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3 years ago

11

Danielle has her finals coming up and she's worried she'll fail her class. Her past 3 test grades were a 72. an 85, and a 68. Sh

e needs a 70 to pass the class. What grade does she need to make on the final to get a 70?

1 answer:

natka813 [3]3 years ago

7 0

Answer:

55

Step-by-step explanation:

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Dr. Hudson has a clock decorating business. On her signature circular clock, she puts glitter tape around the outer trim. About

Monica [59]

Answer:

She will need to use 377 inches of glitter tape.

Step-by-step explanation:

Find the circumference of the circle by using the radius. The circumference of each clock is 37.7 inches. Multiply that by 10, because there are 10 clocks. That will give you your answer is 377 inches!

6 0

3 years ago

HELP! The Last option is none of the above

IgorC [24]

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<em>both</em><em> </em><em><</em><em>a</em><em> </em><em>and</em><em> </em><em><</em><em>B </em><em>are</em><em> </em><em>in</em><em> </em><em>a</em><em> </em><em>straight</em><em> </em><em>line</em><em>.</em><em>.</em><em>so</em><em> </em><em>they</em><em> </em><em>are</em><em> </em><em>supplementary</em><em> </em><em>angles</em><em> </em>

<em>Supplementary</em><em> </em><em>angles</em><em> </em><em>are</em><em> </em><em>equal</em><em> </em><em>to</em><em> </em><em>1</em><em>8</em><em>0</em><em> </em><em> </em><em>degree</em><em>.</em>

<em>Hope</em><em> </em><em>it</em><em> </em><em>will</em><em> </em><em>be</em><em> </em><em>helpful</em><em> </em><em>to</em><em> </em><em>you</em>

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6 0

3 years ago

Find all values of c such that 3^2c+1=28*3^c-9. If you find more than one value of c, then list your values in increasing order

avanturin [10]

$3^{2c} + 1 = 28\times3^c - 9 \implies 3^{2c} - 28\times3^c = -10$

Complete the square on the left side:

$3^{2c} - 28\times3^c = \left(3^{2c}-28\times3^c+14^2\right)-14^2 = \left(3^c-14\right)^2 - 196$

Then the equation becomes

$\left(3^c-14\right)^2 - 196 = -10 \\\\ \left(3^c-14\right)^2 = 186 \\\\ 3^c - 14 = \pm\sqrt{186} \\\\ 3^c = 14\pm\sqrt{186}$

Both 14 + √186 and 14 - √186 are positive numbers, so we can take the logarithm (base 3) of both sides without issue:

$\log_3\left(3^c) = c = \log_3\left(14\pm\sqrt{186}\right)$

Then in increasing order, the solutions are

<em>c</em> = log₃(14 - √186), <em>c</em> = log₃(14 + √186)

3 0

3 years ago

Gi sells televisions he earns a fixed amount for each television and an additional $20 if the buyer gets an extended warranty if

Ulleksa [173]

Multiply tvs sold by cost of the warranty:

17 x 20 = $340

Subtract the total warranty from total made and divide by number of TVs.

1360 - 340 = 1020

1020/17 = 60

He earns $60 per tv

7 0

3 years ago

Sheila had 8 yards of fabric.she used 2/3 of the fabric on a project. How many yards does she have left?

Inessa [10]

Answer:

As a decimal it can be written as 7.3 repeated

5 0

4 years ago