3 years ago

Help please . Lost .

1 answer:

8 0

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gogolik [260]

I think it's B. 168 units
Because I multiplied them all together and halved the answer

8 0

3 years ago

Read 2 more answers

Write the standard form of the equation of the circle with radius 7 and center (5,−7).

olya-2409 [2.1K]

Answer:

$(x-5)^2+(y+7)^2=49$

Step-by-step explanation:

Use $(x-h)^2+(y-k)^2=r^2$ for the equation of a circle in standard form with radius $r$ and center $(h,k)$ . Therefore, the equation of the circle in standard form is $(x-5)^2+(y+7)^2=49$

4 0

2 years ago

The inside diameter of a randomly selected piston ring is a normally distributed random variable with mean 12 cm and standard de

victus00 [196]

Answer:

$x=12.07$

Step-by-step explanation:

From the question we are told that:

Mean $\=x =12cm$

Standard deviation $\sigma=0.04$

Significance level $\alpha=5\%=0.05$

Therefore

Confidence level $95\%=0.95$

From table $P(z$

Generally the equation for Z-score is mathematically given by

$z=\frac{x-\mu}{\sigma}$

$x=z\sigma+\mu$

$x=1.645*0.04+12$

$x=12.07$

3 0

2 years ago

a student took a test that had 60 questions.if he got 45 right,what percentage of the question did he get right?

Sergeeva-Olga [200]

Answer:

25 %

is your answer

follow me plzzz

5 0

2 years ago

Diego’s family car holds 14 gallons of fuel. Each day the car uses 0.5 gallons of fuel. A warning light comes on when the remain

snow_lady [41]

Answer:

Step-by-step explanation:

7 0

2 years ago