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Mice21 [21]
3 years ago
7

Plssssss heeeelp (NOOOOO LINKS!)

Mathematics
1 answer:
ahrayia [7]3 years ago
8 0
-40) No
0) No
-5) No
13) Yes
21)Yes
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Pleaseee I need help on this one too
erastova [34]
I can't exactly see if the 10 at the end is negative, but I'm going to assume that it is.
10x - 6y = 8
5x - 10y = -10
= (2, 2)
} I hope this helped! {
5 0
3 years ago
the temperature in an experiment is increased at a constant rate over a period of time until the temperature reaches 0 degrees c
dsp73

Answer:

x = 28 (So it takes 28 hours for the temperature to reach 0°C.)

y = -70 (So the temperature when the experiment begins is −70°C.)

Step-by-step explanation:

To find the the x value, you remove the y value or replace it with 0.

0 = 5/2x - 70

Next you move the variable.

70 (2/5) = x           (multiply 70 by 2 to get 140 and divide that by 5)

And now you simplify to get:

28

To find the y value, you remove the x value or replace it with 0.

y =  0 - 70

And now you simplify to get:

-70

x = 28

y = -70

7 0
2 years ago
Read 2 more answers
Factor the polynomial 3x4 – 2x2 + 15x2 - 10 by grouping.
prohojiy [21]

Answer:

see explanation

Step-by-step explanation:

Given

3x^{4} - 2x² + 15x² - 10

Factor the first/second and third/fourth terms )

= x²(3x² - 2) + 5(3x² - 2) ← factor out (3x² - 2) from each term

= (3x² - 2)(x² + 5)

4 0
3 years ago
Read 2 more answers
How would the decimal point move to solve the equation 610 ÷ 103 = ________?
snow_tiger [21]
It moves to the left no matter what it is, but i’m not sure how many bec there’s not alr a decimal
7 0
3 years ago
Read 2 more answers
A quadrilateral is shown. One pair of opposite sides have lengths of 10 inches and (x + 2) inches. The other pair of opposite si
ziro4ka [17]

Step-by-step explanation:

Yes, one pair of opposite sides could measure 10 inches. and the other pair could measure 13 inches

3 0
2 years ago
Read 2 more answers
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