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3 years ago

Mat hyesterday's low temperature was -2.5 degrees

Mathematics

1 answer:

serious [3.7K]3 years ago

5 0

$-2.5 \cdot 5 = -12.5.$

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Need help with 35 thank you so much!!

Yakvenalex [24]

If a pentagon is regular, then all of the sides are the same length. This means that

$5x-4=2x+11 \iff 5x-2x = 11+4 \iff 3x=15 \iff x = 5$

So, if $x=5$ , the lengths of the sides evaluate to

$5x-4 = 25-4=21,\quad 2x+11=10+11=21$

So, all the sides of the pentagon are 21 units long, and AB is 21 units long as well, because all sides are the same length.

3 0

3 years ago

What is the coefficient of x in expansion of (2x-4)^2 ?

Sunny_sXe [5.5K]

Answer:

Step-by-step explanation:

the one which is near to x

8 0

3 years ago

Hello, and good morning ppl!!<br> what´s <img src="https://tex.z-dn.net/?f=%5Csqrt%7B70%2A%2070%7D" id="TexFormula1" title="\sqr

Tamiku [17]

your question :

$\sqrt{70 \times 70}$

here's the solution,

=》

$\sqrt{10 \times 7 \times 10 \times 7}$

=》

$10 \times 7$

=》

$70$

i hope it helped you..... good luch for your English exam.....

4 0

3 years ago

Read 2 more answers

Aralynn is making a quilt. She has used 5.5 balls of yarn and will need 8

miskamm [114]

Answer:

13.5

Step-by-step explanation:

5.5+8=13.5

4 0

3 years ago

Please help ASAP pleaseeeeeeeewwe

Arturiano [62]

Answer:

$AS = 10\sqrt{41} \\WE = 20\\EN = 25\\Part D = 90 - 10\sqrt{41}$

Step-by-step explanation:

AR = 50

AW = WR = EN = 25

RS = 40

RN = NS = WE = 20

$AS=\sqrt{(AR)^2+(RS)^2}\\AS=\sqrt{(50)^2+(40)^2} \\AS=\sqrt{2500+1600} \\AS=\sqrt{4100} \\AS=\sqrt{41*100}\\AS = 10\sqrt{41}$

$AR + RS - AS = 50 + 40 - 10\sqrt{41} \\AR + RS - AS = 90 - 10\sqrt{41}\\AR + RS - AS = 10 (9 - \sqrt{41})$

7 0

3 years ago