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3 years ago

What is the total of 4/7 +3/7

Mathematics

1 answer:

lilavasa [31]3 years ago

6 0

Answer:

7/7 also known as a whole (1)

Step-by-step explanation:

All you have to do is add 4 and 3 then keep the denominator the same (7)

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A test is made of H subscript 0 colon space mu space equals space 43 space space v e r s u s space space H subscript 1 colon spa

sweet [91]

Answer:

The calculated value Z = 1.39 <1.96 at 0.05 level of significance

The null hypothesis is accepted

Step-by-step explanation:

Step(i):-

Given that the mean of the Population = 43

Given that the mean of the sample = 47

Given that the standard deviation of the Population = 25

Given that the sample size 'n' = 76

Step(ii):-

Null hypothesis:H₀: μ = 43

Alternative Hypothesis: H₁: μ ≠ 43

Test statistic

$Z = \frac{x^{-}-mean }{\frac{S.D}{\sqrt{n} } }$

$Z = \frac{47-43 }{\frac{25}{\sqrt{76} } }$

Z = 1.39

Level of significance = 0.05

The critical value = 1.96

Final answer:-

The calculated value Z = 1.39 <1.96 at 0.05 level of significance

The null hypothesis is accepted

4 0

2 years ago

Pls help me solve this

Elodia [21]

Volume = Area of triangle x length

Area of triangle = 1/2 x base x height

Area of triangle = 1/2 x 5 x 4

Area of triangle = 10

Volume = area of triangle x length

Volume = 10 x 12

Volume = 120 cm^3

8 0

2 years ago

Please help ASAP-Nov 19 I need it for a test

lozanna [386]

First to Answer:

The slope is 0.1998. The number of calories is increased by 0.1998 for each 1 milligram increase in sodium.

I remember taking this test and getting this answer! Let me know if help with any of the other questions!

8 0

3 years ago

1 4/8 in a improper fraction?

stiv31 [10]

<h2>Answer: $\frac{3}{2}$ </h2>

Step-by-step explanation:

Step 1: Multiply the whole number part (1) by the denominator (8).

1 × 8 = 8

Step 2: Add the product from Step 1 (8) to the numerator (4).

8 + 4 = 12

Step 3: Write that result (12) above the denominator. So,

$\frac4{8}{1}$

Step 4: The fraction $\frac{12}{8}$

Can be reduced by dividing both numerator and denominator by the GCD(12,8) = 4. Thus,

$\frac1{4}{8} =\frac{3}{2}$

8 0

2 years ago

PLEASE HELP!! Due at 11:15

Strike441 [17]

Answer:

The angles are complementary angles because they are 90

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers