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Dima020 [189]
3 years ago
7

If you have two boxes,and in each box is 20 plates, how many boxes do you have

Mathematics
1 answer:
Free_Kalibri [48]3 years ago
4 0
40 just multiply 20 by 2
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if joe ran 390 feet, how many yards did joe run? a. 130 yards b. 210 yards c. 39 yards d. 11,270 yards
Julli [10]
A. There are 3 feet per yard. 

so... 390/3=130 yards 
5 0
3 years ago
Read 2 more answers
-2x^2+5x-4=0 , find the discriminant
BaLLatris [955]

Answer:

The discriminant is -7

Step-by-step explanation:

The discriminant of a quadratic function/equation(ax^2+bx+c = 0) is calculated as:

b^2 -4ac

Here

b is the co-efficient of x

a is the co-efficient of x^2

and c is the constant

Given equation is:

-2x^2+5x-4=0

Here

a = -2

b = 5

c = -4

Putting the values in the formula for discriminant

= b^2 - 4ac\\= (5)^2 - 4(-2)(-4)\\= 25 - 32\\=-7

As the discriminant is negative, the equation has no real solution.

Hence,

The discriminant is -7

5 0
3 years ago
I really need help!!!!!!!!!!!!!!!
ziro4ka [17]
2 one , going up and down
8 0
3 years ago
How do you answer this ?
telo118 [61]
6 x 10 =60
40 x 24=960
maybe 
I REALLY DON'T KNOW
8 0
3 years ago
The measure of each interior angle of a regular 100-gon is (3x + 26.4).<br>What is the value of x?​
Sonbull [250]

\bf \textit{sum of all interior angles in a polygon}\\\\ n\theta = 180(n-2)~~ \begin{cases} n = sides\\ \theta =angle~in\\ \qquad degrees\\[-0.5em] \hrulefill\\ n= 100 \end{cases}\implies \theta 100=180(100-2) \\\\\\ 100\theta = 180(98)\implies 100\theta =17640\implies \theta =\cfrac{17640}{100}\implies \theta = \cfrac{882}{5}

which is pretty much just 176.4°, well, we also know that θ = 3x + 26.4

\bf 176.4 = 3x + 26.4\implies 150 = 3x\implies \cfrac{150}{3}=x\implies 50=x

5 0
3 years ago
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