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3 years ago

A bag contains

1 answer:

Natasha2012 [34]3 years ago

8 0

1/15 because you add all the blocks together and it gives you 15 and there is only 1 blue block so it will be a 1/15 chance of getting it

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Jacob is making a stew. The stew calls for 3/8 cup of rice. If he triples the recipe, how much rice will he need?

Paladinen [302]

Multiply by 3 so 3/8×3/1=9/8 / 1 1/8 cup of rice

6 0

4 years ago

Pls help me out with this question

Nezavi [6.7K]

Answer:

83 m (nearest metre)

Step-by-step explanation:

This can be modeled as a right triangle, where the base is 60 m and the height is the height of the building.

Alternate Interior Angles Theorem (Z-angles)

If a line intersects a set of parallel lines in the same plane at two distinct points, the alternate interior angles that are formed are congruent.

Using the Alternate Interior Angles theorem, the angle between the ground and the dashed line (angle of elevation) is 54°.

Tan trigonometric ratio

$\sf \tan(\theta)=\dfrac{O}{A}$

where:

$\theta$ is the angle
O is the side opposite the angle
A is the side adjacent the angle

Given:

$\theta$ = 54°
O = height of building (h)
A = 60

Substituting the given values into the formula and solving for h:

$\implies \sf \tan(54^{\circ})=\dfrac{h}{60}$

$\implies \sf h=60 \tan(54^{\circ})$

$\implies \sf h=82.58291523...$

$\implies \sf h=83\:\:m\:(nearest\:metre)$

7 0

2 years ago

Read 2 more answers

A recent study focused on the amount of money single men and women save monthly. The information is summarized next. Assume that

IgorLugansk [536]

Answer:

Both means are apprxoimately equal at 1% level of significance.

Step-by-step explanation:

Given is the information summarised below

Group Men Women

Mean 23.00 28.00

SD 5.00 10.00

SEM 1.00 1.83

N 25 30

H0: Mean of mean = mean of women

Ha: means of men < mean of women

(Left tailed test)

Since population std deviation is known but sample sizes are small t test is used.

The mean of Men minus Women equals -5.00

standard error of difference = 2.201

t = 2.2721

df = 53

p value= 0.0136

since p >0.01 at 1% significance level we fail to reject H0.

Both means are apprxoimately equal at 1% level of significance.

7 0

4 years ago

What is the value of x? A. 20 B. 35 C. 60 D. 70

Svetlanka [38]

A. 20. plug 20 in to both equations and they will be equal to eachother

6 0

3 years ago

What is the exact area of a circular courtyard with a radius of 22 ft?

In-s [12.5K]

The answer is B 484pi ft squared

6 0

3 years ago

Read 2 more answers