3 years ago

I need the reasoning?

Mathematics

1 answer:

morpeh [17]3 years ago

6 0

Answer:

2. This is only true when x=-3.

3. This is only true when x=3.

4. This is only true when x=12.

5. This has no solution.

6. This has an infinite number of solutions.

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A quadrilateral has angles measuring 105°,80°and 45°.What is the measure of the fouth angle?

Firdavs [7]

Well a Quadralateral is 360 degrees so you add all em up and get 230 so 360-230= 130 degrees

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3 years ago

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Sarah has three more than four times the money that Jessica has. Together they have $72. How

hoa [83]

Answer:

Jessica has $13,80 and Sarah has $58.20.

Step-by-step explanation:

Let j be the amount of money that Jessica has.

Let s be the amount of money that Sarah has.

s + j = 72

Since Sarah has 3 more than 4 times what Jessica has...

s = 4j + 3

So 4j + 3 + j = 72

5j = 69

j = 13.8

So Jessica has $13,80.

Therefore Sarah has $58.20.

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3 years ago

What is 1,017 square feet of lawn mowed in 9 minutes written as a unit rate per hour

d1i1m1o1n [39]

The rate will be:
(area mowed)/(time taken)
=1017/9
=113 sq. feet/ min

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4 years ago

5. The volleyball team has a double-header on Friday. The probability that they

Nikolay [14]

Answer: 54.29%

Step-by-step explanation:

Given: The probability that they will win both games is 38%.

i.e. P( both games will win) =0.38

The probability that they will win just the first game is 70%.

P(first game will win) = 0.70

To find : P(second game will win| first game will win)

Using formula: $P(B|A)=\dfrac{P(\text{both A and B})}{P(A)}$

So, P(second game will win| first game will win) = $\dfrac{\text{ P( both games will win)}}{\text{P(first game will win)}}$

$=\frac{0.38}{0.70}\approx0.5429=54.29\%$

Hence, the required probability = 54.29%

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3 years ago

-8x+4y=-3

Lisa [10]

A) slope= -3/4, y-intercept= -2
From my calculations

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3 years ago

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