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Harlamova29_29 [7]
2 years ago
5

Billy graphed the system of linear equations to find an approximate solution. y = A system of equations. y equals negative Start

Fraction 7 over 4 EndFraction x plus StartFraction 5 over 2 EndFraction. y equals StartFraction 3 over 4 EndFraction x minus 3.x + y = x – 3 A coordinate grid with 2 lines. The first line is labeled y equals negative StartFraction 7 over 4 EndFraction x plus StartFraction 5 over 2 EndFraction and passes through the (0, 2.5) and (2.2, negative 1.4). The second line is labeled y equals StartFraction 3 over 4 EndFraction x minus 3 and passes through (0, negative 3, 0.14) and (2.2, negative 1.4) Which points are possible approximations for this system? Select two options. (1.9, 2.5) (2.2, –1.4) (2.2, –1.35) (1.9, 2,2) (1.9, 1.5) Mark this and return
Mathematics
2 answers:
Ahat [919]2 years ago
7 0

Answer:

B, C

Step-by-step explanation:

Elina [12.6K]2 years ago
3 1
1.09!!!!!!!!!!!!!!!!!!!
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Use the alternative curvature formula K=|a x v|/|v|^3 to find the curvature of the following parameterized curves.
neonofarm [45]

Answer:

K=\frac{2}{(4t^{2}+1)^{\frac{3}{2}}}

Step-by-step explanation:

First of all, we calculate v and a as:

v(t)=\frac{dr(t)}{dt}=(2t,1,0)

a(t)=\frac{dv(t)}{dt}=(2,0,0)

after that, we compute the cross product and we replace in the formula for k

a(t) X v(t) = (0,0,2)

| a(t) X v(t) | = 2

| v |^{3} = (4t^{2}+1)^{\frac{3}{2}}

Hence we have

K=\frac{2}{(4t^{2}+1)^{\frac{3}{2}}}

I hope this is useful for you

regards

8 0
2 years ago
Shane and Abha earned a team badge that required their team to collect no less than 2000 cans for recycling. Abha collected 178
Katarina [22]

Answer:

2x+178\geq 2000

Step-by-step explanation:

Let, the number of cans collected by Shane = x.

So, the number of cans collected by Abha = x + 178.

Since, at least 2000 cans are required to be collected.

Thus, we have the inequality,

Number of cans by Shane + Number of cans by Abha ≥ 2000.

i.e. x+(x+178)\geq 2000

i.e. 2x+178\geq 2000

Thus, the required inequality is 2x+178\geq 2000.

4 0
2 years ago
Which represents the solution to the absolute value equation? 5|2x-4|+1=11
lora16 [44]

simplify-   10x+20+1=11

simplify-   10x+21=11

x=-1

4 0
2 years ago
A shark began at 172.5 meters below sea level and then swam up 137.1 meters where is the sharks location now relation to sea lev
shutvik [7]

Answer:34.4

Step-by-step explanation:

172.5-137.1=34.4

8 0
1 year ago
Annabelle measures the sides of 15 right triangles and, based on her observations, she concludes that for any right triangle the
saul85 [17]

Answer: Annabelle is using  the a measure of central tendency defined as the Mode.

Step-by-step explanation: A measure of central tendency in its simplest definition is a single value or measure that can safely be used to represent all members belonging to an entire set of given data. Hence, as a good illustration, one figure can be used to confidently represent all other ninety nine figures where a set of one hundred figures were given.

The mean, median and mode are commonly accepted measures of central tendency.

The mode is the most frequently occurring value in a given set of data. As such, the modal value is statistically acceptable as a representative of the entire set of values or data.

If Annabelle measures the sides of 15 right triangles and based on her observations, she concludes that for any right  triangle the sum of the squares of the two legs is equal to the square of the hypotenuse, what she has done is taking the most frequently occurring value, and in her experiment, the most frequent of all observed data satisfies the Pythagorean Theorem.

That is why Annabelle can confidently make her assumption.

6 0
2 years ago
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