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4 years ago

Which operation should you perform first when simplify you 75-(8+45/3) *7?

1 answer:

3 0

According to PEMDAS, you should do the parenthesis first, then the multiplication, then the subtraction. Let's do it:
75-(8+45/3)*7
= 75-(8+15)*7
= 75- 23*7
= 75- 161
= -86.

Hope this helps~

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Sara has 2 apples. If her brother eat 2 of it, How many apple does Sara has?

krok68 [10]

Answer:

2-2 = 0

Step-by-step explanation:

she has no apples left.

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4 years ago

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A watermelon is launched from a 25-foot tall platform at a carnival. The watermelon's height h (in feet) at time t seconds can b

Nataly [62]

Answer:

The maximum height of the watermelon is 74 feet.

Step-by-step explanation:

The watermelon reaches its maximum height when its velocity is zero. Mathematically speaking, velocity is the first derivative of the function height, that is:

$v(t) = \frac{d}{dt} h(t)$ (1)

Where $v(t)$ is the velocity, in feet per second.

If we know that $h(t) = -16\cdot t^{2}+56\cdot t +25$ and $v(t) = 0\,\frac{ft}{s}$ , then the time associated with maximum height is:

$v(t) = -32\cdot t +56$ (2)

$-32\cdot t + 56 = 0$

$t = 1.75\,s$

Now we evaluate the function height at time found in the previous step: ( $t = 1.75\,s$ )

$h(t) = -16\cdot t^{2}+56\cdot t +25$

$h(1.75) = 74\,ft$

The maximum height of the watermelon is 74 feet.

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3 years ago

I need to know what is the percent increase

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4 years ago

What is decimal expansion of <img src="https://tex.z-dn.net/?f=%5Cfrac%7B284%7D%7B3%7D" id="TexFormula1" title="\frac{284}{3}" a

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3 years ago

Copy the problems onto your paper, mark the given and prove the statements asked. Prove, triangle CAV is congruent to triangle C

lys-0071 [83]

Quadrilateral is a family of plane shapes that have four straight sides. Thus the sum of their internal angles is $360^{o}$ . Examples include rectangle, square, rhombus, trapezium, and kite.

A kite is a plane shape that has its adjacent sides to have equal measures.

The given diagram in the question is a kite that has its specific properties compared to other quadrilaterals.

Thus, the required proof is stated below:

Given: ΔCAV and ΔCEV

Prove that: ΔCAV ≅ ΔCEV

Then,

CE ≅ CA (length of side property of a kite)

EV ≅ AV (length of side property of a kite)

<ACV ≅ <ECV (bisected property of a given angle)

<AVC ≅ <EVC (bisected property of a given angle)

CV is a common side to ΔCAV and ΔCEV

Therefore it can be deduced that;

ΔCAV ≅ ΔCEV (Angle-Angle-Side congruent theorem)

For more clarifications on the properties of a kite, visit: brainly.com/question/2918354

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