All categories

3 years ago

What is 4.12×23.4 plz help me

2 answers:

7 0

Just use a calculator round your answer so it'd be 96.4 because you're round to the nearest 10th and the full answer is 96.408

jonny [76]3 years ago

3 0

96.408 I used a calculator

You might be interested in

2. What is an equation of the line that has slope -4 and passes through the point (-2,-5)?

nordsb [41]

Slope = m
y-5 = m(x+2)

8 0

3 years ago

Read 2 more answers

Which value is equivalent to [(7x3x2)/(7x5)]^2 x [(7^0)x(5^-3)]^3 x 5^-9?

kaheart [24]

Answer: 36/25

Step-by-step explanation:

[(7x3x2)/(7x5)]^2 x [(7^0)x(5^-3)]^3 x 5^-9

= [(7x3x2)/(7x5)]^2 x [(7^0)x(5^3)]^3 x 5^-9

= [(7x3x2)/(7x5)]^2 x [1 x(5^3)]^3 x 5^-9

= [(7x3x2)/(7x5)]^2 x 5^9 x 5^-9

= [(7x3x2)/(7x5)]^2 x 5^0

= [(7x3x2)/(7x5)]^2 x 1

= [(7x3x2)/(7x5)]^2

= [(3x2)/(5)]^2

= [(6)/(5)]^2

= 36/25

Hope it helps.

Thank you !!

7 0

3 years ago

Exercise 6.22 provides data on sleep deprivation rates of Californians and Oregonians. The proportion of California residents wh

kherson [118]

Answer:

a. The alternative hypothesis H₀: p'₁ ≠ p'₂ is accepted

b. Type I error

Step-by-step explanation:

Proportion of California residents who reported insufficient rest = 8.0%

Proportion of Oregon residents who reported insufficient rest = 8.8%

p'₁ = 0.08 * 11545 =923.6

p'₂ = 0.088 * 4691=412.81

σ₁ = $\sqrt{n*p_1*q_1} = \sqrt{n*p_1*(1-p_1)}$ = $\sqrt{11545*0.08*(1-0.08)}$ = 29.15

σ₂ = $\sqrt{n*p_2*q_2} = \sqrt{n*p_2*(1-p_2)}$ = $\sqrt{4691*0.088*(1-0.088)}$ = 19.40

Samples size of California residents n₁ = 11,545

Samples size of Oregon residents n₂ = 4,691

Hypothesis can be constructed thus

Let our null hypothesis be H ₀: p'₁ = p'₂

and alternative hypothesis H ₐ: p'₁ ≠ p'₂

Then we have

$z =\frac{(p'_1 -p'_2)-(\mu_1-\mu_2)}{\sqrt{\frac{\sigma^2_1}{n_1}+\frac{\sigma^2_2}{n_2} } }$

The test statistics can be computed by

t₀ = $\sqrt{\frac{n_1n_2(n_1+n_2-2)}{n_1+n_2} } *\frac{p_1'-p_2'}{\sqrt{(n_1-1)\sigma_1^2+(n_2-1)\sigma_2^2} }$ = 1104.83

c from tables is P(T ≤ c) = 1 - α where α = 5% and c = 1.65

since t₀ ≥ c then then the hypothesis is rejected which means the alternative hypothesis is rejected

b. Type I error, rejecting a true hypothesis

5 0

3 years ago

Can 12m, 35m and 37m make a right triangle

antoniya [11.8K]

Answer:

YES

Step-by-step explanation:

Explanation:

If this is a right triangle we can then substitute the sides of the triangle (12 and 35) and the hypotenuse (37) into the Pythagoras Theorem and the two sides of the equation will be equal. If this is not a right triangle the two sides of the equation will not be equal.

The Pythagoras Theorem is

Substituting we get:

⋅

144

1225

1369

Because these are equal this is a right triangle.

3 0

3 years ago

Read 2 more answers

Is the equation y=4x+1 proportional? *<br> Yes<br> No

Mumz [18]

Answer:

Step-by-step explanation:

y = 4x + 1 is not a direct variation. Direct variations have the form y = kx. So y = 4x would be a direct variation (k=4), but not y = 4x+1

7 0

3 years ago