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3 years ago

30 POINTS!! HELP!!! WILLBEMARKEDBRAINLIEST!!

Mathematics

2 answers:

Verizon [17]3 years ago

8 0

Answer:

sophie used the wrong height for the pyramid

Step-by-step explanation:

aleksley [76]3 years ago

8 0

Answer:

C. *Sophie used the wrong height for the pyramid.

Step-by-step explanation:

The height of the pyramid should be:

30 - 4 = 26 mm

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Lisa walked 48 blocks in 3 hours how much blocks per hours

FrozenT [24]

You just have to divide the number of blocks walked by the number of hours

48 / 3 = 16 blocks per hour

3 0

3 years ago

can someone help me find the slope . and tell me how you got the steps and answer. question-What is the slope of the line that p

densk [106]

Answer:

m = -8/3

Step-by-step explanation:

Keep in mind that slope is defined as m = rise / run, or, alternatively,

m = (change in y ) / (change in x).

If we start at (-10, 8) and move to (-4, -8),

the x coordinate is seen to increase by 6 from -10 to -4, and

the y coordinate decrease by 16 from 8 to -8.

Thus, the slope of the line segment connecting these two points is

m = -16 / 6, or m = - 8/3

4 0

3 years ago

Please explain steps

vovikov84 [41]

Answer:

Step-by-step explanation:

you keep the hole number. times the exponent 's. since one of them are negative it will be a fraction.

7 0

3 years ago

Read 2 more answers

20 points! I would really like some help! :) (Question attached below)

snow_lady [41]

Answer:

See below.

Step-by-step explanation:

(a)

To multiply two polynomials, multiply every term of the first polynomial by every term of the second polynomial. Then combine like terms.

$(\dfrac{1}{2}x - \dfrac{1}{4})(5x^2 - 2x + 6) =$

$= \dfrac{1}{2}x \times 5x^2 - \dfrac{1}{2}x \times 2x + \dfrac{1}{2}x \times 6 - \dfrac{1}{4} \times 5x^2 + \dfrac{1}{4} \times 2x - \dfrac{1}{4} \times 6$

$= \dfrac{5}{2}x^3 - x^2 + 3x - \dfrac{5}{4}x^2 + \dfrac{1}{2}x - \dfrac{3}{2}$

$= \dfrac{5}{2}x^3 - \dfrac{9}{4}x^2 + \dfrac{7}{2}x - \dfrac{3}{2}$

(b)

No. Since the binomials are different, the product of two different binomials and the same trinomial will give different results.

4 0

3 years ago

Lovell decorates reclaimed shorts and sells them. She pays $420 per month in rent and $21 in expenses for each pair of shorts. S

kirill [66]

Answer: 30 pairs of shorts

21x+420=35x
subtract 21x from both sides of the equation.
420=14x
get rid of the x by division
420/14
you get 30 =x

8 0

3 years ago