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3 years ago

Help I’m so dumb ://

Mathematics

1 answer:

il63 [147K]3 years ago

8 0

Answer:

The corresponding angles are congruent and the corresponding sides are congruent.

Step-by-step explanation:

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Chem deposited $115.00 in a savings account. Each week thereafter, he

Yanka [14]

Answer:

Part a) $y=35x+115$

Part b) $\$1,165$

Step-by-step explanation:

Part a)

Let

x -----> the number of weeks

y ----> the total amount Chem has deposited in a saving account

we know that

The equation of a line in slope intercept form is

$y=mx+b$

where

m is the rate or slope of the linear equation

b is the y-intercept of the linear equation or initial value (value of y when the value of x is equal to zero)

In this problem we have that

The rate or slope is equal to

$m=35\frac{\$}{week}$ -----> amount deposited by Chem each week

The y-intercept or initial value is

$b=\$115$ ----> amount deposited originally in the saving account

substitute the values

$y=35x+115$

Part b) How much has Chem deposited 30 weeks after his initial deposit?

For x=30 weeks

substitute in the equation

$y=35(30)+115$

$y=\$1,165$

5 0

3 years ago

F(x) = 3x + 21; solve for f(3) and f(7)

Inessa [10]

Answer:

Step-by-step explanation:

Given that f(x) = 3x + 21

Plug in 3 for x

F(3)= 3(3) +21

F(3) = 9+21

f(3) = 30

Plug in 7 for x

F(7)= 3(7) +21

F(7) = 21+21

f(7) = 42

7 0

3 years ago

At a farm the ratio of cows to horses was 7:2. If there were 21 cows at the farm, how many horses were there?

beks73 [17]

Answer: 6 horses bc you just have to multiply by 3

6 0

3 years ago

Read 2 more answers

If $x$ and $y$ are positive real numbers for which $(x + y)^2 + (x - y)^2 = 10$ and $(x + y)^4 + (x - y)^4 = 98$, what is the va

slava [35]

$(x+y)^2+(x-y)^2=10$
$\implies 2x^2+2y^2=10$
$\implies x^2+y^2=5$
$\implies (x^2+y^2)^2=x^4+2x^2y^2+y^4=25$

$(x+y)^4+(x-y)^4=98$
$\implies 2x^4+12x^2y^2+2y^4=98$
$\implies x^4+6x^2y^2+y^4=49$
$\implies 25+4x^2y^2=49$

$4x^2y^2=24$
$\implies x^2y^2=6$
$\implies xy=\sqrt6$

6 0

4 years ago

Evaluate the expression when a=6 and b = 50.<br> b-4a

denis23 [38]

Answer:

Step-by-step explanation:

sub it it

50-(4×6)

50-24

3 0

3 years ago

Read 2 more answers