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3 years ago

What equals 2 times but adds up to -4

Mathematics

1 answer:

velikii [3]3 years ago

5 0

Answer:

2×-2 maybe but it's a difference with interfere so ues

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Find the angel x in d diagram above with a well structured solution.<br><br>Thanks

Tom [10]

Step-by-step answer:

Please refer to attached image.

1. Quad PQRS is cyclic (all vertices on the same circle), so opposite angles are supplementary, meaning

that

angles QPS and QRS are supplementary =>

QPS+QRS=180 =>

QRS = 180 - 74 = 106

2. Triangle RSQ is isosceles with RS=RQ =>

angles RSQ and RQS are congruent.

3. Angle RSQ = (180 - 106) /2 = 74 / 2 = 37

4. QP is a diameter => angle QSP is a right-angle.

5. From (3) and (4) above,

angle RSP = 37+90 = 127

6. Since PQRS is cyclic, angles RQP and RSP are supplementary =>

RQP+RSP = 180 =>

x + 127 = 180 =>

x = 180 - 127 = 53 degrees.

5 0

3 years ago

12598 round to the nearest thousand

MakcuM [25]

12598 rounded to the nearest thousands is 1260

5 0

3 years ago

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I need help with this duhhh

liubo4ka [24]

Answer:

Step-by-step explanation:

4. (6^10)^-7 is when the exponents should be multiplied

answer is B

5. (7^3)^-2 = (7^-6)

1/7^6 = 1/(7x7x7x7x7x7)

answer is A

2. 11^-4/11^8= 1/11^(8+4) = 1/11^12

answer is A

3. (2^5/3^2)^4= 2^20/3^8

answer is A

4 0

4 years ago

Write the numbers in order from least to greatest -2.1,-2 5/6,-2 2/3,-2.2

OlgaM077 [116]

The question: Write the numbers in order from least to greatest -2.1,-2 5/6,-2 2/3,-2.2

Answer: -2.2, -2 2/3, -2.1, -2 5/6

I think this is correct. Though, if not please tell me and I'll try to fix it.

4 0

3 years ago

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Two groups of students were asked how many hours they spent reading each day. The table below shows the numbers for each group:

marta [7]

Solution:

Data represented as number of hours spent in studying by Group A Students:

1,2,1,1,3,3,2,2,3

Arranging it in ascending order: 1,1,1 ,2, 2, 2, 3, 3, 3,

As number of terms is odd, The median will be middle value of observation.Which is 2.

The Data arranged in ascending order are , (1,1,1,2),2(2,3,3,3).

Median of (1,1,1,2) = $Q_{1}$ =1

Median of (2,3,3,3)= $Q_{3}$ =3

$D_{1}$ =Interquartile Range = $Q_{3}-Q_{1}$ =3-1=2

For Data Set 2,

The Data for group B students are: 3 2 3 2 2 2 1 1 2

Arranging in ascending order: 1,1,2,2,2,2,2,3,3

total number of observation = 9

Median = 2

Arranging the data as : (1,1,2,2) 2,(2,2,3,3)

Median of (1,1,2,2)= Number of observation is 4 which is even , so Median= $Q_{1}$ = $\frac{1+2}{2}=\frac{3}{2}$

Median of (2,2,3,3)= $Q_{3}$ = $\frac{3+2}{2}=\frac{5}{2}$

S=Interquartile Range = $Q_{3}-Q_{1}$ = $\frac{5}{2}-\frac{3}{2}=1$

$D_{1}= S + 1$

Interquartile range for Group A Students =Interquartile range for Group B students + 1

Option (D) The interquartile range for Group A employees is 1 more than the interquartile range for Group B students is true.

8 0

3 years ago

Read 2 more answers