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Flauer [41]
2 years ago
8

(7.8×10^7) + (9.9×10^7)

Mathematics
1 answer:
Hatshy [7]2 years ago
8 0
(7.8×10⁷)+(9.9×10⁷)
(7.8×10000000)+(9.9×10000000)
(78000000)+(99000000)
177000000
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The following table shows a proportional relationship between mmm and nnn.
Marina CMI [18]

Answer:

70707mmm = 111nnn

Step-by-step explanation:

Using the basic equation of a line:

y = mx + c;. where m is slope and c is intercept on y axis.

Let mmm = y and nnn = x

(i) 333 = 212121m + c

(ii) 555 = 353535m + c

Making c the subject of the formula in both (i) and (ii)

c = 333 - 212121m = 555 - 353535m

353535m -212121m = 555 - 333

141414m = 222

m = 111/70707

Substitute in (i) above

c = 333 -333 = 0

Hence; y = 111/70707x + c

Finally, mmm = 111/70707 nnn

i.e. 70707mmm = 111nnn

Hope this helps.

5 0
3 years ago
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grin007 [14]

Answer: the picture has no answer it's invalid but I will try:

X is a 90 degree angle other than that I can't do anything

Step-by-step explanation:

6 0
3 years ago
) Hiroki's goal is to collect $40 for a school fundraiser. He has already collected $26.50. Hiroki wants
mariarad [96]

Answer:

$13.50

Step-by-step explanation:

Subtract 40 from 26.50 to get the answer

6 0
2 years ago
What is the difference in height from the top of the pillar to the bottom of the pillar ?​
stiks02 [169]

Answer:

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2 years ago
A? 9-year-old girl did a science fair experiment in which she tested professional touch therapists to see if they could sense he
masya89 [10]

Answer:

The correct option is option c.

H0: p not equal to 0.5

H1: p equal to 0.5

Step-by-step explanation:

1. H0: p not equal to 0.5

H1: p equal to 0.5

2. P cap = 104/ 260

P cap = 0.4. ( where p cap is the sample proportion)

3. Find the test statistic

Using : Z = ( p cap - p) /√ [(p ×q)/n] where p = 0.5 q= 1-p = 0.5. n=260

Z = -3.23

4. P value = 0.006

5. Since p value is less than the alpha level (0.01) . we reject the null hypothesis and conclude that the touch therapists are not effective.

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3 years ago
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