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olga_2 [115]
3 years ago
8

Please Help!!!

Mathematics
2 answers:
Nata [24]3 years ago
6 0

The correct answer is (d). If d represents the number of dimes and q the number of quarters, the total number of coins would be <span>d+q</span>, which is given as 40 in the prompt: <span>d+q=40</span>

Since each dime is worth ten cents and each quarter worth twenty-five cents, their total value would be <span>0.10d+0.25q</span> which would total 5.80.: <span><span>0.10d+0.25q=5.80        I HOPE THIS HELPS YOU</span></span>

Natasha2012 [34]3 years ago
4 0
D) d + q =40
0.10d+0.25q=5.80
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In ΔKLM, m = 5.3 inches, ∠K=21° and ∠L=88°. Find the length of k, to the nearest 10th of an inch.
gtnhenbr [62]

Answer:

20.9 ft

Step-by-step explanation:

This is a right triangle trigonometry question because N is 90 degrees. MN is adjacent to M and LM is the hypotenuse. Adjacent any hypotenuse use the cosine function. 

plug in known values

switch cos(20) and x using the products property

plug into calculator to get 20.9 ft

6 0
3 years ago
HELLPPP!!!! also please explain so i don’t have to ask again :(
shusha [124]
Tan(theta)=opposite/adjacent
Tan(31)=x/10
(Tan(31))10=x
X=6.0086
8 0
3 years ago
I’m confused on this
dexar [7]

\huge\boxed{x=25}

The mistake is in Step 1. The solver should have also squared 9 when squaring the other side of the equation.

<h3>Correctly solving</h3>

\begin{aligned}\sqrt{3x+6}&=9\\(\sqrt{3x+6})^2&=9^2\\3x+6&=81\\3x+6-6&=81-6\\3x&=75\\\frac{3x}{3}&=\frac{75}{3}\\x&=25\end{aligned}

4 0
2 years ago
Read 2 more answers
Please help on this math question!!
katrin2010 [14]

Answer:

x = 49

Step-by-step explanation:

The third side of the largest of the inner triangles:

= \sqrt{(7\sqrt{(33)^{2} }- (33)^{2}

=\sqrt{528} =\sqrt{(16)(33)} =4\sqrt{33}

The side that continues next to 33: x -33

Applying similarity property on right triangles:

\frac{33}{4\sqrt{33} } =\frac{4\sqrt{33} }{x-33}

(33)(x-33)=(4\sqrt{33} )^{2}

33x-1089=528

33x=528+1089

x=\frac{528+1089}{33} =49

Hope this helps

6 0
2 years ago
To construct a line parallel to a given line m to a point not on m, you need to know how to construct_______angles?
Lelu [443]
It would be either C or A, sorry I cant help anymore than that
6 0
3 years ago
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