2 years ago

Laboratory Worksheet

Mathematics

1 answer:

aleksandrvk [35]2 years ago

3 0

Heyyyyyyyyyyy Hii what’s up

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Simplify 5(х+3) – 9х+4 A. 14x7 B. -4x+7 C. -4x+19 D. 14x+19

goldfiish [28.3K]

Answer:

Step-by-step explanation:

start with factoring.

5x+15-9x+4

then solve

-4x+19

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2 years ago

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The following table shows the data collected from 2 random samples of 100 students from an after-school club regarding their fav

lutik1710 [3]

The answer is : It is more than the number of student who prefer movies and picnics combined.

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2 years ago

Construct a linear equation for the linear data presented in the table

yaroslaw [1]

Answer:

y = -7x

Explanation:

Take two points from table: (-4, 28), (-3, 21)

Find slope:

$\sf slope: \dfrac{y_2 - y_1}{x_2- x_1} \ \ where \ (x_1 , \ y_1), ( x_2 , \ y_2) \ are \ points$

$\rightarrow \sf slope\ (m): \dfrac{21-28}{-3-(-4)} = -7$

Now find equation:

$\sf y - y_1 = m (x - x_1)$

$\rightarrow \sf y - 21 = -7(x - (-3))$

$\rightarrow \sf y = -7(x +3) + 21$

$\rightarrow \sf y = -7x -21 + 21$

$\rightarrow \sf y = -7x$

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1 year ago

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2x – 5 > 3 and -4x + 7 < -25

KATRIN_1 [288]

Answer:

Step-by-step explanation:

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2 years ago

Solve the proportion 35/30 = 28/? A. 48 B. 23 C. 24 D. 46

koban [17]

Answer:

C. 24

Step-by-step explanation:

by algebra:

let "?" be x

35/30 = 28 / x (multiply both sides by 30)

35 = (28/x) (30) (multiply both sides by x)

35x = (28)(30)

35x = 840 (divide both sides by 35)

x = 840 / 35

x = 24

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2 years ago