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Nataly_w [17]
3 years ago
8

(-1)^2 × (-1)^3 × (-1)^5​

Mathematics
1 answer:
____ [38]3 years ago
3 0

Answer:

1

Step-by-step explanation:

(-1)^2 = 1

(-1)^3 = -1

(-1)^5 = -1

(1) (-1) (-1) = 1

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A rectangle has a height of k^2+3k 2 +3k, squared, plus, 3 and a width of k^2+7k 2 +7k, squared, plus, 7. Express the area of th
vlada-n [284]

Answer: k^4+10k^3+21k^2

Step-by-step explanation:

Given

Height of rectangle is h=k^2+3k

Width is w=k^2+7k

The area of the rectangle is given by the multiplication of the height and width

\Rightarrow A=\left(k^2+3k\right)\left(k^2+7k\right)\\\\\Rightarrow A=k^2k^2+k^2\cdot \:7k+3kk^2+3k\cdot \:7k\\\\\Rightarrow A=k^4+10k^3+21k^2

Thus, the area of the rectangle is k^4+10k^3+21k^2.

3 0
3 years ago
Anyone know the answers to these?
Anettt [7]

Answer:

<em>3. No.</em>

<em>4. No, not necessarily.</em>

<em>5. Yes.</em>

Step-by-step explanation:

3. No. With the two triangles, she knows that one angle of each is a right angle. She does not know anything about side lengths. She cannot prove the triangles are congruent.

4. We cannot prove the triangles are congruent. With the perpendicular segments, there is a pair of congruent, right angles. Then there are two pairs of sides that are congruent, but the order is SSA, and SSA does not prove triangles congruent.

5. Using the two sets of perpendicular lines, you have two congruent, right angles. Then you have the other pair of given congruent angles. Finally, segment RT is congruent to itself. This makes AAS. the triangles are congruent.

8 0
4 years ago
Help please?? &lt; 3
Crazy boy [7]

Answer:

i think the answer is "C" (3-left 2, up 5) i may be wrong sry if i am, i tried :|

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
What does y equal according to this
saul85 [17]
It represents -2,but it's not exactly proven to be right
8 0
3 years ago
Landen spent LL hours at the beach last weekend. Matéo spent 15\%15% fewer hours at the beach than Landen did. Which of the foll
ivanzaharov [21]

Answer:   0.85 L or \frac{85L}{100}  or \frac{17L}{20}

Step-by-step explanation:

Since, According to the question,

Landen spent time at the beach last weekend = L hours

And, Matéo spent 15% fewer hours at the beach than Landen did.

Therefore, Number of hours spent by  Matéo = (Time spent by Landen last week - 15 % of the Time spent by Landen last week ) hours

=  85% of the Time spent by Landen last week

= \frac{85\times L}{100}

= \frac{85L}{100}  Hours

= \frac{17L}{20}  Hours

=  0.85 L Hours

8 0
4 years ago
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