2 years ago

Hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

Mathematics

1 answer:

Lubov Fominskaja [6]2 years ago

8 0

Answer:

helllllllllllllllllllllllllllllp

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How many 90 degree angle does it take to make a full turn

ser-zykov [4K]

Full turn = 360°

Number of 90° = 360 ÷ 90 = 4

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Answer: It takes 4 90° to make a full turn.
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7 0

2 years ago

Read 2 more answers

(Calculus help, 25 points, will give brainliest) Find the sum of the sigma notation below.

Andreyy89

$\displaystyle\sum_{i=3}^{10}(2i-9)=2\sum_{i=3}^{10}i-9\sum_{i=3}^{10}1$

Recall that

$\displaystyle\sum_{i=1}^n1=n$

$\displaystyle\sum_{i=1}^ni=\frac{n(n+1)}2$

Your sums start at $i=3$ , so in order to apply these formulas directly, you need to compensate for the missing first two terms:

$\displaystyle\sum_{i=3}^{10}1=\sum_{i=1}^{10}1-(1+1)=10-2=8$

$\displaystyle\sum_{i=3}^{10}i=\sum_{i=1}^{10}i-(1+2)=\frac{10\cdot11}2-3=52$

$\implies\displaystyle\sum_{i=3}^{10}(2i-9)=2\cdot52-9\cdot8=\boxed{32}$

4 0

2 years ago

You have $4150.in a cookie jar. Each month you spend half of the balance. How much do you have after 4 months? (Round your answe

trasher [3.6K]

Answer:

$259.4

Step-by-step explanation:

$4150/2

$2075/2

$1037.5/2

$518.75/2= $259.375

round to nearest cent = $259.4

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2 years ago

If two angles are complementary and one angle is xº what is the measure of the other angle?

Rainbow [258]

Answer:

Step-by-step explanation:

Measure of second angle = 90° - x°

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2 years ago

Help me with this one pls

Komok [63]

3x + 17 - 5x = 12 - (6x+3)
4x + 17 = 9
4x = -8
X = -2

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2 years ago