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valina [46]
3 years ago
7

A carpenter has a 12-foot board. He cuts off a piece that is three

Mathematics
1 answer:
KatRina [158]3 years ago
3 0
25 percent of the board
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Mr. West is standing on a cliff that is 25 1/5meters above the surface of the ocean. He spots a dolphin that is 2 3/5 meters und
zhenek [66]

Answer:

Total distance from Mr. West to dolphin =27\frac{4}{5}\ meters

Step-by-step explanation:

Height of cliff on which Mr. West is standing above the surface of ocean =25 \frac{1}{5} \ meters

Mr. West spot the dolphin under the water at a depth of =  2\frac{3}{5} \ meters

∴ Total distance from Mr. West to dolphin=(25 \frac{1}{5}+2\frac{3}{5})\ meters

Adding mixed numbers

(25 \frac{1}{5}+2\frac{3}{5})

Adding whole numbers first.

=25+2+\frac{1}{5}+\frac{3}{5}\\=27+\frac{1}{5}+\frac{3}{5}

Adding fractions by taking LCD.

=27+\frac{1+3}{5}\\=27+\frac{4}{5}\\=27\frac{4}{5}\ meters

5 0
3 years ago
One solution to a quadratic function, h, is given.
Margaret [11]

Answer:

B. The other solution to function h is -4-i\,7.

Step-by-step explanation:

From Algebra, we remember that quadratic functions of the form a\cdot x^{2}+b\cdot x + c has solutions of the form:

x = \frac{-b\pm \sqrt{b^{2}-4\cdot a\cdot c}}{2\cdot a}, where both are complex if and only if \sqrt{b^{2}-4\cdot a \cdot c}< 0.

Hence, if one solution of the quadratic function is -4+i\,7, then the other solution is -4-i\,7. The correct answer is B.

7 0
3 years ago
9x + Зу = 9<br> X and y intercept
leonid [27]

Answer:

x intercept: (1,0)

y intercept: (0,3)

Step-by-step explanation: Substitute variables for 0 and solve

4 0
2 years ago
Read 2 more answers
Pleaseeeee helppppp I’ll mark you brainlist
SashulF [63]
I’m not good at maths thank me later
5 0
2 years ago
Y/8 = -7 ? What is y ?
Nana76 [90]
Y = -56 i believe :)
8 0
3 years ago
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