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MaRussiya [10]
2 years ago
14

A)15.8 inches B) 17.8 inches C)16.2 inches D)14.8 inches

Mathematics
1 answer:
Anna007 [38]2 years ago
5 0

Answer:

B

Step-by-step explanation:

Use pythagorean theorem

4^2+5^2=AC^2, AC= 6.4

7^2+9^2=CB^2, CB=11.4

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a craftsman drill is on sale for $99.99. If the sales tax rate is 7%, how much will molly have to pay for the drill?
Nadya [2.5K]
99.99 x (7%/100)= 6.9993
99.99+6.9993= 106.9893 (round up)
ANWSER- $106.99
Hope this helped.
8 0
3 years ago
John and Kamira are playing a game. John's score (J) and Kamira's score (K) after round 1 are shown on the number line.
IRINA_888 [86]

Complete question :

John and Kamira are playing a game. John's score (J) and Kamira's score (K) after round 1 are shown on the number line.

The score recorded at the end of the first round is 2.

What could this score represent?

Options :

the sum of John's score and Kamira's score

the difference between John's score and Kamira's score

the absolute value of the difference of John's score and Kamira's score

the sum of the absolute value of John's score and the absolute value of Kamira's score

Answer:

the sum of John's score and Kamira's score

Step-by-step explanation:

Given that :

The score recorded at the end of the round is 2

From the attached number line :

John's score = - 5

Kamira's score = 7

Sum = - 5 + 7 = 2

Difference = - 5 - 7 = - 12

Sum of absolute value = 5 + 7 = 12

absolute value of difference = 12

3 0
3 years ago
Read 2 more answers
X ^2+3x+2<br><br><br> I need help with this asap thank you!!!!!!!!!
Masja [62]

Answer:

(x+1) (x+2)

Step-by-step explanation:

I this is it? If you meant x to the second power than I think this is the answer

8 0
3 years ago
After t seconds a ball tossed In the air from the ground level reaches a height and of h feet given by the function h(t)=144t-16
Lana71 [14]

Answer:

Check the explantion

Step-by-step explanation:

H(t) represent the height of the ball after t seconds.

1)

In order to figure the maximum height of the ball we must minupulate this equation into a form where we can easily find the maximum height.

We can also see this parabola will be downward concaved because it has a negative coefficent for the t^2 term.

a) Let's Manipulate!

Vertex form is a form where we can easily tell the maximum and minimum points. To get in into Vertex form we just need to complete the sqaure.

Lets reanrage the terms

h(t)= -16t^2+144t

Undo the distrubitive propety

h(t)= -16(t^2-9t+20.25)+324

Add and subtract 324.

h(t) = -16(t-4.5)^2+324

COmplete the square.

b) Almost done!

We can now see that the stuff with the brackets is always positive/zero because any real number sqaured is a positive/zero. But than we multiply the positive stuff by a negative number (-16) so its now all negative.

The only exception is when its zero.

And off course if we add 324 to zero its always going to be greater than 324 + a negative number. To get the first term to be zero we can have t = 4.5.

c) Proove it!

h(4.5) = -16(4.5-4.5)^2+324

=324

d) Double Check by graphing!

(Its a attach screenshote by the way)

e) Answer:

The ball will reach its maximum height after 4.5 seconds.

Hoped this helped!,

JoeLouis2

4 0
3 years ago
How to prove the isosceles triangle
expeople1 [14]

Answer:

2 angles have the same °

2 sides are the same length

6 0
2 years ago
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