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Kitty [74]
2 years ago
7

Round the nearest percentage 20 students to 30 students

Mathematics
2 answers:
aalyn [17]2 years ago
7 0

Answer:

20/30 = 66%

or

20 to 30 would be a 50% increase

Step-by-step explanation:

hope this helps

IRINA_888 [86]2 years ago
4 0

Answer:10%

Step-by-step explanation:

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What is the measure of arc QR?<br> 26°<br> 52<br> 104<br> 128°
denis23 [38]

The answer to this question is option <u>C. </u><u><em>104 °</em></u>

(Late answer!)

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3 years ago
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The n term of a geometric sequence is denoted by Tn and the sum of the first n terms is denoted by Sn.Given T6-T4=5/2 and S5-S3=
Leno4ka [110]
1 step: S_{5}=T_{1}+T_{2}+T_{3}+T_{4}+T_{5}, S_{3}=T_{1}+T_{2}+T_{3}, then
 S_{5}-S_{3}=T_{4}+T_{5}=5.

2 step: T_{n}=T_{1}*q^{n-1}, then 
T_{6}=T_{1}*q^{5}
T_{5}=T_{1}*q^{4}
T_{4}=T_{1}*q^{3}
T_{3}=T_{1}*q^{2}
and \left \{ {{T_{6}-T_{4}= \frac{5}{2} } \atop {T_{5}+T_{4}=5}} \right. will have form \left \{ {{T_1*q^{5}-T_{1}*q^{3}= \frac{5}{2} } \atop {T_{1}*q^{4}+T_{1}*q^{3}=5} \right..

3 step: Solve this system  \left \{ {{T_1*q^{3}*(q^{2}-1)= \frac{5}{2} } \atop {T_{1}*q^{3}*(q+1)=5} \right. and dividing first equation on second we obtain \frac{q^{2}-1}{q+1}= \frac{ \frac{5}{2} }{5}. So, \frac{(q-1)(q+1)}{q+1} = \frac{1}{2} and q-1= \frac{1}{2}, q= \frac{3}{2} - the common ratio.

4 step: Insert q= \frac{3}{2}into equation T_{1}*q^{3}*(q+1)=5 and obtain T_{1}* \frac{27}{8}*( \frac{3}{2}+1 ) =5, from where T_{1}= \frac{16}{27}.




5 0
3 years ago
Write an equation parallel to 5x-4y=4 that passes through the point (-8,2)
Yuri [45]

Converting to  slope intercept form:-

5x - 4y = 4

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y = 5/4 x - 1  so the slope of the line = 5/4

Finding the line that passes through ( -8, 2) with the same slope:-

y - 2 = 5/4(x  - -8)   (Point-slope form)  

y = 5/4x + 10 + 2

y = 5/4 x + 12 is the answer is slope intercept form

In standard form :-

4y = 5x + 48

5x - 4y = -48   is the answer is standard form


5 0
3 years ago
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Enter the decimal equivalent of 9/12
N76 [4]

Answer:

0.75

Step-by-step explanation:

9/12 = 0.75

7 0
3 years ago
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G(x)=8x²+5x+6 como se resuelve está operasion​
Debora [2.8K]

I don't know exactly what you want to know about this operation so I will put multiple answers.

No sé exactamente qué quiere saber sobre esta operación, así que pondré varias respuestas.

x-intercept =   Nothing  

y-intercept  =   ( 0 ,  6 )

Axis of symmetry = -\frac{5}{16}

Vertex  (-\frac{5}{16}, \frac{167}{32})

Parabola opens up and the Vertex is the minimum

6 0
2 years ago
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