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2 years ago

This k12 question i need help

Mathematics

2 answers:

zhannawk [14.2K]2 years ago

8 0

Answer:

Logo = 72

Step-by-step explanation:

The question is not well worded. Which square is used? I will pick the interior one.

s = 6

Area = s^2

Area = 6^2

Area = 36

1 triangle

h = 3cm

base = 6

Area = 1/2 * b * h

Area = 1/2 * 6 * 3

Area = 9

Area of 4 triangles

Area = 4 * 9 = 36

Total area = 36 + 36 = 72

Yuri [45]2 years ago

4 0

Answer: It's 72.

Step-by-step explanation: They deleted my answer <:(

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6. How many 4 digit odd numbers can be formed if no digit can be repeated?

ale4655 [162]

1, 3, 5, 7, 9 are the possible digits

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2 years ago

Which expression is equivalent to the product of p+7/3 and 6/p , where p is not equal to 0?

vichka [17]

Answer:

$\frac{(6p+14)}{p}$

Step-by-step explanation:

$(p+\frac{7}{3})(\frac{6}{p})$

Making denominator same in first bracket we get

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3 years ago

Read 2 more answers

Can somebody prove this mathmatical induction?

Flauer [41]

Answer:

See explanation

Step-by-step explanation:

1 step:

n=1, then

$\sum \limits_{j=1}^1 2^j=2^1=2\\ \\2(2^1-1)=2(2-1)=2\cdot 1=2$

So, for j=1 this statement is true

2 step:

Assume that for n=k the following statement is true

$\sum \limits_{j=1}^k2^j=2(2^k-1)$

3 step:

Check for n=k+1 whether the statement

$\sum \limits_{j=1}^{k+1}2^j=2(2^{k+1}-1)$

is true.

Start with the left side:

$\sum \limits _{j=1}^{k+1}2^j=\sum \limits _{j=1}^k2^j+2^{k+1}\ \ (\ast)$

According to the 2nd step,

$\sum \limits_{j=1}^k2^j=2(2^k-1)$

Substitute it into the $\ast$

$\sum \limits _{j=1}^{k+1}2^j=\sum \limits _{j=1}^k2^j+2^{k+1}=2(2^k-1)+2^{k+1}=2^{k+1}-2+2^{k+1}=2\cdot 2^{k+1}-2=2^{k+2}-2=2(2^{k+1}-1)$

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4 0

3 years ago

Please help me understand this! Thanks a bunch if you help!

mariarad [96]

Segment BD equals 12<span />

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3 years ago

Find an equation of the line that satisfies the given conditions. through (−5, −7); perpendicular to the line passing through (−

murzikaleks [220]

Answer:

The equation would be y = 2x + 3

Step-by-step explanation:

In order to solve this, we first need to find the slope of the line between (-2, 5) and (2, 3). In order to do this, we use the slope formula.

m(slope) = (y2 - y1)/(x2 - x1)

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Now that we have the original line with a slope of -1/2, we can tell a perpendicular line would have a slope of 2. This is because perpendicular lines have opposite and reciprocal slopes. Now we can use that slope and the given point in point-slope form to get the answer. Be sure to solve for y.

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7 0

3 years ago