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3 years ago

Pls help meeee and if y’all want give me yalls snap or sum cus I need more help

Mathematics

2 answers:

Andreas93 [3]3 years ago

8 0

Answer:

ooooooooooooo more help...

Step-by-step explanation:

anyways join my meet and ill give u my number

pls j0!n me

mnv-dyzw-eov

there will be nothing unsafe or inappropriate

velikii [3]3 years ago

3 0

Answer:

30+10 which equals 40

Step-by-step explanation:

jsdghwhi

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√(6+x-x²)=9 I have to put this just to submit it.

Sergio [31]

We know that it must equal 9, and that we do x•x-x+6 and find the square root

4 0

3 years ago

Idk wat to do..... ........

oksano4ka [1.4K]

Answer:

Mean : 95

Median : 85

Mode : 90

Part B : Impossible

Step-by-step explanation:

We can make an equation to find the mean using the first 5 history test scores.

$85=\frac{80+75+90+75+95+n}{6} \\ \\ 85=\frac{415+n}{6} \\ \\ 510=415+n \\ \\ n=95$

So a 95 would be needed to have a mean of 85.

Next, the median.

First, we sort the first 5 history scores from least to greatest.

We get 75, 75, 80, 90, 95.

Since, 80 is the middle value, it will be used in the calculation of the median.

We can make an equation with this.

$82.5=\frac{80+n}{2} \\ \\ 165=80+n \\ \\ n=85$

So a score a 85 would be needed to have a median of 82.5

Thirdly, the mode.

Since 90 is already in the set once, we can just have Maliah score another 90 to make 90 the mode (with the exception of 75 of course).

Finally, Part B.

We can use the equation we had for the first mean calculation but change 85 to 90.

$90=\frac{80+75+90+75+95+n}{6} \\ \\ 90=\frac{415+n}{6} \\ \\ 540=415+n \\ \\ n=125$

So Maliah would need a score of 125 to make her mean score 90, but since the range is only from 0-100, it is impossible.

8 0

3 years ago

A 25 foot ladder is leaning against a house. If the angle of Elevation of the ladder is 72 degrees:

coldgirl [10]

Answer:

1. 23.8

2. 7.7

Step-by-step explanation:

for the first blank

use sin because x is opposite and 25 is hypotenuse

set up an equation:

sin(72)= (x/25)

multiply both sides by 25:

25(sin(72))= (x/25)25

25(sin(72))= x

multiply 25 by sin(72):

23.8 = x

for the second blank

use cos because x is adjacent and 25 us hypotenuse

set up an equation:

cos(72)= (x/25)

multiply both sides by 25:

25(cos(72))= (x/25)25

25(cos(72))= x

multiply 25 by cos(72):

7.7= x

3 0

3 years ago

20 + 27x + 9x^2 = (?) (3x + 5)

DiKsa [7]

Answer:

(3x + 4)

Step-by-step explanation:

9x²+27x+20 can be factored out to (3x + 4)(3x + 5)

7 0

3 years ago

The additive inverse of (-2x + 4) is __________.

monitta

Answer:

2x - 4

Step-by-step explanation:

Additive inverse of -2x + 4 = 2x - 4

To find the additive inverse, change the sign of each term

6 0

3 years ago