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kondor19780726 [428]
4 years ago
12

-8x-11x simplifying

Mathematics
2 answers:
Margaret [11]4 years ago
8 0

Answer:

-19x

Step-by-step explanation:

-8x - 11x

= -19x

Brut [27]4 years ago
3 0
-8x-11x is -19x
You simply just collect the like terms ;)
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SOMEBODY PLEASE HELP ME! I'M HORRIBLE AT GEOMETRY!
Elina [12.6K]

Answer:

Step-by-step explanation:

From graph :

IF = 59

MJ = 26

MJ/IF = 26/59

FGHI is sumilar to JKLM

So JK/FG = 26/58

So 26/59 = Jk/28

JK =( 28*26)/(59)=12.33 ~12

4 0
3 years ago
The cosine of the complimentary angle to 38°
aleksandrvk [35]

Answer:

D 0.62

Step-by-step explanation:

90-38 = 52

cos (52) = .62

8 0
3 years ago
A direct variation passes through the point (-3,9) given y varies directly as x find the value of y when x is 2
frutty [35]

Answer:

<em>y=-6</em>

Step-by-step explanation:

<u>Proportions</u>

A direct proportion is a relation between variables where their ratio is a constant value. This means that if y and x are proportional, then:

y = kx

Where k is the constant of proportionality.

Substituting x=-3 y=9:

9 = k(-3)

k=\frac{9}{-3}=-3

Now the relationship is:

y = -3x

For x=2

y = -3(2) = -6

5 0
3 years ago
What is the unit cost for Brand A that cost $3.84 for 16 oz?<br> $0.25/oz<br> $0.24/oz<br> $0.33/oz
suter [353]
Answer: $0.24

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I used a calculator for the math equation but that’s all you do
5 0
4 years ago
Read 2 more answers
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Lerok [7]

Answer:

(0.5446, 0.6554)

Step-by-step explanation:

As the sample is sufficiently large, the formula is used to estimate the proportion shown in the attached image.

Where:

P: sample proportion = 0.6

n: Sample size = 300

1-\alpha: Confidence level = 0.95

α: Significance = 0.05

Z_{\alpha / 2} = 1.96 *

* Obtained from the normal standard table.

When introducing these values in the formula shown in the image we obtain:

0.6 + 1.96 *\sqrt {\frac{0.6*0.4}{300}}

0.6 - 1.96 *\sqrt{\frac{0.6*0.4}{300}}

Finally, the confidence interval is:

(0.5446, 0.6554)

8 0
3 years ago
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