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tresset_1 [31]
3 years ago
8

7. A chemist weighed three separate test samples at 0.17 gram, 0.204 gram, and 2.3 grams. What is the total weight of the three

samples?
Mathematics
1 answer:
ale4655 [162]3 years ago
6 0
2.674 with all of them added together. If you include sig figs it would be 2.7
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Your are designing a rectangular birthday card for a friend. You want the card's length to be 1 inch more than twice the card's
klemol [59]

The width of the card to the nearest tenth of an inch is 6.15 inches

<h3>Area of rectangle</h3>

  • Width = x
  • Length = 2x + 1
  • Area = 88 square inches

Area of a rectangle = Length × Width

88 = (2x + 2) × x

88 = 2x² + 2x

2x² + 2x - 88 = 0

x = -b ± √b² - 4ac / 2a

= -2 ± √2² - 4(2)(-88) / 2(2)

= -2 ± √4 - (-704) / 4

= -2 ± √708 / 4

= -1/2 ± √177/2

x = 6.15 or -7.15 inches

The width of the rectangle can not be negative, so, 6.15 inches is the width.

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5 0
2 years ago
What is the ratio of 5<br> footballs to 9 Baseballs
Vesna [10]

Answer:

5:9 If that's what you meant

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
in a study evaluating the relationship between stress and muscle cramps, half the subjects are randomly assigned to be exposed t
stiks02 [169]

The study creates stress in a(0ne) way that might affect muscle cramps.

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The study creates stress in a(0ne) way that might affect muscle cramps. If an elevator falls, fleetly and stops suddenly, that could affect muscle cramps more because of the physical action than by the stress it convinced. I don’t suppose this trial would help answer whether there's a unproductive relationship between increases stress and muscle cramps.

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7 0
1 year ago
Paul, who is 1.5 yards tall, was standing on the pier at the
Alexus [3.1K]
5+1.5=6.5 yards
90-28=62 degrees

Imagine a right triangle where the
a=6.5
B=?
C=?
We use SOH-CAH-TOA
Tan(62degrees)=(x/6.5)
=12.2 yards
5 0
2 years ago
What shape is both a rhombus and rectangle?
fenix001 [56]

Answer:

A square

Step-by-step explanation:

Definition of a rhoumbus: Shape that 4 sides that are all equal

Definition of a rectangle: 4 Right Angles

Definition of a square: All sides and angles are equal.

So, the square has 4 right angles, and has 4 equal sides

8 0
3 years ago
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