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Alex73 [517]
3 years ago
7

Help me with questions #1,3,4, & 5

Mathematics
1 answer:
Klio2033 [76]3 years ago
7 0
Q:3
Ans: 10.12 x 10 power -5
Q:4
Ans: 5/8
Q:5
Ans: - x cube and + x square  
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7.7.4 Practice: Modeling: Similarity Theorems will give brainliest
Nimfa-mama [501]

Similar triangles may or may not be congruent

  • The height of the peak is 72 feet
  • The triangles are similar by AA similarity postulate

<h3>How to determine the similarity statement</h3>

First, we determine the height of the peak using the following equivalent ratios

P B :  B M = T F : F M

So, we have:

PB : 20ft= 6ft : 1ft\ 8in

Express the units in inches

PB : 240in= 72in: 20in

Express as fractions

\frac{PB}{240} = \frac{72}{20}

Multiply both sides by 240

PB = \frac{72 * 240}{20}

PB = 864

Express as feet

PB = 72 feet

So, the height of the peak is 72 feet

The ratio also means that the triangles are similar by AA similarity postulate

Read more about similar triangles at:

brainly.com/question/14285697

5 0
1 year ago
Help my grade depends on it
Veseljchak [2.6K]
Lily made $75.36 more than Layla did.  If Layla raised her price to $1.00, she would still not make more money than Lily.

Use a proportion to find the number of cupcakes Lily makes in 8 hours.  She bakes 7 cupcakes in 10 minutes; we want to know how many she makes in 8(60)=480 (since there are 8 hours and each hour is 60 minutes):

7/10 = x/480

Cross multiply:
7*480 = 10*x
3360 = 10x

Divide both sides by 10:
3360/10 = 10x/10
336 = x

Lily bakes 336 cupcakes.

She sells 2/3 of these; 2/3(336) = 2/3(336/1) = 672/3 = 224 cupcakes sold.

Each cupcake is sold for $1.29; 224(1.29) = 288.96

To find the number of cupcakes Layla makes in 8 hours, we set up a different proportion.  We know she bakes 8 cupcakes in 12 minutes; we want to know how many she bakes in 8(60) = 480 minutes:

8/12 = x/480
8*480 = 12*x
3840 = 12x

Divide both sides by 12:
3840/12 = 12x/12
320 = x

She bakes 320 cupcakes.  She sells 75% of those; 75% = 75/100 = 0.75:
0.75(320) = 240

Each of those 240 cupcakes sells for $0.89:
0.89(240) = 213.60

This means Lily makes 288.96-213.60 = 75.36 more than Layla.

If Layla raised her price to $1.00, she would make 1(240) = $240; this is still less than Lily.
6 0
3 years ago
Rene has a coupon for $3.25off a package of name-brand cookies that normally cost $7.89. The store-brand cookies cost $5.58. How
jeka94
$10.22 this is the answer for you..............
5 0
2 years ago
The point (-7,4) is reflected across the y-axis then across the x-axis. What are the coordinates of the reflected point?
barxatty [35]
The reflected coordinates are (7,4) You can find this out by imagining a point on the left upper  side in quadrant 2. Then, when you flip it to quadrant 1, both coordinates are positive!

Hope this helps! Pick me as Brainliest! PLEASE, PLEASE, PLEASE, PLEASE, PICK ME AS BRAINLIEST!!!!!!!
3 0
2 years ago
Read 2 more answers
Michael has $96,962 in a savings account that earns 15% annually. The interest is not compounded. How much interest will he earn
klasskru [66]

Answer:

$58177.2

Step-by-step explanation:

15 percent of 96962 is 14,544.3 and times that by 4 is  58177.2

4 0
3 years ago
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