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Natali [406]
3 years ago
9

WILL MARK AS BRAINLIEST I NEED HELP ASAPPP

Mathematics
1 answer:
sattari [20]3 years ago
7 0

Answer:

8.9 in.

Step-by-step explanation:

Area of triangle = (1/2) b. h

40 = (1/2) x*x

80 = x^2

square root (80) = x

x=> 8.944.... inch

Rounding off you get 8.9 in.

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What are the common factors of 50 30 100
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5 0
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The Blue Diamond Company advertises that their nut mix contains (by weight) 40% cashews, 15% Brazil nuts, 20% almonds and only 2
jek_recluse [69]

Answer:

At the 0.05 level of significance,  the claim made by Blue Diamond is true

Step-by-step explanation:

Given that the Blue Diamond Company advertises that their nut mix contains (by weight) 40% cashews, 15% Brazil nuts, 20% almonds and only 25% peanuts.

H_0: The mix are as per percents given\\H_a:Atleast two differ from the above percent.

(Two tailed chi square test at 5% significance level)

Chi square is calculated as (Obs_exp)^2/Expected

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Observed 5 6 6 3 20

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Expected  8 3 4 5 20

     

Chi square 1.125 3 1 0.8 5.925

df = 3

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Since p value >0.0 we accept null hypothesis.

4 0
3 years ago
Joshua gave away 1/3 of his marbles to Kale.If Kale got 25 marbles,how many marbles did Joshua have at first?​
OLEGan [10]

Answer:

75

Step-by-step explanation:

joshua - x

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6 0
2 years ago
What are the solutions of the equation x^4 + 6x^2 + 5 = 0? Use u substitution to solve.
Radda [10]

Answer:

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Given

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Equate each factor to zero and solve for u

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u + 5 = 0 ⇒ u = - 5

Change u back into terms of x, that is

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Solutions are x = ± i and x = ± i\sqrt{5}

3 0
3 years ago
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