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3 years ago

Please help I will reward brainliest

Mathematics

1 answer:

ollegr [7]3 years ago

6 0

Answer:

Straight Angle

Explanation:

Def: An obtuse angle is an angle whose measure is greater than 90 degrees but less than 180 degrees. Def: A straight angle is an angle whose measure is exactly 180 degrees. Def: Two angles are congruent if their measures are exactly the same. Def: Two angles are complementary if their measures add up to 90 degrees.

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6. Solve each system of equations. 7x – 12y = 180 7x = 84 b. | -16y = 4x 4x + 27y= 11

soldi70 [24.7K]

Answer:

1: y= -15x

2: in the ss

Step-by-step explanation:

4 0

3 years ago

The spinner is equally likely to land on any of the five sections. A spinner contains 5 equals sections labeled 1, 2, 3, 4, 5. S

Maurinko [17]

Answer:

Three-fifths

Step-by-step explanation:

The number of sections is 5 and the unshaded section is 3 even numbers are 1, 3 and 5. Since 3 is in both cases there are 3 numbers: 1, 3 and 5. So it is three-fifths

8 0

2 years ago

Scores on a test are normally distributed with a mean of 81.2 and a standard deviation of 3.6. What is the probability of a rand

Misha Larkins [42]

Answer:

The probability of a randomly selected student scoring in between 77.6 and 88.4 is 0.8185.

Solution:

Given, Scores on a test are normally distributed with a mean of 81.2

And a standard deviation of 3.6.

We have to find What is the probability of a randomly selected student scoring between 77.6 and 88.4?

For that we are going to subtract probability of getting more than 88.4 from probability of getting more than 77.6

Now probability of getting more than 88.4 = 1 - area of z – score of 88.4

$\mathrm{Now}, \mathrm{z}-\mathrm{score}=\frac{88.4-\mathrm{mean}}{\text {standard deviation}}=\frac{88.4-81.2}{3.6}=\frac{7.2}{3.6}=2$

So, probability of getting more than 88.4 = 1 – area of z- score(2)

= 1 – 0.9772 [using z table values]

= 0.0228.

Now probability of getting more than 77.6 = 1 - area of z – score of 77.6

$\mathrm{Now}, \mathrm{z}-\text { score }=\frac{77.6-\text { mean }}{\text { standard deviation }}=\frac{77.6-81.2}{3.6}=\frac{-3.6}{3.6}=-1$

So, probability of getting more than 77.6 = 1 – area of z- score(-1)

= 1 – 0.1587 [Using z table values]

= 0.8413

Now, probability of getting in between 77.6 and 88.4 = 0.8413 – 0.0228 = 0.8185

Hence, the probability of a randomly selected student getting in between 77.6 and 88.4 is 0.8185.

4 0

3 years ago

3.f(-4) - 3.(2) = Int GA SS

Doss [256]

Answer:

1.7. 9 () “ -- .3 .3 .4 . .9 F 5 XXX Ammo. Phosphate., 1916. . .8 10 0 “ -- .4 .2 .4 . . .9 Essex Fertilizer Co. E 7 Grain, Grass & Potato Fert. . . . . .8 12 0 Yes Passed .

Step-by-step explanation:

1.7. 9 () “ -- .3 .3 .4 . .9 F 5 XXX Ammo. Phosphate., 1916. . .8 10 0 “ -- .4 .2 .4 . . .9 Essex Fertilizer Co. E 7 Grain, Grass & Potato Fert. . . . . .8 12 0 Yes Passed .

8 0

3 years ago

A strand of lights has 50 bulbs and eight of them are burned out what is the ratio of total numbers of the bulbs to the bulbs th

Strike441 [17]

Answer:

B.50:8

Step-by-step explanation:

6 0

3 years ago