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3 years ago

8

Please help me please

1 answer:

balu736 [363]3 years ago

3 0

Answer:

Step-by-step explanation:

2n + 8.5 = 23

2n = 14.5

2n = 7.25 or 7 1/4 feet

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Helppp, ratios??? Lol I know looks easy but I can’t choose between the first and second answer

Sonbull [250]

The correct answer is 8/12

5 0

4 years ago

Read 2 more answers

Jasmyn uses 42% of a gift card to buy groceries if she spent $67.20 on groceries, how much was on the gift card to begin with

lapo4ka [179]

Answer:

The card was worth $160.

Step-by-step explanation:

It is given that:

Percent of gift card used = 42%

Cost of groceries = $67.20

Let,

x be the total amount on gift card.

42% of x = 67.20

$\frac{42}{100}x=67.20$

0.42x = 67.20

$\frac{0.42x}{0.42}=\frac{67.20}{0.42}\\x=160$

Therefore,

The card was worth $160.

4 0

3 years ago

1 .the base of a trapezoid are 11 meter and 14 meters.its height is 10 meters . what is the area of the trapezoid?

kvasek [131]

Question 1
Use the formula for the area of a trapezoid. a and b are the bases. h = height.

$A= \frac{a+b}{2}h=\frac{11+14}{2}*10 = \frac{25}{2}*10 = 12.5*10 = \boxed{125\ m^2}$

Question 2
Use the formula for the area of a rhombus. p and q are the diagonals.

$A = \frac{pq}{2} = \frac{21*32}{2} = \frac{672}{2} = \boxed{336\ m^2}$

Question 3
Use the formula for the area of a parallelogram. b is the base and h is the height.

$A = bh = 36*45 = \boxed{1620\ in^2}$

5 0

3 years ago

What’s the answer to this?

Hoochie [10]

Answer:

The missing term is:

$a_2=14$

Step-by-step explanation:

Considering the geometric sequence

$2,\:?,\:98,\:...$

Here,

$a_1=2$

$a_3=98$

$a_2=?$

The general term of a geometric sequence is given by the formula:

$a_n=a_1\cdot \:r^{n-1}$

where $a_1$ is the initial term and $r$ the common ratio.

as

$a_3=a_1\cdot \:r^{3-1}$

$98=2\cdot \:r^{3-1}$ ∵ $a_1=2$

$\mathrm{Switch\:sides}$

$2r^{3-1}=98$

$\mathrm{Divide\:both\:sides\:by\:}2$

$\frac{2r^{3-1}}{2}=\frac{98}{2}$

$r^{3-1}=49$

$r^2=49$

$\mathrm{For\:}x^2=f\left(a\right)\mathrm{\:the\:solutions\:are\:}x=\sqrt{f\left(a\right)},\:\:-\sqrt{f\left(a\right)}$

$r=\sqrt{49},\:r=-\sqrt{49}$

$r=7,\:r=-7$

Taking positive value of $r = 7$

$a_2=a_1\cdot \:r^{n-1}$

putting $r = 7$

$a_2=2\cdot \:7^{2-1}$

$a_2=2\cdot \:7$

$a_2=14$

So, the sequence becomes $2,\:14,\:98,\:...$

Therefore, the missing term is:

$a_2=14$

4 0

3 years ago

Today, 6 friends went out for lunch. Their total bill was $50.41 , including tax and gratuity. One of them ordered only soda and

Burka [1]

Answer:

50.41 minus 1.71 is 48.70 divided by 5 is 9.74

3 0

3 years ago