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3 years ago

What is the equation of the line that is perpendicular to the line x=-2 and passes through the point (-5, 4)?

Mathematics

1 answer:

slava [35]3 years ago

3 0

y = 4

because the original is a vertical, you need a horizontal line and the point it goes through is (-5,4) so it has to be y = 4

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What number is 50 % of 6/5

Pavel [41]

Answer:

3/5.

Since the numerator is an even number, you can simply remove half of it.

3 0

3 years ago

The quality control manager of a light bulb factory needs to estimate the average life of a large shipment of light bulbs. The p

eimsori [14]

Answer:

b) yes

The manufacturer has the right to state that the light bulbs last on average 400 hours

Step-by-step explanation:

Explanation:-

Given sample size 'n' = 64

Given standard deviation of the Population (σ)=100

Mean of the sample (x⁻) = 350 hours

95% of confidence interval is determined by

$(x^{-} -Z_{0.95} \frac{S.D}{\sqrt{n} } , x^{-} +Z_{0.95} \frac{S.D}{\sqrt{n} } )$

( $(350 -1.96 \frac{100}{\sqrt{64} } , 350+1.96\frac{100}{\sqrt{64} } )$

(350-24.5 , 350+24.5)

(325.5 , 374.5)

Conclusion:-

Yes

The manufacturer has the right to state that the light bulbs last on average 400 hours

4 0

3 years ago

What is the area of the parallelogram? Show your work. (5 points)

stepan [7]

Part A. The formula for finding the area of a parallelogram is A=bh where A is the area, b is the base and h is height.
A=bh where b=8 feet ,h=3/4 foot and A=?
A=8*3/4
A=6 feet The area of the parallelogram is 6 feet square
Part B.You can decompose a parallelogram into two triangles by drawing a diagonal from one end to the another.The formula for finding the area of each triangle is A= 1/2bh where A is area b is base and h is height.Therefore:
A=1/2bh where b=8 h is 3/4 and A=?
A=1/2*8*3/4
A=3 feet square. Therefore the area of each triangle is 3 feet square.

4 0

3 years ago

Which is bigger, a third of 45 or one-sixth c 138?

Ksju [112]

Applying the knowledge of fractions, the bigger one is: one-sixth of 138.

<h3>What are Fractions?</h3>

Fractions can be defined as a part of a digit or number, and are not whole numbers. For example, a third is 1/3, one-sixth is 1/6, which are both fractions.

Therefore, let's evaluate each statement:

1/3 of 45 = 1/3 × 45 = 15

1/6 of 138 = 1/6 × 138 = 23

Therefore, the bigger of the two is: one-sixth of 138.

Learn more about fractions on:

brainly.com/question/17220365

#SPJ1

6 0

2 years ago

A perfect score on a test with 25 questions is 100. Each question is worth the same number of points. How many points is each qu

vivado [14]

Answer:

Step-by-step explanation:

100 divided by 25 equals 4.

4 0

2 years ago