All categories

3 years ago

What is the x-intercept for the equation -2x + 5y = -10

Mathematics

2 answers:

podryga [215]3 years ago

8 0

Answer:

x = 5

Step-by-step explanation:

In order to get the x-intercept of an equation, you need to set the y value equal to 0:

-2x + 5(0) = -10

-2x =-10

x = 5

Zielflug [23.3K]3 years ago

5 0

Answer:

The x-intercept is at the point (5,0).

Step-by-step explanation:

-2x + 5y = -10

At the x intercept y = 0 so we substitute y = 0 into the given equation:

-2x + 5(0) = -10

-2x = -10

x = 5.

You might be interested in

Factor the following expression 10x^5+5x^3-14x^2-7-

Tatiana [17]

Answer:

C. (5x^3-7)(2x^2+1)

Step-by-step explanation:

Given expression is,

10x^5+5x^3-14x^2-7

=10x^5-14x^2 + 5x^3 - 7 (By the commutative property)

=2x^2(5x^3-7)+5x^3-7 (Taking 2x^3 common from first two terms )

=(5x^3-7)(2x^2+1) (Taking 5x^3-7 common from both terms)

\implies 10x^5+5x^3-14x^2-7=(5x^3-7)(2x^2+1)

Hence, Option C is correct

5 0

3 years ago

Round 1964.15569 to the nearest hundredth, tenth, one, ten, and hundred.

Umnica [9.8K]

1964.16 is hundredth
1964.2 is tenth
1964 is one
1960 is ten
2000 is hundred

6 0

4 years ago

Scores on a college entrance exam are normally distributed with a mean of 550 and a standard deviation of 100. Find the value th

Alinara [238K]

Answer:

The value that represents the 90th percentile of scores is 678.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 550, \sigma = 100$