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3 years ago

Guys help me please

Mathematics

1 answer:

Svetlanka [38]3 years ago

7 0

I think your answers are a b and c but I’m not exactly sure, sorryy:)

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Scott earned 20 points more on his most recent math test than he earned on the previous test. If he earned at least 80 points on

NARA [144]

9514 1404 393

Answer:

s ≥ 60

Step-by-step explanation:

If Scott earned 20 points more on this test, then he earned 20 points less on the last test. 20 points less than "at least 80" is "at least 60."

s ≥ 60

7 0

3 years ago

Evaluate the expression for s=4 and t=8

Andru [333]

Whats the expression so you can plug those numbers in.

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3 years ago

Read 2 more answers

Calculate the resistance of a 270-cm length of copper wire with a 0.030-cm2 cross-sectional area. ( = 1.8 · 10-6 ohm-cm) R = ___

devlian [24]

Answer:

Given:-

The length of copper wire (L) = 270 cm

Area of cross-sectional (A) = 0.030 $cm^2$

and specific resistance (ρ) = $1.8 \times 10^{-6}$ ohm-cm.

Use the formula R=(Specific resistance*L)/A, to calculate the Resistance(R)

then, $R=\frac{1.8 \times 10^{-6} \times 270}{0.030}$ ohm

Simplify:

R = 0.0162 ohm = $1.62\times 10^{-2}$ ohm

Therefore, the resistance of copper wire is, $1.62\times 10^{-2}$ Ω

8 0

3 years ago

I'll give 100 brainly points, i just need help...plz

Solnce55 [7]

Answer:

A. $(x^{2/7})(y^{-3/5})$

Step-by-step explanation:

The numerator is:

$\sqrt[7]{x^2} = (x^2)^{1/7} = x^{2/7}\\$

The denominator is:

$\sqrt[5]{y^3} = (y^3)^{1/5} = y^{3/5}$

The fraction is equivalent to:

$\frac{x^{2/7}}{y^{3/5}} =$
$(x^{2/7})(y^{-3/5})$

Correct choice is A

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3 years ago

Which point is a solution to the inequality? (–2, 1) (–1, 1) (0, One-half) (3, One-half)

aliina [53]

Answer:Answer is D (3,1/2)

Step-by-step explanation:

It was right on edg.

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3 years ago