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2 years ago

I need these three and they shouldn’t be too hard.

Mathematics

1 answer:

kondor19780726 [428]2 years ago

4 0

Answer:

i dont know

Step-by-step explanation:

sorry my man my school is still just going into these kind of questions ):

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If f(x) = -2x^2 + 3 then f(-5) = ??

Sladkaya [172]

F(-5)= -2x^2+3

-5*-5=25

25*-2=-50

F=-50+3

F=-47

5 0

2 years ago

What is the standard form of this number? 700,000 + 30,000 + 1,000 + 40 + 6

slega [8]

Answer:

731 046

Step-by-step explanation:

put the unit it it's correct value position

7 0

2 years ago

What is the exact distance from (-5,1) to (3,0).

Ilya [14]

Answer:

The distance between the two points is $\sqrt{65} \ \text{units}.$

Step-by-step explanation:

In order to find the distance between two coordinate pairs, we can use the distance formula:

$\displaystyle \bullet \ \ \ d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Our coordinate pairs need to be labeled accordingly, so we can use this naming system:

$\bullet \ \ \ (x_1, y_1), (x_2, y_2)$

This assigns a name to our points:

$x_1 = -5$
$y_1 = 1$
$x_2 = 3$
$y_2 = 0$

Therefore, we can plug these into the formula and solve:

$d=\sqrt{(3-(-5))^2+(0-1)^2}\\\\d=\sqrt{(8)^2+(-1)^2}\\\\d=\sqrt{8^2+1^2}\\\\d=\sqrt{64+1}\\\\d=\sqrt{65}$

Therefore, the distance between the two points is $\sqrt{65} \ \text{units}$ .

5 0

2 years ago

HELP ME PLS NEED IT QOUIKC

nexus9112 [7]

Answer: 7.08 cm2

Step-by-step explanation:

6 0

2 years ago

A bag contains 10 marbles: 3 are green, 2 are red, and 5 are blue. Jose chooses a marble at random, and without putting it back,

Ludmilka [50]

We know that
g=3
r=2
b=5
total marbies=g+r+b------> 3+2+5----> 10

a) probability that the first marble is red
P(red)=r/total marbies------------> 2/10-----> 1/5

b) probability that the second marble is blue
in this case total marbles-------> 9
P(blue)=b/total marbles----------> 5/9

c) the probability that the first marble is red and the second is blue
(1/5)*(5/9)=1/9

the answer is
1/9

6 0

3 years ago