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3 years ago

Solve log (x + 1) = –x2 + 10 by graphing

Mathematics

2 answers:

irga5000 [103]3 years ago

5 0

Answers on edguinity are y1 = –x2 + 10 and y2 = log (x + 1).

Anit [1.1K]3 years ago

3 0

Your answer would be x = 3.0645

CHECK
log (3.0645 + 1) ?=? -(3.0645)2 + 10
log 4.0645 ?=? -9.3912 + 10
0.609 ?=? 0.609

Hope this helps!

So in short your answer is x = 3.0645

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Finding missing angles

Bingel [31]

Answer:

Step-by-step explanation:

Since we see the whole angle is 90° and it's split into two smaller angles, 7x° and 11x°, then we can conclude that 7x°+11x°=90°

*And x=5

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3 years ago

Three friends said their heights were 5 and start fraction 13 over 30 end fraction feet, 5 and one-sixth feet, and 5 and start f

KengaRu [80]

Answer:

$5\frac{1}{6} < 5\frac{13}{30} < 5\frac{68}{90}$

Step-by-step explanation:

Represent the friends with A, B and C

$A = 5\frac{13}{30}$

$B = 5\frac{1}{6}$

$C = 5\frac{68}{90}$

Required

Order from least to highest

First, we convert the given parameters to decimal

$A = 5\frac{13}{30}$

$A = 5 + \frac{13}{30}$

$A = 5 + 0.43$

$A = 5.43$

$B = 5\frac{1}{6}$

$B = 5 + \frac{1}{6}$

$B = 5 + 0.17$

$B = 5.17$

$C = 5\frac{68}{90}$

$C = 5 + \frac{68}{90}$

$C = 5 + 0.76$

$C = 5.76$

So, we have:

$A = 5.43$ $B = 5.17$ $C = 5.76$

Order from least to greatest

$B = 5.17$ $A = 5.43$ $C = 5.76$

Replace them with the original values

$B = 5\frac{1}{6}$ $A = 5\frac{13}{30}$ $C = 5\frac{68}{90}$

Hence, the correct order is:

$5\frac{1}{6} < 5\frac{13}{30} < 5\frac{68}{90}$

5 0

3 years ago

Read 2 more answers

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3 years ago

Please help with this

Free_Kalibri [48]

Answer:

$S_{25}=555$

Step-by-step explanation:

Given that,

In an AP, the 6th term is 39 i.e.

$a_6=a+5d\\\\39=a+5d\ ....(1)$

In the same AP, the 19th term is 7.8 i.e.

$a_{19}=a+18d\\\\7.8=a+18d\ ......(2)$

Subtract equation (1) from (2).

7.8 - 39 = a+18d - (a+5d)

-31.2 = a +18d-a-5d

-31.2 = 13d

d = -2.4

Put the value of d in equation (!).

39 = a+5(-2.4)

39 = a- 12

a = 39+12

a = 51

The sum of n terms of an AP is given by :

$S_n=\dfrac{n}{2}[2a+(n-1)d]$

Put n = 25 and respected values,

$S_{25}=\dfrac{25}{2}[2(51)+24(-2.4)]\\\\=555$

Hence, the sum of first 25 terms of the AP is equal to 555.

6 0

3 years ago

Please help due in the morning

777dan777 [17]

Answer:

A=45 square inches

Step-by-step explanation:

First find the height using Trig

Tan(45)=x/6

x=6tan(45)

x=6

Then area of a parallellogram is base x height so

A=7.5 x 6

A=45 square inches

3 0

3 years ago