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3 years ago

Find the difference. 6rs – (-2rs)

1 answer:

8 0

There is no difference, 6rs-(-2rs) if you get rid of the parenthesis you are left with 6rs- -2rs and two negatives make a positive therefore the answer will become 8rs... I hope this helps :)

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Estimate the percent of each number. 47% of 77

Anettt [7]

ANSWER

36 .19

EXPLANATION

We want to estimate

$47\% \: of \: 77$

This is the same as

$\frac{47}{100} \times 77$

$\frac{47}{100} \times \frac{77}{1}$

We multiply the numerators to get,

$\frac{3619}{100}$

We convert to decimals to get

$36.19$

5 0

3 years ago

4. A plane at an altitude of 10,000 feet is approaching an island. At a given moment, the angle of depression to the near side o

Sonja [21]

Answer:

The angle of depression calculator. How to find the angle of depression?

Since we now know what the angle of depression is, let's learn how to find it! We can determine the angle of depression using surveying equipment like an engineer's transit or a clinometer. These devices are optical instruments that have angle-measurement features and can instantly give us the angle that we need. However, we can also use mathematics to find the angle of depression. But first, we need to know two distances: the horizontal distance between the viewer and the object, and their vertical distance, as shown in the illustration below:

8 0

3 years ago

Lori had \$88$88dollar sign, 88. She earned \$29$29dollar sign, 29 walking dogs. After she spent money for concert tickets, Lori

Tasya [4]

Answer:

$43

Step-by-step explanation:

Given

$Savings = \$88$

$Earnings = \$29$

$Amount\ Left = \$74$

Required

Calculate the amount spent

First, we need to calculate the total amount she had.

$Total = Savings + Earnings$

$Total = \$88 + \$29$

$Total = \$117$

Represent amount spent with x.

The relationship between total amount, spending and amount left is:

$Total - x = Amount\ Left$

$\$117 - x = \$74$

Collect Like Terms

$x = \$117 - \$74$

$x = \$43$

5 0

3 years ago

Find the length of segment AC if AB = 7.8 cm and BC = 25 mm. How many solutions are there in each case? Point B lies on line AC

svp [43]

Answer:

103mm or 53mm

Step-by-step explanation:

--A------B------C--

AB=78mm BC=25mm AC=AB+BC=103mm

--A----C---B---

AB=78mm BC=25mm AC=AB-BC=53mm

-B---A---C-

is impossible because BA<BC but 78mm>25mm

3 0

2 years ago

Help<br>question on the image.

Simora [160]

Answer:

Step-by-step explanation:

We want to compare the pot holder hole dimension to the pot dimension. The hole diameter is the overall pot holder diameter less the wall thickness on either side:

hole diameter = (20 1/5) -2(1 2/7) = 20 -2(1) +1/5 -(2)(2/7)

= 18 +(1/5 -4/7) = 18 +(7 -20)/35 = 18 -13/35

= 17 22/35 . . . . cm

We want to compare this to 17 4/5. We can do that by using a common denominator for the fractions.

17 4/5 = 17 + (4/5)(7/7) = 17 28/35 . . . . cm

The pot has a diameter of 17 28/35 cm; the pot holder has a hole diameter of 17 22/35 cm, so <em>the hole is smaller than the pot</em>.

The pot will not fit into the plant pot holder.

_____

You can use your calculator to find the free space around the pot by computing ...

20 1/5 -2(1 2/7) -17 4/5 = free space = -6/35 . . . . cm

Negative space means the pot is larger than the hole.

8 0

2 years ago