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kkurt [141]
1 year ago
7

Write an interval using interval notation to describe the set of values shown above.

Mathematics
1 answer:
Nady [450]1 year ago
5 0

Answer:

(-4,3)

Step-by-step explanation:

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Sam is moving bags of soil from a loading dock into a storeroom. The top soil weighs 40 pounds per bag and the mulch weighs 20 p
Levart [38]

Answer:

40x+20y\leq 480

Step-by-step explanation:

Givens

  • The top soil weighs 40 pounds per bag.
  • The mulch weighs 20 pounds per bag.
  • The cart can only carry up to 480 pounds.

Notice that the restriction is a maximum of 480 pounds, that means the inequality must include the sign \leq.

Now, let's call x the top soil and y the mulch, the inequality that represents this problem, would be

40x+20y\leq 480

3 0
3 years ago
Read 2 more answers
7r²+9=1 quadratic equation.
dezoksy [38]
<span>7r²+9=1 

</span><span>the equation is contradictory, just to prove

7r</span>² + 9 = 1

7r² + 9 -1 = 0

7r² + 8 = 0

<span>We write the equation in the form of products of
</span>
7 * (r² + 8/7) = 0

<span>the product is equal to 0 when one of the factors is zero
</span>
7≠0      ∨      (r² + 8/7) = 0
                     r² ≠ - 8/7
<span>any number squared is not negative.

</span><span>We proved that none of the factors is not equal to zero , so the right side of the equation is not equal to the left . The equation is contradictory</span>
7 0
3 years ago
You are shopping for clothes. You decide to buy jeans from a store that is offering a special of $40.55 for a pair of jeans. You
abruzzese [7]

Answer:

$243.30

Step-by-step explanation:

40.55 * 6 = 243.3

= $243.30

4 0
3 years ago
A line with a slope of 5 passes through the point (0,0). What is its equation in slope-intercept form?
Masja [62]

Answer:

y=5x or y=5x+0

Step-by-step explanation:

there is a slope of 5 and it has no setoff

5 0
2 years ago
kittens weigh about 100 grams when born and gain 7 to 15 grams per day. If a kitten weighs 100 grams at birth and gained 8 grams
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After 25 days. 300=triple 100+8x=300. is that 20 words?
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3 years ago
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