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3 years ago

Estimate ∫20(4x2−2x)dx= using a left Reimann Summ and 4 equal subintervals.

Mathematics

1 answer:

dolphi86 [110]3 years ago

3 0

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Find the area of the triangle below.

iogann1982 [59]

Answer:

Step-by-step explanation:

8 0

3 years ago

PLEASE HELP been stuck all day

kupik [55]

Answer:

0.60, 2/3, 70%, 3/4, .85

Step-by-step explanation:

3 0

2 years ago

The estimated difference between two numbers is 60. Find two numbers that when rounded to the nearest ten, have a difference of

Verdich [7]

Answer:

128 and 74.

Step-by-step explanation:

128 rounded to the nearest ten is 130, and 74 rounded to the nearest ten is 70. 130-70=60

7 0

3 years ago

Area for a kite<br> I don’t know how to find the area pls help

dusya [7]

Answer:

63.966

Step-by-step explanation:

Area of a kite is

$\frac{pq}{2}$

where p and q are the diagonals.

The horinzontial diagonal is 8.

We need to find the vertical diagonal length.

The top triangle diagonal measure is

${4}^{2} + {x}^{2} = {7}^{2}$

$16 + {x}^{2} = 49$

${x}^{2} = 33$

$x = \sqrt{33}$

The bottom triangle diagonal measure is

${4}^{2} + {x}^{2} = {11}^{2}$

$1 6 + {x}^{2} = 121$

${x}^{2} = 105$

$x = \sqrt{105}$

Add the two diagonals.

$\sqrt{105} + \sqrt{33}$

Substitute this in for the formula

$\frac{8 \times ( \sqrt{105} + \sqrt{33} }{2}$

Which simplified gu

Ives us

$63.966$

Round if neededd.

7 0

3 years ago

Selma spent

Taya2010 [7]

Answer:

30%

Step-by-step explanation:

Selma spent 3/10 of her allowance on a new backpack.

Hence, the percent of her allowance that she spent is calculated as:

Fraction of allowance spent on Backpack × 100

= 3/10 × 100

= 0.3/1 × 100

= 30%

Therefore, Selma spent 30% of her allowance on a new backpack.

8 0

3 years ago