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3 years ago

(6x^2−5x)−(4x^2−3x+4)

Mathematics

2 answers:

dybincka [34]3 years ago

6 0

2 times (x + 1) times (x - 2)

katen-ka-za [31]3 years ago

3 0

Answer:

2 • (x + 1) • (x - 2)

Step-by-step explanation:

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Help???????????!!!!!!!!!!!

Butoxors [25]

Salutations!

12 $\frac{2}{3}$

- 9 $\frac{3}{4}$

= $\frac{38}{3}$

Then,

- 9 $\frac{3}{4}$

- $\frac{39}{4}$

Next, our final answer:

= $\frac{35}{12}$

= 2 $\frac{11}{12}$

Our decimal would be 2.916667

Hopefully This Helps!!!

3 0

3 years ago

Examine the following diagram: 3 lines intersect a line to form 8 angles. Angles 2 and 3, 4 and 5, 1 and 4, 5 and 8, and 6 and 7

Alex777 [14]

Answer:

help

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Are parabolas always infinite?

9966 [12]

Ellipses, parabolas, and infinity. A parabola can be defined as the locus of points equidistant from a fixed point (called the focus) and a fixed line (called the directrix). But we know from projective geometry that parabolas and ellipses are essentially the same object.

6 0

3 years ago

A newspaper reports that the population mean annual salary of a full-time college professor in a certain region is exactly $127,

Leya [2.2K]

Answer:

Option B) Fail to reject the null hypothesis that the true population mean annual salary of full-time college professors in the region is equal to $127,000.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = $127,000

Sample mean, $\bar{x}$ = $126,092

Sample size, n = 160

Alpha, α = 0.10

Sample standard deviation, σ = $8,509

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 127000\text{ dollars}\\H_A: \mu \neq 127,000\text{ dollars}$

We use Two-tailed t test to perform this hypothesis.

Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

$t_{stat} = -1.35$

Now, $t_{critical} \text{ at 0.10 level of significance, 159 degree of freedom } = \pm 1.654$

Since,

The calculated t-statistic lies in the acceptance region, we fail to reject and accept the null hypothesis.

Option B) Fail to reject the null hypothesis that the true population mean annual salary of full-time college professors in the region is equal to $127,000.

8 0

3 years ago

Round 7/8 to the nearest half

Masja [62]

7/8 rounded to the nearest half is 1.

3 0

3 years ago