Cross-multiplication is helpful in: a. quadratic equations c. linear equations b. solving proportions d. word problems

Mathematics

2 answers:

Mice21 [21]1 year ago

4 0

Answer:

not what he said

Step-by-step explanation:

Romashka [77]1 year ago

3 0

Answer:

Cross multiplying fractions helps us to see if numbers are equal, and if not, which is bigger and which is smaller. But that is not its only use. Cross multiplying fractions can help us to solve for unknown variables in fractions.

Step-by-step explanation:

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How does solving linear inequalities compare with solving linear equations?

maks197457 [2]

It is just the difference between the signs

3 0

3 years ago

PLz help me this is 7th grade math

UkoKoshka [18]

Answer:

g = 118°, h = 62°, k = 140°, m = 40°

Step-by-step explanation:

g = 118°

h = 180 - 118 = 62°

k = 140°

m = 180 - 140 = 40°

5 0

3 years ago

There are two calculus classes at your school classes have a class average of 75.5 the first class as a standard deviation of 10

DENIUS [597]

To compare the two classes, the Coefficient of Variation (COV) can be used.

The formula for COV is this:
C = s / x

where s is the standard deviation and x is the mean

For the first class:
C1 = 10.2 / 75.5
C1 = 0.1351 (13.51%)

For the second class:
C2 = 22.5 / 75.5
C2 = 0.2980 (29.80%)

The COV is a test of homogeneity. Looking at the values, the first class has more students having a grade closer to the average than the second class.

8 0

3 years ago

If 4x+5=0 what is the value of x

netineya [11]

Answer:

-5/4

Step-by-step explanation:

4x=-5

x=-5/4

7 0

3 years ago

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