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Dominik [7]
3 years ago
11

A cylindrical water tank is being filled with a hose. The depth of the water increases by 1 1/4 ft per hour.

Mathematics
1 answer:
Ray Of Light [21]3 years ago
6 0
2 4/5 is the correct answer
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I need some help????
ki77a [65]
This will come out to 35.1

Hope this helps ya!

7 0
3 years ago
Question attached plz answer
Bezzdna [24]

Answer:

x = - 2.5

Step-by-step explanation:

Given that the sketch represents

y = x² + bx + c

The graph crosses the y- axis at (0 , - 14), thus c = - 14

y = x² + bx - 14

Given the graph crosses the x- axis at (2, 0), then

0 = 2² + 2b - 14

0 = 4 + 2b - 14 = 2b - 10 ( add 10 to both sides )

10 = 2b ( divide both sides by 2 )

b = 5

y = x² + 5x - 14 ← represents the graph

let y = 0 , then

x² + 5x - 14 = 0 ← in standard form

(x + 7)(x - 2) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 7 = 0 ⇒ x = - 7

x - 2 = 0 ⇒ x = 2

The x- intercepts are x = - 7 and x = 2

The vertex lies on the axis of symmetry which is midway between the x- intercepts, thus

the x- coordinate of the turning point is \frac{-7+2}{2} = \frac{-5}{2} = - 2.5

8 0
3 years ago
HELP PLEASE ILL GIVE BRAINLIST 8th grade ALGEBRA I INSERTED A PHOTO
Alex73 [517]

Answer:

No

Step-by-step explanation:

Solve it yourself, or ask your mom. They might help. So yeah um bye

6 0
2 years ago
A pie is made using 2 cups of sugar for every 3 cups of flour. Max knows he needs 15 cups of flour to make enough pies. How many
PolarNik [594]

Answer: 10 cups of sugar

Step-by-step explanation:

Cups of sugar : Cups of flour

                    2 : 3

                    ? : 15

Cross multiply

3? = 15 × 2

3? = 30

Divide both sides by 3

? = 10

He needs 10 cups of sugar.

8 0
3 years ago
A recent poll of 700 people who work indoors found that 278 smoke. if the researchers want to be 98% confident of their results
Mice21 [21]

Answer:

We are given:

\hat{p}=\frac{278}{700}=0.397

z_{\frac{0.02}{2}}=2.33 is the critical value at 0.02 significance level

E=0.035 is the margin of error

Therefore, the required sample size is:

n=\hat{p}(1-\hat{p}) \left(\frac{z_{\frac{0.02}{2}} }{E} \right )^{2}

      =0.397(1-0.397) \left( \frac{2.33}{0.035} \right)^2

      =0.239391 \times 4431.755102

      =1060.922286 \approx 1061

Therefore, the required sample size n = 1061


5 0
3 years ago
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