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3 years ago

9

Ryan shaded 70 squares on his hundredths grid. Sarah shaded 80 squares on her hundredths grid .Which decimals show how much of t

he grid Ryan shaded?

1 answer:

Novay_Z [31]3 years ago

7 0

Answer:

0.7

Step-by-step explanation:

70 shaded squares out of 100

= 70/100

=0.7

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Find the perimeter and area of the figure pictured below.

Stella [2.4K]

Perimeter of the figure = 26.5 m

Area of the figure = 59.68 m².

<h3>What is the Perimeter of a Figure?</h3>

Perimeter of a figure is the length around the borders of the figure.

Find the Perimeter of the Figure:

Perimeter = 3.9 + 7.4 + 10.6 + 4.6 = 26.5 m

Area of the Figure:

Decompose the figure into two rectangles, rectangle 1 and rectangle 2.

Area of rectangle 1 = length × width = 10.6 × 4.6 = 48.76 m².

Area of rectangle 2 = length × width = 3.9 × (7.4 - 4.6) = 10.92 m².

Area of the figure = 48.76 + 10.92 = 59.68 m².

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2 years ago

Write a real life scenario that can be represented by the integer –55.

Lynna [10]

Comparing the temperature of a coolant before and after use in a machining process.

Step-by-step explanation:

The temperature of a coolant in the polar region was found to be modeled by the equation t=(8x-55)° where t is the final fluid temperature after being used for cooling ,x is the time the fluid is applied on the cutting edge and -55 is the normal temperature of the fluids used for cooling processes in a machine garage.

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3 years ago

What are the solutions for the equation 3(5x-1)^2=27

amm1812

See, pls, the suggested explanation:
3(5x-1)²=27 ⇔ 75x²-30x-24=0 ⇔ 25x²-10x-8=0 ⇒
$\left[\begin{array}{ccc}x= \frac{5-15}{25} \\x= \frac{5+15}{25} \end{array}\right \ =\ \textgreater \ \ \left[\begin{array}{ccc}x=- \frac{2}{5} \\\ x= \frac{4}{5} \end{array}\right$

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3 years ago

Malory got a 75% on her math test. to earn that score, she got 27 questions correct. he many questions were on the test?

aivan3 [116]

100-75=25
27 divided by 0.25 is108
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4 years ago

The surveyor sets up the instrument to determine the height at the highest point on the hill. She determines that she is standin

Ne4ueva [31]

Answer:

$(a)\ h = d * \tan(\theta)$

$(b)\ h = 30.57m$

Step-by-step explanation:

Given

$\theta = 17^o$

$d =100m$

$h = ??$

See attachment for illustration

Solving (a): Trigonometry ratio to calculate h.

From the attachment, we have:

$\tan(\theta) = \frac{h}{d}$

Multiply both sides by d

$d * \tan(\theta) = \frac{h}{d} * d$

$d * \tan(\theta) = h$

Rewrite as:

$h = d * \tan(\theta)$

Solving (b): The value of h

We have:

$\theta = 17^o$

$d =100m$

So:

$h = 100m * \tan(17^o)$

$h = 100m * 0.3057$

$h = 30.57m$

8 0

3 years ago