2 years ago

Krishne wants to measure the mass and volume of a key. Which tools should she use?

Mathematics

2 answers:

pochemuha2 years ago

7 0

Answer:

water and beaker, and other science tools

Step-by-step explanation:

polet [3.4K]2 years ago

5 0

Answer:

a balance and a beaker of water

hope it helps mark as brainliest

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2 years ago

The height of the tunnel at the center is 35ft, and the vertical clearance must be 21 ft at a point of 8ft from the center. Find

Zinaida [17]

Answer:

y=-0.215x^2+35

Step by Step:

Let, $h=0$ , $k=35$ , $x=8$ , $y=21$

We know that, the general equation of the parabola.

$y-k = a(x-h)^2$

$\Rightarrow y=a(x-h)^2+k .........(i)$

Substitute the value of $h, k, x, y$ in equation $(i)$ and find the value of $a.$

$21=a(8-0)^2+35$

$\Rightarrow 21=a\times 8^2+35$

$\Rightarrow 21=64a+35$

$\Rightarrow 64a=21-35$

$\Rightarrow 64a=-14$

$\Rightarrow a=\frac{-14}{65}$

$\Rightarrow a=-0.215$

Hence, the equation of the parabola is:

$y=-0.215x^2+35$

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2 years ago

Which of the following numbers is least, or furthest to the left on the number line? {48, 95, 21, 64, 53} A. 95 B. 53 C. 48 D. 2

kiruha [24]

Answer:

21 is your answer

Step-by-step explanation:

To solve, reorder the numbers from least to greatest

[48, 95, 21, 64, 53] = [21, 48, 53, 64, 95]

21 is your answer

~<em>Senpai</em>

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3 years ago

Find all solutions by factoring.<br> c? + 13c + 40 = 0

Karolina [17]

Answer: c = -5, -8

Step-by-step explanation:

c^2 +13c+40=0

(c+5)(c+8)=40

c = -5, -8

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3 years ago

The librarian needs to return 24 books to the shelf. In one hour she finished 3/4 of the job. How many books has she

Rudiy27

Answer:

18 books done and 6 books left

Step-by-step explanation:

24 *3/4 = 18

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2 years ago

Read 2 more answers