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astra-53 [7]
3 years ago
12

Use the distributive property to remove the parentheses. -2(5u - 3x-6)

Mathematics
1 answer:
melamori03 [73]3 years ago
7 0

Answer:

I think it would be: -10u - 6x 12

Step-by-step explanation:

(step 1) -2(5u - 3x-6) "First you need to times -2 by 5, 3 and -6"

that should give you -10u - 6x 12

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What is the area of this triangle?<br><br> Enter your answer in the box.
Norma-Jean [14]

Answer:

i think 8cm is triangle area

Step-by-step explanation:

because i saw that 8cm on the side so I told 8cm the triangle.

3 0
2 years ago
A grower believes that one in five of his citrus trees are infected with the citrus red mite. How large a sample should be taken
kotegsom [21]

Answer: 68

Step-by-step explanation:

Formula for sample size when prior estimate of population proportion (p) is available:  n=p(1-p)(\dfrac{z^*}{E})^2

, where z*= critical-value.

E= Margin of error.

Let p be the population proportion of  trees are infected with the citrus red mite.

As per given , we have

p=\dfrac{1}{5}=0.2

E= ± 0.08

The critical z-value corresponding to 90% confidence level = z*=1.645

Substitute all the values in the above formula , we get

Required sample size  :n=(0.2)(1-0.2)(\dfrac{(1.645)}{0.08})^2

\Rightarrow\ n=(0.2)(0.8)(20.5625)^2

\Rightarrow\ n=0.16(422.81640625)\\\\\Rightarrow\ n=67.650625\approx68 [Rounded to next integer.]

Thus, the minimum sample size should be taken =68

6 0
3 years ago
A football game lasted 3.15 hours. how many seconds did the game last? if necessary, round your answer to the nearest tenth of a
Eva8 [605]
It would be 11340 seconds. 
Hope this helps!
6 0
3 years ago
Read 2 more answers
Explain weather or not the two triangles below could lie on the same line. Be sure to use the slope of each triangle in your jus
KonstantinChe [14]

Answer:

No, these triangles cannot lie on the same line.

Step-by-step explanation:

For two triangles to lie on the same line they must have the same slope.

The slope of the bigger triangle is

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and the slope of the smaller triangle is

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slopes are negative because the triangles are leaning to the left.

We see that the slopes of the two triangles are not the same; therefore, they cannot lie on the same line.

5 0
3 years ago
Choose the expression that represents “three less than seven times a number.”
tamaranim1 [39]

Answer:

x7-3 as number is multiplied by 7 then subtracted by 3

3 0
3 years ago
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