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EleoNora [17]
3 years ago
7

What new ideas about mathematics you have learned​

Mathematics
1 answer:
galina1969 [7]3 years ago
5 0

space, space ,space and oh space

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In a class test containing 25 questions, 4 marks are given for every correct answer and (-2)
const2013 [10]

Answer:

(20 x 4)-(5x -2)

=80-10

=70

Step-by-step explanation:

7 0
3 years ago
What is the area of the figure shown?
musickatia [10]

Check the picture below.

now, we're making an assumption that, the two blue shaded region are equal in shape, and thus if that's so, that area above the 14 is 6 and below it is also 6, 14 + 6 + 6 = 26.

so hmm if we simply get the area of the trapezoid and subtract the area of the yellow triangle and the area of the cyan triangle, what's leftover is what we didn't subtract, namely the shaded region.

\textit{area of a trapezoid}\\\\ A=\cfrac{h(a+b)}{2}~~ \begin{cases} h~~=height\\ a,b=\stackrel{parallel~sides}{bases~\hfill }\\[-0.5em] \hrulefill\\ h=15\\ a=14\\ b=26 \end{cases}\implies A=\cfrac{15(14+26)}{2}\implies A=300 \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{\Large Areas}}{\stackrel{trapezoid}{300}~~ - ~~\stackrel{yellow~triangle}{\cfrac{1}{2}(26)(9)}~~ - ~~\stackrel{cyan~triangle}{\cfrac{1}{2}(15)(6)}} \\\\\\ 300~~ - ~~117~~ - ~~45\implies 138\qquad \textit{blue shaded area}

8 0
2 years ago
A $60 sweater is on sale for 25% off. What is the sale price of the sweater?
torisob [31]

Answer:

$45

Step-by-step explanation:

Discounted price = List price - (List price x (percentage / 100))

3 0
3 years ago
Read 2 more answers
Can someone answer these 2 questions please? Thanks
natali 33 [55]
The first one is -12 the second is 10
3 0
3 years ago
Write your answer with an exponent
elena-s [515]

Answer:

{7}^{12}

Step-by-step explanation:

just keep the 7 and add the exponents

6 0
3 years ago
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