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ser-zykov [4K]
3 years ago
14

Write and simplify the expression for the area of a rectangle with a width of 3 inches and a length that is 8 inches more than x

Mathematics
1 answer:
meriva3 years ago
4 0
3(x+8)
You know that area of a rectangle is length x width. The width you know is 3 and the length is whatever x is plus 8 more inches, therefore it is x+8.
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one number is 4 times a first number. A third number is 100 more than the first number. if the sum of the three numbers is 592 f
kati45 [8]

<u>Answer</u>

1st number = x

2nd number = 4x

3rd number = x + 100

sum of three numbers = 592

x + 4x + x + 100 = 592

6x + 100 = 592

6x = 592 - 100

6x = 492

x = 492/6

x = 82

1st number, x = 82

1st number, x = 822nd number, 4x = 328

1st number, x = 822nd number, 4x = 3283rd number, x+100 = 182

check :

82 + 328 + 182 = 592

pls mark as brainliest. . . ☺

3 0
3 years ago
What is the value of x?<br> 39° (3x)°
Likurg_2 [28]

Answer:

1 because having anything power 0 is 1

5 0
3 years ago
Read 2 more answers
Suppose you are climbing a hill whose shape is given by the equation z = 1400 − 0.005x2 − 0.01y2, where x, y, and z are measured
Anarel [89]
Answer: You start to ascend

Explanation:

Since you are walking due south and the positive y-axis points north, the y-coordinate decreases.

Let 

y' = y-coordinate after walking due south
z' = z-coordinate (or the height) after walking due south

So, the point where you stand after walking due south has a coordinate of (100, y', z'). Moreover,

z' = 1,400 - 0.05(100)^2 - 0.01(y')^2&#10;\\ \boxed{z' = 1350 - 0.01(y')^2}

Since the y-coordinate decreases after walking due south and z' = 1350 - 0.01(y')^2,

y'  \leq 120\\ \Rightarrow (y')^2 \leq 120^2 = 14,400\\ \Rightarrow -0.01(y')^2 \geq -0.01(14,400) = -144\\ \Rightarrow z' = 1,350 - 0.01(y')^2 \geq 1,350 - 0.01(14,400) = 1,206\\ \Rightarrow \boxed{z' \geq 1,206}

So, the height after walking due south exceeds 1,206 meters, which is the previous height before walking due south. Therefore, if you walk due south from point with coordinates (100, 120, 1206), you are ascending.
5 0
3 years ago
A hot air balloon descends from an altitude of 2,000 feet at a constant rate of 90 feet per minute. The graph shows the altitude
SSSSS [86.1K]
Y=90x+2,000

90 is the rate of change because the hot air balloon descends 90 feet per minute.
And 2,000 is the starting point because the hot air balloon started the descent at 2,000 feet.
3 0
3 years ago
Can somebody please help i’ll make you brainlest answerr
RideAnS [48]

Answer:

3

Step-by-step explanation:

subtract

8 0
3 years ago
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