3 years ago

Sandy spent 3 hours on 2 science projects. At this rate, how long would it take her to complete 8 science projects

Mathematics

1 answer:

ycow [4]3 years ago

4 0

Gotta put characters

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Can somebody please help with these two questions?

Nitella [24]

Answer:

#3: x is approximately 0.37, -5.37, #4: x is approximately 4.19, -1.19

Step-by-step explanation:

You can solve using the quadratic equation or by solving with the perfect square

$\frac{-b+/-\sqrt{b^{2}-4ac} }{2a}$ = $x^{2}+5x-2=0\\ \frac{-5+/-\sqrt{5^{2}-4(1)(-2) }}{2(1)}$

x is approximately 0.37, -5.37

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3 years ago

2 a square root of 2 b square root 3 parentheses for a square root 2 + 380 square root 2 - 80 parentheses equal

velikii [3]

2√2

= 2√2

√3(√2+380√2-80)

= -80√3+381√6

I hope that's help and sorry for the late answer !

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3 years ago

When cut into 10 equal slices each slice is 1/10 of the pizza Express how much of the pizza 7 of these slices would be in decima

alexira [117]

Answer:

0.7

Step-by-step explanation:

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3 years ago

Find the diameter of a circle with a circumference of 15.71 yards

Nata [24]

Step-by-step explanation:

Circumference = Diameter · π

15.71 = d · 3.14

15.71 ÷ 3.14 = 5.003...

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4 years ago

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A rectangle is drawn with the dimensions shown. The area is listed inside each rectangle.

lutik1710 [3]

Answer:

the awnser is 45

Step-by-step explanation:

i just took this test on masery connect

5 0

3 years ago