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3 years ago

I need 1 and 2 please :)

Mathematics

1 answer:

Andru [333]3 years ago

7 0

Number 1 might be A and number 2 might be B. I'm not sure though.

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What is 60,000 + 3,000 + 20 + 9 in standard form

Zigmanuir [339]

60,000+3,000+20+9 in standard form is 6.3029 x 10^4.

Hope this helps you!
-Hamilton1757

8 0

3 years ago

Read 2 more answers

What is 4/5 divided by 2/12

Elena-2011 [213]

The answer would be 24/5, 4 4/5, or 4.8

7 0

2 years ago

Read 2 more answers

Based on all student records at Camford University, students spend an average of 5.30 hours per week playing organized sports. T

mina [271]

Answer:

The standard error of the sample mean is $\sigma_{\= x } = 0.40$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 5.30 \ hours$

The population standard deviation is $\sigma = 3.20 \ hours$

The sample size is $n = 64$

Generally the standard error of the sample mean is mathematically represented as

$\sigma_{\= x } = \frac{\sigma}{\sqrt{n} }$

substituting values

$\sigma_{\= x } = \frac{3.20}{\sqrt{64} }$

$\sigma_{\= x } = 0.40$

8 0

3 years ago

ACDE ~AHFG, solve for X.

Arisa [49]

Answer:

$3.07$

Step-by-step explanation:

$\frac{9x + 1}{21} = \frac{11x - 1}{24}$

$24(9x + 1) = 21(11x - 1)$

$216x + 24 = 231x - 21$

$24 + 21 = 231x - 216x$

$46 = 15x$

$x = 3.07$

6 0

2 years ago

At 7:00 a.m., the temperature was 8°C. What was the temperature at midnight if the temperature was 10° lower? Incorrect answer

astra-53 [7]

Answer:

b)−2° C

Step-by-step explanation:

hello! To solve this problem you should remember how are the operations with negative numbers, for this the only thing we must do is make a subtraction between the initial temperature (8° C) and the negative change of temperature (10° C)

Ti= initial temperature =8° C

ΔT= temperature change =10° C

new temperature=Ti-ΔT

new temperature=8° C-10° C=-2° C

in conclusion the answer is -2° C

6 0

3 years ago