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2 years ago

What is the lenth of AB

Mathematics

1 answer:

adelina 88 [10]2 years ago

8 0

Answer:

There's no pic, mate

Step-by-step explanation:

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Middle School teaches 6th, 7th, and 8th grade classes. The sixth grade has 318 students, the 7th has 286 students, and the 8th h

Ierofanga [76]

Answer:

$3185

Step-by-step explanation:

Multiply the number of grade 6 students by the money needed ($3.50) and you get 318x3.50=1113

Multiply the number of grade 7 students by the money needed ($3.50) and you get 286x3.50=1001

Multiply the number of grade 8 students by the money needed ($3.50) and you get 306x3.50=1071

Add all the total amounts together and you get $3185

8 0

3 years ago

21) What is the slope of the perpendicular lines?<br> y = 5x

Pachacha [2.7K]

The slope of the perpendicular line of y=5x would be -1/5, since slopes are always opposite reciprocals when they are perpendicular to each other.

8 0

2 years ago

Describe the sequence of transformations that demonstrates the congruence between triangle ABC and triangle A´B´C´.

Shtirlitz [24]

Reflecting over the x axis means to perform the following tranformation:

$(x,y) \to (x,-y)$

So, you maintain the x coordinate, and change the sign of the y coordinate. The vertices become

$A=(-4, 4)\to \hat{A} = (-4,-4),\quad B=(-2, 3)\to \hat{B} = (-2,-3),\quad C=(0, 7) \to \hat{C}=(0,-7)$

Translating 3 units to the left means to perform the following transformation:

$(x,y) \to (x-3,y)$

So, you maintain the y coordinate, and decrease the x coordinate by 3. The vertices become

$\hat{A} = (-4,-4) \to (-7,-4),\quad \hat{B} = (-2,-3)\to (-5,-3),\quad \hat{C}=(0,-7)\to (-3,-7)$

So, as you can see, after these two transformation, the vertices A, B and C become A', B' and C'.

4 0

2 years ago

What is the solution to the equation 6t=144

Grace [21]

Isolate the variable by dividing both sides by 6:
t=144/6=24

The solution is t=24

Good luck!

8 0

2 years ago

Read 2 more answers

Select the correct answer. Jason inherited a piece of land from his great-uncle. Owners in the area claim that there is a 45% ch

GREYUIT [131]

Answer:

Option A 0.1698

Step-by-step explanation:

Given that Jason has a chance for getting oil as 45%

THe kit he buys show accurate result with 80% probability

Let A1- Event that the land has oil

A2 - Event that the land has no oil

B- The test gives negative result

A1 and A2 are mutually exclusive and exhaustive

P(A1) = 0.45 and P(A2) =0.55

Hence we can use Baye theorem

Then P(B) = P(A1B)+P(A2B)= $0.45(0.20)+0.55(0,80)\\=0.09+0.0.44\\=0.53$

Reqd prob =P(A1/B) =

$\frac{P(A1B)}{P(B)}\\ =\frac{0.09}{0.53}\\\\=0.1698$

3 0

2 years ago