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2 years ago

Jeremy has 3 pounds of ground beef to make hamburgers. How many 1/3-pound hamburgers can he make?

Mathematics

2 answers:

never [62]2 years ago

8 0

Answer:

the answer is 9

Step-by-step explanation:

3x1/3 you don't do nothing with the 1 so don't multply it then what you do is 3x3=9

Tpy6a [65]2 years ago

7 0

Answer:

He can make 9 hamburgers

Step-by-step explanation:

if he makes hamburgers that are 1/3 of a pound then when he makes 3 he uses a whole pound so when he makes 9 he uses all 3 pounds.

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Which polygons are congruent?

bonufazy [111]

Two polygons are congruent if they are the same size and shape - that is, if their corresponding angles and sides are equal. Move your mouse cursor over the parts of each figure on the left to see the corresponding parts of the congruent figure on the right.

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3 years ago

Find the measure of x

Andru [333]

Answer:

180

Step-by-step explanation:

the missing angle is 90 because anges in tri add to 180

xo that means that x=90(2)=180

5 0

2 years ago

It is suspected that calcium in blood platelets may be related to blood pressure. As part of a study of this relationship, resea

mr Goodwill [35]

Answer:

Step-by-step explanation:

The null and the alternative hypothesis are:

$\mathbf{ H_o: \rho = 0} \\ \\ \mathbf{H_1: \rho \ne 0}$

The test statistics is as follows:

$t = \dfrac{r\sqrt{n-2} }{\sqrt{1-r^2}}$

$t = \dfrac{0.4 \sqrt{30-2} }{\sqrt{1-0.4^2}}$

$t = \dfrac{0.4 \sqrt{28} }{\sqrt{0.84}}$

t = 2.3094

The critical value

$t_{\alpha/df} = t_\ \{0.05/2 \ , \ 30-2 \} } \\ \\ = t_{0.025,28} = \pm 2.048 ( from \ the \ t-tables)$

Decision rule:

To reject $H_o$ if t > $t_{\alpha/df}$ .

So since t > $t_{\alpha/df}$ . we reject $H_o$ at ∝ = 0.05

Conclusion: There is sufficient evidence to conclude that blood pressure and patient calcium are linearly related.

3 0

2 years ago

PLEASE HELP THIS IS ALL DUE TOMMOROW 6-Find the lateral surface area. 12 cm 30 cm 9 cm

erica [24]

Answer:

1476 cm²

Step-by-step explanation:

I like to use the formula ...

SA = 2(LW +H(L +W))

= 2((12 cm)(9 cm) + (30 cm)(12 cm +9 cm))

= 2(108 cm² +(30 cm)(21 cm))

= 2(108 cm² +630 cm²) = 2(738 cm²)

total surface area = 1476 cm²

_____

"Lateral surface area" usually refers to the area that is not part of the base(s). For a rectangular prism, it would be the product of the height and the perimeter of the base. You have not designated a base, so we cannot tell if you really want just the lateral surface area or the whole surface area. The above computation figures the whole surface area.

3 0

2 years ago

What is the volume of the cube

Paul [167]

Answer:

373248cm³

Step-by-step explanation:

first we need to find the value of the side length by plugging in the value of y and x

side length = 8x²y + y³

x = 1/2 and y = 4 ( plug in these values )

side length = 8(1/2)²4 + (4)³

we can evaluate using pemdas

p - parenthesis

e - exponents

md - multiplication and division ( left to right )

as - addition and subtraction ( left to right )

first we evaluate anything in the parenthesis if needed. its not needed though because there is no operations in the parenthesis

Then we evaluate exponents

side length = 8(1/2)²4 + (4)³

there are 2 so we evaluate them

(1/2)² = 1/4 and 4³ = 64

side length = 8(1/4)4 + 64

next we do the multiplication and division going left to right

8 * 1/4 = 2

(2)(4) + 64

2 * 4 = 8

side length = 8 + 64

finally the addition

side length = 72

No we want to find the volume of the cube

We can find the volume of a cube by simply cubing the side length

The cube has a side length of 72cm

so the volume is equal to 72³ = 373248cm³

5 0

1 year ago