(3x-4)(x+2)

Then its standard form will be given by

(3x-4)(x+2)\\\\=3x^2+6x-4x+8\\\\=3x^2+2x+8

if factored form is given by

(3x+2)(x+4)

Then its standard form will be given by

(3x+2)(x+4)\\\\=3x^2+12x+2x+8\\\\=3x^2+14x+8

Hence, only first option is correct.

5 0
4 years ago
Read 2 more answers
Help me order the side from shortest to longest
svet-max [94.6K]

Answer:

Step-by-step explanation:

AB BC AC

(I’m not sure, If Im wrong let me knoww ❤️❤️)

3 0
3 years ago
Read 2 more answers
How much time is in between these two times?<br><br> Start: 11:34 A.M.<br><br> End: 10:23 P.M.
icang [17]
10 Hours and 49 Minutes. 
4 0
3 years ago
Read 2 more answers
Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with μ=10
Tju [1.3M]

Answer: 0.8238

Step-by-step explanation:

Given : Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with \mu=106 and \sigma=15.

Let x denotes the scores on a certain intelligence test for children between ages 13 and 15 years.

Then, the proportion of children aged 13 to 15 years old have scores on this test above 92 will be :-

P(x>92)=1-P(x\leq92)\\\\=1-P(\dfrac{x-\mu}{\sigma}\leq\dfrac{92-106}{15})\\\\=1-P(z\leq })\\\\=1-P(z\leq-0.93)=1-(1-P(z\leq0.93))\ \ [\because\ P(Z\leq -z)=1-P(Z\leq z)]\\\\=P(z\leq0.93)=0.8238\ \ [\text{By using z-value table.}]

Hence, the proportion of children aged 13 to 15 years old have scores on this test above 92 = 0.8238

4 0
3 years ago
85cm + 258cm + 13cm all over <br> 2
kow [346]

178

You add 85cm plus 258cm plus 13cm then you get the answer divide it by 2 you get

178cm

6 0
3 years ago
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