4 years ago

The temperature and Vancouver Yesterday was 15° today it is -5° how much did the temperature decrease?

Mathematics

1 answer:

Crazy boy [7]4 years ago

3 0

Answer:

Step-by-step explanation:

All I did was add 15 and 5 which equals 20 which is the correct answer

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Jill converted the equation of the line 15 x minus 14 y = negative 2 into slope-intercept form and found the slope and y-interce

fgiga [73]

Answer:

hello! in short the answer is B! i took the test and didnt do very good but id thought id share this to help some people!

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3 years ago

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Jake's teacher had 6 calculators for 28 students to use. If the first students to use the calculators are chosen at random, what

marta [7]

Answer:

$\dfrac{3}{14}$ or 21.45%

Step-by-step explanation:

To find the probability that Jake will get a calculator, we simply divide the number of calculators to the number of students in the class.

Probability = $\dfrac{6}{28}$

Probability = $\dfrac{3}{14}$

To find the probability in percentage form, we simply multiply the quotient of $\dfrac{3}{14}$ by 100

$\dfrac{3}{14} =0.2142$

0.2142 x 100 = 21.42%

So Jack has a 21.45% chance of getting a calculator from the teacher.

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4 years ago

Math help please <br> What is the length of AC¯¯¯¯¯ ?

irina1246 [14]

Answer:

AC = 6

Step-by-step explanation:

given ∠A = ∠C then triangle is isosceles with BC = AB, hence

3x - 8 = x + 4 ( subtract x from both sides )

2x - 8 = 4 ( add 8 to both sides )

2x = 12 ( divide both sides by 2 )

x = 6

⇒ AC = x = 6

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3 years ago

When solving an equation in the form ax^2=c by taking square roots, how many solutions will there be?

Illusion [34]

Two solutions

I hope this helps

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3 years ago

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Find the slope of the line tangent to the curve y equals x squaredy=x2 at the point left parenthesis negative 0.7 comma 0.49 rig

dlinn [17]

Answer:

Slope: -1.4

y = -1.4x - 0.49

Step-by-step explanation:

Slope: dy/dx = 2x

x = -0.7

dy/dx = -1.4

Equation of tangent:

y = mx + c

y = -1.4x + c

When x = -0.7, y = 0.49

0.49 = (-1.4)(-0.7) + c

c = -0.49

y = -1.4x - 0.49

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3 years ago