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satela [25.4K]
3 years ago
13

Please help :( The picutre is right below worth 20 pionts and will mark brainliest :)

Mathematics
1 answer:
leva [86]3 years ago
4 0

Answer:

perpendicular

Step-by-step explanation:

peripenducular looks like a plus sign. HOPE THIS HELPS!

Branliest...

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True or false question
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The answer should be true
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3 years ago
32^2+42^2<br> pts 4fre<br> yes im aware i spelled it wrong.
Dima020 [189]

Answer:

2788

Step-by-step explanation:

To square a number means to multiply it by itself:

32^2+42^2=32 \times 32+42 \times 42=1024+1764=2788

7 0
3 years ago
Find a • b. u = &lt;8,7&gt;, v=&lt;9,7&gt;
drek231 [11]

Answer:

\large\boxed{\vec{u}\circ\vec{v}=121}

Step-by-step explanation:

\vec{a}=,\ \vec{b}=\\\\\vec{a}\circ\vec{b}=x_ax_b+y_ay_b\\\\====================================\\\\\vec{u}=,\ \vec{v}=\\\\\vec{u}\circ\vec{v}=(8)(9)+(7)(7)=72+49=121

7 0
3 years ago
So confused! I have the answer, but can't understand the explanation. Please help...
andrey2020 [161]
(mx^3+3)*(2x^2+5x+2)-(8x^5+20x^4)=8x^3+6x^2+15x+6 \\ (mx^3*2x^2)+(mx^3*5x)+(mx^3*2)+(3*2x^2)+(3*5x)+(3*2) \\ -8x^5-20x^4=8x^3+6x^2+15x+6\\ \\ 2mx^5+5mx^4+2mx^3+6x^2+15x+6-8x^5-20x^4 \\ =8x^3+6x^2+15x+6 \\ \\ (2m-8) x^{5} +(5m-20) x^{4} +2mx^3+6x^2+15x+6 \\ =8x^3+6x^2+15x+6 \\ \\ (2m-8) x^{5} +(5m-20) x^{4} +(2m-8)x^3=0 \\ (m-4) 2x^{5} +(m-4) 5x^{4} +(m-4)2 x^3=0 \\ (m-4)( 2x^{5} + 5x^{4} +2 x^3)=0 \\ m=4

6 0
3 years ago
Read 2 more answers
A road construction company can repair 1/4 mile of road each day. Road X is 7 ½ miles long, and Road Y is 5 ¾ miles long. How ma
sattari [20]

Answer: 7 days

Step-by-step explanation:

From the question, we are informed that a road construction company can repair 1/4 mile of road each day. We are further told that Road X is 7 ½ miles long. The number of days that it'll take to repair road X will be:

= 7 1/2 ÷ 1/4

= 15/2 × 4/1

= 30 days

Road Y is 5 ¾ miles long. The number of days that it'll take to repair road Y will be:

= 5 3/4 ÷ 1/4

= 23/4 × 4/1

= 23 days

The difference in the number of days that Road X take to repair than Road Y will be:

= 30 days - 23 days

= 7 days

4 0
3 years ago
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